Nitrogen supplements effect on amylase production by Aspergillus niger using cassava whey medium
| Autor: | H. E. Eigbaredon, E. E. Imarhiagbe, C. E. Oshoma, M.J. Ikenebomeh . |
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| Rok vydání: | 2010 |
| Předmět: |
biology
Aspergillus niger food and beverages chemistry.chemical_element Biomass biology.organism_classification Applied Microbiology and Biotechnology Nitrogen chemistry.chemical_compound chemistry Biochemistry Sodium nitrate Amylase cassava whey Aspergillus niger yeast extract Biomass yield Genetics biology.protein Yeast extract Amylase Food science Agronomy and Crop Science Molecular Biology Biotechnology |
| Zdroj: | African Journal of Biotechnology; Vol 9, No 5 (2010) |
| ISSN: | 1684-5315 |
| Popis: | The production of amylase by Aspergillus niger on three cassava whey media in liquid shake culture was compared. The supplemented cassava whey (SCW) medium exhibited gave amylase activity of 495 U/ml. Biomass cropped was 1.63 g/l in the SCW medium. Yeast extract employed as a nitrogen supplement increased biomass yield of A. niger to 2.75 g/l with maximum amylase activity of 643 U/ml. Sodium nitrate (NaNO3) as nitrogen supplement had the lowest biomass yield of 0.77 g/l and amylase activity of 206 U/ml. Thus yeast extract as nitrogen supplement of cassava whey medium supported maximum production of amylase and biomass of A. niger. |
| Databáze: | OpenAIRE |
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