Abstract: In a method for producing a fermentation product which comprises inoculating a mold in a substrate and cultivating it, the improvement which comprises adding(A) at least one compound selected from the group consisting of salts of aliphatic carboxylic acids having 1 to 4 carbon atoms, and(B) at least one compound selected from the group consisting of chlorous acid, hypochlorous acid, sulfurous acid, hyposulfurous acid, hydrogensulfurous acid, pyrosulfurous acid, salts of these acids, hydrogen peroxide, bleaching powder, chloramine-B, chloramine-T, halazone and acrylamideat any time ranging from a step of preparing the substrate to the step of cultivation.

Abstract: An improved process for producing a salty seasoning by fermentation, wherein the improvement is characterized in that the feeding of raw materials, fermentation or ripening is carried out in the co-presence of potassium chloride and sodium chloride.As compared with the product obtained by a conventional process, the salty seasoning obtained by the above process has a better flavor and has a much lower sodium chloride content so that it is suitable for use in a low sodium diet.

Abstract: In a process for producing a solid koji for a fermented food product which comprises inoculating a koji mold in a modified koji substrate and cultivating it at a temperature of about 20.degree. C. to about 40.degree. C. for a time sufficient to produce a solid koji for fermented food products, the improvement wherein at a certain time during a period of about 10 hours to about 20 hours after the inoculation of the koji mold, the cultivation system is subjected to a drying treatment to adjust its water content to about 30.+-.5%.

Abstract: In a process for producing koji for a fermented food product which comprises inoculating a koji mold in a modified koji substrate and cultivating it at a temperature of about 20.degree. C. to about 40.degree. C. for a time sufficient to produce koji for the fermented food product in the presence of a salt of an aliphatic carboxylic acid with up to 4 carbon atoms; the improvement wherein the cultivation is carried out in the presence of at least one added member selected from the group consisting of lactic acid bacteria and yeasts.

Abstract: A protein hydrolyzate having a high free amino acid content and an excellent flavor can be obtained when salt-resistant lactic acid bacteria are additionally used in the absence or presence of at most 12 percent by weight of sodium chloride based on a volume of an aqueous medium in obtaining the protein hydrolyzate from proteinaceous materials by hydrolysis with proteolytic enzymes.