The antioxidant activity and free radical scavenging potential of two different solvent extracts of Camellia sinensis (L.) O. Kuntz, Ficus bengalensis L. and Ficus racemosa L.
The antioxidant activity and free radical scavenging potential of two different solvent extracts of Camellia sinensis (L.) O. Kuntz, Ficus bengalensis L. and Ficus racemosa L.
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DOI：
10.1016/j.foodchem.2007.09.008
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发表时间：
2008-04-01
期刊：
影响因子：
8.8
通讯作者：
Manian, Sellamuthu
中科院分区：
文献类型：
--
作者：
Manian, Rajesh;Anusuya, Nagarajan;Manian, Sellamuthu
孟加拉榕（Ficus bengalensis L.）和Ficus racemosa L.在印度用于治疗糖尿病和许多其他疾病。由于这些效果可能与抗氧化化合物的存在有关，因此，以茶树（Camellia sinensis（L.））为对照，评价了孟加拉红（F bengalensis）（气生根）和总状红（F racemosa）（茎皮）的甲醇和70%丙酮（丙酮：水，70：30）提取物的抗氧化活性和自由基清除能力。O. Kuntz（绿色茶）。绿色茶和孟加拉茶的甲醇提取物和总状花序的70%丙酮提取物中总酚含量相对较高。提取物的抗氧化潜力通过采用不同的体外试验如还原力试验、DPPH. ABTS（.除以）。和（OH）-O-。自由基清除能力、亚油酸乳化体系过氧化抑制能力、过氧化氢诱导法抗溶血能力和金属离子螯合能力。虽然所有的提取物都表现出剂量依赖性的还原能力，但所有样品的甲醇提取物都具有更强的供氢能力。在DPPH中的所有样品中保持了类似的剂量依赖性活性线。和（OH）-O-。净化系统所有提取物对亚油酸乳状液体系均表现出抗氧化活性（34-38%）。具有抗溶血活性和金属离子螯合能力，具有多种抗氧化活性。(c)2007爱思唯尔有限公司保留所有权利。
The stem bark and fruits of Ficus bengalensis L. and Ficus racemosa L. are used in India for the treatment of diabetes and a number of other diseases. Since these effects may be correlated with the presence of antioxidant compounds, methanol and 70% acetone (acetone:water, 70:30) extracts of F bengalensis (aerial root) and F racemosa (stem bark) were evaluated for their antioxidant activity and radical scavenging capacity in comparison with Camellia sinensis (L.) O. Kuntz (green tea). Methanol extracts of green tea and F bengalensis and 70% acetone extract of F racemosa contained relatively higher levels of total phenolics than the other extracts. The antioxidant potential of the extracts were assessed by employing different in vitro assays such as reducing power assay, DPPH., ABTS(.divided by). and (OH)-O-. radical scavenging capacities, peroxidation inhibiting activity through linoleic acid emulsion system, antihemolytic assay by hydrogen peroxide induced method and metal ion chelating ability. Though all the extracts exhibited dose dependent reducing power activity, methanol extracts of all the samples were found to have more hydrogen donating ability. Similar line of dose dependent activity has been maintained in all the samples in DPPH. and (OH)-O-. scavenging systems. All the extracts exhibited antioxidant activity against the linoleic acid emulsion system (34-38%). The potential of multiple antioxidant activity was evident as it possessed antihemolytic activity and metal ion chelating potency. (c) 2007 Elsevier Ltd. All rights reserved.