PEMBUATAN BIOETANOL DARI LIMBAH AMPAS NIPAH (Nypa fruticans) MENGGUNAKAN VARIASI PADA METODE HIDROLISIS

Abstract

Nipa waste from the nira harvest is a fibrous waste that is not further processed by the people of Sabak Auh Village, Siak, even though it has the potential to be used as a product. It has high economic value. The potential content in nipa is lignin, which can be transformed to produce bioethanol. It is is an alternative material as a substitute or mixture of petroleum. Bioethanol was produced in several stages including sample preparation, pretreatment, hydrolysis, fermentation and purification by distillation. The purpose of this study was to compare the variations used in the hydrolysis process enzymatic and acid in producing high concentration bioethanol. Hydrolysis process using white rot fungus extract (enzyme) and 1.5 N HCl solution (acid) as a hydrolysing agent. The fermentation stage was used Saccharomyces cerevisiae yeast to convert glucose into bioethanol. Based on the results of the research, the hydrolysis process using enzymes was better variation of hydrolysis in producing bioethanol rather than acid. The highest concentration was 11.81%, while bioethanol produced from the acid hydrolysis process had a concentration of 3.71%.