pelarut/sampel, dan masa ekstraksi terhadap hasil kafein. Persiapan sampel dilakukan dengan mengisar dan menapis, diikuti oleh ekstraksi pepejal-cair. EFEKTIVITAS PELARUT PADA EKSTRAKSI DAN PENENTUAN KAFEIN DALAM MINUMAN RINGAN KHAS DAERAH MENGGUNAKAN. ANALISIS KUALITATIF KAFEIN PADA EKSTRAK TERPURIFIKASI DARI BIJI KAKAO (Theobroma cacao) SECARA KROMATOGRAFI LAPIS TIPIS ASAL.

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In conclusion, Robusta and Arabica coffee extracts have inhibitory effects on L. The data resulted was processed using Response Surface Methodology to obtain mathematical model and optimum operating condition.

Jurnal Kedokteran Brawijaya, ; 26 4: Jurnal e-gigi ; 1 1: Collections DT – Agriculture Technology []. Kwfein Epidemiology ; 17 5: However high caffeine content in coffee beans may cause health problems to consumers who are susceptible to caffeine.

Coffee decaffeination was processed using vertical single column reactor. Development of mathematical model for robusta coffee decaffeination process in a single column reactor.

Jurnal Kimia Dasar

This research was focused on production of low caffeine content tea using extraction with ethyl acetate as solvent. Antimicrobial activity of 10 different plant polyphenols against bacteria causing food borne disease.

Email this article Login required. Metadata Show full item record. In the first step of decaffeination process, coffee beans was steamed during 1. Antibacterial ability of arabica Coffea arabica and robusta Coffea canephora coffee extract on Lactobacillus acidophilus. The specific objectives of kadein research were to study process characteristic of Robusta coffee decaffeination in single column reactor using acetic acid as solvent, to develop mathematical model for eksfraksi decaffeination time with leaching method, and to optimize process decaffeination of robusta coffee using developed model.


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Abstract Tea is one of the most popular beverages having a great beneficial effect on human health. Specifically, this research was conducted in order to study the effect of temperature and time on reduction of caffeine content to obtain optimum condition of production of low caffeine content tea, to carried out organoleptic test to check the flavor of low caffeine content tea, and to make a mathematical modeling for extraction of caffeine from tea.

The developed mathematical model can be used in designing single column reactor for coffee decaffeination process, to predict decaffeination time and rate, and decaffeination process in optimum condition using acetic acid, effluent of fermented cocoa beans, and tertiary solution of fermented cocoa pulp.

Robusta coffee bean extract, nevertheless, has better inhibitory effects than Arabica coffee bean extract.


Namboodiripad A, Kori S. Jurnal Teknologi Kimia dan Industri ; 2 3: Bioactive Micronutrient in coffee: Iafein simple mathematic model for caffeine kinetic description during the extraction process leaching of coffee bean was developed. A non-steady diffusion equation coupled with a macroscopic mass transfer equation for solvent was developed and then solved analytically.


J Conserv Dent ; 12 1: Some features of this site may not work without it.

Berta Yuda Sisilia Putri | University of Jember –

This research was an laboratory experimental research. Article Tools Print this article. Response Surface Methodology RSM showed that optimum condition for coffee beans decaffeination was 0. Efek Antibakteri ekstrak daun mimba Azadirachta indica A.

Coffee bean containing caffeine, phenolic, trigonelline, and chlorogenic acid is reported to have antimicrobial activity. J Agric Food Chem ; 54 Fitrianti D, Noorhamdani, Setyawati S. Influence of Apigenin on gtf gene expression in Streptococcus mutans UA Ekstraksi kafein dari dalam biji kopi. Penurunan kadar kafein dan asam total pada biji iafein robusta menggunakan teknologi fermentasi anaerob fakultatif dengan mikroba nopkor MZ The general objective of this research was to optimize akfein process of robusta coffee in single column reactor with leaching method.