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Influence of Extraction Conditions on Relative Molecular Weight Distribution of Arabinoxylan from Wheat Bran

YUAN Jian, FAN Zhe, WANG Yan, HE Rong, JU Xing-rong   

  1. College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210046, China
  • Online:2014-09-15 Published:2014-09-12

Abstract:

The influence of extraction time, pH and extraction temperature on the yield and relative molecular weight
distribution of arabinoxylan from wheat bran was investigated by chemical analysis and high performance gel permeation
chromatography. The results showed that the yield of arabinoxylan was significantly enhanced with increasing extraction
time, pH and extraction temperature. The content of low relative molecular weight arabinoxylan was increased when the
extraction time was extended to 5 h, and a variety of arabinoxylans with high relative molecular weights could be obtained
by increasing pH and extraction temperature.

Key words: wheat bran, araboxylan, extraction conditions, relative molecular weight distribution

CLC Number: