NDLI: Dissolved oxygen as principal parameter for conidia production of biocontrol fungi Trichoderma viride in non-Newtonian wastewater

Content Provider	Springer Nature Link
Author	Verma, M. Brar, Satinder K. Tyagi, R. D. Surampalli, R. Y. Valéro, J. R.
Copyright Year	2006
Abstract	Dissolved oxygen (DO) concentration was selected as a principal parameter for translating results of shake flask fermentation of Trichoderma viride (biocontrol fungi) to a fermenter scale. All fermentations were carried out in a 7.5 l automated fermenter with a working volume of 4 l. Fermentation performance parameters such as volumetric oxygen transfer coefficient (k L a), oxygen uptake rate (OUR), rheology, conidia concentration, glucose consumption, soluble chemical oxygen demand, entomotoxicity and inhibition index were measured. The conidia concentration, entomotoxicity and inhibition index were either stable or improved at lower DO concentration (30%). Variation of OUR aided in assessing the oxygen supply capacity of the fermenter and biomass growth. Meanwhile, rheological profiles demonstrated the variability of wastewater during fermentation due to mycelial growth and conidiation. In order to estimate power consumption, the agitation and the aeration requirements were quantified in terms of area under the curves, agitation vs. time (rpm h), and aeration vs. time (lpm h). This simple and novel strategy of fermenter operation proved to be highly successful which can be adopted to other biocontrol fungi.
Starting Page	941
Ending Page	952
Page Count	12
File Format	PDF
ISSN	13675435
Journal	Journal of Industrial Microbiology and Biotechnology
Volume Number	33
Issue Number	11
e-ISSN	14765535
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-08-15
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Biocontrol agents Conidia Dissolved oxygen Rheology Starch industry wastewater Trichoderma viride Microbial Genetics and Genomics Microbiology Bioinformatics Biochemistry Genetic Engineering Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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