| Chemical compositions andantioxidant activities of water extract of Chinese propolis. | |
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MedLine Citation:
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PMID: 22026502 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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In the present study, we have investigated the chemical composition and antioxidant activity of water extract of propolis (WEP) collected from 26 locations in China. Spectrophotometry was used to determine the physico-chemical properties and the chemical constituents of WEP. Phenolic compounds in WEP were identified by RP-HPLC-DAD with reference standards. The antioxidant activities [characterized by reducing power and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging ability] of WEP were also measured. Results show that epicatechin, p-coumaric acid, morin, 3,4-dimethoxycinnamic acid, naringenin, ferulic acid, cinnamic acid, pinocembrin and chrysin are the major functional phenolic compounds in Chinese WEPs. Furthermore, most WEPs show strong antioxidant activities, which are significantly correlated with , an index for estimation of the quality of WEP. WEPs also contain many more active constituents than that of ethanol extracts of propolis. |
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Authors:
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Xia-Li Guo; Bin Chen; Luo Liping; Xi Zhang; Xi-Mo Dai; Shang-Ji Gong |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-25 |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: - ISSN: 1520-5118 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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