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Li Y, Liu X, Zhou L, Dai L, Qin Y, Xiong L, Sun Q. Effects of peanut oligopeptides on the pasting properties of potato starch and digestive characteristics of dry, flat potato starch noodles. Int J Biol Macromol 2023; 253:126992. [PMID: 37741479 DOI: 10.1016/j.ijbiomac.2023.126992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/24/2023] [Accepted: 09/16/2023] [Indexed: 09/25/2023]
Abstract
In this study, we developed dry, flat potato starch noodles with an ideal taste and low digestibility. Peanut oligopeptide and potato starch were combined to form dry, flat potato starch noodles containing different peanut oligopeptide contents using a steam-slice method. Adding 5 % and 10 % peanut oligopeptides maintained the dry, flat starch noodles' quality. Scanning electron microscopy (SEM) analysis showed that dry, flat starch noodles containing peanut oligopeptides had more pores with pore sizes ranging from 0.30 μm to 2.00 μm. X-ray diffraction (XRD) results showed that peanut oligopeptide promoted the recrystallization of amylopectin during the retrogradation process after gelatinization, and the crystallinity of noodles ranged from 4.31 % (control noodles) to 18.24 % (noodles containing 10 % peanut oligopeptides). An in vitro simulated digestion test showed that the slowly digestible starch and resistant starch contents of noodles containing 10 % peanut oligopeptides were 18.24 % and 22.03 %-significantly higher than control starch noodles (14.88 % and 9.9 %, respectively). Therefore, when peanut oligopeptides were added to dry, flat starch noodles, it was a promising material for lowering blood sugar levels after meals.
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Affiliation(s)
- Yongdi Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Xiaoqi Liu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Liyang Zhou
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Lei Dai
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Yang Qin
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Liu Xiong
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Qingjie Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China; Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, China.
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