scholarly journals Growth and development of the mulberry silkworm, Bombyx mori l. on vitamin B and c supplemented diet

2015 ◽  
Vol 41 (2) ◽  
pp. 199-206 ◽  
Author(s):  
Md Kamrul Ahsan ◽  
Ataur Rahman Khan ◽  
Tasnima Ferdous
Keyword(s):  
Vitamin C ◽  
Bombyx Mori ◽  
Growth And Development ◽  
Vitamin B ◽  
Growth Indices ◽  
Oral Supplementation ◽  
Bombyx Mori L ◽  
Mulberry Silkworm ◽  
Silkworm Bombyx Mori ◽  
Significant Increment

The effect of vitamin B and vitamin C on the growth and development of Bombyx mori L. has been studied. Oral supplementation of different concentrations of vitamin B and C to the 3rd, 4th and 5th instar larvae of multivoltine silkworm variety, BSR-95/14(M) resulted significant increase in larval and pupal characters. It was observed that the development of larvae and pupae took place up to a particular dose. There was also a significant increment in the various growth indices following vitamin supplements with the mulberry leaves.Bangladesh J. Zool. 41(2): 199-206, 2013

BmNPV alters NADP-dependent malate dehydrogenase activity and associated macromolecules and retards growth and development of the mulberry silkworm, Bombyx mori L., during the final instar

2002 ◽  
Vol 80 (8) ◽  
pp. 1451-1459 ◽  
Author(s):  
Natraj Krishnan ◽  
Anathbandhu Chaudhuri
Keyword(s):  
Bombyx Mori ◽  
Malate Dehydrogenase ◽  
Growth And Development ◽  
Fat Body ◽  
Post Inoculation ◽  
Body Tissues ◽  
Baculovirus Infection ◽  
Bombyx Mori L ◽  
Mulberry Silkworm ◽  
Silkworm Bombyx Mori

Changes in tissue-specific NADP-dependent malate dehydrogenase (MDH) activity and protein and cholesterol contents and retardation of growth and development in the mulberry silkworm, Bombyx mori L., induced by infection with a baculovirus, the B. mori nucleopolyhedrovirus (BmNPV), were investigated. The study revealed that the relative growth rate and development of the fifth-instar larva was significantly inhibited during the progression of nuclear polyhedrosis disease at various times post inoculation (p.i.). Percent pupation and reproductive output were also adversely affected. NADP-dependent MDH activity in the hemolymph peaked sharply at 6 h p.i. and then gradually decreased, reaching a minimum at 264 h p.i., with exceptions at 30 and 72 h p.i. These levels of MDH activity were different from those in non-infected controls. In fat-body tissues, NADP-dependent MDH activity was significantly higher in infected insects than in non-infected controls of the same age. These results indicate that baculovirus infection causes significant changes in intermediary metabolic pathways, causing a significant fall and rise in protein and cholesterol contents in tissues during development of fifth-instar larvae.

scholarly journals Effect of Thermal Processing on Physico-Chemical and Antioxidant Properties in Mulberry Silkworm (Bombyx mori L.) Powder

Foods ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 871 ◽  
Author(s):  
Artorn Anuduang ◽  
Yuet Ying Loo ◽  
Somchai Jomduang ◽  
Seng Joe Lim ◽  
Wan Aida Wan Mustapha
Keyword(s):  
Bombyx Mori ◽  
Thermal Processing ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Hot Water ◽  
Frap Assay ◽  
Drying Temperature ◽  
Bombyx Mori L ◽  
Mulberry Silkworm ◽  
Silkworm Bombyx Mori

