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Optimizing planting density enhances the multi-scale structural characteristics and in vitro digestibility of maize starch via modulating the size distribution of granules

文献类型: 外文期刊

作者: Wu, Xiaorong 1 ; Guo, Ke 2 ; Liang, Wenxin 3 ; Wang, Qian 3 ; Zhai, Mingming 1 ; Li, Jingyuan 4 ; Herburger, Klaus 3 ; Wang, Zihao 1 ; Zhong, Yuyue 4 ; Han, Qingfang 1 ;

作者机构: 1.Northwest A&F Univ, Coll Agron, Key Lab Crop Physioecol & Tillage Sci North wester, Yangling, Shaanxi, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Food Crops, Nanjing, Jiangsu, Peoples R China

3.Univ Rostock, Inst Biol Sci, Rostock, Germany

4.Hong Kong Polytech Univ, Dept Food Sci & Nutr, Kowloon, Hong Kong, Peoples R China

关键词: Gricultural modification; Starch structure; Functional properties

期刊名称:INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES ( 影响因子:8.5; 五年影响因子:8.7 )

ISSN: 0141-8130

年卷期: 2024 年 280 卷

页码:

收录情况: SCI

摘要: The modification of starch through agricultural practices is becoming increasingly significant for producing healthy foodstuffs and raw materials for industrial applications, consequently gaining momentum in academic research. This study examined how three different planting densities influenced the distribution of granule sizes, multi-scale structural characteristics, and in vitro digestibility of maize starch. The results showed that planting density significantly enhanced grain yield and relative crystallinity, and significant increases were also observed in the contents of both rapidly and slowly digestible starch. The surface- and volume-weighted mean diameter of granules significantly increased under the medium level (6.75 x 10(4) plants ha(- 1)), and then decreased under high planting density level. As planting density level increased, the amylose content, peak viscosity, and hardness varied from 23.3 to 26.4 %, from 1962 to 2659 mPa & sdot;s, and from 129.3 to 307.6 g, respectively. However, no change was found in crystalline structure of maize starch. These results indicated that optimizing planting density could effectively improve grain yield and starch characteristics of maize, with the best effect under the level of 6.75 x 104 plants ha(-1).

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