@article{(Open Science Index):https://publications.waset.org/pdf/14289, title = {Lipase Catalyzed Synthesis of Aromatic Esters of Sugar Alcohols}, author = {R. Croitoru and L. A. M. van den Broek and A. E. Frissen and C. M. Davidescu and F. Peter and C. G. Boeriu}, country = {}, institution = {}, abstract = {Commercially available lipases (Candida antarctica lipase B, Novozyme 435, Thermomyces lanuginosus lipase, and Lipozyme TL IM), as well as sol-gel immobilized lipases, have been screened for their ability to acylate regioselectively xylitol, sorbitol, and mannitol with a phenolic ester in a binary mixture of t-butanol and dimethylsulfoxide. HPLC and MALDI-TOF MS analysis revealed the exclusive formation of monoesters for all studied sugar alcohols. The lipases immobilized by the sol-gel entrapment method proved to be efficient catalysts, leading to high conversions (up to 60%) in the investigated acylation reactions. From a sequence of silane precursors with different nonhydrolyzable groups in their structure, the presence of octyl and i-butyl group was most beneficial for the catalytic activity of sol-gel entrapped lipases in the studied process. }, journal = {International Journal of Chemical and Molecular Engineering}, volume = {5}, number = {4}, year = {2011}, pages = {346 - 351}, ee = {https://publications.waset.org/pdf/14289}, url = {https://publications.waset.org/vol/52}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 52, 2011}, }