Patricia Hearst essays

Patricia Hearst essays Born into a wealthy and well- known family Patricia Hearst had luxuries that many kids never grow up with. She lived in a mansion and grew up in catholic schools. Her Parents Randolph and Catherine Hearst were strict with their five daughters. As Patty grew up she became more distant from her parents and decided to go to a public high school. There is where she met Steven Weed; he was a young teacher who had just graduated from Princeton University. He became her math tutor, but not long after their relationship turned intimate. Although she was only 17 and he was 23, they continued with their secret relationship. ( internet ) Their relationship continued into college where she went to Menlo College. Patty left to Europe for a summer and, shortly after her return she got engaged to Weed. Her parents did not approve of her choice but there was nothing they can do to stop her. She moved in with Weed at an apartment in Berkeley, California. On February 4, 1974, the doorbell rang at their apartment. Weed went to open the door. There he saw a nervous women who claimed to have backed her car into another car in the driveway, and needed to use their phone. He had no time to answer before two armed men pushed their way in the door. ( Alexander 5) Weed was left on the floor severely beaten. The abductors dragged Patricia out the apartment and forced her into the trunk of their car. Her screams attracted the attention of her neighbors but they were too scared to do anything. She rode in the trunk for a few minutes and then was switched to the floor of a white station wagon a few blocks away. From there she was taken to the hide out witch turned out to be her prison. Her abductors turned out to be the Symbionese Liberation Army, who was led by ex-convict Donald Defreeze, known as Cinque Mtume. This group took responsibility for the assassination of Marcus Foster, an Oakland school superintendent. Joe Ramiro and Russell L...

Role of casein hydrolysate manufacturing conditions on hydrolysate technofunctional properties Essay Example

Role of casein hydrolysate manufacturing conditions on hydrolysate technofunctional properties Essay Example Role of casein hydrolysate manufacturing conditions on hydrolysate technofunctional properties Essay Role of casein hydrolysate manufacturing conditions on hydrolysate technofunctional properties Essay Introduction 1.1 Casein Milk contains about 30-35g protein /L. Approximately 80 % of which are present in casein micelles, these are big spherical composites incorporating 92 % protein and 8 % low molecular mass constituents, chiefly inorganic salts, chiefly calcium phosphate. Caseins represent four cistron merchandises IÂ ±s1-casein, IÂ ±s2-casein, I?-casein and I?-casein. Figure 1.1.1 shows the different protein types and their concentrations in milk. ( Advanced nutrient Chemistry A ) ( Advanced Food Chemistry A ) The precise construction of the casein is micelle has been subjected to legion scientific studied. Several theoretical accounts have been proposed over the last figure of old ages in order to depict casein micelle behavior. Caseins have distinguishable countries of positively and negatively charged groups in their primary constructions ensuing in amphiphilic belongingss. The caseins are known as rheomorphic proteins as they have highly flexible molecular construction. The caseins are thought to hold IÂ ±-helical or I?- sheet constructions, once more this is merely from theoretical surveies no such constructions have been found in the caseins because they have yet to be successfully crystallised. The secondary construction is loose and lacks order due to the high figure of proline residues which cause the protein concatenation to flex in a peculiar manner. Casein micelles are really stable against heat denaturation. As there is no third there is considerable exposure of hydrophobic residues, these consequence in strong association reactions and makes them comparatively indissoluble in H2O. All the caseins are conjugated proteins, most with one or more phosphate groups which are esterified to serine residues. These phosphate groups are of import to the construction of the casein micelle as Ca binding of the caseins is relative to the phosphate content. Table 1.1.2 shows some of the physicochemical features of the casein micelles. ( University G ) Physicochemical Features of Casein Micelle Diameter 50-300nm Surface Area 8 ten 10-10 cm2 Volume 2 ten 10-15 cm3 Density 1.063 g cm-3 Molecular weight ( hydrated ) 1.3 ten 109 Da Fullness 4.4cm3 per g protein Hydration 2g H2O per g protein Water Content ( hydrated ) 63 % ( Handbook ) ( Table 1.1.2 ) 1.2 Sodium Caseinate Manufacture ( Fig 1.2.1 ) ( Handbook ) Figure 1.2.1 gives a basic representation of the fabricating procedure of Na caseinate. The procedure involves foremost the separation of milk and pick, followed by pasteurisation. The caseins are so precipitated either by the add-on of a coagulator such as rennet or by a decrease in pH to 4.6 ( its isoelectric point ) . The curdled protein is heated to organize a curd. The curd is so separated from the whey by filtration or centrifugation in combination with