Article

Method of preparing oat straw for biofuel production

Vita Halysh, Inna Trus, Olha Yashchenko, Maryna Hromnadska, Pavlo Zubyk
Abstract

As a leading agro-industrial country, Ukraine generates significant amounts of by-products every year, including oat straw, which, given its lignocellulosic composition, is a valuable resource for meeting bioenergy needs. The aim of this work was to investigate the effectiveness of treating oat straw with a mixture of acetic acid and hydrogen peroxide for effective delignification and obtaining a substrate with a high content of polysaccharide component for potential use in the production of second-generation biofuel. Mathematical modelling and regression equation analysis were applied based on experiments with varying hydrogen peroxide concentrations (10-30 vol.  %) and treatment durations (60-120 min) to determine the optimal compromise between lignin removal and cellulose preservation. It was found that hydrogen peroxide consumption and treatment duration have a predominantly negative effect on substrate yield, while a positive effect is observed for lignin removal. It was shown that the optimal conditions are a hydrogen peroxide content of 30 vol. % in the mixture with a treatment duration of 60 min, which ensures the maximum value of the desirability function and the production of a substrate with a yield of 52.8%, a lignin content of 2.1% and a cellulose content of 66.8%. Experimental verification of these conditions confirmed the reliability of the obtained model: a substrate with a yield of 52.1%, lignin content of 2.3% and cellulose content of 65.9% was obtained. Thus, the work demonstrates the effectiveness of a sound approach to the processing of agro-industrial waste, opening up prospects for the production of second-generation biofuels. The results obtained have scientific and practical significance, as they confirm the effectiveness of optimised delignification of oat straw and create a scientifically sound basis for the development of resource-efficient technologies for the production of second-generation biofuels

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Received 01.05.2025

Revised 10.10.2025

Accepted 10.12.2025

https://doi.org/10.63341/esbur/2.2025.09
Retrieved from Vol. 16, No. 2, 2025
Pages 9-18

Suggested citation

Halysh, V., Trus, I., Yashchenko, O., Hromnadska, M., & Zubyk, P. (2025). Method of preparing oat straw for biofuel production. Ecological Safety and Balanced Use of Resources, 16(2), 9-18. https://doi.org/10.63341/esbur/2.2025.09

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