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The kinetics of conversion of sulfur-containing amino acids L-cystine and L-cysteine to taurin by the enzyme system of cattle liver cells was studied, and a mathematical model was developed. It was shown that L-cystine and L-cysteine conversion obeyed the Michaelis-Menten equations of serial-sequential conversions with regard to inhibition by the final product and inactivation. The yield of taurin under the optimized conditions of L-cystine and L-cysteine conversion (temperature, 40 degrees C; pH 1.5 and 3.0, respectively; and addition of enzyme preparations in five equal portions at 2-h intervals) was in the range 80-85% of the substrate weight. 相似文献
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Soboleva A. V. Krasnoshtanova A. A. Krylov I. A. 《Applied Biochemistry and Microbiology》2004,40(3):236-240
The kinetics of the conversion of the sulfur-containing amino acids L-cystine and L-cysteine to taurin by the enzyme system of cattle liver cells was studied and a mathematical model was developed. It was shown that the conversions of L-cystine and L-cysteine obeyed the Michaelis–Menten equations of serial–sequential conversions with regard to inhibition by the final product and inactivation. The yield of taurin under the optimized conditions of L-cystine and L-cysteine conversion (temperature, 40°C; pH 1.5 and 3.0, respectively; and the addition of enzyme preparations in five equal portions at 2-h intervals) was in the range of 80–85% of the substrate weight. 相似文献
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