Lesnoy Vestnik / Forestry BulletinLesnoy Vestnik / Forestry BulletinЛесной вестник / Forestry Bulletin2542-1468Eco-Vector70666410.18698/2542-1468-2024-4-130-137Wood processing and chemical processing of woodДеревообработка и химическая переработка древесиныResearch ArticleWood waste acid degradation to obtain target productsКислотная деградация древесных отходов как способ получения целевых продуктовOliferenkoGalina L.ОлиференкоГалина Львовна
Russian Federation

Cand. Sci. (Chem.), Associate Professor of the Department of Chemistry and Chemical Technologies in the Forestry Complex

канд. хим. наук, доцент кафедры химии и химических технологий в лесном комплексе

oliferenko2@inbox.ruIvankinAndrey N.ИванкинАндрей Николаевич
Russian Federation

Dr. Sci. (Chem.), Member of the International Higher Education Academy of Sciences (IHEAS), Professor of the Department of Chemistry

д-р хим. наук, академик МАН ВШ, профессор кафедры химии и химических технологий в лесном комплексе

aivankin@mgul.ac.ruUstyugovAleksandr V.УстюговАлександр Викторович
Russian Federation

Cand. Sci. (Chem.), Associate Professor of the Department of General Chemical Technology

канд. хим. наук, доцент кафедры общей химической технологии

ustyugov.alexandr@mail.ruBMSTU (Mytishchi Branch)ФГБОУ ВО «Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)» (Мытищинский филиал)MIREA — Russian Technological UniversityФГБОУ ВО «МИРЭА — Российский технологический университет» (РТУ МИРЭА)150820242841301372304202623042026Copyright ©; 2024, Oliferenko G.L., Ivankin A.N., Ustyugov A.V.Copyright ©; 2024, Олиференко Г.Л., Иванкин А.Н., Устюгов А.В.2024Oliferenko G.L., Ivankin A.N., Ustyugov A.V.Олиференко Г.Л., Иванкин А.Н., Устюгов А.В.https://creativecommons.org/licenses/by/4.0https://journals.eco-vector.com/2542-1468/article/view/706664

It is shown that wood processing waste such as sawdust of coniferous and hardwood species is a unique source of chemical raw materials, the importance of which in the complex chemical processing of materials of natural origin is constantly increasing. The article studies the acid degradation of the easily hydrolyzed carbohydrate part of wood waste as pine and oak sawdust, since it requires less energy and material costs. The basic conditions for acid hydrolysis of this wood raw material have been established to achieve the maximum yield of monosaccharides: the use of sulfuric acid with a mass fraction of 5 % or hydrochloric acid with a mass fraction of 2%; gradual increase in temperature from 25 °C to boiling solution for 1 hour and holding at a temperature of 100...105 °C for 1 hour, hydromodulus 1:100. The total quantitative content of carbohydrates in the obtained hydrolysates was determined in terms of glucose. It has been established that the resulting mixture of carbohydrates includes all the main monosaccharides as highly nutritious substances with increased biological value. It is recommended to use the released carbohydrates in nutrient media formulations as a quickly digestible carbohydrate component for growing microorganisms and productive farm animals.

Показано, что отходы переработки древесины — опилки хвойных и лиственных пород представляют собой уникальный источник химического сырья, значение которого в комплексной химической переработке материалов природного происхождения непрерывно возрастает. Проведено изучение кислотной деградации легкогидролизуемой углеводной части древесных отходов – опилок древесины сосны и дуба, так как она требует меньших энергетических и материальных затрат. Установлены основные условия кислотного гидролиза данного древесного сырья для достижения максимального выхода моносахаридов: использование серной кислоты с массовой долей 5 % или соляной кислоты с массовой долей 2 %; постепенное повышение температуры от 25 °С до кипения раствора в течение 1 ч и выдержка при температуре 100…105 °С в течение 1 ч, гидромодуль 1:100. Определено общее количественное содержание углеводов в полученных гидролизатах в пересчете на глюкозу. Установлено, что в состав получаемой смеси углеводов входят все основные моносахариды — высокопитательные вещества с повышенной биологической ценностью. Рекомендуется использовать выделяемые углеводы в рецептурах питательных сред в качестве быстро усвояемого углеводного компонента для выращивания микроорганизмов и продуктивных сельскохозяйственных животных.

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