An adsorbent is disclosed which is formed either by coating an adsorption
mass such as active carbon with a gel-like substance such as the dibasic
metallic salt of a macromolecular polycarboxylic acid, soybean curd,
jelly, konjak, agar, perilla, gelidium jelly, or chitosanoxalic acid salt
gel and subsequently subjecting the coated basis to a freezing treatment
or by effecting the coating with the gel-like substance already made to
contain a frost damage preventing substance such as glycerin and
subsequently depriving the coated basis of the frost damage preventing
substance. This adsorbent, on being brought into direct contact with
foodstuffs or ingested directly into the digestive system, effects highly
efficient removal by adsorption of such food additive, feed additive,
agricultural pesticide, food poisoning substance, allergen, heavy metal
or highly poisonous organic compound as are suffered to adhere to or
exist in the foodstuffs, such surplus nutrients as persist in the
digestive system, such oligomers and additives as are contained in
liquors, such metabolites of alcohol as are formed in the digestive
system after assimilation of alcohol, such harmful substances as
hydroperoxides of unsaturated fatty acids as are suffered to exist in
oils and fats, and such components of offensive odor as emanate from
fish.
