Antioxidant activity of minor components of tree nut oils

被引：308

作者：

Miraliakbari, H. ^{[1
]}

Shahidi, F. ^{[1
]}

机构：

[1] Mem Univ Newfoundland, Dept Biochem, St John, NF A1B 3X9, Canada

来源：

FOOD CHEMISTRY | 2008年 / 111卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

antioxidant; tree nut oil extracts; trolox equivalent antioxidant capacity (TEAC); 1,1-diphenyl-2-picrylhydrazyl (DPPH); radical scavenging capacity; beta-carotene bleaching test; oxygen radical absorbance capacity (ORAC); photochemiluminescence inhibition assay;

D O I：

10.1016/j.foodchem.2008.04.008

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The antioxidative components of tree nut oils were extracted using a solvent stripping process. Tree nut oil extracts contained phospholipids, sphingolipids, sterols and tocopherols. The chloroform/methanol extracted oils had higher amounts of phenolic compounds than their hexane extracted counterparts. The antioxidant activity of tree nut oil minor component extracts were assessed using the 2,2-azino-bis (3-ethylbenzthiazoline sulphonate) (ABTS) radical scavenging activity, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity, beta-carotene bleaching test, oxygen radical absorbance capacity (ORAC) and photochemiluminescence inhibition assays. Results of these studies demonstrated that extracts of chloroform/methanol extracted oils possessed higher antioxidant activities than extracts of their hexane extracted counterparts. Meanwhile the extract of chloroform/methanol extracted pecan oil possessed the highest antioxidant activity. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：421 / 427

页数：7

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