counter-current rinsing with H2O. The curd is so reacted with an base, eg Na hydrated oxide and so dried to organize a caseinate. ( Handbook ) 1.3 Bioactive Peptides The primary construction of proteins consists of certain aminic acid sequences that have the ability to exercise physiological benefits in human existences. The amino acid sequences remain inactive when they are present as portion of the uninterrupted primary construction of the parent protein. However, when the parent protein is acted upon by an appropriate enzyme, the peptide is released ( Dr Rotimi Aluko ) . Enzymatic hydrolysis of milk proteins has been shown to cut down antigenicity, and increase biological activity for illustration by the release of immunomodulating, opioid and antihypertensive peptides. To this terminal, turning involvement has been focused on physiologically active peptides derived from milk proteins. In add-on, the little peptides present in protein hydrolysates are absorbed more quickly from the bowel than free amino acids or integral proteins. ( Spellman et Al ) . A sum-up of bioactive peptides which are derived from milk proteins and their maps are displa yed in figure 1.3.1 ( Hannu K ) ( Fig 1.3.1 ) 1.4 Enzyme readying The enzyme readying used for casein hydrolysis in this survey was Prolyve 1000a„? a commercially available protease readying which is of bacterial beginning. This readying contains the enzyme Subtilisin Carlsberg which is from a household of serine endopeptidases isolated from Bacillus licheniformis. Endopeptidases are enzymes which cleave within the protein or polypeptide concatenation. Subtilisin Carlsberg has a wide specificity for the hydrolysis of peptide bonds, with a penchant for a big uncharged residue. It is an aromatic enzyme with a penchant for carboxyl side cleavage. Hydrolyzes peptide amides incorporating leucine and tyrosine residues. This enzyme readying has been used in the hydrolysis of whey proteins ( Spellman et Al, 200 ) nevertheless to day of the month at that place does non look to be any publications utilizing this enzyme activity in the hydrolysis of casein substrates. 1.5 Resentment The chief disadvantage of protein hydrolysis is bitterness. Integral nutrient proteins due to their molecular size are improbable to interact with the taste-bud receptors and as such would non lend significantly to season ( Enzymology ) . As hydrolysis interruptions down these proteins into much smaller peptides interaction with taste-bud receptors can happen. Besides in Intact casein micelles the most hydrophobic amino acids are oriented towards the inside of the molecule, during hydrolysis peptides incorporating hydrophobic amino acids are released. As hydrolysis continues, more hydrophobic amino acid residues become exposed for this ground hydrolysate resentment by and large increases with increasing hydrolysis ( Spellman et Al ) . The Q-rule devised by ( Ney, 1971 ) established a quantitative relationship between the amino acerb composing of a peptide and its resentment. Using the values calculated by ( Tanford,1962 ) , the Q-rule stated that peptides with an mean hydrophobicity ( Q ) value greater than 1400calmola?’1 and with molecular multitudes below 6000Da elicit a acrimonious taste. ( Lemieux,1992 ) . Figure 1.5.1 shows several protein types and their Q values, it besides shows the different casein categorizations and their single Q values. I?-casein has a Q value of greater than 1400 kcal mol-1 this may slightly predispose to bitterness if during the hydrolysis the proteins are broken down to peptides weighing less than 6000Da ( Figure 1.5.1 ) Bitter peptides typically contain 3-15 amino acids and are characterised by the presence of hydrophobic aminic acids such as leucine, isoleucine, proline, valine, phenylalanine, tyrosine and tryptophan. ( Enzymology ) . The distinguishable acrimonious spirit of protein hydrolysates has been a major restriction in their usage in nutrient and wellness merchandises, they would necessitate to be incorporated into nutrients at really low concentrations to forestall its presence bring forthing an unacceptable spirit. 1.6 Enzymatic Hydrolysis of protein and the factors which affect it Enzymatic hydrolysis of protein is the procedure by which proteins are broken down by peptidases. Several factors affect the rate hydrolysis these include, enzyme specificity, extent of protein denaturation, enzyme: substrate ratio, entire solids concentrations, viscousness, pH, ionic strength, temperature and absence or presence of repressive substances. The specificity of an enzyme is a cardinal factor, act uponing both the figure and location of the peptide linkages that are hydrolyzed. Endopeptidases cleave the peptide linkage between two next amino acid residues in the primary sequence of a protein, giving two peptides. Proteolysis can continue either consecutive, by let go ofing one peptide at a clip, or through the formation of intermediates that are farther hydrolyzed to smaller peptides. ( Panyam et al, 1996 ) . There is really small information available about the consequence of entire solids on the rate of hydrolysis or the resulting belongingss of the hydrolysate samples. Spellman et Al, 2004 carried out