Effect of alkalis on deacetylation of konjac glucomannan in mechano-chemical treatment--颗粒学报PARTICUOLOGY

Pan, Z., Meng, J., & Wang, Y. (2011). Effect of alkalis on deacetylation of konjac glucomannan in mechano-chemical treatment. Particuology, 9(3), 265–269. https://doi.org/10.1016/j.partic.2010.11.003

Effect of alkalis on deacetylation of konjac glucomannan in mechano-chemical treatment

Zhidong Pan ^{a b}, Junjie Meng ^a, Yanmin Wang ^{a b *}

a School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
b Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology, Ministry of Education, South China University of Technology, Guangzhou 510640, China

10.1016/j.partic.2010.11.003

Volume 9, Issue 3, June 2011, Pages 265-269

Received 30 August 2010, Revised 27 October 2010, Accepted 1 November 2010, Available online 2 April 2011.

E-mail: wangym@scut.edu.cn

Highlights

Abstract

This paper presents experimental results on the effect of alkalis such as NaOH, KOH and Ca(OH)₂ on deacetylation of a konjac glucomannan (KGM) powder under mechano-chemical (MC) treatment. The results show that the alkalinity of modifiers is a dominant factor for deacetylation of KGM. In addition, characteristics, such as swelling property, viscous stability and thermal behavior of the deacetylated KGM are analyzed.

Graphical abstract

Keywords

Deacetylation; Alkali; Mechano-chemistry; Konjac glucomannan

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