Fuente: WIPO "tomato" The present invention relates to a method for manufacturing a cellular foam with surface treatment, the manufacturing method comprising the following steps: (a) a supplying step, for providing a cellular foam comprising a matrix defining air-filled cells, which matrix comprises (i) at least one cellulosic filler and (ii) at least one polysaccharide network, and (b) a surface treatment step, during which said cellular foam is exposed to a treatment medium comprising a polar solvent in which at least one phenolic compound is dissolved. The invention also deals with a cellular foam derived from said manufacturing method.