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Production of Sugar Feedstocks for Fermentation Processes from Selected Fast Growing Grasses

1
Natural Fibers Advanced Technologies, 42A Blekitna Street, 93-322 Lodz, Poland
2
Faculty of Wood Technology, Warsaw University of Life Sciences-SGGW, 159 Nowoursynowska Street, 02-776 Warsaw, Poland
3
Department of Grasses, Legumes and Energy Plants, Plant Breeding and Acclimatization Institute-National Research Institute, Radzikow, 05-870 Blonie, Poland
4
Lodz University of Technology, Institute of Technical Biochemistry, 4/10 Stefanowskiego Street, 90-924 Lodz, Poland
*
Author to whom correspondence should be addressed.
Energies 2019, 12(16), 3129; https://doi.org/10.3390/en12163129
Received: 25 June 2019 / Revised: 5 August 2019 / Accepted: 12 August 2019 / Published: 15 August 2019
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Abstract

This study showed that kraft cellulosic pulps from Miscanthus giganetus JM Greef and Deuter ex Hodk. and Renvoize, sweet sorghum and 5 other fast growing grasses may be easily enzymatically converted to glucose-rich sugar feedstocks. The scientific goal of the paper was to assess and compare the potential yield of hydrolysis and verify whether these grasses may be a source of sugars for fermentation processes. Kraft pulping was used as a pretreatment method and hydrolysis of the pulps was conducted using a commercial multienzyme preparation containing cellulases and xylanases at initial substrate concentrations of 0.476, 3.88 and 7.46% w/v, and 3 different enzyme loadings. Results showed that tall wheatgrass, striped tuber oat grass, tall fescue and smooth bromegrass may be efficiently converted to sugar feedstocks for biotechnology application, but that the simple reducing sugars yield is lower than for wood, due to lower cellulose content. View Full-Text
Keywords: cellulosic pulps; enzymatic hydrolysis; kraft pulping; alternative fibrous raw materials cellulosic pulps; enzymatic hydrolysis; kraft pulping; alternative fibrous raw materials
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Przybysz, K.; Małachowska, E.; Martyniak, D.; Boruszewski, P.; Kalinowska, H.; Przybysz, P. Production of Sugar Feedstocks for Fermentation Processes from Selected Fast Growing Grasses. Energies 2019, 12, 3129.

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