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Journal of Mathematical and Fundamental Sciences
Published by Institut Teknologi Bandung
ISSN : 23375760     EISSN : 23385510     DOI : https://doi.org/10.5614/j.math.fund.sci.
Core Subject : Science, Education,
Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics
Journal of Mathematical and Fundamental Sciences welcomes full research articles in the area of Mathematics and Natural Sciences from the following subject areas: Astronomy, Chemistry, Earth Sciences (Geodesy, Geology, Geophysics, Oceanography, Meteorology), Life Sciences (Agriculture, Biochemistry, Biology, Health, Medical, Pharmacy), Mathematics, Physics, and Statistics.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Vol. 27 No. 3 (1994)" : 2 Documents clear
Ilmu Kimia Tumbuhan Lauraceae Indonesia : XI. Alkaloid Aporfin dan Oksoaporfin dari Litsea excelsa. Euis Holisotan Hakim; Sjamsul Arifin Achmad; Buchari Buchari; Sidharta Pramutadi
Journal of Mathematical and Fundamental Sciences Vol. 27 No. 3 (1994)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

The first chemical investigation on Litsea excelsa had been carried out in our laboratories. Three alkaloids had been isolated in this investigation, namely dicentrinone (I), nordicentrine (II), and norpredicentrine(III), and their identities were established through UV, 1H-NMR, 13C-NMR, and mass spectral evidence. Based on the co-occurrence of these three alkaloids in the single plant, a biogenetic oxidative sequence of these compounds may be proposed. This work will be of value for chemotaxonomy of the genus Litsea in particular, the Lauraceae in general. Penyelidikan kimia telah dilakukan untuk pertama kalinya terhadap tumbuhan Litsea excels. Tiga alkaloid telah ditemukan pada penyelidikan ini, yakni disentrinon (I), nordisentrin (II), dan norpredisentrin (III). Identitas ketiga senyawa ini ditetapkan berdasarkan data spektroskopi UV, 1H-NMR, 13C-NMR, dan spectrum massa. Dengan ditemukannya ketiga alkaloid secara bersama-sama dalam satu spesies tumbuhan ini, maka tahap oksidasi biogenesis ketiga senyawa dapat disarankan. Hasil penelitian ini berguna untuk kemotaksonomi genus Litsea khususnya, famili Lauraceae umumnya. 
Ilmu Kimia Tumbuhan Lauraceae Indonesia: X. Alkaloid Benzilisokuinolin Dari Litsea cassiaefolia Euis Holisotan Hakim; Sjamsul Arifin Achmad; Buchari Buchari; Sidharta Pramutadi
Journal of Mathematical and Fundamental Sciences Vol. 27 No. 3 (1994)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

Penyelidikan kimia telah dilakukan untuk pertama kalinya terhadap tumbuhan Litsea cassiaefolia. Pada penyelidikan ini, melalui kombinasi kromatografi partisi dan cara pemisahan yang lazim, tiga alkaloid telah ditemukan, yakni disentrin (I), dehidrodisentrin (II), dan disentrinon (III), masing-masing termasuk alkaloid benzilisokuinolin jenis aporfin, dehidroaporfin, dan oksoaporfin. Karakterisasi ketiga alkaloid tersebut dilakukan berdasarkan data spektroskopi UV, 1H-NMR, 13C-NMR, dan massa. Di antara ketiga senyawa tersebut, disentrin (I) merupakan alkaloid utama yang ditemukan dengan kadar yang cukup tinggi; oleh karena itu, sifat biologi senyawa ini diselidiki lebih lanjut. Ditemukannya ketiga alkaloid dalam tumbuhan ini sangat berguna sebagai dasar kajian kemotaksonomi. The first chemical study on Litsea cassiaefolia had been carried out in our laboratory. In this investigation, by combination of partition chromatography and common separation methods, three alkaloids had been isolated, namely dicentrine (I), dehydrodicentrine (II), and dicentrinone (III), which belong to benzylisoquinoline alkaloids of the types aporphine, dehydroaporphine, and oxoaporphine, respectively. The characterization of the alkaloids had been based upon the UV, 1H-NMR, 13C-NMR and mass spectroscopic evidence. Among these compounds, dicentrine (I) is the major alkaloid which may be isolated in relatively higher yield, thus, the biological property of this compound is being further investigated. Finding the alkaloids in this plant is beneficial as a basis for chemotaxonomy. 

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