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Lei X, Xu J, Han H, Zhang X, Li Y, Wang S, Li Y, Ren Y. Fine molecular structure and digestibility changes of potato starch irradiated with electron beam and X-ray. Food Chem 2024; 439:138192. [PMID: 38091788 DOI: 10.1016/j.foodchem.2023.138192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/25/2023] [Accepted: 12/08/2023] [Indexed: 01/10/2024]
Abstract
The change of digestibility of starch irradiated with different types from the perspective of fine structure is not well understood. In this work, the change of internal structure, molecular weight and chain-length distribution, helical structure, lamellar structure, fractal structure and digestibility of native and treated potato starch with electron beam and X-ray was analyzed. Two irradiations caused the destruction of internal structure, the disappearance of growth rings and increase of pores. Irradiation degraded starch to produce short chains and to decrease molecular weight. Irradiation increased double helical content and the thickness and peak area of lamellar structure, resulting in the reorganization of amylopectin and increase of structure order degree. The protected glycosidic linkages increased starch resistance to hydrolase attack, thereby enhancing the anti-digestibility of irradiated starch. Pearson correlation matrix also verified the above-mentioned results. Moreover, X-ray more increased the anti-digestibility of starch by enhancing ability to change fine structure.
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Affiliation(s)
- Xiaoqing Lei
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Jiayi Xu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Hui Han
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Xiaolu Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Yihan Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Shuo Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Yali Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Yamei Ren
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory for Food Nutrition and Safety Control of Xinjiang Production and Construction Corps, School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, PR China.
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Wang H, Liu J, Zhang Y, Li S, Liu X, Zhang Y, Zhao X, Shen H, Xie F, Xu K, Zhang H. Insights into the hierarchical structure and physicochemical properties of starch isolated from fermented dough. Int J Biol Macromol 2024; 267:131315. [PMID: 38569985 DOI: 10.1016/j.ijbiomac.2024.131315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 03/18/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Understanding the hierarchical structure and physicochemical properties of starch isolated from fermented dough with different times (0-120 min) is valuable for improving the quality of fermented dough-based products. The results indicate that fermentation disrupted the starch granule surface and decreased the average particle size from 19.72 μm to 18.45 μm. Short-term fermentation (< 60 min) disrupted the crystalline, lamellar, short-range ordered molecular and helical structures of starch, while long-term fermentation (60-120 min) elevated the ordered degree of these structures. For example, relative crystallinity and double helix contents increased from 23.7 % to 26.8 % and 34.4 % to 37.2 %, respectively. During short-term fermentation, the structural amorphization facilitated interactions between starch molecular chains and water molecules, which increased the peak viscosity from 275.4 to 320.6 mPa·s and the swelling power from 7.99 to 8.52 g/g. In contrast, starches extracted from long-term fermented dough displayed the opposite results. Interestingly, the hardness and springiness of starch gels gradually decreased as fermentation time increased. These findings extend our understanding of the starch structure-property relationship during varied fermentation stages, potentially benefiting the production of better-fermented foods.
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Affiliation(s)
- Hongwei Wang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Jiajia Liu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Yusong Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Shuaihao Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China
| | - Xingli Liu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Yanyan Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Xuewei Zhao
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Huishan Shen
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Fengwei Xie
- Department of Chemical Engineering, University of Bath, Bath BA2 7AY, United Kingdom
| | - Ke Xu
- College of Food Science and Engineering, Northwest A & F University, Yangling 712100, China
| | - Hua Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China.
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