期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 90, 期 -, 页码 246-253出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2017.12.038
关键词
Wheat germ oil; Roasting; Antioxidant capacity; Oxidative stability; Volatile compounds
Wheat germ oil (WGO) is rich in highly concentrated nutrients, especially vitamin E and polyunsaturated fatty acids. In this study, changes in oxidative stability, bioactive components, volatile compounds, and antioxidant capacity of WGO extracted from wheat germ roasted at 180 degrees C for 0-20 min were investigated. In general, antioxidant capacity and oxidative stability of WGO increased with roasting. Compared to oil from unroasted wheat germ, oil from wheat germ roasted for 20 min demonstrated the highest total phenolics, but a slight reduction in total tocopherols and beta-carotenoids content. Fatty acid profiles were not affected, whereas hydroxymethylfrufural (HMF) content increased significantly, suggested the extent of Maillard reaction increased significantly with roasting. Among volatiles, esters such as n-butyl acrylate and acids such as hexanoic acid prevailed in WGO from unroasted wheat germ. However, after roasting, the levels of these compounds decreased or disappeared and furfurans, pyranes, pyrazines, and pyrroles with high odor activity became the most abundant.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据