山奈酸烷基酯对亚麻籽油及其脂肪酸甲酯的抗氧化作用

IF 1.9 4区 农林科学 Q3 CHEMISTRY, APPLIED
Derya Arslan, Tomaž Polak, Nataša Poklar Ulrih
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引用次数: 0

摘要

以己醇 CH3(CH2)5OH 和棕榈酰氯 CH3(CH2)14COCl 为酰基供体,酶法合成了山奈酸的烷基酯。在两种脂质介质(亚麻籽油及其脂肪酸甲酯(FAME))中,采用不同方法测定了这些共轭物的脂质氧化阻滞活性。在两种脂质介质中,棕榈酰频哪酸酯都能更有效地减缓初级和次级氧化产物的形成。在 DPPH 自由基清除活性、β-胡萝卜素漂白和 TEAC 检测方面,与己酯相比,它在 FAME 中具有更高的活性。在抗氧化活性分析中,散装油中的己酯活性更高。这些分子的烷基侧链长度对其抗氧化活性有影响,这种影响因使用环境而异。与最初在油样中发现的酚类化合物相比,共轭物在储存过程中更加稳定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Antioxidative effects of alkyl esters of sinapic acid on flaxseed oil and its fatty acid methyl esters

Antioxidative effects of alkyl esters of sinapic acid on flaxseed oil and its fatty acid methyl esters

Alkyl esters of sinapic acid were enzymatically synthesized by using hexanol CH3(CH2)5OH and palmitoyl chloride CH3(CH2)14COCl as acyl donors. The lipid oxidation retarding activities of these conjugates were determined using different methods in two lipid media; bulk flaxseed oil and its fatty acid methyl esters (FAME). Palmitoyl sinapate more efficiently slowed down the formation of primary and secondary oxidation products in both lipid media. In terms of DPPH radical scavenging activity, β-carotene bleaching and TEAC assays, it provided higher activity compared to hexyl ester in FAME. Hexyl ester was more active in bulk oil in terms of antioxidant activity analyses. The alkyl side chain length of these molecules had an impact on their antioxidative activity and this effect differed according to the environment in which they were used. The conjugates remained more stable on storage compared to the phenolic compounds originally found in the oil samples.

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来源期刊
CiteScore
4.10
自引率
5.00%
发文量
95
审稿时长
2.4 months
期刊介绍: The Journal of the American Oil Chemists’ Society (JAOCS) is an international peer-reviewed journal that publishes significant original scientific research and technological advances on fats, oils, oilseed proteins, and related materials through original research articles, invited reviews, short communications, and letters to the editor. We seek to publish reports that will significantly advance scientific understanding through hypothesis driven research, innovations, and important new information pertaining to analysis, properties, processing, products, and applications of these food and industrial resources. Breakthroughs in food science and technology, biotechnology (including genomics, biomechanisms, biocatalysis and bioprocessing), and industrial products and applications are particularly appropriate. JAOCS also considers reports on the lipid composition of new, unique, and traditional sources of lipids that definitively address a research hypothesis and advances scientific understanding. However, the genus and species of the source must be verified by appropriate means of classification. In addition, the GPS location of the harvested materials and seed or vegetative samples should be deposited in an accredited germplasm repository. Compositional data suitable for Original Research Articles must embody replicated estimate of tissue constituents, such as oil, protein, carbohydrate, fatty acid, phospholipid, tocopherol, sterol, and carotenoid compositions. Other components unique to the specific plant or animal source may be reported. Furthermore, lipid composition papers should incorporate elements of year­to­year, environmental, and/ or cultivar variations through use of appropriate statistical analyses.
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