Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities
Investigation of the leaf and tvig sex tracts of Glycosm is calcicola (Rutaceae) from two different locations has led to the isolation of five compounds. The structures of the secompounds were elucidated by means of spectroscopic methods(IR, uv, ¹H-NMR, ¹³C- NMR, MS)and by comparison with previ...
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1995
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my-upm-ir.85992018-10-26T17:14:56Z Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities 1995 Chew, Yean Ling Investigation of the leaf and tvig sex tracts of Glycosm is calcicola (Rutaceae) from two different locations has led to the isolation of five compounds. The structures of the secompounds were elucidated by means of spectroscopic methods(IR, uv, ¹H-NMR, ¹³C- NMR, MS)and by comparison with previous studies. G. calcicola collected from Langk aviIsl and yielded ethyl gerambullin Isitosterol and another unidentified compound .From another separate collection of the same plant from Templer Park, a new alkaloid (desmethoxyzanthophylline)and f1indersine have also been isolated. A similar study on the bark of another species, G. rupestris, collected from Langkawi Island afforded methoxyglycomaurin), a new alkaloid (7-glycomaurin, des-Nmethylacronycine and stigmast-7-enol, while the leaves of the plant gave an unidentified compound. The antifungal activities of these plant extracts were evaluated using the poison food and spore germination techniques. The plant extracts exhibited varying degree of fungitoxic response on the growth of the fungal pathogens of chilli (Capsicum annuum L.). The chloroform extract of G. calcicola collected from Templer Park has been shown to be most effective in inhibiting the mycelial growth, sporulation and spore germination of Chaonephora cucurbi tarium, Col1etotrichum capsici and C. gloeosporioides. The antifungal compounds in this extract were identified using TLC bioassay technique against Aspergillus flavus. The results indicated that the activity of the extract is due to the presence of its major components: flindersine and desmethoxyzanthophylline. Rutaceae Chemical elements 1995 Thesis http://psasir.upm.edu.my/id/eprint/8599/ http://psasir.upm.edu.my/id/eprint/8599/1/FSAS_1995_7_A.pdf application/pdf en public masters Universiti Pertanian Malaysia Rutaceae Chemical elements Faculty of Environmental Studies English |
| institution |
Universiti Putra Malaysia |
| collection |
PSAS Institutional Repository |
| language |
English English |
| topic |
Rutaceae Chemical elements |
| spellingShingle |
Rutaceae Chemical elements Chew, Yean Ling Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities |
| description |
Investigation of the leaf and tvig sex tracts of
Glycosm is calcicola (Rutaceae) from two different
locations has led to the isolation of five compounds.
The structures of the secompounds were elucidated by
means of spectroscopic methods(IR, uv, ¹H-NMR, ¹³C-
NMR, MS)and by comparison with previous studies.
G. calcicola collected from Langk aviIsl and
yielded ethyl gerambullin Isitosterol and another
unidentified compound .From another separate collection of the same plant from Templer Park, a new
alkaloid (desmethoxyzanthophylline)and f1indersine
have also been isolated. A similar study on the bark
of another species, G. rupestris, collected from
Langkawi Island afforded
methoxyglycomaurin),
a new alkaloid (7-glycomaurin, des-Nmethylacronycine
and stigmast-7-enol, while the leaves
of the plant gave an unidentified compound.
The antifungal activities of these plant extracts
were evaluated using the poison food and spore
germination techniques. The plant extracts exhibited
varying degree of fungitoxic response on the growth of
the fungal pathogens of chilli (Capsicum annuum L.).
The chloroform extract of G. calcicola collected from
Templer Park has been shown to be most effective in
inhibiting the mycelial growth, sporulation and spore
germination of Chaonephora cucurbi tarium,
Col1etotrichum capsici and C. gloeosporioides. The antifungal compounds in this extract were
identified using TLC bioassay technique against
Aspergillus flavus. The results indicated that the
activity of the extract is due to the presence of its
major components: flindersine and
desmethoxyzanthophylline. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Chew, Yean Ling |
| author_facet |
Chew, Yean Ling |
| author_sort |
Chew, Yean Ling |
| title |
Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities |
| title_short |
Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities |
| title_full |
Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities |
| title_fullStr |
Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities |
| title_full_unstemmed |
Chemical Constituents of Glycosmis Calcicola and G. Rupestris (Rutaceae) and Their Biological Activities |
| title_sort |
chemical constituents of glycosmis calcicola and g. rupestris (rutaceae) and their biological activities |
| granting_institution |
Universiti Pertanian Malaysia |
| granting_department |
Faculty of Environmental Studies |
| publishDate |
1995 |
| url |
http://psasir.upm.edu.my/id/eprint/8599/1/FSAS_1995_7_A.pdf |
| _version_ |
1747810835749666816 |