期刊
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
卷 120, 期 4, 页码 -出版社
WILEY
DOI: 10.1002/ejlt.201700349
关键词
chlorophyll; cold-pressed hempseed oil; oxidative stability; peroxide value; conjugated dienes; ultrasound
资金
- Canada government through Growing Forward 2, a federal-provincial-territorial initiative [GF2 GI-ARDI-1000108035]
- Manitoba government through Growing Forward 2, a federal-provincial-territorial initiative [GF2 GI-ARDI-1000108035]
- Hemp Oil Canada Inc.
- NSERC [RGPIN-2015-03809]
- University of Manitoba's GETS scholarship
The effects of ultrasonic bleaching on chlorophyll reduction and oxidative stability of cold-pressed Cannabis sativa (hemp) seed oil is investigated using three different clays, Sepiolite, activated Bentonite, and an industrial clay. The chlorophyll content is significantly reduced (p<0.05) from 56.3 mu g g(-1) in the untreated oil to 14.8 mu g kg(-1), 9.9 mu g kg(-1), and 7.8 mu g kg(-1) in oils treated with Sepiolite, activated Bentonite, and industrial clay, respectively. Oxidative stability is enhanced in all ultrasonically-treated oils by a significant (p<0.05) reduction in Peroxide Value (PV) with the highest reduction (97%) observed in the presence of industrial clay (PV = 0.11 mEq kg(-1)). A corresponding reduction in Conjugated Dienes (CD) is also found in the treated samples ranging from 0.073-0.095% compared to 0.102% for the control. During accelerated storage at 60 degrees C, increase in PVs and CDs are significantly (p<0.05) slower for the ultrasonically treated oils in the presence of clays compared to the control. Accelerated storage at 40 degrees C shows that the PV is greater in hempseed oil bleached with Sepiolite clay compared to a combination of Sepiolite and ultrasonic bleaching. Based on these results it is evident that the rapid removal of chlorophyll from cold pressed hempseed oil is enhanced by a combination of bleaching clay and ultrasonic treatment.
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