As a result, the titratable acidity changes non-linearly with acid concentration. In this work, the oligomer distribution of lactic acid is characterized using GC, GC/MS, and HPLC to extend existing literature data, and titratable acidity is measured via titration with NaOH. A thermodynamic model...
The production of lactic acid was assayed in skim milk by titration with %1 NaOH. L-lactate isomer was investigated using UK Randox kit.Results: In this study, from 30 samples of different indigenous yoghurt and cheese 43 gram-positive, catalase-negative, oxidase negative lactobacilli were ...
中文名称:L-Lactic acid 英文名称:L-Lactic acid EINECS:201-196-2 中文同义名: L-乳酸 AR/500ML 27; 天然L-乳酸; L-乳酸水溶液; L-乳酸, 无水; L-(+)-乳酸, CA 85-90% 水溶液; (S)-2-羟基丙酸 肌乳酸; L-乳酸(标准品); (S)-(+)-乳酸; 英文同义名: 2-HYDROXYPROPIONIC ACID; L(+)...
英文名:L-(+)-Lactic acid 别名:(S)-2-Hydroxypropionic acid;Sarcolactic acid CAS号:79-33-4 分子式:C3H6O3;CH3CHOHCOOH 分子量:90.08 P95890-500ml L-乳酸 [79-33-4] 90% 500ml 148.00 促销价:96.20 P95891-100ml L-乳酸 [79-33-4] 90% 100ml 58.00 促销价:37.70 P95896-500ml L-乳酸 [79...
with sulphuric acid. The WSC was analysed by high-performance liquid chromatography (HPLC, LC-2000 plus; JASCO Corporation, Tokyo, Japan), using the method described by Cai [22]. The LBC was measured by the titration method described by Muck et al. [23]. The sample pH was reduced to ...
We performed the conversion of cellulose with different quantities in 100 ml water. A lactic acid yield of 55% could be obtained for a cellulose quantity of 2.5 g (Supplementary Table S2). The molar ratio of the glucose unit in cellulose to Pb(II) was 25 at this point providing a ...
Titration studies have shown the pKa value of physiological carbonic acid/bicarbonate solution with pCO2 of 40 mmHg at 37° C. to be 6.12. ##STR1## Therefore, it is apparent that carbonate itself is not an optimal buffer at physiological pH. Despite its less than optimal pKa value to ...
The pH and titratable acidity of samples were determined using a pH meter and through titration with 0.1 mol L− 1 NaOH, respectively (Kurt et al., 1996). A dynamic viscometer was utilized to determine the viscosity of each sample (Brookfield Model RVDI, USA). The color of fermented bev...
aqueous ometric solution systems, amount of base is srueqcuhiaresdBtao(OobHt)a2i1n7 and polymer catalysts in a NaOH solution18. However, a high lactate yield, followed by recovery of lactic acid a stoichi- using the same stoichimetric amount of acid for neutralization. In aqueous solutions...
the oligomers of lactic acid can been completely hydrolyzed to give monomeric lactic acid and the monomeric lactic acid is stable at temperatures of 8-33 掳C, thus the total acidity is equivalent to the titratable acidity and can be determined quantitatively by a direct potentiometric titration. ...