The Utilization of topical application of acetone macerative of known herbal source of triterpenoids and acetone solution of known triterpenoid compound to fifth instar larvae of bivoltine silkworm, Bombyx mori (L) [Race: (CSR6 x CSR26) x CSR2 x CSR27)] f

Abstract

Herbal terpenoids are the sole source of natural Insect Juvenile hormone analogues. The juvenile hormone and analogues serve a lot to orchestrate the progression of metamorphosis in insects like silkworm, Bombyx mori (L). The objective of the present attempt is to utilize the herbal source of triterpenoids (the plant rich in triterpenoids ) for the improvement of quality of silk spinned by the mature fifth instar larvae of bivoltine silkworm, Bombyx mori (L) [(CSR6 x CSR26) x CSR2 x CSR27)]. Ten mircolitres of acetone maceratives of known strength of known herbal source of triterpenoids and acetone solution of known triterpenoid compound were topically applied separately to the fifth instar larvae of bivoltine silkworm, Bombyx mori (L) [Race: (CSR6 x CSR26) x CSR2 x CSR27)] at 48 hours after the fourth moult. The cocoons spinned by the larvae were used for analysis of shell ratio and silk filament for the denier scale. The shell ratio of the cocoons harvested from untreated and acetone treated groups was found measured 20. 264 and 20.363 respectively. The denier scale of the silk filament obtained from the untreated control and acetone treated control groups was 2.704 and 2.705 respectively. Topical application of acetone maceratives of known herbal source of triterpenoid and acetone solution of known triterpenoid separately to the fifth instar larvae of bivoltine raced silkworm, Bombyx mori (L) [(CSR6 x CSR26) x CSR2 x CSR27)] was found resulted into the cocoons with 29.317 and 33.224 shell ratio respectively. The denier scale of silk filament reeled from the herbal and known triterpenoid groups was 2.839 and 3.217 respectively. The known herbal source of triterpenoids and known triterpenoid through acetone were found most significant with reference to the quality of the cocoons and silk filament in silkworm, Bombyx mori (L) [(CSR6 x CSR26) x CSR2 x CSR27)]. The herbal source of triterpenoids and the triterpenoids deserve applicability and exert a significant influence