International Journal of Chemical and Biochemical Sciences (ISSN 2226-9614)[/vc_column_text][/vc_column][/vc_row]
VOLUME 25(19) (2024)
Kinetics Study of Bioethanol Production from Cassava Peels Waste using Saccharomyces diastaticus
Abdullah1, Nabilla Azzahra Eka P1*
Department of Chemical Engineering, Faculty of Engineering, Diponegoro University Jl. Prof H. Soedarto, SH, Tembalang, Semarang, Indonesia 50275
Abstract
In addition to affecting its supply, the usage of fossil fuels pollutes the environment. A potential remedy for the diminishing supply of fossil fuels is bioethanol. It is possible to make bioethanol from substances that include carbs. In this study, cassava peel waste is the primary component used to make bioethanol. Prior to fermentation, lignin must be reduced as it has the potential to obstruct the production of ethanol. In this study, an alkaline solution in the form of NaOH was used as the chemical pretreatment. Saccharomyces diastaticus is used in this study to aid in the fermentation of bioethanol from leftover cassava peels. Saccharification and fermentation were used concurrently during the fermentation process because they are easy, quick, and affordable. The objectives of this study are to characterize cassava peel flour, investigate kinetics parameters such as Saccharomyces diastaticus growth kinetics, product formation kinetics, and substrate usage kinetics, and determine the impact of substrate variation on ethanol produced. The percentages of substrate that were used were 10%, 15%, and 20% (weight/volume). At 15% (weight/volume) substrate concentration, or 6.172 g/L, the maximum bioethanol concentration was reached. With a maximal specific growth rate of 0.0442 h-1, a product formation coefficient of 0.503, an unfollowed product formation coefficient of 0.005, and a substrate utilization coefficient of 0.005 h-1, the kinetic parameters of yeast growth, substrate consumption, and ethanol production were displayed.
Keywords: Bioethanol, cassava peel waste, kinetic parameters, Saccharomyces diastaticus, SSF.
Full length article – PDF *Corresponding Author, e-mail: nabillazahraekap@gmail.com Doi # https://doi.org/10.62877/106-IJCBS-24-25-19-106