A comparative study of physicochemical properties, antioxidant and enzyme inhibition activities of oils extracted from seeds of seven new sunflower (Helianthus annuus L.) lines

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-12-31 DOI:10.3906/bot-2107-32

A. Abdalla

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Abstract

: This study was aimed to evaluate the physicochemical properties and chemical profile of seeds oil obtained from new seven sunflower ( Helianthus annuus L.) lines as well as their antioxidant and enzyme inhibition activity. The seeds powder was extracted by maceration in n-hexane. The oil content of the seven lines was ranged from 20.04% to 36.65% and was either yellow or pale yellow in color. No significant variations were observed on the refractive index (1.46 unit) of the oil. Oils of the seven lines were significantly ( p ˂ 0.05) different in their saponification values (32.13–282.66 mg KOH/g oil), peroxide values (1.76–13.26 mg KOH/g-oil), acid values (0.016–1.766 mg KOH/g oil) and free fatty acids content (6.26–72.23 mg KOH/g-oil). The chemical profile of the oil revealed that line APO42 contained the highest amount of monounsaturated fatty acids (55.9%). All the seven lines contained a considerable amount of linoleic acid (27.5%– 42.5%), and it represented the major compound in lines BOH3 (42.5%) and H1733 (39.8%). The variation was remarkable in their oleic acid content where the highest amount was observed in lines APO42 (55.4%) and APO43 (42.2%), respectively. Lines BOH3, APO43, APO41, and H1733 exerted the best total antioxidant activity in addition to their capacity to reduce Cu 2+ and Fe 3+ , while lines H1733 and APO43 had a metal chelating activity as well. All oils showed weak acetylcholinesterase, butyrylcholinesterase, α-glucosidase and α-amylase inhibitory activities. Only four lines showed considerable enzyme inhibitory activity against tyrosinase enzymes. Multivariance analysis suggested that linoleic acid participated in the observed biological activity of the oils. In conclusion, these new lines might contribute to the nutritional and phytotherapeutic properties of sunflower oil in addition to other industrial applications.

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7个向日葵新品系种子油脂理化性质、抗氧化及酶抑制活性的比较研究

摘要:本研究旨在评价7个向日葵新品系种子油的理化性质、化学性质及其抗氧化和酶抑制活性。采用正己烷浸渍法提取种子粉。7个品系的含油量在20.04% ~ 36.65%之间，颜色为黄色或淡黄色。油的折射率(1.46单位)无明显变化。7个品系的皂化值(32.13 ~ 282.66 mg KOH/g油)、过氧化值(1.76 ~ 13.26 mg KOH/g油)、酸值(0.016 ~ 1.766 mg KOH/g油)和游离脂肪酸含量(6.26 ~ 72.23 mg KOH/g油)差异显著(p小于0.05)。结果表明，APO42系的单不饱和脂肪酸含量最高(55.9%)。7个品系均含有相当数量的亚油酸(27.5% ~ 42.5%)，以BOH3(42.5%)和H1733(39.8%)为主要化合物。油酸含量差异显著，其中APO42和APO43的油酸含量最高，分别为55.4%和42.2%。品系BOH3、APO43、APO41和H1733除具有还原Cu 2+和Fe 3+的能力外，总抗氧化活性最好，而品系H1733和APO43也具有金属螯合活性。所有油脂均表现出较弱的乙酰胆碱酯酶、丁基胆碱酯酶、α-葡萄糖苷酶和α-淀粉酶抑制活性。只有4个品系对酪氨酸酶表现出明显的抑制活性。多因素分析表明，亚油酸参与了所观察到的油的生物活性。总之，这些新品系可能有助于葵花籽油的营养和植物治疗特性以及其他工业应用。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.