Production of ethanol from waste paper using immobilized yeasts
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- 作者：Miroslava Zichová ; Eva Stratilová ; Jiřina Omelková ; Renáta Vadkertiová…
- 关键词：Bioethanol ; Immobilization ; Waste paper ; Yeast
- 刊名：Chemical Papers
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：71
- 期：3
- 页码：553-561
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering; Biochemistry, general; Medicinal Chemistry; Materials Science, general; Biotechnology;
- 出版者：Springer International Publishing
- ISSN：1336-9075
- 卷排序：71
文摘
This work is aimed at a selection of yeast strains suitable for simultaneous saccharification and fermentation of waste paper. The waste paper, as a lignocellulosic material, represents an unconventional source for the production of ethanol which is a promising alternative fuel. The yeast strains Saccharomyces cerevisiae and Pichia kudriavzevii produced the highest amounts of ethanol at 30 °C and were also resistant at 40 °C during the first 92 h of fermentation. These two strains were immobilized by entrapment into poly(vinyl alcohol) hydrogel lens-shaped particles LentiKats®. The immobilized S.cerevisiae was a better ethanol producer and retained higher metabolic activity in repeated batch fermentations than P.kudriavzevii. The immobilized S. cerevisiae was also suitable for a long-term storage, with 23% decrease in the ethanol production ability after 1-year storage of yeast cells.