Comparison of physicochemical properties of starches from seed and rhizome of lotus

被引：122

作者：

Man, Jianmin ^{[1
,2
]}

Cai, Jinwen ^{[1
,2
]}

Cai, Canhui ^{[1
,2
]}

Xu, Bin ^{[3
]}

Huai, Huyin ^{[1
]}

Wei, Cunxu ^{[1
,2
]}

机构：

[1] Yangzhou Univ, Coll Biosci & Biotechnol, Yangzhou 225009, Peoples R China

[2] Yangzhou Univ, Key Labs Crop Genet & Physiol Jiangsu Prov & Plan, Minist Educ, Yangzhou 225009, Peoples R China

[3] Yangzhou Univ, Testing Ctr, Yangzhou 225009, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2012年 / 88卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Lotus; Seed; Rhizome; Starch; Physicochemical property; ANTISENSE RNA INHIBITION; ALPHA-AMYLASE DEGRADATION; HULL-LESS BARLEY; C-TYPE STARCH; NELUMBO-NUCIFERA; BRANCHING ENZYME; CRYSTALLINE PROPERTIES; ACID-HYDROLYSIS; AMYLOSE; GRANULES;

D O I：

10.1016/j.carbpol.2012.01.016

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Lotus seed and rhizome starches have been used as functional foods in east Asia for thousands of years. In this paper, starches were isolated from lotus seed and rhizome, and their physicochemical properties were compared. Seed starches were small oval granules, rhizome starches had small oval granules and large elongated granules. Seed starches showed significantly higher amylose content and gelatinization temperature and lower swelling power than rhizome starches. Seed starches exhibited an A-type X-ray diffraction pattern with higher crystalline degree, while rhizome starches showed a C-type pattern which changed from C- to A-type with gradually increasing crystalline degree during acid hydrolysis. The degree of order in starch external region was higher in rhizome than in seed. The external region structure of rhizome starches became more ordered during acid hydrolysis. Rhizome starches had higher rate of acid hydrolysis and lower rate of porcine pancreatic alpha-amylase hydrolysis than seed starches. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：676 / 683

页数：8

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