What question did this study set out to answer?

The study aims to optimize the treatment of oat straw using acetic acid and hydrogen peroxide to maximize biofuel potential.

February 12, 2026Ecological Safety and Balanced Use of Resources0 citationsOpen Access

Method of preparing oat straw for biofuel production

VHVita HalyshNational Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”ITInna M. TrusNational Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”OYO. V. YashchenkoNational Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

Key Points

The study aims to optimize the treatment of oat straw using acetic acid and hydrogen peroxide to maximize biofuel potential.
Treatment of oat straw with a mixture of acetic acid and hydrogen peroxide.
Varying concentrations of hydrogen peroxide (10-30 vol. %) and treatment durations (60-120 min) were tested.
Mathematical modeling and regression analysis were performed to find optimal treatment conditions.
Optimal treatment conditions were identified at 30 vol. % hydrogen peroxide and 60 min duration.
Under optimal conditions, a substrate yield of 52.8% with 2.1% lignin and 66.8% cellulose was achieved.
Experimental results confirmed the model with a substrate yield of 52.1%, 2.3% lignin, and 65.9% cellulose.

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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