文章基本信息

标题：Effect of novel synthesised policosanyl phenolates on lipid oxidation
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作者：Zhiqiang Wang ; Seung Hwan Hwang ; Soon Sung Lim 等
期刊名称：Czech Journal of Food Sciences
印刷版ISSN：1212-1800
电子版ISSN：1805-9317
出版年度：2016
卷号：34
期号：5
页码：414-421
DOI：10.17221/530/2015-CJFS
出版社：Czech Academy of Agricultural Sciences
摘要：Lipophilic derivatisation of phenolic acids could greatly improve their antioxidant activities and solubility in hydrophobic environments, broadening their applications in food, pharmaceutical, and cosmetic industries. In this study, we conducted enzymatic lipophilisation of eight phenolates with policosanols. Vinyl phenolates were used as intermediates to improve the efficiency of enzymatic lipophilisation; and the yields of policosanyl phenolates were in the range of 1.32–20.58%. The antioxidant activities of the resulting phenolipids were compared using 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assay and linoleic acid peroxidation ferric thiocyanate assay. The synthesised policosanyl phenolates showed lower ABTS radical scavenging capacities (IC₅₀s > 15 mM); whereas they showed high lipid peroxidation inhibitory activities (IC₅₀s of peroxidation value < 0.25 mM). The lipid oxidation inhibitory activities of policosanol phenolates were further evaluated using the total oxidation value in a linoleic acid model system and the thiobarbituric acid reactive substances value in a cooked pork model system. Finally, policosanyl 4-hydroxybenzoate, policosanyl syringate, and policosanyl 4-hydroxyphenylacetate showed the highest inhibition effects on lipid oxidation and a potential for use as lipid antioxidants.
关键词：Novozyme 435; lipophilisation; policosanols; phenolic acids; antioxidan