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首页> 外文期刊>Journal of Biotechnology >Lipase-catalyzed synthesis of arylaliphatic esters of beta-D(+)-glucose,n-alkyl- and arylglucosides and characterization of their surfactantproperties
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Lipase-catalyzed synthesis of arylaliphatic esters of beta-D(+)-glucose,n-alkyl- and arylglucosides and characterization of their surfactantproperties

机译:脂肪酶催化的β-d(+) - 葡萄糖,N-烷基和芳基葡萄糖苷的合成,并表征其表面活性剂

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摘要

beta-D(+)-Glucose, n-alkyl-beta-D(S)-glucosides, salicin and 1-phenylglucoside were regioselectively acylated at the primary hydroxy group of the sugar moiety with a variety of non-activated arylaliphatic carboxylic acids using lipase B from Candida antarctica in a mainly solid phase in the presence of a small amount of t-butanol in yields up to 71%. The arylaliphatic glucose esters were highly water soluble (15 to > 100 g l(-1)) and showed surface activity. Critical micellar concentrations between 2 and 95 mM and minimal surface tensions around 35-45 mN m(-1) were determined. The hydrophilic-lypophilic balance values of arylaliphatic esters from beta-D(+)-glucose indicate a use in oil-in-water emulsions or detergents, whereas the n-alkyl- and arylglycosides can be employed as wetting agents or water-in-oil emulsifiers.
机译:β-D(+) - 葡萄糖,N-烷基-β-乙醇苷,Salicin和1-苯基葡萄糖苷在糖部分的初级羟基中具有各种未激活的芳基血管羧酸的区域选择性地酰化。使用 来自Candida抗野生的脂肪酶B主要是固相,在存在少量T-丁醇的产率高达71%。 芳族血糖酯是高度水溶性的(15至> 100g L(-1))并显示出表面活性。 测定临界胶束浓度在2至95mm之间,并且最小的表面张力约为35-45mN mn(-1)。 来自β-D(+) - 葡萄糖的芳族脂族酯的亲水性 - 糖磷酸酯平衡值表明在水包油乳液或洗涤剂中使用,而N-烷基 - 和芳基甘油酯可以用作润湿剂或水 - 油乳化剂。

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