a survey on whey protein hydrolysates and how entire solids affected the rate of the hydrolysis and the physiochemical belongingss of the end point hydrolysates. They concluded that the resentment of the hydrolysate samples decreased with increasing entire solids concentrations. Viscosity is the step of opposition to flux. Solvent viscousness can act upon rates of enzyme catalyzed reactions by two principle mechanisms: ( 1 ) Since molecular diffusion coefficients vary reciprocally with the viscousness of the medium, an addition in solvent viscousness will take to a lessening in the association rate of an enzyme and substrate. This will attest itself in a viscosity-dependent lessening in kc/Km for reactions in which the procedure that is governed by kc/Km is diffusion-controlled. ( 2 ) Since dissolver viscousness dampens structural fluctuations of proteins through frictional effects, additions in solvent viscousness will take to lessenings in reaction rates for catalytic procedures that are dependent on enzyme structural fluctuations Dang, 1998 this is supported by surveies from Gavish, 1979 and Ng, 1991 The consequence of temperature on the rate of enzymatic hydrolysis relates to the enzyme and the optimal conditions to ease its reaction but besides to the substrate where cautiousness must be taken in order to avoid /facilitate heat denaturation. Whichever of the conditions is preferred should be controlled. pH besides affects the rate of enzyme action and may present a menace of denaturation the enzyme. pH besides has an consequence on protein solubility. The iso-electric point is the pH at which the protein has no net charge, at this pH proteins would lose solubility and precipitate out of solution. Enzymes work better on proteins in solution. The ionic strength of the may impact the rate of hydrolysis. A solution of low ionic strength ( 0.5M 1.0M ions of impersonal salts ) may increase the solubility of the protein by salting in . Whereas concentrations above 1.0M may cut down the solubility of the protein as it causes increased competition for H2O molecules, favoring protein- protein interactions and thereby salting out . 1.7 TNBS Assay The method used to quantify the grade of hydrolysis ( DH ) of the Na caseinate hydrolysates was the trinitrobenzenesulfonic acid ( TNBS ) assay that was described by Adler-Nissen,1979 ) . Degree of hydrolysis ( DH ) is defined as the per centum of the entire figure of peptide bonds in the protein which have been cleaved by hydrolysis. The TNBS Assay was used in this undertaking as it has been proven to be a extremely accurate method for quantifying the DH of hydrolysate samples ( Spellman, 2003 ) . The one drawback of this method is that is requires long incubation and chilling stairss. This method is a spectrophotometric check of the chromophore formed by the reaction of the TNBS with primary Zanzibar copals. Figure 1.8.1 is a representation of the basic mechanism of how the TNBS check plants. Simply put the TNBS reagent binds to the NH2 group of the peptides in the sample and in making so creates a xanthous coloring material. The more hydrolyzed the sample is the more peptides there are and hence the more NH2 groups to adhere to and the more xanthous the solution will go. These solutions are so read spectrophotometrically . This check consists of several stairss foremost the protein hydrolsate is dispersed in hot 1 % Na dodecyl sulphate ( SDS ) , this serves to guarantee an accurate consequence as it prevents clip-clop of the protein and enables the TNBS reagent to split all of the NH2 groups. This reaction favours somewhat alkalic conditions ( pH 8.2 ) which is facilitated by the add-on of Na phosphate buffer. TNBS reagent reacts easy with hydroxyl ions and could do the space to give a false somewhat increased reading. This addition is stimulated by visible radiation and for this ground many of the stairss are carried out in the dark, such as the incubation for 1hour at 50Â °C and the subsequent expiration of the reaction which is achieved by take downing the pH. Termination is accomplished by the add-on of HCL, cautiousness must be taken to guarantee that the pH does non drop at a lower place 3.5 as this would causes turbidness. The samples are allowed to chill at room temperature for 30mins, chillin g below room temperature may besides do turbidness. After standing for 30mins the samples and their optical density readings are stable and more accurate. 