PROCÉDÉ DE SÉCHAGE D'UN EXTRAIT DE TISSU ACELLULAIRE DANS UN HYDROGEL COMPRENANT DE LA CELLULOSE NANOFIBRILLAIRE ET HYDROGEL DÉSHYDRATÉ COMPRENANT DE LA CELLULOSE NANOFIBRILLAIRE ET EXTRAIT DE TISSU ACELLULAIRE
The present disclosure relates to method for drying cell-free tissue extract in a hydrogel comprising nanofibrillar cellulose, the method comprising providing a hydrogel comprising nanofibrillar cellulose, providing cell-free tissue extract comprising a mixture of bioactive substances, providing polyethylene glycol, providing trehalose, mixing the hydrogel, the cell-free tissue extract, the polyethylene glycol and the trehalose to obtain a mixture, and freeze drying the mixture to obtain a cell-free tissue extract in the dried hydrogel comprising nanofibrillar cellulose. The present disclosure relates to a dried hydrogel comprising nanofibrillar cellulose, cell-free tissue extract comprising a mixture of bioactive substances, polyethylene glycol and trehalose, wherein the moisture content of the dried hydrogel is 10% (w/w) or less.
