Physicochemical properties and functional bioactivities of different bonding state polysaccharides extracted from tomato fruit

被引：68
作者：
Li, Qianqian [1 ]
Li, Jian [2 ]
Li, He [2 ]
Xu, Ranran [1 ]
Yuan, Yang [1 ]
Cao, Jiankang [1 ]
机构：
[1] China Agr Univ, Coll Food Sci & Nutr Engn, 17 Qinghuadonglu Rd, Beijing 100083, Peoples R China
[2] Beijing Technol & Business Univ, Beijing Adv Innovat Ctr Food Nutr & Human Hlth, 33 Fucheng Rd, Beijing 100048, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2019年 / 219卷
基金：
中国国家自然科学基金;
关键词：
Tomato polysaccharide; Sugar composition; Rheological property; Bonding state; Antioxidant activity; Hypolipidemic activity; STRUCTURAL-CHARACTERIZATION; RHEOLOGICAL CHARACTERIZATION; BIOLOGICAL-PROPERTIES; PECTIN; ANTIOXIDANT; FRACTIONS; PEEL; BROCCOLI;
D O I：
10.1016/j.carbpol.2019.05.020
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Water-soluble fraction (WSF), CDTA-soluble fraction (CSF), sodium carbonate-soluble fraction (SSF), loosely-bonding KOH-soluble fractions (LKF) and tightly-bonding KOH-soluble fractions (TKF) were sequentially extracted from tomato cell wall polysaccharides. Physicochemical properties and functional bioactivities of these different bonding state tomato fruit polysaccharides (DBTP) were investigated. WSF, CSF and SSF were identified as pectic polysaccharides, while LKF and TKF were identified as hemicellulose. WSF, possessing plenty of galacturonic acids, was considered as an aggregative of linear homogalacturonan with extremely high molecular weight. CSF and SSF, rich in neutral sugars side chains, contained abundant rhamnogalacturonan regions. These polysaccharides exhibited distinct surface morphology and special FTIR spectrums. Thermal analysis manifested that LKF and TKF exhibited higher thermal stability. WSF and SSF showed higher apparent viscosity and elasticity. Assays for functional bioactivities suggested that CSF and SSF displayed stronger antioxidant activities, while CSF, SSF and TKF exhibited higher hypolipidemic activities.
引用
收藏
页码：181 / 190
页数：10
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