Setiyo Gunawan : Study of The Preparation Of Sugar From High-Lignin Lignocellulose Applying Subcritical Water And Enzymatic Hydrolysis: Synthesis And Consumable Cost Evaluation

Setiyo Gunawan S.T., Ph.D

Year

2015

Published in

Scientific Study Research. Chemistry Chemical Engineering, Biotechnology, Food Industry, 2015, 1

Authors

External link

Type

Jurnal Internasional

Keywords

cellulose, cellulase, coconut coir dust, hemicellulose, lignin, reducing sugar


Abstract

This study concern sugars hydrolyzed from the high-lignin coconut coir dust using moderate subcritical water (SCW) hydrolysis at pressures 20-40 bar for 1 h and to evaluate the consumable costs driver generated. The SCW method produced two products, sugar liquid and solid (SCW-treated substrate). The solid was proceeded to prepare the sugar via enzymatic hydrolysis using pure cellulase. Yield of sugar hydrolyzed from lignocellulose by SCW technique was 0.25 gram sugar/gram cellulose +hemicellulose, or 0.09-gram sugar/gram lignocellulose at 160 C and 40 bar. While, the maximum yield of sugar liberated enzymatically from SCW-treated solid was 0.35-gram sugar/gram cellulose+hemicellulose, or 0.13-gram sugar/gram SCW-treated solid. It was found that carbon dioxide gas was the highest cost driving in SCW hydrolysis.