• Title/Summary/Keyword: sericultural products

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Effect of Several Sericultural Products on Blood Glucose Lowering for Alloxan-induced Hyperglycemic Mice (잠상산물의 장기간 투여에 따른 혈당강하효과)

  • 이희삼;정교순
    • Journal of Sericultural and Entomological Science
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    • v.40 no.1
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    • pp.38-42
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    • 1998
  • This study designed to investigate the blood glusose lowering effect of sericultural products using allozan-induced byperglycemic mice. The administration of sericultural products did not affect body weight between normal mice and alloxan induced hyperglycemic mice. High blood glucose level in alloxan-induced mice group was maintained, during all the experimental period. In the 2-3 weeks, a significant decrease in the blood glucose level was observed in the group treated with sericultural products. Up to 5 weeks, blood glucose level of those group was maintained. Sericultural products treatment group have an activity for glucose tolerance test. Sericultural products showed the blood glucose lowering acivity for loading maltose and sucrose.

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Contents of Nicotinamide and GABA in Several Sericultural Products (수 종 잠상산물의 Nicotinamide 및 GABA함량)

  • Bang, Hye-Seon;Son, Hae-Ryong;Lee, Wan-Ju
    • Journal of Sericultural and Entomological Science
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    • v.39 no.2
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    • pp.114-118
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    • 1997
  • Nicotinamide and GABA(${\gamma}$-aminobutyric acid) contents in sericultural products, Mori Folium, Mori Fructus, Mori Cortex Radicis, silkworm podwer, Bombycis Exerementum and Bombycis Corpus were analyzed by HPLC. Nicotinamide content was higher in silkworm derived-products than in mulberry derived-products. Nicotinamide contained Bombycis Excrementum was the highest by 0.31 mg/g DW among the sericultural products. GABA content showed the highest by 1.68 mg/g DW in Mori Cortex Radicis among the sericultural products.

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Screening of Fungicides and Natural Plant Products and Their Efficacy on Control of Aspergillosis in Silkworm, Bombyx mori L.

  • Singh, G.P.;Sharma, S.D.;Selvakumar, T.;Nataraju, B.;Datta, R.K.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.4 no.1
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    • pp.5-11
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    • 2002
  • Seven fungicides viz., salcylic acid, bacistin (Carbandazim 50% WP), bayleton (Triadimefon 25% WP), Dithane M-45 (Mancozeb 75% WP), captan (Captaf 50% WP) formaldehyde and benzoic acid at three concentrations (0.50,0.75 and 1.0%) and ten plant products viz., Hena leaf, garlic bulb, tomato leaf, mango bark, cotton leaf, turmeric powder, onion, tulsi leaf, neem leaf and ginger at 1.0,2.0 and 3.0% concentrations were screened against Aspergillus flavus and A. tamarii in vitro. Among fungicides, salcylic acid and bavistin and among plants Hena and Mango bark powder were found to be very effective at all concentrations tested. Based on in vitro screening, only selected six fungicides at 1.0, 1.5 and 2.(0% and six plants at 2.0,4.0 and 6.0% concentrations were tested in vivo for controlling Aspergillosis in silkworm. Salcylic acid and bavistin fungicides and Hena leaf powder and Mango bark powder have shown considerable effect in controlling Aspergillus infection in silkworm at all concentrations tested.

The Current Status and Prospect of Sericultural Byproduct Industry in China

  • Gui, Zhongzheng;Guo, Xijie;Fuan, Wu;Jianyi, Dai
    • International Journal of Industrial Entomology and Biomaterials
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    • v.7 no.1
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    • pp.1-4
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    • 2003
  • Sericulture is a traditional agro-industry, which involves mulberry cultivation and silkworm rearing, has made great contributes to the human civilization. With the development of national economy and modem technology, mulberry and silkworm are being used to develop products with functionality besides the traditional cocoon production in China. In this paper, we brief the current developing situation of sericultural byproducts with functionality in the following aspects. (1) Functional products from silkworm larvae: silkworm powder, white muscardine silkworm, isolation and purification of anti-bacterial proteins from the larvae and production of medically valuable substances by Bombyx mori nuclear polyhedrosis virus (BmNPV) vector. (2) Utilization of silkworm feces: for pillow and for isolation of chlorophyll etc. (3) Production of valuable Chinese traditional medicine like Cordyceps sinensis with pupae, functional utilization of pupa protein and chitin. (4) Silk as additives to cosmetics, silk food and medical materials. (5) Functional utilization of mulberry: cultivation of edible fungus on mulberry shoots as medium, mulberry fruit drinks, mulberry tea, etc. The prospect of sericultural byproduct industry in China is also discussed.

