Physicochemical characterization of irradiated arrowroot starch

被引：32
作者：
Barroso, Aline G. [1 ]
del Mastro, Nelida L. [1 ]
机构：
[1] Inst Energy & Nucl Res IPEN CNEN SP, Ave Lineu Prestes 2242, Sao Paulo, Brazil
来源：
RADIATION PHYSICS AND CHEMISTRY | 2019年 / 158卷
关键词：
Arrowroot starch; Maranta arundinacea; Gamma radiation; Food irradiation; FUNCTIONAL-PROPERTIES; TUBER;
D O I：
10.1016/j.radphyschem.2019.02.020
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：
The term arrowroot is used for the starch obtained from the rhizomes of Maranta arundinacea. In the present work effects of Co-60 radiation treatment (dose up to 15 kGy) on structural characteristics and pasting properties of arrowroot starch were evaluated. Thermal properties, granule size and shape and size distribution, by means of optical and scanning electron microscopy and Fourier transform IR (FTIR) spectra were also obtained. On pasting properties strong decrease in peak and final viscosities, as well as breakdown, were observed. In the dose range applied, minimal changes in crystallinity, molecular composition and structure of arrowroot starch were found.
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收藏
页码：194 / 198
页数：5
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