Physical chemical milk is an emulsion of milk fat in an aqueous solution of proteins, milk sugar and mineral salts. The high molar conductivity of goat milk samples compared to cow's milk indicates a high content of mineral substances. That goat milk is rich in total proteins is also indicated by the protein content in the samples, which are higher than the cow's milk samples. However, higher fat content was recorded in cow's milk samples, which also results in higher surface tension of cow's milk. The freezing point and refractive index of goat milk are higher compared to literature data and cow milk samples. The acidity of goat's milk comes from the acidic properties of casein, citrate, phosphate, etc. it is lower than cow's milk and is in accordance with literature data. The viscosity of pasteurized goat's milk at all temperatures is also higher than that of cow's milk.
{"title":"Physico-chemical Characteristics of Goat Milk from Tuzla Canton","authors":"Melika Tupkušić, Husejin Keran, Melisa Ahmetović, Halid Junuzović, Indira Šestan, Amir Zenunović, Jasmin Sefer, Asmira Čanić","doi":"10.32628/ijsrch24931","DOIUrl":"https://doi.org/10.32628/ijsrch24931","url":null,"abstract":"Physical chemical milk is an emulsion of milk fat in an aqueous solution of proteins, milk sugar and mineral salts. The high molar conductivity of goat milk samples compared to cow's milk indicates a high content of mineral substances. That goat milk is rich in total proteins is also indicated by the protein content in the samples, which are higher than the cow's milk samples. However, higher fat content was recorded in cow's milk samples, which also results in higher surface tension of cow's milk. The freezing point and refractive index of goat milk are higher compared to literature data and cow milk samples. The acidity of goat's milk comes from the acidic properties of casein, citrate, phosphate, etc. it is lower than cow's milk and is in accordance with literature data. The viscosity of pasteurized goat's milk at all temperatures is also higher than that of cow's milk.","PeriodicalId":430334,"journal":{"name":"International Journal of Scientific Research in Chemistry","volume":"57 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141108282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The deprotonation constant of glycine in 10%, 20% and 30% dioxane in dioxane-water system at 298.15 K was determined using the cell: H2(Pt) | Glycine, HCl, X% Dioxane, Hg2Cl2 | Hg …(C-1) m1 m2 and e.mf. of the cell was given by E = E0 - (2.303RT/F) (log mH+ mCl_ + log ?H+ ?Cl_) …(1) where log ?H+ ?Cl_ = - (2A’√μ/(1+√μ) ) + ?1μ (Modified Davies Equation) …(2) which has been given by B Prasad in our laboratory called modified Davies equation for calculating activity coefficient in the system and hence deprotonation constant of glycine can be calculated by calculating mH+ given by the formula: log mH+ = (E0 - E)/K - log mCl_ + (2A’ √μ/(1+ √μ)) - ?1μ …(3) Therefore Free energy transfer can be calculated for 10, 20 and 30% dioxane in dioxane-water system during determination of deprotonation constant of glycine at 298.15 K.
{"title":"Study of Free Energy Transfer in 10, 20 and 30% Dioxane in Dioxane-Water System for Deprotonation of Glycine and Related Thermodynamic Quantities At 298.15 K by E.M.F Measurement","authors":"Mustafa B. Shamsuddin, Anil Kumar Chaohadia","doi":"10.32628/ijsrch23832","DOIUrl":"https://doi.org/10.32628/ijsrch23832","url":null,"abstract":"The deprotonation constant of glycine in 10%, 20% and 30% dioxane in dioxane-water system at 298.15 K was determined using the cell:\u0000\u0000H2(Pt) | Glycine, HCl, X% Dioxane, Hg2Cl2 | Hg …(C-1)\u0000\u0000m1 m2\u0000\u0000and e.mf. of the cell was given by \u0000\u0000E = E0 - (2.303RT/F) (log mH+ mCl_ + log ?H+ ?Cl_) …(1)\u0000\u0000where log ?H+ ?Cl_ = - (2A’√μ/(1+√μ) ) + ?1μ (Modified Davies Equation) …(2) \u0000\u0000which has been given by B Prasad in our laboratory called modified Davies equation for calculating activity coefficient in the system and hence deprotonation constant of glycine can be calculated by calculating mH+ given by the formula:\u0000\u0000log mH+ = (E0 - E)/K - log mCl_ + (2A’ √μ/(1+ √μ)) - ?1μ …(3)\u0000\u0000Therefore Free energy transfer can be calculated for 10, 20 and 30% dioxane in dioxane-water system during determination of deprotonation constant of glycine at 298.15 K.","PeriodicalId":430334,"journal":{"name":"International Journal of Scientific Research in Chemistry","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122379719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
From e.m.f measurements of cells (C-1) and (C-2) it has been established that modified Davies equation is valid in dioxane-water media at least upto 30% dioxane by weight. E0m values of Hg | Hg2Cl2(s), Cl- electrode in dioxane-water media having 10, 20 and 30% dioxane by weight and the corresponding thermodynamic parameters have been determined at 288.15, 298.15, 308.15 and 318.15 0K. (Pt),H2 ( l atm ) | HCl(m1) x% Dioxane (100-x)% H2O, Hg2Cl2(s) | Hg … (C-1) (Pt),H2 ( l atm ) | HCl(m1) BaCl2(m2)x% Dioxane (100-x)% H2O, Hg2Cl2(s) | Hg … (C-2)
{"title":"Standard Electrode Potential of Hg | Hg2Cl2(s), Cl- Electrode in Dioxane-Water Media at a Number of Temperature and the Related Thermodynamic Quantities","authors":"Mustafa B. Shamsuddin, Anil Kumar Chaohadia","doi":"10.32628/ijsrch23823","DOIUrl":"https://doi.org/10.32628/ijsrch23823","url":null,"abstract":"From e.m.f measurements of cells (C-1) and (C-2) it has been established that modified Davies equation is valid in dioxane-water media at least upto 30% dioxane by weight. E0m values of Hg | Hg2Cl2(s), Cl- electrode in dioxane-water media having 10, 20 and 30% dioxane by weight and the corresponding thermodynamic parameters have been determined at 288.15, 298.15, 308.15 and 318.15 0K.\u0000\u0000(Pt),H2 ( l atm ) | HCl(m1) x% Dioxane (100-x)% H2O, Hg2Cl2(s) | Hg … (C-1)\u0000\u0000(Pt),H2 ( l atm ) | HCl(m1) BaCl2(m2)x% Dioxane (100-x)% H2O, Hg2Cl2(s) | Hg … (C-2)","PeriodicalId":430334,"journal":{"name":"International Journal of Scientific Research in Chemistry","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125190053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：