摘要
研究米象、玉米象、谷蠹3种蛀蚀性害虫在不同生长发育阶段侵害小麦后,对小麦淀粉颗粒特性的影响,旨在为虫蚀小麦的利用和预防提供数据支持。以河南农业科学院豫保1号小麦为材料,探讨米象、玉米象、谷蠹在不同发育阶段(卵期、幼虫期、蛹期、成虫期)侵害小麦后,小麦淀粉颗粒形貌、粒径、结晶特性、短程晶体结构的变化。结果表明:被3种蛀蚀性害虫侵害后的小麦淀粉颗粒形貌均发生较大变化,幼虫期侵害后淀粉表面开始出现明显凹陷,以成虫期破损淀粉数量最多;D 50、体积平均径、面积平均径与对照样相比整体略微升高,但在害虫生长发育过程中小麦淀粉体积平均径、面积平均径无明显变化;小麦淀粉结晶特性变化不明显,且傅立叶红外光谱显示淀粉的晶型结构变化不大。
The aim of this study was to investigate the effect of different stages of Sitophilus oryzae,Sitophilus zeamais,Rhyzopertha dominica on starch granule properties of wheat,and provide the data support for the utilization and prevention of infested wheat.In this experiment,wheat from Henan No.1YuBao was selected as material to investigate the changes of the starch granule morphology,the particle size distribution of starch,XRD crystal determination curve of starch,FTIR curve of starch of wheat infested by Sitophilus oryzae,Sitophilus zeamais,Rhyzopertha dominica at different stages(egg,larval,pupal and adult stages).The results showed that the morphology of wheat starch granules changed greatly after infested by three kinds of boring pests.The starch surface began to appear obvious depression after the larval stage invasion,and the number of broken starch was the highest after the adult stage invasion;D 50,volume average diameter and area mean diameter slightly increased,but the volume average diameter and area mean diameter after the different stages pests infestation did not show regular pattern.The change of the crystallization characteristics of wheat starch was not obvious,and FTIR showed that the crystal structure of starch had few changes.
作者
张玉荣
魏秋瑞
夏欣雨
ZHANG Yurong;WEI Qiurui;XIA Xinyu(School of Food Science and Technology,Henan University of Technology,Zhengzhou 450001,China)
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2019年第5期83-88,共6页
Journal of Henan University of Technology：Natural Science Edition
基金
国家自然科学基金项目(31371852)
关键词
蛀蚀性害虫
不同虫态
小麦淀粉
颗粒特性
boring pests
different insect stages
wheat starch
granule properties of starch