1.8 Reverse Phase -High Performance Liquid Chromatography ( RP-HPLC ) Reverse-phase ( RP ) HPLC is an indispensable tool in the separation of proteins and peptides. RP-HPLC is widely used in protein surveies because of its versatility, sensitive sensing ( can divide proteins of about indistinguishable construction ) and its ability to work together with techniques such as mass spectroscopy. High public presentation liquid chromatography severs to heighten detectability of the analyte and can be applied to the analysis of any compound with solubility in a liquid that can be used as the nomadic stage ( Rounds, 1988 ) . The major constituents of a high public presentation liquid chromatography system include a pump, injector, column, sensor and information system. Change by reversal stage -HPLC is where the mutual oppositions of the stationary stage and the nomadic stage are reversed in comparing to the normal stage of soaking up chromatography ( Macrae, 1988 ) . The stationary stage is a solid support that is non-polar. Reversed stage media are composed of a base matrix to which organic ligands for surfacing silicon oxide such as octyl ( C8 ) or octadecyl groups ( C18 ) are attached ( Sofer, 1997 ) . The nomadic stage is a polar liquid that flows over the stationary stage. The sample is dissolved in the initial nomadic stage ( eg. Trifluoroacetic acid ) prior to being filtered and applied by injection to the column. Polar nomadic stages are normally H2O assorted with methyl alcohol, acetronitrile or trifluoroacetic acid ( Rounds, 1988 ) . The interaction of the constituents bring separated and the stationary stage rely on hydrophobic interactions and this determines the grade of migration in the column and separation of the constituents in the sample. Polar compounds are the first to be eluted as they are hydrophilic and have hebdomad interactions with the stationary stage. The pumps map is to present the nomadic stage through the system at a controlled flow rate of 1ml/min. Gradient elution system is used which involves two independent programmable pumps that are mixed at high force per unit areas ( Rounds, 1988 ) . This allows different compounds to be eluted by increasing the strength of the organic dissolver in a additive manner. The usage of a valve injector places the sample for dividing into the following nomadic stage and it is carried in this liquid for debut into the column. The sample injection is normally automated. The HPLC column is normally constructed of chromium steel steel tubing with eradicators that allow it to be connected between the injector and sensor of the system ( Rounds, 1988 ) . The packing stuff for this column is in the signifier of a chromatographic bed and acts as both a stationary stage and a support. The sensor for the HPLC is the constituent that emits a response due to the eluting sample compound/ concentration alterations in the column eluent and later signals a extremum on the chromatogram. Peptides do non absorb light above 220nm and soaking up of 214nm may be used to follow the concentration of peptides in the column wastewater ( Sofer, 1997 ) . Optical density of peptide at this wavelength is performed as peptides do non hold a 3-dimensional construction and all the amino acids are exposed and easy interact with the chromatographic media. Proteins don non hold the same interaction with the media as merely a little measure of its molecules tend to interact. Proteins usually show an optical density at 280nm due to the content of aromatic amino acid replacements ( Sofer, 1997 ) . Ultra violet sensing allows following of protein concentration of the wastewater and a chromatogram visually shows the extremums of the peptides and aromatic amino acids nowadays in sample. Column and nomadic stage temperature and pH can impact the separation of proteins and peptides by RP-HPLC. Increasing the temperature reduces the keeping of peptides. The temperature affects the comparative keeping of selectivity, which affects declaration ( David Carr ) . 1.9 Centripetal Evaluation Centripetal rating involves both rules of experimental design and statistical analysis. Centripetal rating of nutrient can utilize the human senses of gustatory sensation, touch, sight and odor to measure different facets of nutrient such as spirit, texture, visual aspect and olfactory property. For this undertaking the accent is on spirit and gustatory sensation will be the sense of pick. Flavour can be referred to as the esthesis perceived from nutrient or liquid taken in the oral cavity ( Fisher et al, 1997 ) . The four basic gustatory sensations are sweet, rancid, salty and bitter. For this undertaking a centripetal panel was selected and trained. Campaigners for the panel were selected foremost on the footing of being able to separate between Sweet, rancid, salty and bitter. Successful campaigners were so trained to observe and quantify resentment utilizing caffeine criterions. Statistical analysis of the resentment tonss was carried out utilizing the statistical programme R ver sion 2.10.1AÂ © , One-way analysis of discrepancy ( ANOVA ) and independent-samples t-tests were performed on centripetal informations. A important consequence was defined as P lt ; 0.05, a extremely important consequence was defined as P lt ; 0.001. Centripetal rating is a important facet in every undertaking whose ultimate end is to market a food/ functional nutrient merchandise. Bitterness is a major restricting factor in the production and incorporation protein hydrolysate into nutrients and centripetal rating is the most effectual method of finding the resentment degree. 