Effects of carbon source, phosphorus concentration, and several micronutrients on biomass and geosmin production by Streptomyces halstedii
| Autor: | W T Blevins, K K Schrader |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Iron
Potassium chemistry.chemical_element Biomass Bioengineering Naphthols Zinc Applied Microbiology and Biotechnology chemistry.chemical_compound Dry weight Botany medicine Micronutrients Food science Phosphorus Maltose Geosmin Carbon Streptomyces Trace Elements Kinetics chemistry Calcium Mannitol Copper Biotechnology medicine.drug |
| Zdroj: | Journal of Industrial Microbiology and Biotechnology. 26:241-247 |
| ISSN: | 1476-5535 1367-5435 |
| DOI: | 10.1038/sj.jim.7000121 |
| Popis: | The effects of various carbon sources, phosphorus concentration, and different concentrations of the micronutrients calcium, cobalt, copper, iron, manganese, potassium, and zinc were determined on biomass dry weight production, geosmin production, and geosmin/biomass (G/B) values for Streptomyces halstedii, a geosmin-producing actinomycete isolated from the sediment of an aquaculture pond. Of the substrates tested, maltose as a sole carbon source promoted maximal growth by S. halstedii while mannitol promoted maximal geosmin production, and galactose yielded the highest G/B values. Fish-food pellets and galactose were poor substrates for growth. Increasing phosphorus concentrations enhanced geosmin production and G/B values. Of the seven micronutrients tested, zinc, iron, and copper had the most profound effects on biomass and geosmin production. Increasing zinc concentrations promoted biomass production while inhibiting geosmin production and G/B values; increasing concentrations of copper and iron inhibited biomass and geosmin production. Increased copper concentrations had the greatest effect in preventing growth and geosmin production by S. halstedii. |
| Databáze: | OpenAIRE |
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