scholarly journals Effects of carbon and nitrogen sources on the induction and repression of chitinase enzyme from Beauveria bassiana isolates

2010 ◽  
Vol 9 (47) ◽  
pp. 8092-8099 ◽  
Author(s):  
Dhar Priyanka ◽  
Kaur Gurvinder
Keyword(s):  
Beauveria Bassiana ◽  
Nitrogen Sources ◽  
Carbon And Nitrogen Sources ◽  
Carbon And Nitrogen ◽  
Beauveria Bassiana Isolates

scholarly journals EFFECT OF DIFFERENT CARBON AND NITROGEN SOURCES ON SPORULATION OF BEAUVERIA BASSIANA ROMANIAN STRAINS

2021 ◽  
Vol 14 ◽  
pp. 24-31
Author(s):  
Daniel Cojocaru ◽  
Cristina-Maria Lumînare
Keyword(s):  
Beauveria Bassiana ◽  
Culture Medium ◽  
Nitrogen Sources ◽  
Fungal Isolate ◽  
Artificial Substrates ◽  
Scale Production ◽  
Carbon And Nitrogen Sources ◽  
Carbon And Nitrogen ◽  
Liquid Fermentation ◽  
Industrial Scale Production

A requirement for industrial-scale production of mycoinsecticides is the capacity of fungal strains to produce infective and stable propagules on inexpensive artificial substrates, with either solid-state or submerged liquid fermentation methods. The ability of entomopathogenic fungi to use different nutritive substrates is one of the factors influencing their effectiveness.Vegetative growth and sporulation yield depend on the composition of the culture medium and are specific to each fungal isolate. Our study has focused on fungal inoculum produced in artificial media. Native Beauveria bassiana strains was cultivated in liquid medium involving variations in carbon and nitrogen sources and the production of spores was evaluated. The results revealed that among the carbon and nitrogen sources tested, zaharose and ammonium nitrate were most efficiently used for the production of B.bassiana spores in submerged liquid fermentation.

scholarly journals High level production of laccases and peroxidases from the newly isolated white-rot basidiomycete Marasmiellus palmivorus VE111 in a stirred-tank bioreactor in response to different carbon and nitrogen sources

2018 ◽  
Vol 69 ◽  
pp. 1-11 ◽  
Author(s):  
Willian Daniel Hahn Schneider ◽  
Roselei Claudete Fontana ◽  
Simone Mendonça ◽  
Félix Gonçalves de Siqueira ◽  
Aldo José Pinheiro Dillon ◽  
...  
Keyword(s):  
Nitrogen Sources ◽  
White Rot ◽  
Stirred Tank ◽  
Carbon And Nitrogen Sources ◽  
Stirred Tank Bioreactor ◽  
Carbon And Nitrogen ◽  
High Level ◽  
Level Production

Growth Conditions of a Thermophilic Geobacillus sp. as an Enhanced Oil Recovery Material

2012 ◽  
Vol 496 ◽  
pp. 457-460
Author(s):  
Xiang Ping Kong
Keyword(s):  
Enhanced Oil Recovery ◽  
Bacterial Growth ◽  
Oil Recovery ◽  
Nitrogen Sources ◽  
Growth Conditions ◽  
Good Growth ◽  
Strictly Aerobic ◽  
Aerobic Bacterium ◽  
Carbon And Nitrogen Sources ◽  
Carbon And Nitrogen

The growth conditions of a Geobacillus sp. were investigated by single-factor experiments. The strain was strictly aerobic bacterium, and could grow on hydrocarbons as the sole carbon source. The optimum carbon and nitrogen sources were 3.0% sucrose and 0.20% KNO3, respectively. The range of temperature, salinity and pH for the bacterial growth was 35-70 °C, 0-10% NaCl and 5.5-9.5, and good growth was obtained at 35-65 °C, 0.5-8% NaCl and 6.0-9.0, respectively. Particularly, the optimum temperature for the bacterial growth was between 50 °C and 60 °C. The strain had wide adaptability to the extreme conditions, and may be potentially applied to microbial enhanced oil recovery and oil-waste bioremediation technology.

scholarly journals Optimising carbon and nitrogen sources for Azotobacter chroococcum growth

2011 ◽  
Vol 10 (15) ◽  
pp. 2951-2958 ◽  
Author(s):  
Gutieacute rrez Rojas Ivonne ◽  
Beatriz Torres Geraldo Ana ◽  
Moreno Sarmiento Nubia
Keyword(s):  
Nitrogen Sources ◽  
Azotobacter Chroococcum ◽  
Carbon And Nitrogen Sources ◽  
Carbon And Nitrogen

Metabolic Flux Analysis and Optimal Control in the Process of Ectoine Fermentation

2011 ◽  
Vol 393-395 ◽  
pp. 851-854
Author(s):  
Lin Hua Zhang ◽  
Xin Zheng ◽  
Ya Jun Lang
Keyword(s):  
Optimal Control ◽  
Batch Fermentation ◽  
Metabolic Flux ◽  
Monosodium Glutamate ◽  
Nitrogen Sources ◽  
Flux Analysis ◽  
Key Factors ◽  
Carbon And Nitrogen Sources ◽  
Carbon And Nitrogen ◽  
Key Nodes

In this study, the metabolic network of ectoine by Halomonas venusta DSM 4743 was established. The key nodes to influence the ectoine fermentation in metabolic flux and the basis during optimal control of fermentation process were investigated. The results showed that G6P, α-KG and OAA nodes were the key factors to influence the synthesis of ectoine. The metabolic flux distributions at the key nodes were significantly improved and ectoine concentration was enhanced in ectoine fermentation by adopting monosodium glutamate as the sole carbon and nitrogen sources, feeding monosodium glutamate and supplying oxygen limitedly. The batch fermentation was carried out in 10 L fermentor , the concentration and yield of ectoine was 8.4 g/L and 0.1 g/g, respectively, which were increased by 2.8 and 2 times, by comparison with batch fermentation using glucose as carbon source.

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