1.10 Aims of this survey The aims of this survey are: O To bring forth Na caseinate hydrolysates at different protein/ entire solids concentrations. O Physicochemical word picture of the hydrolysate samples. O Selection and preparation of a centripetal panel to find the degree of resentment of the hydrolysates. O To find if the resentment of Na caseinate hydrolysates is related to protein/ entire solids concentration at which the hydrolysates were generated. Chapter 2 Materials and Methods 2 Materials and Methods 2.1 Materials Sodium caseinate was obtained from Kerry Group, Ireland and its protein content was determined to be 88.01 % utilizing Kjeldhal analysis. Prolyve 1000 was obtained from Lyven Enzymes Industrielles, Caen, France Trifluoroacetic acid ( TFA ) , HPLC class acetonitrile, L-leucine, HPLC grade H2O, Citric acid, Na chloride, sucrose and caffeine were obtained from Sigma Chemical Co. ( Poole, Dorset, UK ) . PuradiscTM 25 AS disposable syringe filters ( 0.2 AÂ µm ) , Supor_ hydrophilic membrane filters ( 47 millimeter, 0.2 lumen ) and 2N NaOH ( Titripur, SWR, 1.09136,1000 ) were obtained from VWR chemicals, Ireland. 2.2 Protein finding utilizing the Kjeldahl process The Kjeldhal method for finding protein concentration is an accretion of several reactions, the first of which is digestion, where protein N is liberated to organize ammonium ions. Sulphuric acid oxides organic affair and it combines with the ammonium formed. The 2nd reaction consists of the sulfuric acid in the sample being neutralised with NaOH organizing ammonium hydroxide which is so distilled into a 4 % boracic acerb solution for the 3rd reaction. For the forth reaction a titration takes topographic point between the borate ions formed and the standardized 0.1M HCL until a pH of 4.6 is reached. Oz Moles of HCL= Moles of NH3 = Moles of N in sample. % Nitrogen x transition factor ( 6.38 ) = % protein Approximately 0.2g of Na caseinate pulverization was accurately weighed out and transferred into a Kjeldhal flask. Sucrose was used as a space. Into each flask 20mL of concentrated H2SO4 ( Low in N ) and two kjeldhal tablets. The samples were so placed in the Kjeldhal digestion unit ( Buchi, Labortechnik AO, Postfrach, Switzerland ) at 120Â °C for half an hr and temp increased to 420Â °C for 2 hours. During this clip digestion of organic affair in the sample occurs. After digestion the tubings are so cooled before being transferred to the Kjeldhal Buchi B323 Distillation unit for distillment and subsequent finding of protein content. This process was performed in triplicate. 2.3 Enzymatic hydrolysis of Na caseinate For the balance of this thesis the hydrolysate samples will be referred to in respects to protein concentration. Table 2.3.1 shows protein concentration in proportion to entire solids concentration for the Na caseinate hydrolysates generated at different protein/ entire solids concentrations. Table 2.3.1 Protein Concentration Entire Solids Concentration 5 % ( w/v ) 56.8g/L 10 % ( w/v ) 113.6g/L 15 % ( w/v ) 170.4g/L 20 % ( w/v ) 227.2g/L The enzymatic hydrolysis experiments were carried out in a 2L certain reaction vas ( ___ ) . The aqueous solutions of Na caseinate were allowed to hydrate for ~ 2hours at 50Â °C with the assistance of an overhead scaremonger. The solutions were so stored in a electric refrigerator at 4Â °C nightlong. On the twenty-four hours of the hydrolysis the solutions were equilibrated to 50Â °C and the pH was so adjusted to 7 by the add-on of 2N NaOH before the add-on of the enzyme. Prolyve 1000 was added at an enzyme: substrate ( Tocopherol: S ) ratio of 25ml enzyme readying / kilogram protein. The Tocopherol: S ratio was estimated on the footing of what has antecedently worked for whey, the standard add-on was 0.25mls of enzyme solution per 100ml to 10 % solution. The solution was assorted with an over caput scaremonger ( Heidolph Instruments, Schwabach, Germany ) and the pH was kept changeless throughout the hydrolysis utilizing a pH stat ( 718 Stat Titrino, Metrohm, Herisau, Switzerland ) . Hydrolysate samples were taken at assorted clip intervals, rapidly brought to 80Â °C utilizing a microwave and so maintained at 80Â °C for 20mins in a H2O bath to demobilize the enzyme. The samples were so stored at -20Â °C until required for analysis. 2.4 Quantification of Degree of Hydrolysis ( DH ) The TNBS reagent was made up of 0.1 % ( w/v ) TNBS in H2O. 1 % ( w/v ) SDS was used as the space and l-Leucine was used as the criterion. Samples and standard solutions were prepared in 1 % ( w/v ) SDS. The hydrolysate samples were diluted ( 1 in 51, 1 in 76, 1 in 101, 1 in 126, 1 in 151 A ; 1 in 201 in conformity with their protein concentrations ) . All samples were done in triplicate. 0.25 milliliter of the trial, integral Na caseinate ( control ) and l-Leucine criterion solutions was added to prove tubings incorporating 2.0mL of Na phosphate buffer ( 0.2125 m, pH 8.2 ) . The undermentioned stairss are light sensitive and took topographic point in the dark: 2 milliliter of TNBS reagent was so added to each tubing, followed by vortexing and incubation at 50AÂ °C for 60 min in a covered H2O bath. After incubation, the reaction was stopped by the add-on of 0.1N HCl ( 4.0 milliliter ) to each tubing. The samples were so allowed to chill in the dark at room temperature in order to st abilise the optical density readings. The optical density values were so read at 340nm utilizing a ( Carey 100 dual beam spectrophotometer ) The DH was calculated as follows: Where the N content of peptide bonds = 112.1 milligram of Nitrogen /g of protein for casein substrates. The protein concentration became marginally more dilute as NaOH was added throughout the hydrolysis reaction ; the protein concentration was calculated consequently. 