Abstract: [Object] To provide a method for improving the quality of at least one member selected from breads, noodles, and confectioneries so that a soft texture (softness) and a moist texture (a moisture retaining property) are imparted, and the member is less susceptible to retrograding or aging even after the elapse of a certain period of time after production (retrogradation or aging is suppressed or prevented), and also to provide an agent to be used in the method.

Abstract: The invention relates to a process for decreasing the ammonia concentration in the interior of the body of domestic animals and fowls, thereby maintaining said animals and fowls in physiologically good condition and decreasing the ammonia concentration in the excrement thereof to decrease the offensive odor generated from the excrement. This is carried out by giving them the antibiotic multhiomycin in the feed or the drinking water containing multhiomycin.

Abstract: The present invention relates to a veterinary medicine containing multhiomycin as an effective ingredient and provides a medicine for promoting growth of animals including birds, fishes and shellfishes and preventing various kinds of diseases of animals or fishes and shellfishes which contains multhiomycin as an essential component.

Abstract: The present invention relates to a method of cultivation and extraction of multhiomycin, an antibiotic, and relates also to a veterinary medicine containing multhiomycin as an effective ingredient and more particularly, the present invention provides a method for obtaining multhiomycin by cultivating a multhiomycin-producing fungus such as Streptomyces sp. 8446-CC1 belonging to genus Streptomyces in a culture medium containing a sulfur-containing amino acid and treating the culture medium with a mixed solvent of alcohols and halogenated hydrocarbons or ketones and provides a medicine for promoting growth of animals and preventing various kinds of diseases of animals which contains multhiomycin as an essential component.