COPPER(II)-CONTAINING CHITOSAN-BASED NON-TOXIC COMPOSITES STIMULATE KEFIR GRAIN BIOMASS PROPAGATION: COMBINED IN VITRO AND IN VIVO STUDIES Статья Dysin A.P., Kirichuk A.A., Egorov A.R., Kozyrev V.A., Rubanik V.V., Rubanik V.V., Tskhovrebov A.G., Schaumlöffel Dirk, Kritchenkov A.S. Food Bioscience. Том 58. 2024. 103741 с.