Effect of carbon and nitrogen sources on growth and solasodine production in batch suspension cultures of Solanum eleagnifolium Cav. |
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Authors: | Nigra H. M. Alvarez M. A. Giulietti A. M. |
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Affiliation: | (1) Biotecnología Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, (1113) Junín 956, Buenos Aires, República Argentina |
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Abstract: | The effect of inoculum size, carbon sources (fructose, glucose, maltose, sucrose), nitrate and ammonia on solasodine production by Solanum eleagnifolium Cav. was studied. The specific growth rate was estimated to be 0.15–0.20 d-1 with all sugars tested at a concentration of 90 mM. Sucrose (180 mM) produced the highest biomass value (about 2.8 mg DW ml-1) while the lowest one was produced by maltose. Although solasodine productivity values after 11 days of culture were similar for all sugars tested, the maximum values of productivity (0.9 mg g-1 d-1) were achieved after 6 days of culture with sucrose (180 mM). Solasodine productivity of cultures conducted with a large inoculum (20% w/v fresh material) was double that with a small inoculum (10% w/v fresh material). |
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Keywords: | solasodine Solanum eleagnifolium Cav. batch suspension culture carbon source nitrogen source |
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