Phytochemical Study of Nepenthes Species from Sarawak and Sabah.
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THE SARAWAK MUSEUM JOURNAL |
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Title :
Phytochemical Study of Nepenthes Species from Sarawak and Sabah. |
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Author :
Jumaat H. Adam and Ramlan bin Omar |
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Abstract:
Leaf materials of thirty five dry herbarium specimens representing twenty species and one subspecies of Nepenthes from Sarawak and Sabah were screened for the presence of flavonoids. A total of twelve chromatographic spots containing phenolic acids, flavonols, fiavones and leucoanthocyanins were identified. Phenolic acid and ellagic acid were prevalence and present in fifteen and eighteen of the twenty species screened; the presence of phenolic acid and ellagic acid were found variable in six and two species respectively. Flavonols myricetin was absent in all the species studied; on the other hand quercetin was present in all species except Nepenthes hirsuta and kaempferol was recorded in all species except Nepenthes gracilis, Nepenthes ampullaria and Nepenthes hursuta. Falvones luteolin was detected in Nepenthes kinabaluensis, Nepenthes lowii, Nepenthes curtisii zakriana, Nepenthes rajah, Nepenthes macrovulgaris, Nepenthes muluensis. Nepenthes reinwardtiana. Nepenthes tentaculata and Nepenthes villosa but apigenin was totally absent from all the species screened. Cyanidin and malvidin were two commonest leucoanthocyanins, detected in fourteen and ten species of the twenty species studied respectively.
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| DOI: XXXX |
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How to cite:
Jumaat H. Adam and Ramlan bin Omar. (2001). Phytochemical Study of Nepenthes Species from Sarawak and Sabah. The Sarawak Museum Journal, LVI (77): 275-286 |
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References
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