Among 18 tested strains of Claviceps spp., 7 produced significant amounts of exocellular polysaccharide (EPS). The maximum production of EPS was found in fermentation broth of Claviceps viridis. The kinetics of growth, substrate consumption, and EPS production in the batch, aerobic, submerged culture of this fungus were investigated in detail. The experimental data were processed by a simple mathematical model describing mass balance of growth, substrate consumption, formation of intermediates, and production of EPS. The parameters of the model were estimated from data obtained in cultivation performed in flasks and two laboratory fermentors of different size. Physiological similarity was obtained during process scale-up in volumetric ratio 1:100. The sugar consumption efficiency (52%) and observed EPS productivity (1.9 kg/m3 per d) were comparable with literature data.

• MeSH
• biologické modely MeSH
• biomasa MeSH
• Claviceps růst a vývoj   metabolismus   MeSH
• fermentace MeSH
• glukany biosyntéza   MeSH
• kinetika MeSH
• kultivační média MeSH
• kyslík metabolismus   MeSH
• rozpustnost MeSH
• sacharosa metabolismus   MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• glukany MeSH
• kultivační média MeSH
• kyslík MeSH
• sacharosa MeSH