Genomic Organization of Heat Shock Protein Genes of Silkworm Bombyx mori

  • Velu, Dhanikachalam;Ponnuvel, Kangayam M.;Qadri, Sayed M. Hussaini
    • International Journal of Industrial Entomology and Biomaterials
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    • v.15 no.2
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    • pp.123-130
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    • 2007
  • The Hsp 20.8 and Hsp 90 cDNA sequence retrieved from NCBI database and consists of 764 bp and 2582 bp lengths respectively. The corresponding cDNA homologus sequences were BLAST searched in Bombyx mori genomic DNA database and two genomic contigs viz., BAAB01120347 and AADK01011786 showed maximum homology. In B. mori Hsp 20.8 and Hsp 90 is encoded by single gene without intron. Specific primers were used to amplify the Hsp 20.8 gene and Hsp 90 variable region from genomic DNA by using the PCR. Obtained products were 216 bp in Hsp 20.8 and 437 bp in Hsp 90. There was no variation found in the six silkworm races PCR products size of contrasting response to thermal tolerance. The comparison of the sequenced nucleotide variations through multiple sequence alignment analysis of Hsp 90 variable region products of three races not showed any differences respect to their thermotolerance and formed the clusters among the voltinism. The comparison of aminoacid sequences of B. mori Hsps with dipteran and other insect taxa revealed high percentage of identity growing with phylogenetic relatedness of species. The conserved domains of B. mori Hsps predicted, in which the Hsp 20.8 possesses ${\alpha}-crystallin$ domain and Hsp 90 holds HATPase and Hsp 90 domains.

Effects of Silkworm Powder, Mulberry Leaves and Mulberry Root Bark Adminstered to Rat on Gastrointestinal Function (누에분말, 뽕잎 및 상백피 투여가 흰쥐의 장관기능에 미치는 영향)

  • Lee, Heui-Sam;Kim, Sun-Yeou;Lee, Yong-Ki;Lee, Won-Chu;Lee, Sang-Duck;Moon, Jae-Yu;Ryu, Kang-Sun
    • Journal of Sericultural and Entomological Science
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    • v.41 no.1
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    • pp.29-35
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    • 1999
  • This experiment was carried out to investigate the effect of silkworm powder, mulberry leaves and mulberry root bark administered to S.D. rat on gastrointestinal function. Plot containing ten percent sericultural products(silkworm powder, mulberry leaves and mulberry root bark) was supplied with S.D. rat. The food efficiency ratio(FER) of S.D. rat fed with sericultural products were 0.1486~0.1573. The transit time also were 512.5~574.0 minutes, and transit speed were 25.05~29.11 mm/min. The pH of S.D. rat's feces fed with sericultural products were 5.95~6.72. The daily amount of S.D. rat's feces were 4.12~5.42g. As above results, sericultural products was evaluated to improve the function of S.D. rat's gastrointestine.

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Mulberry popcorn disease occurrence in Korea region and development of integrative control method

  • Ju, Wan-Taek;Kim, Hyun-Bok;Sung, Gyoo-Byung;Park, Kwang-Young;Kim, Yong-Soon
    • International Journal of Industrial Entomology and Biomaterials
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    • v.33 no.1
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    • pp.36-40
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    • 2016
  • Mulberry fruits also have tremendous potential for providing various valuable industrial products of very high economic value for human beings. Nevertheless, through global warming, the popcorn disease caused by sclerotia forming fungi reduces the productivity of mulberry fruits in worldwide. So, in this study, we investigated damage ratio of mulberry popcorn disease in mulberry fruit production farm (Buan, Jeongueb, Sangju, Gochang in Korea). In Jeonbuk Buan, popcorn disease rate was the highest about 30%, on the other hand, in case of Gyungbuk Sangju and Jeonbuk Gochang, not damage. Also, we investigated about popcorn disease prevention by various of chemical treatment methods.