Conversion of methionine to methional by Lactococcus lactis
Conversion of methionine to methional by Lactococcus lactis
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DOI：
10.1016/s0378-1097(01)00402-5
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发表时间：
2001-10-16
影响因子：
2.1
通讯作者：
Pelaez, C
中科院分区：
文献类型：
--
作者：
Amárita, F;Fernández-Esplá, D;Pelaez, C
筛选了以4-甲硫基-2-酮丁酸为原料生产蛋氨酸的乳酸菌。只有乳酸乳球菌IFPL 730产生大量的蛋氨酸。结果表明，该化合物的产生仅是酶促反应。本文首次描述了L.乳酸可以在由氨基转移酶和α-酮酸脱羧酶活性介导的过程中将甲硫氨酸酶促转化为甲硫醛。活性似乎是应变依赖性的。(C)2001年，欧洲微生物学会联合会。由Elsevier Science B. V.出版，版权所有。
Lactic acid bacteria were screened for methional production from 4-methylthio-2-ketobutanoate. Only Lactococcus lactis IFPL730 produced high amounts of methional. It was demonstrated that production of this compound was an exclusively enzymatic reaction. The present work describes for the first time that L. lactis can convert enzymatically methionine to methional in a process mediated by aminotransferase and alpha -ketoacid decarboxylase activities. The activity seems to be strain dependent. (C) 2001 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.