NDLI: The effects of nonionic surfactants on the pretreatment and enzymatic hydrolysis of recycled newspaper

Content Provider	Springer Nature Link
Author	Kim, Hyun Joo Kim, Sung Bae Kim, Chang Joon
Copyright Year	2007
Abstract	The effects of surfactants on the pretreatment and enzymatic hydrolysis stages of recycled newspaper processing were examined. Newspaper substrate was pretreated with surfactants at 40°C and 400 rpm for 1 h, and the enzymatic digestibilities of the pretreated substrate were compared. NP-20 was 10–20% more effective as a surfactant than Tween-20 and Tween-80. To investigate the effects of the surfactants on the subsequent enzymatic hydrolysis stage, the newspaper was pretreated with NP-20 and then hydrolyzed in the presence of TW-20 or TW-80. TW-80 showed an approximate 7% higher digestibility than TW-20. The surfactant effect on the hydrolysis of the untreated newspaper was significant, whereas the surfactant effect on the hydrolysis of the surfactant-pretreated newspaper was marginal. When the digestibilities of the pure cellulose substrates (α-cellulose and filter paper) were examined, markedly different surfactant effects were observed. In contrast to the newspaper substrate, the surfactant-pretreated pure cellulose substrates had a significant effect on digestibility when they were hydrolyzed in the presence of a surfactant, indicating that the surfactant effect on digestibility is highly dependent on substrate type.
Starting Page	147
Ending Page	151
Page Count	5
File Format	PDF
ISSN	12268372
Journal	Biotechnology and Bioprocess Engineering
Volume Number	12
Issue Number	2
e-ISSN	19763816
Language	English
Publisher	The Korean Society for Biotechnology and Bioengineering
Publisher Date	2007-01-01
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	newspaper pretreatment enzymatic hydrolysis surfactant digestibility α-cellulose Biotechnology Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Bioengineering Biomedical Engineering Applied Microbiology and Biotechnology Biotechnology

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