Protein and Electrophoretic Analysis of Edible Muscle of Commercially Important Crustaceans and Mollusks Species from Egyptian and Saudi Arabia Costs

Abstract

Crustaceans and mollusks are important components of the aquatic fauna. Furthermore, crustaceans and mollusks consumption have been increasing worldwide during the past decades. So, therefore, the present study was investigated the variation between total protein content and protein electrophoretic pattern in edible muscle of commercially important crustaceans (Erugosquilla massavensis, Peaneus semisulcatus, Metapenaeus monoceros and Portunus pelagicus) and mollusks (Sepia spp., Cardium edule) as an attempt to rank them as an alternative rich animal protein source for human. The recorded data declare that the highest protein percentage was observed in males E. massavensis followed by Sepia spp then P. pelagicus and shrimps. On the other hand, females E. massavensis and bivalve mollusks (C. edule) had less total protein contents in their muscles, additionally, the recorded data showed a variation in band numbers and estimated molecular weight of muscle protein between sexes of each species and among the studied species. The results of the present work clearly indicate that there are differences in the protein structure of the muscles in different species of crustaceans and mollusks with reference to the protein fractions and their molecular weights.