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Articles by K.L. Jeyalakshmi Kala
Total Records ( 2 ) for K.L. Jeyalakshmi Kala
  E. Rethna Priya , K.L. Jeyalakshmi Kala , S. Ravichandran and M. Chandran
  Amino acids are at the basis of all life processes, as they are absolutely essential for every metabolic process. In the present study variation of amino acids in the muscle of the crab Portunus sanguinolentus during frozen storage was analyzed. In the freshly caught crabs the levels of Glycine and Arginine were the highest, followed by glutamine (Gln) Ala and proline (Pro) together they accounted for 83% of the total amount of FAA. Taurine (Tau) and Glu were also in fairly large amounts. High levels of Gly, Arg, Pro, Tau and Ala are generally present in the muscle of crabs. The P. sanguinolentus muscle was also rich in Gln but low in Tau. The total amount of FAA altered slight throughout storage, but increased by 24-38% prior to the preliminary decomposition stage. The overall quantity of Arg, Gly, Ala and Glu before storage averaged 1272 mg/100 g. the total amount of these four taste-active amino acids increased by12-48% within 4 days of storage at 4°C, but hardly reduced after storage. Significant differences, except glutamic acid and tyrosine, were observed among the amino acid values changed during storage at 4°C. Major FAA such as Gly, Ala, Pro, Gln, Arg and Tau also increased, whereas, their levels usually exhibited small changes or even a decrease except that the Arg and Tau contents increased to some extent. The Glu content fluctuated during the early storage periods but its level reduced after 1 day of storage.
  K.L. Jeyalakshmi Kala , E. Rethna Priya , S. Ravichandran and M. Chandran
  Crab meat is a popular delicacy sold as a high market price. Crab meat contains small amounts of Omega-3 fatty acid, polyunsaturated fats, known to be essential for healthy functioning of the heart. In the present study, freezing and freeze drying, a fatty acid content of lyophilized and frozen meat of crab Portunus sanguinolentus was analyzed. The physical destruction during freeze drying was minimal. When preserved in sealed bags at room temperature for 2 months. No destruction of pigment, such as; discoloration or browning was observed in the meat or viscera. The major contents of fatty acid after rehydration were similar to that before rehydration the most prevalent fatty acid was oleic acid. Lyophilization and rehydration of meat usually, it causes little shrinkage or toughening of the sample and due to the reduction of the surrounding pressure and their sublimation from solid phase to liquid phase, there will not be huge effect on chemical composition and their nutritive value. The body flesh of P. sanguinolentus contains a considerable amount of both Eicosa Pentaenoic Acid (EPA) and Docosa Hexaenoic Acid (DHA). About 24 fatty acids have been found to occur in the lyophilized and frozen crab body tissue. Mono Unsaturated Fatty Acids (MUFAs) were the most abundant of the total.
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