Adsorption of grape pomace (Vitis vinifera) and pecan shell (Carya illinoensis) phenolic compounds to insoluble dietary fiber

被引:4
|
作者
Rodrigo Subiria-Cueto, Carlos [1 ]
Adrian Munoz-Bernal, Oscar [1 ]
de la Rosa, Laura A. [1 ]
Wall-Medrano, Abraham [1 ]
Rodrigo-Garcia, Joaquin [1 ]
Martinez-Gonzalez, Alejandra, I [1 ]
Gonzalez-Aguilar, Gustavo [2 ]
Del Rocio Martinez-Ruiz, Nina [1 ]
Alvarez-Parrilla, Emilio [1 ]
机构
[1] Univ Autonoma Ciudad Juarez, Inst Ciencias Biomed, Ciudad Juarez, Chihuahua, Mexico
[2] Ctr Invest Alimentac & Desarrollo AC, Lab Antioxidantes & Alimentos Func, Hermosillo, Sonora, Mexico
来源
关键词
phenolic compounds-dietary fiber interactions; adsorption isotherm; by-products; HPLC-MS; MS; Langmuir isotherm; Freundlich isotherm; MOLECULAR-INTERACTIONS; ANTIOXIDANT PROPERTIES; CHEMICAL-COMPOSITION; BIOACTIVE COMPOUNDS; POLYPHENOLS; BINDING; POLYSACCHARIDES; CELLULOSE; L; COMPONENTS;
D O I
10.1590/fst.41422
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Grape pomace (GP) and pecan shell (PS) are agro-industrial by-products rich in healthy bioactives, mainly phenolic compounds (PC) and dietary fiber (DF). Raw GP and PS were chemically characterized, and the adsorption isotherms of their PC-insoluble DF (IDF) complexes were evaluated. GP and PS statistically differed (p < 0.05) in chemical and physicochemical properties. Total PC, total flavonoids, and IDF were higher in GP. Thirteen and eight PC were identified in GP and PS by HPLC-MS/MS chromatography, finding isoquercetin and type B dimer and trimer procyanidins as the most abundant compounds. PC-IDF (phenolic compounds-insoluble dietary fiber) adsorption isotherms were determined by both spectroscopic (Freundlich) and HPLC-MS/MS (Freundlich/Langmuir) techniques, observing that PS IDF presented higher PC adsorption at all tested concentrations. Epicatechin, isoquercetin, and quercetin were the main identified PC in both by-products, and were able to fit to both Langmuir and Freundlich isotherm by HPLC-MS/MS.
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页数:8
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