The mulberry silkworm (Bombyx mori L.) is a common edible insect in many countries. However, the impact of thermal processing, especially regarding Thai silkworm powder, is poorly known. We, therefore, determined the optimum time for treatment in hot water and subsequent drying temperatures in the production of silkworm powder. The silkworms exposed to 90 °C water for 0, 5, 10, 15, and 20 min showed values of Total Phenolic Compounds (TPCs), 2,2-Diphenyl-1-picrylhydrazyl free radical scavenging (DPPH) assay, 2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) assay, and Ferric Reducing Antioxidant Power (FRAP) assay that were significantly (p < 0.05) higher at the 5 min exposure time compared with the other times. The reduction of microorganisms based on log CFU/g counts was ≥3 log CFU/g (99%) at the 5 min treatment. To determine the optimum drying temperature, the silkworms exposed to 90 °C water for 5 min were subjected to a hot-air dryer at 80, 100, 120, and 140 °C. The TPC value was the highest (p < 0.05) at 80 °C. The silkworm powder possessed significantly (p < 0.05) higher DPPH, ABTS radical scavenging ability, and ferric ion reducing capability (FRAP assay) at 80 °C compared with other drying temperatures. This study indicates that shorter exposure times to hot water and a low drying temperature preserve the antioxidant activities. High antioxidant activities (in addition to its known protein and fat content) suggest that silkworms and silkworm powder can make a valuable contribution to human health.

Correlation between yield and biochemical parameters in the mulberry silkworm,Bombyx mori L

1993 ◽  
Vol 87 (3) ◽  
pp. 385-391 ◽  
Author(s):  
S. N. Chatterjee ◽  
C. G. P. Rao ◽  
G. K. Chatterjee ◽  
S. K. Ashwath ◽  
A. K. Patnaik
Keyword(s):  
Bombyx Mori ◽  
Biochemical Parameters ◽  
Bombyx Mori L ◽  
Mulberry Silkworm ◽  
Silkworm Bombyx Mori

Antiviral activity in the mulberry silkworm, Bombyx mori L.

2006 ◽  
Vol 7 (S2) ◽  
pp. 350-356 ◽  
Author(s):  
Hui-peng Yao ◽  
Xiao-feng Wu ◽  
K. Gokulamma
Keyword(s):  
Antiviral Activity ◽  
Bombyx Mori ◽  
Bombyx Mori L ◽  
Mulberry Silkworm ◽  
Silkworm Bombyx Mori

scholarly journals Genetic characterization of silkworm (Bombyx mori L.) strains (Lepidoptera: Bombicidae) with different geographical origin on the basis of isozyme markers

2020 ◽  
Vol 42 ◽  
pp. e47970
Author(s):  
Teodora Atanasova Staykova ◽  
Panomir Ivanov Tzenov ◽  
Yolanda Bogdanova Vasileva ◽  
Sibel Djevdet Aziz ◽  
Evgenya Neshova Ivanova ◽  
...  
Keyword(s):  
Bombyx Mori ◽  
Geographical Origin ◽  
Null Alleles ◽  
Economic Significance ◽  
Geographical Regions ◽  
Hardy Weinberg Equilibrium ◽  
Bombyx Mori L ◽  
Almost All ◽  
Mulberry Silkworm ◽  
Silkworm Bombyx Mori

The aim of the present study was to assess genetics variations within and among strains with different geographical origin, belonging to Bulgarian germplasm bank of mulberry silkworm (Bombyx mori L.) and to establish their relationships using isoenzyme markers. Polyacrilamide gel electrophoresis (PAGE) was used to study the isoenzymes of nonspecific esterases (EST), malate dehydrogenase (MDH) and acid phosphatase (ACP) from haemolymph, phosphoglucomutase (PGM) and hexokinase (HK) from silk glands and alkaline phosphatase (ALP) from midgut of mulberry silkworm (Bombyx mori L.). Variability was evident in all of these enzyme systems among twelve strains from Bulgarian germplasm resources of B. mori. Total of nine loci were detected. All of them (100%) were polymorphic. “Null” alleles in four loci were determined. Intra- and inter-strain polymorphism was obtained. The degree of polymorphism ranged from 0% to 77.80%. Low levels of observed heterozygosity in comparison with the expected one have been calculated in almost all of strains as well as deviations from Hardy-Weinberg equilibrium in almost all analyzed loci, resulting of excess of homozygotes. The value of FST was 0.4903. The dendrogram constructed with the values of genetic distance manifests that Romanian strain Cislau Tokay is formed one main clade while the rest strains studied (from Bulgaria, Japan, China, Vietnam, Spain, Syria and Egypt) are formed the other clade with subclades. The genetic data of the tested strains from different geographical regions, would be used for identifying suitable parents for breeding programs with a view to yield improvement in this species with economic significance.

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