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Occurrence and distribution of D-cysteinolic acid in fish and shellfish
M Satake1, A Mikajiri, M Makuta
1Central Research Laboratory, Nippon Suisan Kaisha, Ltd, Tokyo, Japan.
Abstract:
1. An unknown compound which is very similar to taurine was detected in the extract of sardine Sardinops melanosticta. 2. It was identified as D-cysteinolic acid: 2-amino-3-hydroxy-1-propanesulfonic acid from instrumental analysis. 3. This may be the first report in which the occurrence of D-cysteinolic acid in fish has been demonstrated. 4. Of 14 species of fish and shellfish examined, the presence of this compound was confirmed in 7 species.