2.5 RP-H.P.L.C. Reversed-phase HPLC was carried out on the Na caseinate hydrolysate samples utilizing a Waters HPLC system, consisting a Model 1525 binary pump, a Model 717 Plus autosampler and a Model 2487 double IÂ » optical density sensor interfaced with a BreezeTM data-handling bundle ( Waters, Milford, MA, USA ) . The column used was a Phenomenex Jupiter ( C18, 250r4.6 millimeter ID, 5 millimeter atom size, 300AAÂ ° pore size ) dividing column ( Phenomenex, Cheshire, UK ) with a Security GuardTM system incorporating a C18 ( ODS ) broad pore cartridge ( 4r3 millimeter ID, Phenomenex, Cheshire, UK ) . The column was equilibrated with dissolver A ( 0.1 % TFA ) at a flow rate of 1.0 ml min-1 and peptides were eluted with an increasing gradient of dissolver B ( 0. 1 % TFA, 80 % acetonitrile ) . TFA is used in HPLC as it improves symmetricalness of signals. Detector response was monitored at 214 nanometer A ; 280nm. The Na caseinate hydrolysate samples were diluted to 0.8 % ( w/v ) in 0.1 % TFA, filtered through 0.2 AÂ µm syringe filters and 20 AÂ µl was applied to the column. The undermentioned tabular arraies show the 3 different gradient profiles used in analyzing the samples. Basic contrary stage high public presentation liquid chromatography gradient profile Time Flow % A % B Curve 1 0.01 1.00 100.0 0.0 6 2 4.00 1.00 100.0 0.0 6 3 54.00 1.00 40.0 60.0 6 4 55.00 1.00 0.0 100.0 6 5 65.00 1.00 0.0 100.0 6 6 70.00 1.00 100.0 0.0 6 7 85.00 1.00 100.0 0.0 6 ( Table 2.5.1 ) Modified Profile 1 Time Flow % A % B Curve 1 0.01 1.00 100.0 0.0 6 2 4.00 1.00 100.0 0.0 6 3 84.00 1.00 40.0 60.0 6 4 85.00 1.00 0.0 100.0 6 5 95.00 1.00 0.0 100.0 6 6 100.00 1.00 100.0 0.0 6 7 115.00 1.00 100.0 0.0 6 ( Table 2.5.2 ) Modified Profile 2 Time Flow % A % B Curve 1 0.01 1.00 100.0 0.0 6 2 4.00 1.00 100.0 0.0 6 3 114.00 1.00 40.0 60.0 6 4 115.00 1.00 0.0 100.0 6 5 125.00 1.00 0.0 100.0 6 6 130.00 1.00 100.0 0.0 6 7 145.00 1.00 100.0 0.0 6 ( Table 2.5.3 ) The ultimate profile used on the samples with similar DH values but of different protein concentrations was the modified profile 2. 2.6 Centripetal In choosing campaigners for the gustatory sensation panel a acknowledgment trial for the four gustatory sensations was foremost performed. This involved doing up solutions of citric acid monohydrate ( rancid ) , sucrose ( sweet ) , caffeine ( acrimonious ) and NaCl ( salt ) all of which were made up in Ballygowan still H2O. At least two concentrations of each sample stand foring a gustatory sensation were included in the centripetal rating see table 2.6.1 Recognition Test Layout Sample Letter Concentration Chemical ( Taste ) A 0.02 % ( w/v ) Citric acid monohydrate ( Sour ) Bacillus 0.40 % ( w/v ) Sucrose ( Sweet ) C 0.03 % ( w/v ) Citric acid monohydrate ( Sour ) Calciferol 0.02 % ( w/v ) Caffeine ( Bitter ) Tocopherol 0.08 % ( w/v ) NaCl ( Salty ) F 0.60 % ( w/v ) Sucrose ( Sweet ) Gram 0.03 % ( w/v ) Caffeine ( Bitter ) Hydrogen Ballygowan still H2O Joule 0.15 % ( w/v ) NaCl ( Salty ) K 0.04 % ( w/v ) Citric acid monohydrate ( Sour ) ( Table 2.6.1 ) The campaigners were told that the samples contained natural Sweet, salty, rancid and acrimonious compounds. They were asked to savor each sample separately and bespeak whether the sample was sweet, salty, rancid or bitter in the provided infinites. If the sample tasted like H2O they were asked to tag with a nothing ( 0 ) , if they were unsure of the gustatory sensation they were asked to tag with a inquiry grade ( ? ) . When savoring the sample the campaigners were asked to twirl the solution around your oral cavity guaranting it contacts all parts of the lingua. Between samples, campaigners were asked to eat a piece of un-salted cracker and rinse their oral cavities exhaustively with still mineral H2O. A cut off point was set at 6 right replies, 1 of which must be acrimonious or 5 right replies, 2 of which must be acrimonious. Out of the 17 campaigners screened, 7 were selected for bitterness preparation. For the resentment preparation campaigners were asked to delegate bitterness tonss to unknown solutions based on a 0-100 % graduated table, where a 100 % acrimonious solution was taken to hold a resentment value equivalent to 1 g caffeine/L. Still mineral H2O was used as the 0 % bitterness criterion. All 7 displayed a strong ability to observe differen

Business strategy mcdonald Essays

