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KMID : 1134820090380111559
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Journal of the Korean Society of Food Science and Nutrition
2009 Volume.38 No. 11 p.1559 ~ p.1563
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Production of Diacylglycerol-Oil from Lipase-Catalyzed Reaction Using Soybean Oil and Glyceryl Monooleate
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Jeon Mi-Sun
Lee Cho-Rong
Lee Ki-Teak
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Abstract
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Scaled-up production of oil containing diacylglycerol (DAG), so called diacylglycerol-oil, was produced by lipase-catalyzed reaction. Mixture of soybean oil and glyceryl monooleate with 1:2 molar ratio was esterified with Lipozyme RMIM in a batch-type reactor at 55℃ and 300 rpm during 6 hr. After short-path distillation for removal of monoacylglycerol and free fatty acid as reaction by-products, diacylglycerol-oil mainly consisted of DAG (29 area%) and TAG (71 area%). The major compositional fatty acids in diacylglycerol-oil were oleic (44.36 wt%), and linoleic acids (37.36 wt%). Acid value and iodine value of diacylglycerol-oil were 0.13 and 112.6, respectively. Solid fat content (SFC) of diacylglycerol-oil was observed after differential scanning calorimetry (DSC) analysis in which three melting peaks at -25.0, 0.1, and 11.2oC were shown.
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KEYWORD
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diacylglycerol, soybean oil, glyceryl monooleate, Lipozyme RMIM
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