Improved gel formation of Japanese common squid [Todarodes pacificus] muscle as a result of suppression of autolysis by some organic salt
2004
Kuwahara, K. (Nagasaki-ken. Inst. of Fisheries (Japan)) | Osako, K. | Konno, K.
For the purpose of utilizing squid meat as textured products, the effects of sodium citrate, sodium tartrate and sodium gluconate on the gel-forming ability was studied considering the effect on myosin degradation by proteases. All of the compounds increased the breaking strength of squid meat gel. Sodium citrate showed the greatest effect among them. The addition of all of the organic salts to the squid meat suspension suppressed myosin degradation when stored at 5 deg C. This effect was similar to that of EDTA, indicating that organic salts inhibited myosin degradation by metal protease. When studied at 35 deg C, sodium citrate showed the greatest inhibition on myosin degradation. The effect was almost comparable to the effect achieved by the mixture of EDTA and PMSF. From these results, sodium citrate was concluded to be the most effective additive for increasing the gel strength of squid meat through the inhibition of both serine protease and metal protease.
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