Hamad, A., Dwi Nugraheni, Sari, B.W. and Naveed, M. 2023. Decaffeination of Coffee Bean Using Fermentation Process: Effect of Starter Concentration and Varieties on The Reduction of Caffeine and Antioxidant Activity. Research in Chemical Engineering. 2, 2 (Nov. 2023), 57–62. DOI:https://doi.org/10.30595/rice.v2i2.85.