立体选择性脂肪酶的筛选及其在薄荷醇拆分中的应用

Chinese Journal of Bioprocess Engineering(2013)

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Abstract
采用双平板透明圈方法,筛选得到1株能够选择性水解L-薄荷醇丙酸酯的微生物。通过16sDNA测序,鉴定为产碱假单胞菌Pseudomonas alcaligenes。该菌所产脂肪酶可水解4对薄荷醇丙酸酯,在35℃时绝对转化率达到50%时,表现出较高的对映体过量值(e.e.p>99%)与非对映体过量值(d.e.p>90%)。这一结果表明,产碱假单胞菌脂肪酶是具有工业应用前景的生物催化剂。
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Key words
screening,lipase,L-menthol,stereoselectivity,Pseudomonas alcaligenes
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