Expression of linoleate isomerase gene from lactobacillus reuteri pyr8 in escherichia coli and assay of its bioactivity 8亚油酸异构酶基因在大肠杆菌中的表达与活性检测
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The technical difficulties in low - alcohol liquor production mainly cover the following aspects : the bleeding of ethyl palmitate , ethyl oleate and ethyl linoleate etc . after alcohol - degrading might produce the lost of gloss , turbidity and precipitate ; the suspended substances produced in distillation and packing , the production water , and the metal ions contained in production containers are the main reasons for the precipitate in liquor ; besides , the hydrolization reaction and esterification reaction of liquor body during shelf period would also produce the lost of gloss , turbidity and precipitate 低度白酒生产过程的技术难点主要是白酒降度产生失光、浑浊、沉淀，其主要原因是由于降度后棕榈酸乙酯、油酸乙酯和亚油酸乙酯等析出；蒸馏、包装等过程带入的悬浮物，生产用水、生产容器所含金属离子等为低度白酒产生沉淀的主要原因；还有低度白酒酒体在货架期的水解、酯化反应也会引起低度白酒产生失光、浑浊和沉淀。
