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All Journal The Journal of Experimental Life Sciences (JELS)
Annisa Aurora Kartika
Universitas Brawijaya, Malang, Indonesia
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

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Journal : The Journal of Experimental Life Sciences (JELS)

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Re-fermentation of Green Liberica Coffee (Coffea Liberica) Beans: Impact on the Caffeine and Antioxidant Content of the Roasted Beans Wenny Bekti Sunarharum; Hindun Riza Umami; Annisa Aurora Kartika; Siska Septiana; Tunjung Mahatmanto
The Journal of Experimental Life Science Vol. 13 No. 2 (2023)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2023.013.02.001

Abstract

Coffee is renowned for its delightful taste and associated health benefits. A growing preference for lower-caffeine coffee is evident, but traditional decaffeination processes can inadvertently deplete vital bioactive compounds like antioxidants. This research explores the effects of re-fermentation on green liberica coffee beans to alter their caffeine and antioxidant levels. The re-fermentation was achieved using water and coffee cherry extract as media, while a control sample without re-fermentation was used for comparison. The study focused on caffeine content and antioxidant activity, measured as IC50. The results show that re-fermentation, whether with water or coffee cherry extract, led to decreased caffeine content and increased antioxidant activity. The re-fermentation process utilizing coffee cherry extract yielded the lowest caffeine content at 0.12% and exhibited the strongest antioxidant activity with an IC50 of 11.00 ± 1.21 ppm. Keywords: Antioxidant, caffeine, green coffee beans, liberica, re-fermentation.
Co-Authors Hindun Riza Umami Siska Septiana Tunjung Mahatmanto Wenny Bekti Sunarharum