Evaluation of Pitch Pine for Bioethanol Production by Organosolv Pretreatment

Won-Jae Youe; Yong Sik Kim; Kyu-Young Kang

doi:10.7584/ktappi.2015.47.4.021

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2015 Vol.47, Issue 4 Preview Page Next Page

Evaluation of Pitch Pine for Bioethanol Production by Organosolv Pretreatment Organosolv 전처리를 통한 리기다소나무의 바이오에탄올 생산 적용성 평가

30 August 2015. pp. 21-29

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Abstract

In this study, the feasibility of utilizing wood chips from pitch pine (Pinus rigida) was evaluated for bioethanol production by an organosolv pretreatment and enzymatic saccharification. When wood chips from pitch wood were pretreated with 75% (v/v) ethanol and 1.7% sulfuric acid as a catalyst at H-factor 2000, average pulp yield was 43.3%, which pretreated wood fibers showed higher glucan (55.8%) and lower lignin (12.2%) contents than untreated control (43.9% glucan and 27.8% lignin). After enzymatic saccharification, the organosolv pulps with 56.2% delignification rate reached above 97% conversion rate of cellulose to glucose. These results indicated that increasing the delignification rate causes micro pores on the surface of organosolv pulps resulting in improved the accessibility of enzyme onto the substrate. Moreover, it was in agreement with the SEM examination of wood fibers.

Keywords

Organosolv pretreatment

bioethanol

enzymatic saccharification

pitch pine

delignification rate

wood fibers

cellulose

References

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Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 47
No :4
Pages :21-29
Received Date : 2015-07-10
Revised Date : 2015-08-19
Accepted Date : 2015-08-21
DOI :https://doi.org/10.7584/ktappi.2015.47.4.021

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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Literature Cited