Fecha de publicación: -- Fuente: WIPO "tomato" Methods for producing a fibrous meat or seafood analog is provided. A protein-rich mixture is directionally frozen, forming anisotropic columns of ice that concentrate the proteins into aligned elongated fibers. Thawing this directionally frozen mixture in a thawing solution formulated to lock the structure of the aligned elongated fibers produces a fibrous product, which at the same time allows for removal of any impurities through the thawed water channels formed from thawing.