Production of lactic acid on enzymatic hydrolysates of cellulose-containing raw materials

Abstract

The production of lactic acid by the microbiological method using as the basis of the nutrient medium hydrolysates of cellulose-containing raw materials is a promising, but poorly studied area of modern biotechnology. Plant or lignocellulose raw materials are considered to be very useful for the production of a variety of microbiological synthesis products. Lignocellulosic raw materials are recognized as the most used carbohydrate material due to renewability and large volumes of production. The possibility of producing of lactic acid on enzymatic hydrolysates of cellulose-containing raw materials (wheat straw, waste paper, mixed substrate) is shown. It is established that hydrolysates of all types of cellulose-containing raw materials allow to obtain lactic acid and probiotic preparations. The yield of lactic acid depends on the type of raw material used. The highest yield of lactic acid is observed when using an unclarified waste paper hydrolyzate as the basis of the nutrient.