Pulsed electric field-assisted modification of pectin from sugar beet pulp

被引：30

作者：

Ma, Sen ^{[1
]}

Wang, Zhong-he ^{[2
]}

机构：

[1] Henan Univ Technol, Coll Grain Oil & Food Sci, Zhengzhou 450001, Peoples R China

[2] Hanshan Normal Univ, Dept Biol, Chaozhou 521041, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2013年 / 92卷 / 02期

关键词：

Pulsed electric field; Modification; Pectin; Arachidic anhydride; DEGRADATION; PEF; INACTIVATION; CAPACITY; PH;

D O I：

10.1016/j.carbpol.2012.11.014

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This current work is concerned with the modification of sugar beet pulp (SEP) pectin assisted by pulsed electric filed (PEF) without solvent Pectin-arachates with degree of esterification (DE) ranging from 49 to 84 were prepared in one-step modification. The results showed that the DE of pectin derivatives increased significantly with the PEF intensity from 18 to 30 kV cm((1) and total specific energy input from 124 to 345 J mL((1). Evidence of modification of pectin was provided by FT-IR, X-ray diffraction patterns and NMR spectra. Thermogravimetric investigation of modified pectin indicated a higher thermal stability than the untreated one. Results revealed that PEF technology is a promising method for industrial manufacture of pectin derivatives. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1700 / 1704

页数：5

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