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投稿时间:2015-12-18
投稿时间:2015-12-18
中文摘要: 将槟榔籽干燥、粉碎后用 75 %乙醇提取,以该提取液为研究对象,分析其对 DPPH、羟基自由基、超氧根离子自 由基、ABTS 自由基的清除能力,并测试其还原力、对二价铁离子的络合能力和对亚油酸自氧化的抑制能力,综合分析其 体外抗氧化能力。结果表明,槟榔籽乙醇提取物(AKEE)对 DPPH 自由基、羟基自由基、超氧根离子自由基的清除能力均 强于 BHT,均高于常用抗氧化剂 BHT。同时,AKEE 还表现出较高的还原力,并能有效延缓亚油酸自氧化反应的速率。这 表明槟榔籽乙醇提取物具有较好的抗氧化性,在食品或其它工业中有潜在的用途。
Abstract:The areca kernel was dried, corssed and then extracted by 75 % ethanol aqueous. The antioxidant activity of the extraction from areca kernel by 75 % ethanol (AKEE) was studied through testing its scavenging activity on DPPH radical, hydroxyl radical, ABTS and superoxide radical. Besides, its reducing power, chelat- ing capacity and inhibition of linoleic acid autoxidation were researched, too. Moreover, the polyphone compo- sition of this extraction was also analyzed by RP-HPLC. Compared with BHT, the AKEE exhibited higher scav- enging activity on DPPH·,·OH and O2-·, and showed higher reducing power. Results also showed that AKEE could effectively inhibit the autoxidation of linoleic acid. This meant that AKEE was a good nature antioxidant and had potential application in food or other industry.
keywords: areca kernel ethanol extraction antioxidant polyphones
文章编号:201608001 中图分类号: 文献标志码:A
基金项目:国家科技支撑项目(2012BAD31B03);海南省重大科技项目(ZDZX2013011)
作者 | 单位 |
张璐2,3,郑亚军1,2,李艳2,张有林1,*,张润光1,张玉峰2 | 1. 陕西师范大学 食品工程与营养科学学院,陕西 西安 710062;2. 中国热带农业科学院 椰子研究所, 海南 文昌 571339;3. 海南大学 园艺园林学院,海南 海口 570228 |
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