Ozone pretreatment and fermentative hydrolysis of wheat straw
- Authors: Ben’ko E.M.1, Chukhchin D.G.2, Lunin V.V.1
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Affiliations:
- Faculty of Chemistry
- Northern (Arctic) Federal University
- Issue: Vol 91, No 11 (2017)
- Pages: 2092-2097
- Section: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/169755
- DOI: https://doi.org/10.1134/S0036024417110036
- ID: 169755
Cite item
Abstract
Principles of the ozone pretreatment of wheat straw for subsequent fermentation into sugars are investigated. The optimum moisture contents of straw in the ozonation process are obtained from data on the kinetics of ozone absorbed by samples with different contents of water. The dependence of the yield of reducing sugars in the fermentative reaction on the quantity of absorbed ozone is established. The maximum conversion of polysaccharides is obtained at ozone doses of around 3 mmol/g of biomass, and it exceeds the value for nonozonated samples by an order of magnitude. The yield of sugar falls upon increasing the dose of ozone. The process of removing lignin from the cell walls of straw during ozonation is visualized by means of scanning electron microscopy.
About the authors
E. M. Ben’ko
Faculty of Chemistry
Author for correspondence.
Email: benko_elena@mail.ru
Russian Federation, Moscow, 119991
D. G. Chukhchin
Northern (Arctic) Federal University
Email: benko_elena@mail.ru
Russian Federation, Arkhangel’sk, 163002
V. V. Lunin
Faculty of Chemistry
Email: benko_elena@mail.ru
Russian Federation, Moscow, 119991