Arid
DOI10.1007/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; Chauser-Volfson, Elena
通讯作者Gutterman, Yitzchak
来源期刊JOURNAL OF NATURAL MEDICINES
ISSN1340-3443
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
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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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