The Decaffeination of Robusta Coffee Beans through Extraction Process with Distilled Wate

Jeanne Dewi Damayanti, Arifah Sukasri, M. Ilham Nurdin


Coffee is one of the popular drinks, consumed by many people in the world. Coffee contains caffeine which has positive and negative effects for human body. The positive effect of caffeine is as an antioxidant in the body. However, if caffeine contents in coffee is too much, it can act as a poison in the body. Therefore, it is necessary to design a process to obtain coffee with a low caffeine that is safe for human body. The decaffeination of robusta coffee beans consisted of the preparation phase of the material, including drying process, the water content analysis, the extraction process with aquadest solvent to take some amount of caffeine contained in coffee powder, and caffeine content analysis before and after extraction processes. This study aims to determine the effect of temperatur (27, 40, 55, 65, 75, and 100oC) and the extraction time (10, 30, 60, 90, and 120 minutes) on the amount of caffeine taken in coffee powder and to obtain the optimal operating conditions that are can be used as a condition for low caffeine coffee production. Based on the results of the study, the highest caffeine extracting conditions was in 20 g of coffee/ 500 mL of solvent was at extraction temperature of 100oC with the amount of caffeine taken at 648,445 mg and the extraction time variable was obtained at 120 minutes extraction time with the amount of caffeine taken at 519,241 mg (extraction temperature 60oC). Initial levels of caffeine before extraction in 20 grams of robusta coffee powder was 664.120 mg. Keywords: Robusta coffee, caffeine, decaffeination

Full Text:




  • There are currently no refbacks.

Copyright (c) 2021 Indonesian Journal of Chemical Technology

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Are you interested in submitting to this journal?

We recommend you to review the About the Journal page for the journal's section policies, as well as the Author Guidelines. Authors need to register with the journal prior to submitting or if already registered, can simply log in and begin the five-step processes

IJCTech will be published in June and December

Indonesian Journal of Chemical Technology is an open access journal published twice a year (June and December) by the Chemical Engineering Department, State Polytechnic of Ujung Pandang, Indonesia

The scopes of IJCTech are chemical process technology, environmental and safety technology, bioprocess technology, food technology, material science, process and control engineering, water and waste water treatment, and management and chemical analysis

IJCTech Journal's Template: (Ukuran file yang diunggah maksimal 700 KB)

Plagiarism Checker

We will use "Plagiarism Checker X" start in Januari 2020 in order to prevent plagiarism for each articles.


IJCTech is indexed by:
Published by: