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Research Article
Protein Banding Pattern and Major Amino Acid Component in De-Oiled Pupal Powder of Silkworm, Bombyx mori Linn.

Kanika Trivedy, S. Nirmal Kumar, Mousumi Mondal and C. Anil Kumar Bhat

Journal of Entomology, 2008, 5(1), 10-16.


Quantitatively Bombyx mori pupal powder contains significantly higher amount of protein in female as compared to male in both the hybrids of PM x CSR2 and CSR2 x CSR4 studied. On an average, in the former hybrid 14.81% and in the later hybrid 14.58% soluble protein was present as compared to total protein 60.81 and 63.66%, respectively. Qualitatively, no difference was found in amino acid content between the male and female of both hybrids. Five major amino acids found in PM x CSR2 were nor leucine, methionine, glutamic acid, hydroxyl proline, Aspartic acid and in CSR2 x CSR4 were isoleucine, valine, amino butyric acid, hydroxyl proline and leucine. SDS PAGE results reveled that there was no polymorphism between the sexes of two hybrids. Two polypeptides were identified in the range at 43 and 14.3 KD. Of the two polypeptides identified, the banding pattern of 43 KD was prominent in both the sexes of the two hybrids.

ASCI-ID: 48-163

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