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

Prof.Dr.Ir. Arief Widjaja M.Eng.
Setiyo Gunawan S.T., Ph.D
Setiyo Gunawan S.T., Ph.D

Year

2015

Published in

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

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.