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气候变化对库拉索芦荟（Aloe vera (L.) Burm.f.）植物化学多样性、总酚含量及体外抗氧化活性的影响

Effect of climate change on phytochemical diversity, total phenolic content and in vitro antioxidant activity of Aloe vera (L.) Burm.f.

作者信息

Kumar Sandeep, Yadav Amita, Yadav Manila, Yadav Jaya Parkash

机构信息

Department of Genetics, M.D. University, Rohtak, Haryana, 124001, India.

出版信息

BMC Res Notes. 2017 Jan 25;10(1):60. doi: 10.1186/s13104-017-2385-3.

DOI:10.1186/s13104-017-2385-3
PMID:28118858
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5264341/
Abstract

BACKGROUND

The aim of the present study was to analyse the effect of climate change on phytochemicals, total phenolic content (TPC) and antioxidant potential of methanolic extracts of Aloe vera collected from different climatic zones of the India.

METHODS

Crude methanolic extracts of A. vera from the different states of India were screened for presence of various phytochemicals, total phenolic content and in vitro antioxidant activity. Total phenolic content was tested by Folin-Ciocalteau reagent based assay whilst DPPH free radical scavenging assay, metal chelating assay, hydrogen peroxide scavenging assay, reducing power assay and β carotene-linoleic assay were used to assess the antioxidant potential of A. vera methanolic leaf extracts.

RESULTS

Alkaloids, phenols, flavonoids, saponins, and terpenes were the main phytochemicals presents in all accessions. A significant positive correlation was found between TPC and antioxidant activity of different accessions. Extracts of highland and semi-arid zones possessed maximum antioxidant potential. Accessions from tropical zones showed the least antioxidant activity in all assays.

CONCLUSIONS

It could be concluded that different agro-climatic conditions have effects on the phytochemicals, total phenolic content (TPC) and antioxidant potential of the A. vera plant. The results reveal that A. vera can be a potential source of novel natural antioxidant compounds.

摘要

背景

本研究的目的是分析气候变化对从印度不同气候区采集的库拉索芦荟甲醇提取物中植物化学物质、总酚含量（TPC）和抗氧化潜力的影响。

方法

对来自印度不同邦的库拉索芦荟粗甲醇提取物进行各种植物化学物质、总酚含量和体外抗氧化活性的筛选。总酚含量通过基于福林-西奥尔特试剂的测定法进行检测，同时采用DPPH自由基清除测定法、金属螯合测定法、过氧化氢清除测定法、还原能力测定法和β-胡萝卜素-亚油酸测定法来评估库拉索芦荟甲醇叶提取物的抗氧化潜力。

结果

生物碱、酚类、黄酮类、皂苷类和萜类是所有样品中主要的植物化学物质。不同样品的总酚含量与抗氧化活性之间存在显著正相关。高地和半干旱地区的提取物具有最大的抗氧化潜力。热带地区的样品在所有测定中显示出最低的抗氧化活性。

结论

可以得出结论，不同的农业气候条件对库拉索芦荟植物的植物化学物质、总酚含量（TPC）和抗氧化潜力有影响。结果表明，库拉索芦荟可能是新型天然抗氧化化合物的潜在来源。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee07/5264341/8bf8aa2dfeb3/13104_2017_2385_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee07/5264341/c22ea72f21db/13104_2017_2385_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee07/5264341/d35615eae4ae/13104_2017_2385_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee07/5264341/8bf8aa2dfeb3/13104_2017_2385_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee07/5264341/c22ea72f21db/13104_2017_2385_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee07/5264341/d35615eae4ae/13104_2017_2385_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee07/5264341/8bf8aa2dfeb3/13104_2017_2385_Fig3_HTML.jpg

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