Antioxidant activity of Gardenia jasminoides Ellis fruit extracts
Antioxidant activity of Gardenia jasminoides Ellis fruit extracts
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DOI：
10.1016/j.foodchem.2011.03.090
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发表时间：
2011-10-01
期刊：
影响因子：
8.8
通讯作者：
Lim, Beong Ou
中科院分区：
文献类型：
--
作者：
Debnath, Trishna;Park, Pyo-Jam;Lim, Beong Ou
本研究的目的是表征栀子 (GJE) 果实的水提取物和乙醇提取物的抗氧化特性。水基提取物的 DPPH（1,1-二苯基 1-2-苦基肼）、ABTS [2,2'-连氮基-双（3-乙基苯并噻唑啉-6-磺酸）二铵盐]、羟基和超氧自由基清除活性的 IC50 值为 0.14、0.21、1.08 和 1.43 mg/ml，水提取物的 IC50 值为 0.36，乙醇提取物分别为 0.39、1.56 和 1.99 mg/ml。提取物还表现出很强的还原能力、亚硝酸盐清除活性、抑制亚油酸氧化、超氧化物歧化酶样（SOD-like）活性和过氧化氢酶活性。然而，水提取物比乙醇提取物具有更高的抗氧化活性。此外，抗氧化活性与观察到的酚类和类黄酮含量高度相关。因此，我们的研究强烈表明，栀子果实的提取物可能是作为膳食补充剂的抗氧化剂的极好来源。 (C) 2011 Elsevier Ltd. 保留所有权利。
The objective of this study was to characterise the antioxidant properties of both water and ethanol extracts from the fruit of Gardenia jasminoides Ellis (GJE). The IC50 values for DPPH (1,1-dipheny1-2-picryl-hydrazyl), ABTS [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)diammonium salt], hydroxyl and superoxide radical-scavenging activities were 0.14, 0.21, 1.08 and 1.43 mg/ml for the water-based extract, and 0.36, 0.39, 1.56 and 1.99 mg/ml for the ethanol-based extract, respectively. The extracts also showed strong reducing power, nitrite-scavenging activity, inhibition of linoleic acid oxidation, superoxide dismutase-like (SOD-like) activity and catalase activity. However, the water extract had a higher antioxidant activity than the ethanol extract. In addition, the antioxidant activities were highly correlated with the observed phenolic and flavonoid contents. Therefore, our study strongly suggests that extracts derived from the fruit of Gardenia jasminoides could be an excellent source of antioxidants as dietary supplements. (C) 2011 Elsevier Ltd. All rights reserved.