Production of antioxidants by non-isothermal autohydrolysis of lignocellulosic wastes

被引：69

作者：

Conde, Enma ^{[1
,2
]}

Moure, Andres ^{[1
,2
]}

Dominguez, Herminia ^{[1
,2
]}

Carlos Parajo, Juan ^{[1
,2
]}

机构：

[1] Univ Vigo, Dept Chem Engn, As Lagoas 32004, Ourense, Spain

[2] Univ Vigo, CITI, San Ciprian De Vinas 32900, Ourense, Spain

来源：

LWT-FOOD SCIENCE AND TECHNOLOGY | 2011年 / 44卷 / 02期

关键词：

Antioxidants; Autohydrolysis; Extracts; Lignocellulosic wastes; Phenolics; VINIFERA BY-PRODUCTS; EUCALYPTUS-GLOBULUS; SOLVENT-EXTRACTION; STEAM-EXPLOSION; FERULIC ACID; WOOD; FRACTIONS; LIQUORS; POWER;

D O I：

10.1016/j.lwt.2010.08.006

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Selected lignocellulosic wastes were subjected to autohydrolysis processing (in media containing hot compressed water) at temperatures in the range 200-240 C The aqueous phases from treatments were extracted with ethyl acetate and the soluble solids were redissolved in 80% ethanol (to obtain a more hydrophylic product) The resulting extracts were assayed for yield phenolic composition and antioxidant capacity The highest percentages of solid solubilization upon autohydrolysis (31 and 29%) were observed for corncob and almond shells respectively Ethanol redissolution of ethyl acetate extracts from almond shells chestnuts burs and grape pomace resulted in concentrates with decreased phenolic contents and lower antioxidant capacities (measured by the DPPH scavenging radical method) The best concentrate contained benzoic and cinnamic acids as major phenolic components (C) 2010 Elsevier Ltd All rights reserved

引用

页码：436 / 442

页数：7

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