The main purpose of this study was to understand the contents of proximate composition and attractant related compounds in fish soluble, squid soluble and shrimp soluble derived from local or imported. Among these three soluble, fish soluble contained the highest crude protein. Crude lipids were abundant in squid soluble, and shrimp soluble has a higher crude ash content and a lower crude fat. Crude ashes in imported fish soluble were higher than that of the local product, but crude fat was low. The proximate compositions between local and imported squid soluble were no significantly different. For volatile basic nitrogen (VBN) value of fish soluble and squid soluble were no significantly different between the local and the imported products, but the VBN value in shrimp soluble (72.50mg%) was the lowest of all. Subsequent study on the VBN/TN ratio, inspect two of local fish soluble, all of the products were lower than 10%.
The level of cholesterol correlated well with crude fat contents, local fish soluble were higher than imported, but there was no significant difference between local and imported squid soluble products, and cholesterol contents in shrimp soluble were the lowest of the three products. The major attracted amino acids, nucleotides and related compounds (NRC) in squid soluble were aspartic acid, lysine and UMP. And in shrimp products were glutamic acid, arginine, ATP and IMP. In addition, histidine was abundant in fish soluble and higher than those of the squid and shrimp soluble. The ATP, ADP and AMP were the dominant attracted NRC in fish soluble. The total amounts of attracted compounds of shrimp soluble were significantly higher than those of the fish and squid soluble.
Key words：Fish soluble, Attracted compounds, Free amino acid, Nucleotides and related compounds