Business strategy mcdonald Essays Business strategy mcdonald Essay Business strategy mcdonald Essay If we all have different receptions of reality then the big question is; do we know real true picture of reality? Reality in accounting is something I believe is very hard for us people to determine. Firstly is that most of the measurement used in the accounting system are arbitrary. How can we know that something which is based on random choice or personal whim, rather than any reason or systems is the truth? Secondly accounting is also based on assumptions. So what is seems like that in accounting there is no such thing as reality. Obviously we couldnt know what is true if methods of accounting are based on arbitrary methods and assumptions. If this is so, then again the big question is; how can accountants communicate reality if we dont know what is reality. A. In the given question, the directors decision on deciding not to life the going concern assumption while the companys performance and position is deteriorating is totally wrong and unethical. The company knew very well that there are people out there who are going to rely on their financial decisions to make very important decisions. Not lifting the going concern assumption will make stakeholders think especially primary users that the companys financial performance and position is going well and healthy when in act its not. In this case the directors are communicating a false reality. B. Well communicating a false reality doesnt mean that also you are creating a false reality. For God. Anything can happen in the future. Revenue might increase as well as sales, profit might increase and the business might again run well. In this case the company is creating a reality. . ) Fiji Sugar Corporation. The Fiji Sugar Corporation is said to be responsible for the pollution of the Aqua River in Labs. The question to ask is whether the Fiji Sugar Corporation (FCC) is really responsible for the pollution of the Aqua River that had resulted in the killing f the marine life. Or is the waste dumped by the FCC in the Aqua River the cause of pollution. It is being evident that the waste dumped by FCC to the river is the direct c ause of the killing of the marine life in the river. ( If]times. Mom) (The Fiji Times, 24/12/08) Last year we took samples from the river and results confirmed that the chemicals were from FCC so this new testing is part of our prosecution process. Mr Kumar Tests result shows that the death of river plants and vaporizing useful gases is the result of a rise in temperature in the river that was caused by hot water being poured into the Aqua River.. All Saints Secondary School students and hundreds of residents beside the river complained of headache as a result of the pollution by FCC. ( If]times. Mom) (Fiji times, 03/09/09) With the evidence given above, can we say that the organization is responsible for the pollution of the Aqua River? Ruth D Hines said that we must not think that the fence of the organization sets the limit or the boundary of the organization. The only thing the fence does is to separate the other people from the organization or to designate it so to speak. Well in terms of pollution, I do agree that the organization is responsible for the pollution. As evident above that the waste dumped by the FCC is the direct cause of the pollution which had an adverse effect on the river, environment and the people. If it wasnt for the organization dumping rubbish into the river there wouldnt have been any pollution. Hines also said that we should account for something that we are accountable for. It would be unethical for FCC not to account for the pollution caused by them. Even though we might think that the pollution is outside of the organizations context but in reality we know that the damage to the environment is directly caused by pollution by the organization. As a conclusion we can say that pollution is very much part of the organization. As it is the direct effect and outcome of the production process of the organization. So Fiji Sugar Corporation should account for the pollution. B. ) The organization is now placing more significance on sustaining a clean environment in particular waste water release from mill operation and air pollution not only for its staff but its stakeholders too. The organization is aiming on the execution of various engineering controls. This will result in the minimization of waste to the environment and by doing this they will e adhering to the Mill Upgrade Program. All mills around the country had formed committees that will observe and address pollution. Annual report 2010). Recognizing revenue in the period or periods that the revenue-generating activities of the companies are performed is the objective of the firm. There are two conditions that needs to be satisfied before revenue can be recognized in the realization principle: 1 . The earnings process is Judged to be complete or virtually complete (the earnings process refers to the activity or activities performed by t he company to generate revenue). 2. There is reasonable certainty as to the collegiality of the asset to be received (usually) (http://connect. McGraw-hill. Mom) Businesses recognize revenues ate different point in time due to a number of reasons: Businesses are different in nature. The activities performed by the companies to generate revenue are differently judged to be complete. It because of these two catteries that revenue are differently recognized. For example revenue from selling of inventory are recognized at the date of sale often interpreted as the date of delivery. This is because at the date of delivery the earnings process is Judged to be complete. For revenue from rendering services are recognized when services are completed and billed.

