THE ISOLATION-PURIFICATION OF CAFFEINE USING TWO COMMON METHODS

Tjie , Kok (2012) THE ISOLATION-PURIFICATION OF CAFFEINE USING TWO COMMON METHODS. Jurnal Ilmiah Sains & Teknologi, 5 (2). p. 75. ISSN 0216-1540

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Abstract

The aim of this research was to compare which of the two methods: soxhletation-sublimation orrefluxrecrystallization with two solvents, more efficient to isolate and purify caffeine form coffea Arabica bean powder. The first method was performed using soxhlet apparatus for continuous solid-liquid extraction followed by sublimation, while the second method was done using reflux with round-bottom flask, followed by recrystallization with two solvents -acetone and petroleum ether. Identification of isolated substance was conducted by thin layer chromatography (TLC) and Fourier transform- infrared spectrophotometry (FTIR) methods. From the results of this research it could be concluded thar soxhletation-sublimation method was more efficient to isolate and purify caffeine from coffea Arabica bean powder than reflux-recrystallization with two solvents.

Item Type: Article
Uncontrolled Keywords: Caffeine, coFfea Arabica bean, soxhlet-sublimation, reflux-recrystallization, TLC, ITlR.
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Technobiology > Department of Biology
Depositing User: Eko Setiawan 194014
Date Deposited: 27 Aug 2014 06:37
Last Modified: 27 Aug 2014 06:37
URI: http://repository.ubaya.ac.id/id/eprint/20373

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