共 33 条
Production of Methyl Ester from Oedogonium sp Oil Using Immobilized Isolated Novel Bacillus sp Lipase
被引:16
作者:
Sivaramakrishnan, Ramachandran
[1
]
Muthukumar, Karuppan
[1
]
机构:
[1] Anna Univ, Dept Chem Engn, Madras 600025, Tamil Nadu, India
关键词:
BIODIESEL PRODUCTION;
ORGANIC-SOLVENT;
ULTRASOUND;
TRANSESTERIFICATION;
BIOCATALYSIS;
MEDIA;
D O I:
10.1021/ef300769s
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
In this study, the production of methyl ester from Oedogonium sp. oil was studied using an isolated thermo-, solvent-, and sono-tolerant Bacillus sp. lipase immobilized on celite. The application of ultrasound during the reaction reduced the reaction time significantly. The effect of sonication time, enzyme dosage, water content, methanol/oil molar ratio, and solvent addition on the performance of transesterification was studied. The reaction time required in the presence and absence of ultrasound was 2 and 40 h, respectively. Under optimum conditions, 75 and 82% fatty acid methyl ester (FAME) yields were obtained for normal and ultrasound-assisted transesterification, respectively. The reusability of the immobilized enzyme after five cycles did not show much loss in enzyme activity, and this indicates that the isolated enzyme was not affected as a result of the application of ultrasound.
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页码:6387 / 6392
页数:6
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