Jump to main content
Jump to site search

Issue 70, 2016, Issue in Progress
Previous Article Next Article

Chemical and structural analysis of alkali pretreated pinewood for efficient ethanol production

Author affiliations

Abstract

Improvement of enzymatic hydrolysis and ethanol production from softwood pine was conducted by pretreatment with 8% (w/v) NaOH at different temperatures of 0, 25, and 80 °C for 2 h. Compared with the untreated wood, the lowest temperature resulted in the highest improvement of 271.1 and 218.2% in glucose and ethanol production yields, respectively. In addition to the pretreatment, Tween-20 as a non-ionic surfactant was used to enhance the enzymatic hydrolysis and fermentation yields by decreasing the ineffective adsorption of cellulases to the substrate. Addition of Tween-20 modified the glucose and ethanol yields from 10.9 and 10.4% for untreated wood to 39.2 and 47.8%, respectively. Structural analyses, including SEM and FTIR along with swelling and buffering capacity measurements, indicated that alkaline pretreatment modified the structure of pinewood by decreasing cellulose crystallinity and lignin content as well as increasing water absorbance and resistance to pH.

Graphical abstract: Chemical and structural analysis of alkali pretreated pinewood for efficient ethanol production

Back to tab navigation

Article information


Submitted
03 May 2016
Accepted
01 Jul 2016
First published
06 Jul 2016

RSC Adv., 2016,6, 65683-65690
Article type
Paper

Chemical and structural analysis of alkali pretreated pinewood for efficient ethanol production

M. S. Noori and K. Karimi, RSC Adv., 2016, 6, 65683
DOI: 10.1039/C6RA11486E

Social activity

Search articles by author

Spotlight

Advertisements