Extraction, purification, structural characterization, and antioxidant activity of polysaccharides from Wheat Bran

被引：69
作者：
Shang, Xiao-Lan [1 ,2 ,3 ,4 ]
Liu, Chun-Yu [2 ,3 ,4 ]
Dong, Hai-Yan [2 ,3 ,4 ]
Peng, Hai-Hai [2 ,3 ,4 ]
Zhu, Zhen-Yuan [2 ,3 ,4 ]
机构：
[1] Langfang Normal Univ, Coll Life Sci, Langfang 065000, Hebei, Peoples R China
[2] Tianjin Univ Sci & Technol, State Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China
[3] Tianjin Univ Sci & Technol, Key Lab Food Nutr & Safety, Minist Educ, Tianjin 300457, Peoples R China
[4] Tianjin Univ Sci & Technol, Coll Food Sci & Engn, Tianjin 300457, Peoples R China
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2021年 / 1233卷
基金：
中国国家自然科学基金;
关键词：
Structural characterization; Antioxidant activity; Polysaccharide; Wheat Bran; CHEMICAL-STRUCTURE; ALPHA-GLUCOSIDASE; PHYSICOCHEMICAL CHARACTERIZATION; INHIBITORY-ACTIVITIES; OPTIMIZATION; HEALTH;
D O I：
10.1016/j.molstruc.2021.130096
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Wheat bran is a major by-product of wheat processing, but the structural characterization and antioxidant activity of the polysaccharide are not clear. The manuscript aimed to preliminarily investigate the physicochemical properties, glycoside linkages and antioxidant activity of wheat bran polysaccharide. In the present study, one novel polysaccharide (WBP) was extracted by hot water method, isolated and purified by Sephadex G-100 chromatography. The physiochemical properties and structure were primarily analyzed by HPLC chromatography, FT-IR spectrum, NMR spectra, SEM, monosaccharide composition and methylation. The results revealed that WBP (Mw = 2.99 x 10(5) Da) was mainly consisted of arabinose, xylose, mannose, glucose, and galactose in the ratio of 5.90: 6.25: 1.00: 2.06: 4.74. In addition, wheat bran polysaccharides exhibited remarkable antioxidant activities according to DPPH, ABTS, hydroxyl and superoxide radical scavenging tests. The manuscript provides theoretical basis for the utilization of wheat bran in functional food or medicine industries. (C) 2021 Elsevier B.V. All rights reserved.
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页数：10
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