Chemical composition, structural and functional properties of soluble dietary fiber obtained from coffee peel using different extraction methods
文献类型： 外文期刊
作者： Dong, Wenjiang 1 ; Wang, Dandan 1 ; Hu, Rongsuo 1 ; Long, Yuzhou 1 ; Lv, Lishuang 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Spice & Beverage Res Inst, Wanning 571533, Hainan, Peoples R China
2.Nanjing Normal Univ, Sch Food Sci & Pharmaceut Engn, Dept Food Sci & Technol, 2 Xuelin Rd, Nanjing 210023, Peoples R China
3.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan, Peoples R China
关键词： Coffee peel; Soluble dietary fiber; Chemical composition; Structural property; Functional property
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：6.475； 五年影响因子：6.508 ）
ISSN： 0963-9969
年卷期： 2020 年 136 卷
页码：
收录情况： SCI
摘要： This study aimed to evaluate the effects of chemical, enzymatic, chemical-enzymatic, ultrasound-assisted enzymatic, and shear emulsifying-assisted enzymatic extraction methods on the physicochemical, structural, and functional properties of soluble dietary fiber from coffee peel. We found that the highest extraction yield of soluble dietary fiber was obtained using the shear emulsifying-assisted enzymatic method, and that similar protein contents were obtained from coffee peel using the enzymatic and shear emulsifying-assisted enzymatic methods. Compared with the other extraction methods, shear emulsifying-assisted enzymatic processing resulted in a higher water-holding capacity (7.05 g/g) and oil-holding capacity (3.61 g/g), but a lower emulsifying capacity (58.50%) when compared with that of chemical, enzymatic, and chemical-enzymatic processings. The soluble dietary fiber obtained from coffee peel using shear emulsifying-assisted enzymatic extraction was also characterized by the highest glucose absorption activity (228.06 mg/g), and enzymatic processing resulted in the highest nitrite ion absorption capacity (10.09 mg/g, pH = 2). These results indicated that shear emulsifying-assisted enzymatic extraction method was the most appropriate extraction method for coffee peel soluble dietary fiber.
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