Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, Chaire AFERE, 51686, Reims, France; Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, 51687, Reims Cedex, France.
Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, Chaire AFERE, 51686, Reims, France.
Carbohydr Res. 2020 Sep;495:108090. doi: 10.1016/j.carres.2020.108090. Epub 2020 Jul 18.
Lipase-catalyzed synthesis of xylo-oligosaccharides esters from pure xylobiose, xylotriose and xylotetraose in the presence of vinyl laurate was investigated. The influence of different experimental parameters such as the loading of lipase, the reaction duration or the use of a co-solvent was studied and the reaction conditions were optimized with xylobiose. Under the best conditions, a regioselective esterification occurred to yield a monoester with the acyl chain at the OH-4 of the xylose unit at the non-reducing end. Surface-active properties of these pure xylo-oligosaccharides fatty esters have been evaluated. They display interesting surfactant activities that differ according to the degree of polymerization (DP) of the glycone moiety.
在 presence of vinyl laurate 的条件下，研究了脂肪酶催化纯木二糖、木三糖和木四糖合成低聚木糖酯。考察了不同实验参数的影响，如脂肪酶的负载量、反应时间或共溶剂的使用，并对木二糖进行了反应条件优化。在最佳条件下，发生了区域选择性酯化反应，生成了非还原端木糖单元的 OH-4 位带有酰基链的单酯。对这些纯低聚木糖脂肪酸酯的表面活性性质进行了评估。它们显示出根据糖苷部分的聚合度（DP）而不同的有趣的表面活性剂活性。
