Antioxidant Activities of Polysaccharide Fractions Purified from Corn Bran

DOI

10.2991/mseee-17.2017.16How to use a DOI?

Keywords

Corn bran; Polysaccharide; Composition; Antioxidant activities.

Abstract

Extractable polysaccharides (CBP) from abundant low-priced by-product of corn bran and three polysaccharide sub-fractions (CBP1, CBP2 and CBP3) were isolated and purified by ion-exchange and DEAE cellulose chromatography. Structural characterization, antioxidant and bile acid binding activities of the polysaccharides were investigated. The average molecular weights (Mw) of CBP1, CBP2 and CBP3 were 342kDa, 294kDa and 186kDa, respectively. Our results showed that CBPs were composed of xylose, glucose, galactose, arabinose and rhamnose, and had typical IR spectra characteristics of polysaccharides. The fraction of CBP3 with the highest protein content (1.32%), galactose content (9.93%), and the lowest molecular weight (186kDa) and carbohydrate content (91.6%) had the highest antioxidant activities. These findings suggest that isolated polysaccharides from corn bran are potential natural antioxidant that can be used as functional food ingredients.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Linghui Zhu
AU  - Qing Mo
AU  - Jianjun Ma
AU  - Jingjing Xu
AU  - Miaoli Fang
PY  - 2017/08
DA  - 2017/08
TI  - Antioxidant Activities of Polysaccharide Fractions Purified from Corn Bran
BT  - Proceedings of the 2017 International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2017)
PB  - Atlantis Press
SP  - 81
EP  - 84
SN  - 2352-5401
UR  - https://doi.org/10.2991/mseee-17.2017.16
DO  - 10.2991/mseee-17.2017.16
ID  - Zhu2017/08
ER  -