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Journal of Biological Sciences

Year: 2002 | Volume: 2 | Issue: 9 | Page No.: 623-625
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Authors

Jumaat H. Adam

Ramlan Omar

C. C. Wilcock

Keywords

Research Article

Phytochemical Screening of Flavonoids in three Hybrids of Nepenthes (Nepenthaceae) and their Putative Parental Species from Sarawak and Sabah

Jumaat H. Adam
School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor De., Malaysia
Ramlan Omar
School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor De., Malaysia
C. C. Wilcock
Department of Plant Science, University of Aberdeen, Scotland
Screening of falvonoids of leaf materials of nine dry herbarium specimens of three natural hybrids and six of their putative parental species collected from Sarawak and Sabah have been carried out. Eight spots containing phenolic acids, flavonols, flavones, leucoanthocyanins and unknown 1 and 3 were identified from the chromatographic profiles. Phenolic acid and ellagic acid, quercetin, kaempferol, unknown 1 and unknown 3 were prevalence: quercetin and kaempferol were present in all taxon except Nepenthes tentaculata and Nepenthes gracilis respectively; phenolic acid was undetected in Nepenthes rajah and Nepenthes muluensis, similarly ellagic acid was not recorded in Nepethes rajah and Nepenthes gracilis. Flavonoids compound termed here as unknown 2 and 3 were equally prevalence in all the taxon screened but they were absent from Nepenthes muluensis and Nepenthes gracilis, Nepenthes burbidgeae, Nepenthes tentaculata and Nepenthes gracilis respectively. Luteolin was found in Nepenthes rajah and Nepenthes muluensis and hybrids Nepenthes x Alisaputriana and Nepenthes x Sarawakiensis only whereas cyanidin was detected in Nepenthes rajah, Nepenthes mirabilis and Nepenthes gracilis and hybrids Nepenthes x Alisaputriana and Nepenthes x Ghazallyiana. Myricetin and apigenin were absent in all these taxon studied. Chromatographic patterns of the three hybrids studied showed complementation of their putative parental species.
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