Free radical scavenging effects of the Philippine endemic medicinal plant Alpinia elegans (Zingiberaceae)

The Gardens' Bulletin, Singapore Pub Date : 2019-12-16 DOI:10.26492/gbs71(2).2019-12

M. Naive, J. A. G. P. Dalisay, E. P. Maglangit, G. C. Cafe, O. Nuñeza

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引用次数: 4

Abstract

Alpinia elegans (C.Presl) K.Schum. is an endemic Philippine medicinal plant used in the treatment of various conditions such as muscoloskeletal diseases, hemoptysis, headache, migraine, stomach ache, and as an anti-relapse for women. The major phytochemical constituents of the ethanolic extract from the leaves of Alpinia elegans were screened and their antioxidant activity was evaluated using an in vitro 1,1-Diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging (antioxidant) activity assay. Flavonoids, steroids, saponins, tannins, alkaloids, and cyanogenic glycosides were found to be present in the ethanolic leaf extract of Alpinia elegans, while anthraquinone was not detected. High DPPH radical scavenging (antioxidant) activity was observed in the ethanolic leaf extract of Alpinia elegans with a percentage DPPH inhibition of 95.11±1.00 at 500 μg/ml. The present study suggests that the leaf extract is a source of medicinal or pharmaceutical antioxidants. Information derived herein provides a preliminary scientific basis for the existing ethnobotanical knowledge of local communities.

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菲律宾特有药用植物紫藤对自由基的清除作用

elegans (C.Presl)是一种菲律宾特有的药用植物，用于治疗各种疾病，如肌肉骨骼疾病、咯血、头痛、偏头痛、胃痛，并作为妇女的抗复发药。通过体外1,1-二苯基-2-苦味酰肼(DPPH)自由基清除(抗氧化)活性测定，筛选了线虫叶乙醇提取物的主要植物化学成分。竹叶乙醇提取物中含有黄酮类、甾体、皂苷、单宁、生物碱和氰苷，未检出蒽醌。在500 μg/ml浓度下，菖蒲叶乙醇提取物对DPPH自由基的清除(抗氧化)活性为95.11±1.00。目前的研究表明，叶提取物是药用或药用抗氧化剂的来源。由此获得的信息为现有的当地群落民族植物学知识提供了初步的科学依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Gardens' Bulletin, Singapore

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