sn-1,3位专一性脂肪酶在食品中的应用

脂肪酶在食品中的应用已有几十年的历史,由于油脂中三酰甘油的1,3位和2位的脂肪酸对油脂的理化、营养和生理特性方面有较大的差异,因此专一性水解三酰甘油1,3位的脂肪酶成为研究的热点。由于sn-1,3位专一性脂肪酶选择性地水解三酰甘油的1位和3位,因此广泛的用于三酰甘油的修饰。国内外大量的研究表明,sn-1,3位专一性脂肪酶适用于生产结构脂质、母乳脂肪替代品、类可可脂和甘油二酯等,获得价格低廉而活性高的酶、高效的酶固定化技术和研发酶反应器是今后研究的重点。

Application of sn-1,3 Specific Lipase in Food

Lipases have been used for decades.There are lots of researches on the specificity of lipase due to the great differences of sn-1,3 position and sn-2 position of triglyceride on physiological,nutritional and biological characteristics.As sn-1,3 specific lipase could hydrolyze sn-1 and sn-3 specifically,it has wide applications in modification of triglycerides.Lots of researches,both at home and abroad,confirmed that this lipase is quite effective in producing structured lipid,human milk fat substitute,cocoa butter equivalent,diglyceride and so on.The critical research on the future will be getting low-cost-lipase with high activity,enzyme immobilization techniques and enzyme reactors.