Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 2150-55-2, is researched, SMILESS is O=C(C1N=C(N)SC1)O, Molecular C4H6N2O2SJournal, Shipin Kexue (Beijing, China) called Effect of dissolved oxygen on production of L-cysteine synthetase by Pseudomonas sp. TS1138, Author is Huai, Lihua; Chen, Ning, the main research direction is dissolved oxygen cysteine synthetase Pseudomonas fermentation.Name: 2-Amino-4,5-dihydrothiazole-4-carboxylic acid.
Pseudomonas sp. TS1138 has potential to produce L-cysteine synthetase through asym. hydrolysis of DL-2-amino-Δ2-thiazoline-4-carboxylic acid (DL-ATC). The effect of dissolved oxygen level on the production of L-cysteine synthetase was investigated in shake flasks or 7 L bioreactor. The results indicated that the cell growth and the production of L-cysteine synthetase were inhibited at low dissolved oxygen level. Although cell growth was improved at the high dissolved oxygen level, the inhibition against production of L-cysteine synthetase was still observed in shake flasks. In 7 L bioreactor, dissolved oxygen concentration controlled at more than 30% was helpful for improving the cell growth and the production of L-cysteine synthetase through regulating agitation rate and air flow rate during the middle and late stage.
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