期刊
JOURNAL OF FUNCTIONAL FOODS
卷 5, 期 4, 页码 1892-1899出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jff.2013.09.010
关键词
Moringa oleifera; LC/UV/MSD; Flavonoid; Anti-inflammation; Acid hydrolysis; Thermal stability
资金
- National Institute of Health
- National Botanical Center for Age-Related Diseases
- Purdue University and University of Alabama [NIH-OD-00-04]
- Office of Economic Growth, Agriculture and Trade (EGAT/AG) of the USAID [AEG-A-00-04-00012-00]
- Food and Industry in Natural Products (PFID/NP) project
- USAID Regional Center for Southern Africa
- New Jersey Agriculture Experiment Station
- Rutgers New Use Agriculture
- Natural Plant Products Program
Moringa oleifera is an important multipurpose tropical tree under-recognized for its nutritional and medicinal properties. Leaves of moringa collected from sub-Sahara Africa were analyzed for phenolic components by HPLC-UV-MS. Twelve flavonoids were identified, including quercetin and kaempferol glucosides and glucoside malonates as major constituents. To facilitate quantitative analysis, acid hydrolysis during extraction of moringa samples was employed to convert the conjugates into their respective flavonoid aglycones, allowing accurate quantitation of total flavonoids as aglycones. Validation of the method demonstrated recoveries ranging from 92.6% to 107.5% for the two analytes. Using this method, total flavonoids from moringa collected from Ghana, Senegal and Zambia were determined and their content ranged from 0.18% to 1.64% (g/dry weight) across the respective environment or country of production and by variety. Moringa was found to exhibit anti-inflammatory activity of constituents-rich varieties. As flavonoid malonates are among the major constituents in the original plant material, a study examining thermal stability of flavonoid malonyl derivatives showed that these compounds were not thermally stable and easily cleaved to yield their respective flavonoid glycosides. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据