Recently, various fish sources are made from unused
fishery resources with KOJI 23)24). For example, puffer fish
meat, whale meat, and sea urchin gonads. These
resources are the processing residue from the seafood
industry. The flavor of these fish sources using KOJI are
different from the non-using KOJI, then the flavor of
these fish sources using KOJI decrease the characteristic
flavor of the non-using KOJI. However, these fish sources
tastes good. Especially, the puffer fish sauce has a
stronger antioxidative activity than the other fish and soy
source23)-25). Therefore, these fish sources have already
been sold(Fig. 1).