Tshernyshev S.E., Baghirov R.T-O., Modyaeva V.P., Morozova M.D., Skriptcova K.E., Subbotina E.Yu., Shcherbakov M.V., Simakova A.V. 2023. Invertebrates of Siberia, a potential source of animal protein for innovative human food production. 3. Principles of biomass nutrient composition design // Euroasian Entomological Journal. Vol.22. No.5: 246–255 [in English].
Tomsk State University, Lenina Prosp. 36, Tomsk 634050 Russia. E-mail: sch-sch@mail.ru, shib@sibmail.com, rbaghirov@yandex.ru, vera.modyaeva@gmail.com, science.margarita145@list.ru, ksu.skriptcova@mail.ru, orfelia73@mail.ru, tephritis@mail.ru, omikronlab@yandex.ru
doi 10.15298/euroasentj.22.05.03
ABSTRACT. The method of providing an invertebrate biomass with particular parameters of a nutrient-dense composition (i.e. supplied with relatively more nutrients than calories) is discussed. An increase in the content of particular nutrients in the biomass of two invertebrate (model) species was achieved via the input of precursor material in the food substrate. The content of protein, minerals, B-group vitamins and liposoluble vitamins A, E, D and K in the biomass of the Giant African land snail Lissachatina fulica (Férussac, 1821) and the Speckled cockroach Nauphoeta cinerea (Olivier, 1789) were investigated. A minimal input of vitamins C and B7 to the food substrate resulted in only a slight decrease in the level of protein in the biomass of snails from с. 20.4 to 18.8 % and in cockroaches from c. 8.6 to 8.0 %, but an increase in vitamins B1, B2, B3, B4 and B9 was found in the biomass of snails, and B1, B4 and B9 in cockroaches; the content of liposoluble vitamins A, E, D and K increased significantly in the biomass of cockroaches, but A, E and D increased and K decreased in snails. The content of Se, I, Pb, Hg, Mo, Ca, Na, K and Cl in the biomass of snails and of Fe, Se, Zn, Mn, Mg, P, Ca, Na, K and Cl in cockroaches also increased. Clearly, food substrate enrichment by precursor material results in nutrient composition changes in the invertebrate biomass. Further research will clarify the quantity and chemical form of precursor material inserted into a food substrate necessary to determine the most suitable nutrition for invertebrates.
KEY WORDS: Terrestrial invertebrates, Siberia, biomass, nutrient design.