PRODUCTS OF GLUCOSE METABOLISM BY HOMOFERMENTATIVE STREPTOCOCCI UNDER ANAEROBIC CONDITIONS
PRODUCTS OF GLUCOSE METABOLISM BY HOMOFERMENTATIVE STREPTOCOCCI UNDER ANAEROBIC CONDITIONS
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厌氧条件下同型发酵链球菌的葡萄糖代谢产物
DOI：
10.1128/jb.75.4.453-459.1958
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发表时间：
1958
影响因子：
3.2
通讯作者：
E. M. Foster
中科院分区：
文献类型：
--
作者：
T. Platt;E. M. Foster
众所周知，产乳酸链球菌可以产生除乳酸以外的产物。据报道，少量甲酸、乙酸、丙酸和丁酸、乙醇、二氧化碳、2,3-丁二醇、乙酰和双乙酰是这些生物的代谢产物（Hammer, 1920; Foster, 1921; Langwill, 1924; Long and Hammer, 1936）。然而，在葡萄糖发酵的定量研究中，只有乙醇、乳酸、乙酸和甲酸被考虑在内（Friedemann, 1938, 1939； Gunsalus和Niven, 1942; White et al., 1955）。在这种实验中，碳回收率通常为85%至95%，并发现了等量的一碳和二碳产品。然而，氧化还原（O/R）指数与理论值相差很大，这表明所报道的产物，特别是乳酸以外的产物，并不是唯一形成的产物。人们认为，完整的发酵平衡，特别是关于O/R指数，将澄清和扩展对这些细菌代谢过程的认识。本文对几种同质乳酸链球菌厌氧发酵葡萄糖的产物进行了定量研究。
It is well recognized that products other than lactic acid may be produced by homofermentative lactic acid-producing streptococci. Small quantities of formic, acetic, propionic, and butyric acids, ethanol, carbon dioxide, 2,3-butanediol, acetoin, and biacetyl have been reported as metabolic products of these organisms (Hammer, 1920; Foster, 1921; Langwill, 1924; Long and Hammer, 1936). Of these, however, only ethanol and lactic, acetic, and formic acids have been taken into account in quantitative studies of glucose fermentation (Friedemann, 1938, 1939; Gunsalus and Niven, 1942; White et al., 1955). Carbon recoveries in such experiments were usually 85 to 95 per cent, and equimolar quantities of oneand two-carbon products were found. Oxidation-reduction (O/R) indices, however, varied considerably from the theoretical 1.0, indicating that the products reported, particularly those other than lactate, were not the only ones formed. It was believed that complete fermentation balances, especially in regard to O/R indices, would clarify and extend the knowledge of the metabolic processes of these bacteria. This paper reports a quantitative study of the products formed by several homofermentative lactic acid streptococci in their anaerobic fermentation of glucose.