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首页> 外文会议>International Symposium of Biomedical Engineering >Fractionation and antioxidant activity potency of the extract of Garcinia lateriflora Blume var. javanica Boerl leaf
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Fractionation and antioxidant activity potency of the extract of Garcinia lateriflora Blume var. javanica Boerl leaf

机译：加基因菌毒素提取物的分馏和抗氧化活性效力。 Javanica Boerl叶

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Garcinia lateriflora leaves extract of the family Guttiferae has been known to have excellent antioxidant activity. The objective of the study was to determine the antioxidant effect of the n-hexane, ethyl acetate and methanol extracts of G. lateriflora leaves extract. The antioxidant activity was determined by 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging methods and Feric Reducing Antioxidant Power (FRAP) to determine the antioxidant properties. The extracts were fractionated by using column chromatography. The Methanol extract exhibited the strongest antioxidant activity with EC_(50) values are 13.95 and 19.65μg/mL by DPPH and FRAP methods respectively. E13 fraction was the most active fraction from ethyl acetate extract with EC_(50) value for DPPH scavenging method was 37.14μg/mL and 34.46μg/mL for reducing power by the FRAP method. Meanwhile M3 fraction was the most active fraction in methanol extract with EC_(50) value for DPPH scavenging method was 50.02μg/mL and 37.32μg/mL for reducing power by the FRAP method.
机译：藤黄lateriflora叶提取家庭藤黄科一直被称为具有优异的抗氧化活性。该研究的目的是确定G. lateriflora叶提取物的正己烷，乙酸乙酯和甲醇提取物的抗氧化作用。抗氧化活性通过1,1-二苯基-2-苦基苯肼（DPPH）自由基清除方法和Feric降低抗氧化能力（FRAP），以确定所述抗氧化剂性质决定。将萃取物用柱色谱法分级分离。甲醇提取物表现出与EC_最强的抗氧化活性（50）值分别为13.95和通过DPPH19.65μg/ mL和FRAP的方法。 E13分数为从与EC_乙酸乙酯萃取最活性级分对DPPH自由基清除方法（50）值为37.14μg/ mL和34.46μg/ mL的由FRAP方法还原能力。同时M3分数与EC_甲醇提取物中最活跃的分数为DPPH自由基清除方法（50）值为50.02μg/ mL和37.32μg/ mL的由FRAP方法还原能力。

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