| Influence of amino nitrogen in the culture medium enhances the production of delta-endotoxin and biomass of Bacillus thuringiensis var. israelensis for the large-scale production of the mosquito control agent. | |
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MedLine Citation:
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PMID: 18509685 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We reported here the role of amino nitrogen in the commercial production of Bacillus thuringiensis var. israelensis media design. The insect pathogen B. thuringiensis var. israelensis was cultured in different media containing varying initial levels of amino nitrogen sources obtained from three different commercial venders. The biomass, mosquito larval toxicity and spore count produced were measured during the fermentation process. The results showed that the higher level of initial amino nitrogen concentrations in the medium led to higher yield of biomass (dry weight 4.78 g l(-1)), larvicidal activity (LC(50) 18.52 ng ml(-1)) and spore count (3.24 x 10(11) CFU ml(-1)). Similarly decreasing the initial amino nitrogen concentration in the medium led to a decreased biomass (dry weight 1.64 g l(-1)), larvicidal activity (LC(50) 27.01 ng ml(-1)) and spore count (3.7 x 10(10) CFUml(-1)). |
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Authors:
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G Prabakaran; S L Hoti |
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Publication Detail:
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Type: Journal Article Date: 2008-05-29 |
Journal Detail:
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Title: Journal of industrial microbiology & biotechnology Volume: 35 ISSN: 1367-5435 ISO Abbreviation: J. Ind. Microbiol. Biotechnol. Publication Date: 2008 Sep |
Date Detail:
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Created Date: 2008-08-20 Completed Date: 2008-12-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9705544 Medline TA: J Ind Microbiol Biotechnol Country: England |
Other Details:
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Languages: eng Pagination: 961-5 Citation Subset: IM |
Affiliation:
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Vector Control Research Centre (Indian Council of Medical Research), Indira Nagar, Puducherry, 605006, India. gprabha_99@yahoo.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aedes*
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drug effects Animals Bacillus thuringiensis / drug effects*, growth & development Bacterial Proteins / biosynthesis*, toxicity Biomass* Culture Media Endotoxins / biosynthesis*, toxicity Hemolysin Proteins / biosynthesis*, toxicity Insecticides* Larva / drug effects Lethal Dose 50 Mosquito Control* Nitrogen / analysis, pharmacology* Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Bacterial Proteins; 0/Culture Media; 0/Endotoxins; 0/Hemolysin Proteins; 0/Insecticides; 0/insecticidal crystal protein, Bacillus Thuringiensis; 7727-37-9/Nitrogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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