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dc.contributor.authorHe, Ningzh_CN
dc.contributor.author何宁zh_CN
dc.contributor.authorWang, Zhiyuanzh_CN
dc.contributor.authorYang, Cuixianzh_CN
dc.contributor.authorLu, Yinghuazh_CN
dc.contributor.authorSun, Daohuazh_CN
dc.contributor.author孙道华zh_CN
dc.contributor.authorWang, Yuanpengzh_CN
dc.contributor.authorShao, Wenyaozh_CN
dc.contributor.authorLi, Qingbiaozh_CN
dc.contributor.author李清彪
dc.date.accessioned2011-04-26T08:03:03Z
dc.date.available2011-04-26T08:03:03Z
dc.date.issued2009-10zh_CN
dc.identifier.citationSEPARATION AND PURIFICATION TECHNOLOGY,2009,70(2):219-224zh_CN
dc.identifier.issn1383-5866zh_CN
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.seppur.2009.09.019zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/2032
dc.description.abstractThe phenol contents and the antioxidant activities of 12 Chinese longan cultivars were studied. The polyphenols of longan pericarp and seed demonstrated significantly higher antioxidant capacities than did the pulp. The ferric reducing antioxidant powers of longan fruits were closely correlated with the polyphenol contents (r(2) = 0.8609, p < 0.001, n = 36). 52.9 mg g(-1) (dry matter) polyphenols were extracted from the pericarp of cultivar Wulongling fruit with acetone aqueous along with ultrasonic treatment. Further fractionation was performed by Sephadex LH-20 chromatography. The results suggested that gallic acid (GA) and ellagic acid (EA) were not the major contributors to the antioxidant activity of longan pericarp. 15 other phenolic profiles in longan pericarp along with a number of unknown structures were revealed with high-performance liquid chromatography coupled with electrospray ionization mass spectrometry (HPLC-ESI-MS) analysis. The rich array of phenolic compounds of several different types in longan pericarp extract might form a synergistic multilevel defence system against oxidation. (C) 2009 Elsevier B.V. All rights reserved.zh_CN
dc.description.sponsorshipNational Natural Science Foundation of China [30700020]; Science and Technology Program of Fujian Province, China [2008Y0060]zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCIENCE BVzh_CN
dc.subjectLongan pericarpzh_CN
dc.subjectPolyphenolzh_CN
dc.subjectIsolationzh_CN
dc.subjectAntioxidant activityzh_CN
dc.titleIsolation and identification of polyphenolic compounds in longan pericarpzh_CN
dc.typeArticlezh_CN


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