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dc.contributor.advisorYu, Lianglien_US
dc.contributor.authorXie, Zhuohongen_US
dc.date.accessioned2013-07-04T05:31:01Z
dc.date.available2013-07-04T05:31:01Z
dc.date.issued2013en_US
dc.identifier.urihttp://hdl.handle.net/1903/14261
dc.description.abstractTo promote its use in nutraceutical and functional food ingredients, jiaogulan (Gynostemma pentaphyllium) of different sources, genotypes and parts of the plant were investigated for their chemical profiles and biological properties. The first part of this research studied five commercial jiaogulan for their phytochemical profiles, and antioxidant, anti-proliferative and anti-inflammatory effects. It was found that individual jiaogulan samples significantly differed in their chemical and biological properties. The second part of this research further investigated phytochemical compositions and biological activities in different genotypes and parts of jiaogulan. The results indicated that different genotypes or plant parts of jiaogulan may have different biological activities. The results led to the third study to develop chromatographic fingerprinting techniques for differentiating genotypes and plant parts of jiaogulan using LC/MS. LC-MS fingerprints combined with PCA were able to differentiate diploid and tetraploid, and the leaf and whole botanical jiaogulan. The results from this research suggest the potential use of selected jiaogulan to improve human health while enhancing food agriculture economy, and indicate that HPLC fingerprinting may be a useful controlling the quality of jiaogulan.en_US
dc.titleNUTRACEUTICAL PROPERTIES OF JIAOGULAN AND HPLC FINGERPRINTING FOR DIFFERENTIATION AND QUALITY CONTROLen_US
dc.typeDissertationen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentFood Scienceen_US
dc.subject.pqcontrolledFood scienceen_US
dc.subject.pqcontrolledNutritionen_US
dc.subject.pqcontrolledAnalytical chemistryen_US
dc.subject.pquncontrolledBioactiveen_US
dc.subject.pquncontrolledFingerprintingen_US
dc.subject.pquncontrolledFunctional Fooden_US
dc.subject.pquncontrolledGynostemma pentaphyllumen_US
dc.subject.pquncontrolledNutraceuticalen_US
dc.subject.pquncontrolledQuality Controlen_US


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