Comparisons of the micronization, steam explosion, and gamma irradiation treatment on chemical composition, structure, physicochemical properties, and in vitro digestibility of dietary fiber from soybean hulls

被引:59
作者
Zhu, Li [1 ]
Yu, Bing [1 ]
Chen, Hong [2 ]
Yu, Jie [1 ]
Yan, Hui [1 ]
Luo, Yuheng [1 ]
He, Jun [1 ]
Huang, Zhiqing [1 ]
Zheng, Ping [1 ]
Mao, Xiangbing [1 ]
Luo, Junqiu [1 ]
Chen, Daiwen [1 ]
机构
[1] Sichuan Agr Univ, Inst Anim Nutr, Minist Educ, Key Lab Anim Dis Resistance Nutr, Chengdu 611130, Peoples R China
[2] Sichuan Agr Univ, Coll Food Sci, Yaan 625014, Peoples R China
基金
中国国家自然科学基金;
关键词
Soybean hull; Micronization; Gamma irradiation; Steam explosion; Physicochemical properties; In vitro digestibility; SIMULATED DIGESTION SYSTEM; FUNCTIONAL-PROPERTIES; ENZYMATIC-HYDROLYSIS; DILUTE-ACID; ENERGY; DEGRADATION; EXTRACTION; PRESSURE;
D O I
10.1016/j.foodchem.2021.130618
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The objective of this study was to compare the effects of the micronization (MT), steam explosion (SE), and gamma irradiation (GI) treatment on the chemical composition, structure, physicochemical properties, and in vitro digestibility of dietary fiber from soybean hulls. GI (1200 kGy) treatment exerted the optimum effects on improving soluble dietary fiber content, in vitro gross energy digestibility (IVGED), and reducing sugar yield (RS) in the three modification methods, increased by 342.88%, 55.24%, and 117.02%, respectively. Compared with GI treatment, MT-GI combined treatment could further enhance the degradation effect of irradiation and improve the physicochemical properties (p < 0.05) in soybean fibers. From the results of correlation analysis, RS was a significant positive correlation (p < 0.05) with IVGED, and RS = -112.24 + 4.90 x IVGED (r(2) = 0.82, p < 0.01). In summary, MT-GI combined treatment could be considered the ideal modification method to improve the quality of soybean fiber.
引用
收藏
页数:9
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