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趙南奭,閔斗植 충북대학교 농업과학기술연구소 1991 農業科學硏究 Vol.9 No.1
Cellulosic biomass is potentially a major source of raw material for chemicals, food, and fuel in the future. There is a variety of waste cellulosic materials to be expected for many useful products. In Korea, approximately 4.03 million tons of paper and paper products are produced annually, and about 39% of those are finally discarded and incinerated. The aim of this study is to investigate the susceptibility of various waste paper resources to enzymatic saccharification with cellulase. Various grades papers, such as writing papers, paper boards and tissues, are tested. Their hydrolysis rates are ranged from 13.6% to 77.9%. Papers essentially consisting of high grade chemical pulps show the excellant hydrolysis rates due to their lower lignin contents. Newsprint shows very low saccharification rate because of its high groundwood including much lignin. Also activity of cellulase enzyme greatly affected to the saccharification. Concerning recycling and reutilization of cellulase enzyme, an improved almost quantitative recycle process of cellulase was discussed.