Fataliyev, H., Huseynova, S., Gadimova, N., Ismayilov, M., Heydarov, E., & Rushanov, A. (2026). Evaluation of the factors influencing the extraction and composition of biologically active substances from secondary raw materials. Eastern-European Journal of Enterprise Technologies, 1(11 (139), 34–45. https://doi.org/10.15587/1729-4061.2026.349976