| 초록 |
L-cysteine has been widely used in medicines, cosmetics, and food additives. It has mainly been produced hydrolysis of human or animal hairs. However, these methods result in low yields and give rise to unpleasant odors and problems of waste treatment. In addition, products extracted from hair do not qualify for medical use because of sanitary problems. Instead of hydrolysis of hairs, for producing L-cysteine has also been developed. The bacteria, especially, Pseudomonas, have potent activities of asymmetrical hydrolysis of DL-2-aminothiazolin-4-carbonic acid(DL-ATC) to form L-cysteine. The total cost for L-cysteine synthesis using DL-ATC is favorable for the large-scale production in industry. In this study, we show the chemical synthetic pathway by the identifying the cysteine and cystine. |
