Screening of seeds prepared from retrograded potato starch to increase retrogradation rate of maize starch
Screening of seeds prepared from retrograded potato starch to increase retrogradation rate of maize starch
复制标题
筛选回生马铃薯淀粉种子以提高玉米淀粉回生率
DOI：
10.1016/j.ijbiomac.2013.05.025
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发表时间：
2013-09-01
影响因子：
8.2
通讯作者：
Wu, Changyan
中科院分区：
文献类型：
--
作者：
Lian, Xijun;Liu, Lizeng;Wu, Changyan
本文将经草酸、盐酸、柠檬酸和/或淀粉酶处理后的马铃薯淀粉作为种晶添加到玉米淀粉糊中，以提高玉米淀粉的老化速率。结果表明，种子的加入大大促进了玉米淀粉的老化。用草酸处理的马铃薯淀粉老化种子对玉米淀粉老化率的提高最大，从1.5%提高到49%。对不同来源的玉米淀粉进行红外光谱分析，结果表明，玉米淀粉在老化过程中可能是在种子生长阶段形成双螺旋结构，而不是氢键。红外光谱、X-射线衍射和扫描电镜分析结果表明，草酸处理马铃薯老化淀粉后，形成了更多的氢键，晶种晶面增多，对马铃薯种子的生长有明显的促进作用。种子法玉米淀粉老化过程中必然存在一个与普通玉米淀粉老化不同的双螺旋晶体生长阶段。(C)2013爱思唯尔有限公司版权所有。
In this paper, retrograded potato starches treated by oxalic, hydrochloric and citric acids and/with amylase respectively, as seed crystals, are added into maize starch paste to increase maize starch retrogradation rate. The results show that addition of seed accelerates maize starch retrogradation greatly. Seed prepared from retrograded potato starch treated by oxalic acid increases maize starch retrogradation rate most, from 1.5% to 49%. The results of IR spectra of retrograded maize starch derived from different seeds show that double helix, not hydrogen bond, probably forms at stage of seed growth during retrogradation. The results of IR spectra, X-ray and SEM indicate that treatment of retrograded potato starch with oxalic acid leads to formation of more hydrogen bonds and an increase of seed crystal planes, which markedly promotes the growth of the seed. Retrogradation of maize starch by seeding method surely includes a stage of crystal growth through double helix in a way different from normal maize starch retrogradation. (C) 2013 Elsevier B.V. All rights reserved.