Comparison of antioxidant activity of clove (Eugenia caryophylata Thunb) buds and lavender (Lavandula stoechas L.)
Comparison of antioxidant activity of clove (Eugenia caryophylata Thunb) buds and lavender (Lavandula stoechas L.)
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DOI：
10.1016/j.foodchem.2003.12.008
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发表时间：
2004-09-01
期刊：
影响因子：
8.8
通讯作者：
Küfrevioglu, OI
中科院分区：
文献类型：
--
作者：
Gülçin, I;Sat, IG;Küfrevioglu, OI
研究了丁香（Eugenia carophyllata）芽和熏衣草（Lavandula stoechas L.）研究了使用不同的抗氧化试验，还原电位，自由基清除，超氧阴离子自由基清除和金属螯合活性的熏衣草和熏衣草提取物的抗氧化性能进行了评价。熏衣草和熏衣草提取物均具有较强的总抗氧化活性。在浓度为20、40和60 μ g/ml时，红花和熏衣草水提取物对亚油酸乳剂脂质过氧化的抑制率分别为93.3%、95.5%、97.9%、86.9%、92.3%和94.8%。在相同浓度下，红花和熏衣草的乙醇提取物分别为94.9%、95.5%、98.2%、92.5%、93.8%和96.5%。分别相比之下，60 μ g/ml的标准抗氧化剂如丁基羟基茴香醚（BHA）、丁基羟基甲苯（BHT）和α-生育酚对亚油酸乳剂的过氧化分别表现出96.5%、99.2%和61.1%的抑制。在所有测试浓度（20，40，和60 μ g/ml）的两种提取物的熏衣草和熏衣草有有效的还原电位，自由基清除，超氧阴离子自由基清除，和金属螯合活性。将这些不同的抗氧化剂活性与标准抗氧化剂如BHA、BHT和α-生育酚进行比较。此外，还以没食子酸当量为指标，测定了熏衣草和熏衣草提取物中总酚类化合物的含量。(C)2004 Elsevier Ltd.保留所有权利。
The antioxidant activity of water and ethanol extracts of clove (Eugenia carophyllata) buds and lavender (Lavandula stoechas L.) was studied. The antioxidant properties of both extracts of clove and lavender were evaluated using different antioxidant tests; reductive potential, free radical scavenging, superoxide anion radical scavenging and metal chelating activities. The both extracts of clove and lavender exhibited strong total antioxidant activity. At the concentrations of 20, 40, and 60 mug/ml, water extract of clove and lavender showed 93.3%, 95.5%, 97.9%, 86.9%, 92.3%, and 94.8% inhibition on lipid peroxidation of linoleic acid emulsion, respectively. At the same concentrations, ethanol extract of clove and lavender exhibited 94.9%, 95.5%, 98.2%, 92.5%, 93.8%, and 96.5%. respectively. Comparable, 60 mug/ml of standard antioxidant such as butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), and alpha-tocopherol exhibited 96.5%, 99.2%, and 61.1% inhibition on peroxidation of linoleic acid emulsion, respectively. The both extracts of clove and lavender had effective reductive potential, free radical scavenging, superoxide anion radical scavenging, and metal chelating activities at all tested concentrations (20, 40, and 60 mug/ml). Those various antioxidant activities were compared to standard antioxidants such as BHA, BHT, and alpha-tocopherol. In addition, total phenolic compounds in the both extracts of clove and lavender were determined as gallic acid equivalent. (C) 2004 Elsevier Ltd. All rights reserved.