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P28CHEMICAL CONSTITUENTS OF Artocarpusaltilis(Moraceae)S.L. Kai, M. Rahmani*Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPMSerdang, Selangor, MalaysiaCorresponding author: mawardi@science.upm.edu.myArtocarpusaltilis(Parkinson) Fosberg is a species under Moraceae family. Commonlyknown as breadfruit and is believed to be native to a large area extending from theIndo-Malayan Archipelago the Philippines and the Moluccas (Indonesia) throughNew Guinea to Western Micronesia. Genus Artocarpusis an exceptional rich sourceof phenolic compounds such as prenylated and gerany flavonoids based on previousstudies. One known prenylated flavone, artonin E was isolated by columnchromatographic procedure from the ethyl acetate extract of stem bark orange needleshapedcrystals with melting point244 o C. The structure of the compound wascharacterized with various spectroscopy methods including nuclear magneticresonance spectroscopy (NMR), gas chromatograph-mass spectroscopy (GC-MS),infra-red spectroscopy (IR) and ultra-violet visible spectroscopy (UV-Vis).43 |16 th Industrial Chemistry Seminar: Chemistry- A Passport to a Brighter Future
P29PHYTOCHEMISTRY OF Garcinia nitidaJ.H. Kong, G.C.L. Ee*, I. See and S. DaudDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPMSerdang, Selangor, MalaysiaCorresponding author: gwen@science.upm.edu.myGarcinia species mainly grows in the lowland rainforests of the tropical world.Previous chemical studies on Garcinia species have found that the species are rich inbiologically active secondary metabolites such as xanthones, flavanoids, triterpenoidsand coumarins. A number of these compounds have been reported to exhibit anticancer,anti-viral and anti-inflammatory effects. Our present phytochemical study onthe stem bark of Garcinia nitida has led to the isolation of two xanthones,rubraxanthone and osajaxanthone, along with stigmasterol. The pure compounds ofGarcinia nitida were obtained through isolation and purification of the ethyl acetateand methanol extracts. The structural elucidations of these compounds were achievedusing 1D and 2D NMR and MS techniques.44 |16 th Industrial Chemistry Seminar: Chemistry- A Passport to a Brighter Future
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Page 22 and 23: P06 PRELIMINARY STUDY ON NEW AMINO
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Page 64 and 65: P48 OXIDATION OF BENZYL ALCOHOL TOB
Page 66 and 67: P50PRELIMINARY STUDIES OF DEEP EUTE
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Page 70 and 71: P54PREPARATION AND CHARACTERISATION
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