Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)

In this study the components of aerial and subterranean parts of Melaleuca cajuputi were isolated and identified. Chemical investigation on the leaves resulted in the isolation of two known triterpenoids, betulinic acid and u rsolic acid ester. The oily fractions contained two phenolic components...

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Main Author:	Ul Hassan, Vaqar
Format:	Thesis
Language:	English English
Published:	1996
Subjects:	Melaleuca quinquenervia Spectrum analysis.
Online Access:	http://psasir.upm.edu.my/id/eprint/8609/1/FSAS_1996_8_A.pdf
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id	my-upm-ir.8609
record_format	uketd_dc
spelling	my-upm-ir.86092012-06-11T07:35:55Z Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea) 1996 Ul Hassan, Vaqar In this study the components of aerial and subterranean parts of Melaleuca cajuputi were isolated and identified. Chemical investigation on the leaves resulted in the isolation of two known triterpenoids, betulinic acid and u rsolic acid ester. The oily fractions contained two phenolic components, a naphthalene dione, an anthracene carboxal-dehyde and a phenenthracene analogy. Methanol extracts of the bark, seeds, and flowers allowed for the isolation and identification of betulinic acid, urolic acid and betuline, respectively. Their structures were determined using m odern spectroscopic techniques such as IR, NMR, MS and by comparison with literature.The bioassay was carried out on crude extracts of leaves, roots, seeds, and bark against first in star mosquito larvae (Aedes albopictus) according to the procedure described in the literature. These extracts were found to be acute or relatively toxic to the target organisms. Extract from leaves exhibited the highest toxicity followed by extracts from roots, seeds, and bark respectively. Melaleuca quinquenervia. Spectrum analysis. 1996 Thesis http://psasir.upm.edu.my/id/eprint/8609/ http://psasir.upm.edu.my/id/eprint/8609/1/FSAS_1996_8_A.pdf application/pdf en public masters Universiti Pertanian Malaysia Melaleuca quinquenervia. Spectrum analysis. Faculty of Environmental Studies English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Melaleuca quinquenervia Spectrum analysis.
spellingShingle	Melaleuca quinquenervia Spectrum analysis. Ul Hassan, Vaqar Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)
description	In this study the components of aerial and subterranean parts of Melaleuca cajuputi were isolated and identified. Chemical investigation on the leaves resulted in the isolation of two known triterpenoids, betulinic acid and u rsolic acid ester. The oily fractions contained two phenolic components, a naphthalene dione, an anthracene carboxal-dehyde and a phenenthracene analogy. Methanol extracts of the bark, seeds, and flowers allowed for the isolation and identification of betulinic acid, urolic acid and betuline, respectively. Their structures were determined using m odern spectroscopic techniques such as IR, NMR, MS and by comparison with literature.The bioassay was carried out on crude extracts of leaves, roots, seeds, and bark against first in star mosquito larvae (Aedes albopictus) according to the procedure described in the literature. These extracts were found to be acute or relatively toxic to the target organisms. Extract from leaves exhibited the highest toxicity followed by extracts from roots, seeds, and bark respectively.
format	Thesis
qualification_level	Master's degree
author	Ul Hassan, Vaqar
author_facet	Ul Hassan, Vaqar
author_sort	Ul Hassan, Vaqar
title	Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)
title_short	Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)
title_full	Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)
title_fullStr	Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)
title_full_unstemmed	Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)
title_sort	isolation, identification and bioactivity of natural products from melaleuca cajuputi (myrtacea)
granting_institution	Universiti Pertanian Malaysia
granting_department	Faculty of Environmental Studies
publishDate	1996
url	http://psasir.upm.edu.my/id/eprint/8609/1/FSAS_1996_8_A.pdf
_version_	1747810838183411712

Isolation, Identification and Bioactivity of Natural Products from Melaleuca Cajuputi (Myrtacea)

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