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Studies on erechtites valenrianifolia (compositae)

A study on the crude extracts of Erechtites valerianifolia extracted first by hexane followed by chloroform and finally by ethanol was carried out. Thin layer chromatography (TLC) analysis of the crude extracts reveals the presence of a visible bright yellow spot which may indicate the presence of f...

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Main Author: Tan,, Martin.
Format: E-LPTA
Language:English
Published: Universiti Malaysia Sarawak, (UNIMAS) 2006
Subjects:
QD Chemistry
QK Botany
SB Plant culture
Online Access:http://ir.unimas.my/id/eprint/19534/2/Studies%20on%20erechtites%20valerianifolia...%20%28fulltext%29.pdf
http://ir.unimas.my/id/eprint/19534/
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spelling my.unimas.ir.195342019-08-01T01:41:18Z http://ir.unimas.my/id/eprint/19534/ Studies on erechtites valenrianifolia (compositae) Tan,, Martin. QD Chemistry QK Botany SB Plant culture A study on the crude extracts of Erechtites valerianifolia extracted first by hexane followed by chloroform and finally by ethanol was carried out. Thin layer chromatography (TLC) analysis of the crude extracts reveals the presence of a visible bright yellow spot which may indicate the presence of flavanoid compounds. Flavanoid detection from a previous study confirms this. The hexane extract was subjected to column chromatography and six fractions with similar occurrence of spots on TLC were obtained. Infrared spectroscopy was carried out on all the crudc extracts and fractions revealing the presence of similar transmission patterns which corresponds to the assignments of carbonyl, hydroxyl, CH and C=C which further supports the presence of flavanoid compounds. Cytotoxicity test on the crude extracts reveal that only the ethanol extracts yields cytotoxicity. Universiti Malaysia Sarawak, (UNIMAS) 2006 E-LPTA NonPeerReviewed text en http://ir.unimas.my/id/eprint/19534/2/Studies%20on%20erechtites%20valerianifolia...%20%28fulltext%29.pdf Tan,, Martin. (2006) Studies on erechtites valenrianifolia (compositae). [E-LPTA] (Unpublished)
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QD Chemistry
QK Botany
SB Plant culture
spellingShingle QD Chemistry
QK Botany
SB Plant culture
Tan,, Martin.
Studies on erechtites valenrianifolia (compositae)
description A study on the crude extracts of Erechtites valerianifolia extracted first by hexane followed by chloroform and finally by ethanol was carried out. Thin layer chromatography (TLC) analysis of the crude extracts reveals the presence of a visible bright yellow spot which may indicate the presence of flavanoid compounds. Flavanoid detection from a previous study confirms this. The hexane extract was subjected to column chromatography and six fractions with similar occurrence of spots on TLC were obtained. Infrared spectroscopy was carried out on all the crudc extracts and fractions revealing the presence of similar transmission patterns which corresponds to the assignments of carbonyl, hydroxyl, CH and C=C which further supports the presence of flavanoid compounds. Cytotoxicity test on the crude extracts reveal that only the ethanol extracts yields cytotoxicity.
format E-LPTA
author Tan,, Martin.
author_facet Tan,, Martin.
author_sort Tan,, Martin.
title Studies on erechtites valenrianifolia (compositae)
title_short Studies on erechtites valenrianifolia (compositae)
title_full Studies on erechtites valenrianifolia (compositae)
title_fullStr Studies on erechtites valenrianifolia (compositae)
title_full_unstemmed Studies on erechtites valenrianifolia (compositae)
title_sort studies on erechtites valenrianifolia (compositae)
publisher Universiti Malaysia Sarawak, (UNIMAS)
publishDate 2006
url http://ir.unimas.my/id/eprint/19534/2/Studies%20on%20erechtites%20valerianifolia...%20%28fulltext%29.pdf
http://ir.unimas.my/id/eprint/19534/
_version_ 1644513065547333632
score 13.160551

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