Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.14258/jcprm.20230413782

Ключевые слова: flax shives, linum usitatissimum, sunflower seed husks, Helianthus annuus, buckwheat husks, Fagopyrum esculentum, lignin, oxidation, vanillin, hydrolysis

Аннотация: Agrotechnical wastes from processing herbaceous plants consist of lignin and polysaccharides, which can be processed into monomers - phenols and carbohydrates. The prospects of chemical processing of several agrotechnical waste types with a high lignin content (flax shives, sunflower seed husks and buckwheat husks) into vanillin, pulp, and glucose by oxidation and acid hydrolysis were studied. It has been shown that despite the distant phylogenetic relationship of the studied plants, their lignins have a similar structure: they contain a similar amount of methoxyl groups (10-13 wt.% per lignin) and give close yields of aromatic aldehydes upon oxidation with nitrobenzene (17-19%) and oxygen (14-16%). In general, the suitability of agrotechnical wastes for oxidation to aromatic aldehydes determines by the lignin content. Among the studied wastes, flax shives are the most promising feedstock for chemical processing into vanillin and glucose. Cellulose-containing solid residues of oxidation process are more easily hydrolyzed compared to the initial lignocellulosic biomass. The inversion of glucose oligomers during the hydrolysis of cellulose with H2SO4 is limited by the hydrolysis of the tetra- and octamers.

Журнал: Химия растительного сырья

Выпуск журнала: №4

Номера страниц: 137-145

ISSN журнала: 10295151

Место издания: Барнаул

Издатель: Алтайский государственный университет, Сибирский государственный университет науки и технологий им. акад. М.Ф. Решетнева, Национальный исследовательский Томский политехнический университет, Красноярский научный центр СО РАН, Сибирский НИИ сельского хозяйства и торфа СО РАСХН, Сибирский федеральный университет, Национальный исследовательский Томский государственный университет

• Golubkov Viktor A. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)
• Tarabanko Valery E. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)
• Kaygorodov Konstantin L. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)
• Shestakov Semen L. (Federal State Autonomous Educational Institution of Higher Education «Northern (Arctic) Federal University named after M.V. Lomonosov»)
• Chelbina Yulia V. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)
• Smirnova Marina A. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)
• Popov Arkady A. (Reshetnev Siberian State University of Science and Technology)
• Skripnikov Andrey M. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)
• Vigul Dmitry O. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)
• Borovkova Valentina S. (Institute of Chemistry and Chemical Technology SB RAS, FSC KSC SB RAS)

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