Bioconversion of waste products of french fries and chips into protein-rich biomass.
2022
For the purpose to obtain proteins and other bioactive compounds-rich biomass from the waste of Georgian production of french fries and chips the screening of Sporotrichum pulverulentum strains from the collection of microscopic fungi of the Durmishidze Institute of Biochemistry and Biotechnology, Agricultural University of Geogia was carried out. The strain S. pulverulentum G-11 was selected. To increase the protein content in the obtained biomass, the optimization of cultivation conditions and nutrient medium composition of S. pulverulentum G-11under the solid-state fermentation was conducted. The optimal parameters for the cultivation of selected strain were established. The possibility of bioconversion of the french fries and chips industry waste by means of S. pulverulentum G-11 was demonstrated. Partly delignified, easily digestible protein-rich biomass was obtained. The content of lignin in the obtained biomass decreased by 38.76%, cellulose – by 41.1 % (which significantly raises the digestibility of biomass and its nutritional value), while the content of proteins increased by 13.5%, as compared to the control. Tab. 2, Fig. 6, Ref. 10.
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