Journal
BIORESOURCE TECHNOLOGY
Volume 153, Issue -, Pages 101-107Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.11.079
Keywords
Olive tree pruning; Phosphoric acid; Detoxification; Saccharomyces cerevisiae; Scheffersomyces stipitis
Funding
- Ministerio de Economia y Competitividad [ENE2011-29112]
- FEDER funds
Ask authors/readers for more resources
In this work, the effect of phosphoric acid (1% w/w) in steam explosion pretreatment of water extracted olive tree pruning at 175 degrees C and 195 degrees C was evaluated. The objective is to produce ethanol from all sugars (mainly glucose and xylose) contained in the pretreated material. The water insoluble fraction obtained after pretreatment was used as substrate in a simultaneous saccharification and fermentation (SSF) process by a commercial strain of Saccharomyces cerevisiae. The liquid fraction, containing mainly xylose, was detoxified by alkali and ion-exchange resin and then fermented by the xylose fermenting yeast Scheffersomyces stipitis. Ethanol yields reached in a SSF process were close to 80% when using 15% (w/w) substrate consistency and about 70% of theoretical when using prehydrolysates detoxified by ion-exchange resins. Considering sugars recovery and ethanol yields about 160 g of ethanol from kg of water extracted olive tree pruning could be obtained. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available