Insights into structural and physicochemical properties of maize starch after Fusarium verticillioides infection
文献类型： 外文期刊
第一作者： Wei, Fangli
作者： Wei, Fangli;Ma, Nini;Gao, Meixu;Guo, Wei;Liu, Xingxun;Haseeb, Hafiz Abdul
作者机构：
关键词： Fungal infection; Fusarium verticillioides; Starch; Molecular structure; Maize
期刊名称：JOURNAL OF FOOD COMPOSITION AND ANALYSIS （ 影响因子：4.52； 五年影响因子：4.942 ）
ISSN： 0889-1575
年卷期： 2022 年 114 卷
页码：
收录情况： SCI
摘要： Crop loss caused by toxigenic fungi is a standing problem for many cereals worldwide. In this study, structural and physicochemical changes of maize starch after F. verticillioides infection were evaluated. During the colo-nization, fungi use starch as the carbon source to provide nutrition for their growth and development resulting in the decline of the starch content of maize kernels. The maize starch was severely damaged and many holes were observed on the surface of starch granules when kernels were infected by F. verticillioides. Gel-permeation chromatography (GPC) analysis showed that amylopectin in maize starch was preferentially degraded and the content of amylose was increased. Simultaneously, the onset and peak of gelatinization temperatures of starch after fungal infection were raised. In comparison with native starch, the viscosity and setback value of infected starch was decreased. Furthermore, we found that 2 genes encoded by F. verticilllioides played important roles in starch degradation.
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