Synthesis and Properties of Octenylsuccinate Konjac Glucomannan Ester by Microwave-Assisted Semi-Drying Method

doi:10.7506/spkx1002-6630-201314033

Abstract

Abstract:

Octenylsuccinate konjac glucomannan ester (OKGE) was prepared from konjac glucomannan (KGM) and
octenyl succinic anhydride (OSA) by microwave-assisted semi-drying method. The synthesis process of OKGE was
explored through single-factor and quadratic rotation composite experimental designs, and the synthesized product
was characterized. The results revealed that the optimal process conditions to prepare OKGE were pH 2.5, reaction
temperature of 76 ℃, microwave treatment time of 10 min, and ethanol concentration of 70%. Under the optimal
process conditions, the average substitution degree of OKGE was 0.015, and its emulsion capacity and emulsion
stability were good.

Key words: microwave, octenyl succinic anhydride, octenylsuccinate konjac glucomannan ester, emulsion capacity

LIANG Ye-xing，XIONG Jia-yan，WANG Yong-hong，ZHONG Geng. Synthesis and Properties of Octenylsuccinate Konjac Glucomannan Ester by Microwave-Assisted Semi-Drying Method[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201314033.

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Synthesis and Properties of Octenylsuccinate Konjac Glucomannan Ester by Microwave-Assisted Semi-Drying Method

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