BIOETHANOL SYNTHESIS FROM POTATO (SALANUM TUBEROSUM) PEELS
Abstract
This research focused on the Bioethanol synthesis from potato peels, aiming to utilize this agricultural byproduct through an integrated process of acid pretreatment, hydrolysis, fermentation and distillation. The study outlines a systematic approach to converting potato peels into ethyl alcohol. In this work, potato peels were initially subjected to autoclaving at 121 ℃ to enhance the breakdown of complex carbohydrate. Sulphuric acid (H2SO4) was employed to catalyze the decomposition, followed by neutralization with 4g of NaOH. The fermentation process, utilizing Baker’s yeast (Saccharomyces cerevisiae) over five days, successfully converted these sugars into ethyl alcohol. The analysis revealed that the produced ethyl alcohol has a viscosity of 1.35cP at 30 ℃, and alcohol content of 4 %, a density of 0.915 ℃, a cloud point of 11 ℃, a flash point of 82 ℃, a pour point of -2 ℃, a boiling point of 91 ℃, and a calorific value of 12,180kj. The proximate analysis of the potato peels showed a moisture content of 73.1 %, ash content of 2.75 %, nitrogen content of 1.2 ℃, volatile matter of 22.07 % and carbon content of 40.8 %. The ethyl alcohol also underwent Fourier Transform Infrared Spectroscopy (FTIR) analysis. This study demonstrates the potential of potato peels as a viable feedtock for ethanol production, offering a sustainable approach to waste management and renewable energy generation
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