Pengaruh Konsentrasi Saccharomyces Cerevisiae Dalam Pembuatan Etanol Dari Limbah Buah Naga Dengan Metode Liquid State Fermentation (LSF)
DOI:
https://doi.org/10.54423/jtk.v7i1.131Keywords:
Bioethanol, dragon fruit, alternative energy, LSF fermentation, Saccharomyces cerevisiaeAbstract
This study aimed to determine the effect of Saccharomyces cerevisiae on the alcohol content derived from dragon fruit waste using the liquid-state fermentation (LSF) method. Dragon fruit waste was selected as the substrate due to its ready availability in Kalimantan and its high carbohydrate content, making it a potential source of alternative energy. To achieve optimal results, varying inoculum concentrations were tested: 0.00 ml, 10 ml, 20 ml, 30 ml, 40 ml, and 50 ml. The resulting ethanol concentrations were 33.34%, 39.53%, 47.85%, 50.47%, 60.93%, and 52.67%, respectively. The results demonstrated that the addition of 40 ml of Saccharomyces cerevisiae yielded the highest alcohol content at 60.93%. These findings confirm that dragon fruit can serve as an eco-friendly and sustainable raw material for bioethanol production, thereby supporting community energy needs through the development of renewable energy based on local resources.
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