Structural and rheological properties of polysaccharides from mango (Mangifera indica L.) pulp

被引：84
|
作者：
Iagher, F [1 ]
Reicher, F [1 ]
Ganter, JLMS [1 ]
机构：
[1] Univ Fed Parana, Dept Biochem, BR-81531990 Curitiba, Parana, Brazil
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2002年 / 31卷 / 1-3期
关键词：
Mangifera indica; pectin; mango pulp; polysaccharide; rheology;
D O I：
10.1016/S0141-8130(02)00044-2
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The structure and rheological properties of water-soluble polysaccharides from industrialized mango pulp were investigated. Soluble fraction (SF) 2 was heterogeneous on high performance size exclusion chromatography, giving two peaks as determined by multi-angle laser light scattering and refractive index detectors. The presence of starch in SF2 was demonstrated by a positive iodine reaction and by (13)C nuclear magnetic resonance (NMR) spectroscopy. The presence of pectic polysaccharides was shown by a calorimetric method, (13)C-NMR spectroscopy and carboxyl reduction. The main pectic polysaccharide was polygalacturonic acid; type I rhamnogalacturonan was also detected. Analysis of the rheological properties of SF2 showed a pseudoplastic behavior up to 3 gl(-1). 'Creep and recovery' tests and analysis performed under a dynamic state revealed a weak gel character for solutions at concentrations of 15, 20 and 30 g l(-1). (C) 2002 Elsevier Science B.V. All rights reserved.
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收藏
页码：9 / 17
页数：9
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