单酰甘油脂肪酶
甘油
化学
溶剂
产量(工程)
甘油酯
大豆油
色谱法
单甘酯
熔点
有机化学
脂肪酸
材料科学
生物化学
内大麻素系统
受体
冶金
作者
Nanjing Zhong,Lin Li,Xuebing Xu,Ling‐Zhi Cheong,Bing Li,Song‐Qing Hu,Xihong Zhao
标识
DOI:10.1007/s11746-009-1402-7
摘要
Abstract The present study was aimed at selecting an efficient binary solvent mixture for monoacylglycerol (MAG) synthesis by enzymatic glycerolysis of soybean oil. Solvent combinations of tert ‐butanol/isopropanol (v/v) at different ratios were studied. Of the investigated cases, tert ‐butanol:isopropanol at ratio 80:20 was the most suitable organic medium. The optimum conditions for MAG synthesis under the selected mixture were: water 10 wt% based on glycerol, Lipozyme TL IM 15 wt% based on oil and glycerol, weight ratio of solvent to oil 4:1, and molar ratio of glycerol to oil 3.5:1. Under these conditions with a 4‐h reaction, the yield of MAG was 72.0% where the triacylglycerol (TAG) content was reduced to only 1.0% (based on acylglycerols). Fatty acid ester (FAE) formation from the solvents was very low in the final product (1.3% based on reaction mixture). The selected binary solvent mixture has good physical properties with low melting point (−26.5 °C), which can avoid the risk of crystallization in practical operations.
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