ECRM and Touch Points Assignment Example | Topics and Well Written Essays - 250 words

ECRM and Touch Points - Assignment Example The first strategy component must be operational to help in sharing of information. It implies business operations also run efficiently. Second, maintenance of long-term relationships with clients requires an analytical strategy (Kincaid, 2003). Third, entails collaborative efforts that boost communication technology in various departments especially when dealing with other business partners in inter-organizational settings. However, there are also collections methods that are integral when streamlining the business using the eCRM and touch points methodologies. The first involves observation of customer-focused culture within and without the organization. It helps in understanding their tastes and preferences (Parvatiyar & Shainesh, 2001). Second, an adoption of satisfaction benchmarks that evaluates the clients’ suggestions and complaints in terms of service offered. Another collection method encompasses putting recommendation questions that assess the aspects of buying and selling. It, therefore, is imperative to consider company needs as part of CRM systems that help in estimating the customer strategy (Sagadevan, 2003). This is because it streamlines the company budget through provision of CRM solutions that include broadening the sales to enhance flexibility. Overall, customer-centered services remain the most important part of customization and product configuration in the use of information technology

Case Analysis and Recommendation Research Paper

Case Analysis and Recommendation - Research Paper Example The issue started on 11 March 2008, when Shared refused to participate in a GSD sponsored event to attend to a family obligation. Haydar though, his direct supervisor, did not express objection of any sort but reported the matter to Sahib beyond Shared’s knowledge. For the following four weeks, Shared was denied of assignments upon Sahib’s instruction. Nevertheless, when he approached Haydar, Shared was advised not to get troubled by the setup. On 06 April 2008, Shared was summoned, without prior notice, to the office of the Employees Relations’ Head on account of the aforementioned recommendation. This was the only time Shared was informed of the presence of a disciplinary proceeding in which he is the main concern. Tasks in the Accompany Services department were assigned verbally, and partakers are chosen randomly by the division’s director. The same involve planning, arranging and executing detailed programs of visiting business delegations. The departm ent also arranges for a number of other services including security escorts, transportation, and logistics. On the date in question, Shared was not notified of his supposed participation until a few hours before the event. Shared also explained that the red marks on his attendance record were duly sanctioned—notice of late appearance and leave of absence were filed properly. Further, he suggested verifying with his colleagues that he is always within the workplace the entire shift. Shared criticized the action taken by his superiors, and pointed out that he should have received a verbal or written warning before the case is even initiated. The Discipline and Grievance committee investigating Shared’s case knows that both Haydar and Sahib can be held legally responsible for such an unethical procedure. The action taken does not comply with the rules and regulations of the GSD and the Department of Civil Services. Even so, Shared does not want to impair his relationship with his superiors as this may directly impact conditions at work. On 20 April 2008, two separate meetings with Haydar and Sahib were requested by the chairman of the committee. Sahib turned down the request on grounds that the written recommendation was not his doing, while Haydar argued that he did not know about the existing organizational policies, and proposed that the case be terminated as if nothing happened. A case where the main problem is not accurately identified will not be resolved as a whole. There are always sub problems that coexist with the main problem; and at times, without thorough analysis, these are confused with the other. In effect, the proposals intended for resolution are subsequently regarded as ineffective when in fact it is the preliminary procedure that brought about the failure. From this scenario, it can be established that Shared has nearly been a victim of unethical disciplinary practices at work. There are several aspects in the company system that prove ineffectual, thus employees have low morale and do not display confidence in the administration. The Civil Services Department asserts the existence of rules and regulat

Data Mining Lab Report Example | Topics and Well Written Essays - 500 words

Data Mining - Lab Report Example In addition, data on the number of science related course that a student had taken and data on years of professional experience that a student had prior to the course were missing for some of the participants. In addition, data on expected salary for first job had unrealistically low values and required cleaning. Means were used to clean data on previous number of science course and professional experience and expected salary while mode was used to clean ordinal data. A majority of the students, therefore, had undertaken about three science related courses and had about 3.65 years of professional experience in data areas. The students expected first salary of about $ 29795.78. A majority of the students (60.9 percent) were fair in data mining efficiency while only 8.7 were good. Only 21.7 percent had much confidence in becoming data analysts after graduation while 56.5 percent were not sure of their positions. Most of the students lived away from campus with 34.8 percent being within a driving distance while 52.2 percent lived far away, though within the United States. Most of the students preferred a one-by-one virtual meeting. The following histograms illustrate the distributions. Majority of the students have sufficient background knowledge in data mining, having done many related course. They however lack experience in data mining and report average efficiency. Their level of motivation into data analysis profession is low, their locations are far from the campus, and they prefer one-by-one virtual meetings. A one on one approach to learning that focuses on technology for online study is therefore

THE LUXURY FOOD SERVICE INDUSTRY Essay Example | Topics and Well Written Essays - 2000 words

THE LUXURY FOOD SERVICE INDUSTRY - Essay Example The world is also experiencing increasing urbanization as several people shift from rural places to urban centers. As people move from rural areas to urban centers, they tend to change their lifestyle trend especially their eating habits (Pride and Ferrell 26). As the number of people working in office increases, people tend to get less time to prepare foods at their homes. Such consumers under constraint of time usually opt to each outside in restaurants and cafes’. Other factors seen to have led to the high growth in food service industry include tourism. Some investors opt to put up luxurious food service industry for purposes of hosting tourists that visit the country (Great and Gavin 6). Britain is one such country that has witnessed an increase in growth of food service industry over the last decades. The high growth rate has mainly been seen in London the capital city. Among the restaurants based in London include Hakasan, Nobu and Zuma. His are food joints that have been able to build luxury element within the service industry. The question that may be asked is, ‘How have these restaurants been able to build such luxury, and what tools have the restaurants used to build the luxury element? The purpose of this paper is to examine the marketing tools that have been used by Hakasan, Nobu and Zuma to build the luxury element within the foodservice industry. This will also involve analysis of the 7Ps employed by the three restaurants. The paper will conclude by the most important elements derived from the study of luxury service industry in general particularly the food service industry. Finally, the paper will provide a recommendation regarding what has been learnt from the study. The Chartered Institute of Marketing (2) defines marketing as the management process which entails identification, anticipation and satisfaction of the