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盐湖相低熟油脂肪酸的组成与分布特征 被引量:11
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作者 张松林 崔明中 +2 位作者 李振西 王有孝 范璞 《沉积学报》 CAS CSCD 北大核心 1999年第1期130-135,共6页
对泌阳凹陷碱性盐湖相、舞阳凹陷盐湖相、襄城凹陷膏盐湖相、南阳凹陷淡水湖相低熟油脂肪酸组成和分布特征进行了分析与研究。结果表明这些不同盐湖相的低熟原油的脂肪酸为丰度不同的饱和正构酸、不饱和正构酸、少量异构酸、类异戊二烯... 对泌阳凹陷碱性盐湖相、舞阳凹陷盐湖相、襄城凹陷膏盐湖相、南阳凹陷淡水湖相低熟油脂肪酸组成和分布特征进行了分析与研究。结果表明这些不同盐湖相的低熟原油的脂肪酸为丰度不同的饱和正构酸、不饱和正构酸、少量异构酸、类异戊二烯酸及脂肪酸乙酯系列化合物。脂肪酸的组成和分布反映了原始有机质的来源。 展开更多
关键词 低熟油 脂肪酸 脂肪酸乙脂 盐湖相 分布特征
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Enzymatic reaction of ethanol and oleic acid by lipase and lignin peroxidase in rhamnolipid(RL) reversed micelles
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作者 包珊 袁兴中 +7 位作者 彭馨 曾光明 武海鹏 王侯 刘欢 马玉洁 崔凯龙 吴秀莲 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第8期2936-2944,共9页
An environment friendly bio-surfactant of rhamnolipid(RL) was used as a solvent. The enzymatic reaction of oleic acid catalyzed by lipase and lignin peroxidase(lip) was evaluated. The optimum conditions of enzymatic r... An environment friendly bio-surfactant of rhamnolipid(RL) was used as a solvent. The enzymatic reaction of oleic acid catalyzed by lipase and lignin peroxidase(lip) was evaluated. The optimum conditions of enzymatic reaction catalyzed by lipase(lip) were water to amphiphile molar ratio of 30(20), RL of 60(60) critical micelle concentration(CMC), pH of 7.0(3.0) and temperature of 40(30) °C, respectively. The change of enzyme conformation indicates that, for catalytic of lipase, water content is the most important factor of the enzymatic reaction of oleic acid, and p H for lip. With individual optimum conditions, the enzymatic efficiency of oleic acid catalyzed by lipase is higher than that by lip. In the presence of ethanol, the enzymatic reaction of oleic acid catalyzed by lipase suits Ping-Pong Bi-Bi mechanism. As an alternative to chemical reversed micelles, the RL reversed micelles are promising methods to enzymatic reaction of oleic acid. 展开更多
关键词 LIPASE LIP enzymatic reaction RHAMNOLIPID reversed micelles oleic acid
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