碳酸钾催化合成海藻糖脂肪酸酯

Synthesis and Applications of Trehaloselipids by Trehalose and Fatty Acid Ester Using Ethylene Glycol and Glycerol as Solvents

海藻糖脂肪酸酯是非离子生物表面活性剂,它具有可降解、无毒、无污染、在极端环境下稳定性强等优势。本文工艺采用食品添加剂乙二醇作为溶剂,由海藻糖和脂肪酸酯原料酯交换反应合成海藻糖脂肪酸酯,工艺简单,生产成本低,过程中采用食品级原料,易于食品工业化生产。该工艺合成海藻糖脂肪酸酯转化率在90%以上。

Trehalose lipids are glycolipid biosurfactants.In comparison to chemical surfactants,trehalose lipids have the advantages in lower toxicity,higher biodegradability,effectiveness at extremes of temperature,pH and salinity,environment-friendly,they have practical applications and prospects.However,the large-scale commercial success of trehalose lipids is currently scarce.It is mainly due to the high cost,low yield and complexity of component of production.The synthesis methods of trehalose lipids from trehalose and fatty acid ester using ethylene glycol and glycerol as solvents were introduced.The synthesis process had the advantages of simple process,low production cost and easy industrial production.The conversion rate of trehalose fatty acid ester synthesized by this process was more than 90%.