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IJSTR >> Volume 8 - Issue 3, March 2019 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Bioethanol Production From Cassava Peel By Ultrasonic Assisted Using HCl as Catalyst

[Full Text]



Sirajuddin, Bandi Soepratono, Edy Budiarso, Wiwin Suwinarti



bioethanol, cassava peel, catalyst, fermentation, glucose, hydrolysis ultrosonic



Cassava peel is lignocellulose material that has the potential to be processed into alternative fuels is bioethanol. This study aims to determine the concentration of HCl as catalyst, hydrolysis time optimum use of ultrasonic waves to the yield of glucose and determine the optimum fermentation time to convert glucose into ethanol. Hydrolysis process 25 grams of sample was added 150 ml of HCl as catalyst with concentration variations HCl 0.75 N, 1.00 N and 1.25 N, hydrolysis time variation 6, 15, 30, 60 and 90 minutes using an ultrasonic wave frequency at 35 KHz and a temperature of 30⁰C. The resulting hydrolyzate was analyzed using methods luff schrool. The highest yield of fermentable glucose 150 ml using 5 g of yeast and 2 grams of NPK with time variations of 2, 4, 7, 10, 12 days. Destilled.dan fermented then analyzed using Cromatography Gas (GC). The highest glucose yield hydrolysis process is a catalyst concentration of 1.2 N HCl and 30 minutes of 34.59%. While the highest bioethanol yield in the fermentation process is 4 days at 20.77%.



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