Methyl Esterification of Waste Fatty Acids with Immobilized Candida antarctica Lipase
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概要
- 論文の詳細を見る
Enzymatic production of a docosahexaenoic acid-rich oil from tuna oil creates considerable amounts of free fatty acids (FFA), which are treated as an industrial waste but the handling is difficult because of their solid state. We thus attempted to convert the waste FFA (Tuna-FFA) to their methyl esters through an organic solvent-free enzymatic process. When waste Tuna-FFA were esterified at 30°C with two molar equivalents of methanol (MeOH) using 1.0 wt% immobilized Candida antarctica lipase, the esterification degree reached 95% after 24 h. The reaction was recycled by transferring the enzyme into a fresh substrate mixture every 24 h, but the esterification degree maintained 95% during 45 cycles. To further increase the esterification degree, the esterification was repeated with 5 molar equivalents of MeOH against the remaining FFA after dehydration of the mixture obtained by the single reaction. The repeated reaction increased the esterification degree to 97-98%.
- 日本油化学会の論文
- 2002-10-01
著者
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Tominaga Y
Dep. Of Applied Biochemistry And Food Sci. Saga Univ.
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Yanagita Teruyoshi
Lab. Of Nutrition Biochemistry Dep. Of Applied Biochemistry And Food Sci. Saga Univ.
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Baba Takashi
Central Research Institute Maruha Corporation
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Shimada Y
Department Of Biochemistry Osaka Municipal Technical Research Institute
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Shimada Y
Department Of Physics Chuo University:tecmo
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Shimada Yuji
Osaka Municipal Technical Research Institute
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TERAI Tadamasa
Department of Applied Chemistry, Osaka Institute of Technology
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Terai Tadamasa
Dep. Of Applied Chemistry Osaka Inst. Of Technol.
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SUGIHARA Akio
Faculty of Engineering, Tokushima Bunri University
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SUGIHARA Akio
Osaka Municipal Technical Research Institute
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WATANABE Yomi
Osaka Municipal Technical Research Institute
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OHYAGI Noboru
Department of Applied Chemistry, Osaka Institute of Technology
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MORIYAMA Shigeru
Central Research Institute, Maruha Corporation
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TOMINAGA Yoshio
Sonoda Women's University
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Yanagita Teruyoshi
Dep. Of Applied Biochemistry And Food Sci. Saga Univ.
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Tominaga Yoshio
The Organ Transplant Center Nagoya Second Red Cross Hospital
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Ohyagi Noboru
Department Of Applied Chemistry Osaka Institute Of Technology
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Sugihara A
Faculty Of Engineering Tokushima Bunri University
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Terai Tadamasa
Department Of Applied Chemistry Osaka Institute Of Technology
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Terai T
Dep. Of Applied Chemistry Osaka Inst. Of Technol.
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Moriyama Shigeru
Central Research Institute Maruha Corporation
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Baba Takashi
Central Res. Inst. Maruha Group Inc.
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