FATTY ACID COMPOSITION OF LIPID EXTRACTS OF A THERMOPHILIC BACILLUS SPECIES
FATTY ACID COMPOSITION OF LIPID EXTRACTS OF A THERMOPHILIC BACILLUS SPECIES
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DOI：
10.1128/jb.101.1.145-151.1970
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发表时间：
1970-01-01
影响因子：
3.2
通讯作者：
DARON, HH
中科院分区：
文献类型：
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作者：
DARON, HH
嗜热芽孢杆菌产生的脂肪酸中，碳原子数为16或17的脂肪酸占80%以上。在大多数条件下，支链脂肪酸比正常脂肪酸更丰富。不饱和脂肪酸的比例与生长温度成反比，从未超过14%。当乙酸盐用作碳源时，具有15或17个碳原子的脂肪酸的百分比是当葡萄糖用作碳源时发现的百分比的约两倍。将生长温度从40 ℃增加到60 ℃导致正链十六烷酸与支链十六烷酸的比率增加三到四倍。发现两种正常的十六碳烯酸，它们的相对丰度受生长温度的影响。
Fatty acids having 16 or 17 carbon atoms accounted for over 80% of the fatty acids produced by a thermophilicBacillusspecies. Under most conditions, branched-chain fatty acids were more abundant than normal fatty acids. The proportion of unsaturated fatty acids varied inversely with the growth temperature and was never greater than 14%. When acetate was used as a carbon source, the percentage of fatty acids having 15 or 17 carbon atoms was about twice that found when glucose was used as a carbon source. Increasing the growth temperature from 40 to 60 C resulted in a three-to fourfold increase in the ratio of the normal to branched-chain hexadecanoic acids. Two normal hexadecenoic acids were found and their relative abundance was influenced by the growth temperature.