The Isolation and Identification of the Anthocyanin in the Leaves of Oxalis Ortgiessi

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Show simple item record Lehman, Charles Louis 2010-01-06T19:48:00Z 2010-01-06T19:48:00Z 1973-09
dc.identifier.other 1973 .L528
dc.description 24 leaves. en_US
dc.description.abstract The problem. The purpose of the present investigation was to isolate and identify the anthocyanin in the leaves of Oxalis ortgiessi. Procedure. The leaves were extracted in 1% HCl in methanol for 24 hours. This extract was concentrated in vacuo and then streaked on 3 mm Whatman chromatography paper. The chromatogram was developed by ascending chromatography in 1% HCl. After separation the band was cut out and eluted in 0.01% HCl in methanol. These solutions were reduced in volume under vacuum and absorption spectrum determined. The purified elute was spotted on Whatman No. 1 and the Rf values of the pigment determined in four different solvent systems. Acid and alkaline hydrolysis was carried out to identify the aglycone, glycosides and organic acid. Findings. The anthocyanin of the leaves of Oxalis ortgiessi was identified as malvidin-3-rhamnoglucoside-5-glucoside from the Rf values, spectral maxima and color observations. Conclusion. The anthocyanin of the leaves of Oxalis ortgiessi probably could not be used to aid in taxonomic work because the species is an ornamental plant developed for the color of the leaves. Recommendations. Further studies of the flower pigments of Oxalis ortgiessi is needed to see if there are any relationships between leaf and flower pigments. Isloation and identification of pigments in other species in the Oxalidaceae family needs to be done to aid in taxonomic study of this group to show relationships. en_US
dc.language.iso en_US en_US
dc.publisher Drake University en_US
dc.relation.ispartofseries Drake University, School of Graduate Studies;1973
dc.subject Anthocyanins en_US
dc.subject Leaves--Color en_US
dc.subject Oxalidaceae en_US
dc.subject Plant pigments en_US
dc.title The Isolation and Identification of the Anthocyanin in the Leaves of Oxalis Ortgiessi en_US
dc.type Thesis en_US

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