EFFECT OF ULTRASONIC PRETREATMENT ON THE COMPOSITION OF LIGNOCELLULOSIC MATERIAL IN BIOTECHNOLOGICAL PROCESSESстатья
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Статья опубликована в журнале из перечня ВАК
Дата последнего поиска статьи во внешних источниках: 1 апреля 2020 г.
Аннотация:The ultrasonic impact and possibilities of using its damaging effect on lignocellulosic material in order to increase the reactivity of plant biomass are studied. The main aim of pretreatment is the disruption of the crystalline, highly ordered structures of cellulose and lignin, or the removal of the latter. At the selected optimum parameters of ultrasonic pretreatment (frequency, 30 kHz) of the raw material, degradation of cellulose reaches 16% of a.d.s. (absolutely dry substance) while that of lignin is 11.4 % of a.d.s. Pretreatment of a substrate with ultrasound changes the rate and depth of the destruction of the initial material in the course of cultivation and can be used to accelerate the bioconversion of lignocellulosic substrates in biodiesel fuel production.