Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11418-008-0252-1 |
The content of secondary phenol metabolites in pruned leaves of Aloe arborescens, a comparison between two methods: leaf exudates and leaf water extract | |
Gutterman, Yitzchak![]() | |
通讯作者 | Gutterman, Yitzchak |
来源期刊 | JOURNAL OF NATURAL MEDICINES
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ISSN | 1340-3443 |
出版年 | 2008 |
卷号 | 62期号:4页码:430-435 |
英文摘要 | Aloe arborescens plants, originating from the deserts of South Africa, are grown in the Introduction Garden at Sede Boker in the Negev Desert of Israel. In previous studies, we developed agro-technical methods to raise the content of secondary phenol metabolites (SPhMs) in the Aloe leaves. Plants that are subjected to repeated leaf pruning respond by increasing the content of their SPhMs. The SPhMs found in Aloe arborescens include barbaloin, aloenin and derivatives of aloeresin. Such compounds are used for many purposes, including human skin protection from sun and fire burns and high radiation, as products of the pharmaceutics and cosmetics industries, and as food supplements for treating stomach ulcers and diabetes. In the current study, the SPhMs were separated from pruned leaves of the same A. arborescens plants at the same time by two methods: (1) exudation by squeezing the tissues of the leaves, (2) immersion of the leaves’ pruned cut bottom in water and collection of the extract. The exudates and extract were frozen, freeze-dried to a powder and the SPhMs were then separated by chromatography. The yield of powder from water extraction from pruned leaves was much lower than the yield from the exudates. However, higher percentages of the powder from the water extraction contained SPhMs (between 80 and 92.7%). The content of powder in leaf exudates from pruned leaves was much higher because the SPhMs were squeezed out from the cells and tissues. However, the percentages of SPhMs in this powder were much lower (between 39 and 62%). |
英文关键词 | Aloe arborescens secondary phenol metabolites (SPhMs) leaf exudates leaf water extract medicinal and cosmetic plants food supplements |
类型 | Article |
语种 | 英语 |
国家 | Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000259127500006 |
WOS关键词 | PERIPHERAL DEFENSE STRATEGY ; BARBALOIN CONTENT ; ALOERESIN ; PARTS ; VERA |
WOS类目 | Chemistry, Medicinal ; Pharmacology & Pharmacy |
WOS研究方向 | Pharmacology & Pharmacy |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/158335 |
作者单位 | Ben Gurion Univ Negev, Wyler Dept Dryland Agr, Unit Ecophysiol & Introduct Desert Plants, Jacob Blaustein Inst Desert Res, IL-84990 Sede Boqer, Israel |
推荐引用方式 GB/T 7714 | Gutterman, Yitzchak,Chauser-Volfson, Elena. The content of secondary phenol metabolites in pruned leaves of Aloe arborescens, a comparison between two methods: leaf exudates and leaf water extract[J]. Ben-Gurion University of the Negev,2008,62(4):430-435. |
APA | Gutterman, Yitzchak,&Chauser-Volfson, Elena.(2008).The content of secondary phenol metabolites in pruned leaves of Aloe arborescens, a comparison between two methods: leaf exudates and leaf water extract.JOURNAL OF NATURAL MEDICINES,62(4),430-435. |
MLA | Gutterman, Yitzchak,et al."The content of secondary phenol metabolites in pruned leaves of Aloe arborescens, a comparison between two methods: leaf exudates and leaf water extract".JOURNAL OF NATURAL MEDICINES 62.4(2008):430-435. |
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