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- Title
The specifics of surfactants synthesis during nocardia vaccinii IMV B-7405 cultivation on mixed substrates.
- Authors
Kudrya, Nadiya; Pirog, Tatiana
- Abstract
Production of surface-active agents (surfactants) is highly promising direction in the industry, since such connections have several advantages over synthetic analogs. Surfactants are widely used in various industries (environmental technologies, food processing, agriculture, medicine). One approach of improving their biosynthesis is the combination of unequal energy substrates, avoiding unnecessary loss of carbon and energy, and increasing the conversion of carbon in biomass or practically valuable secondary metabolites. The possibility of intensification of surfactant synthesis in Nocardia vaccinii IMB ?-7405 on mixed substrates was investigated (hexadecane and glucose, ethanol and glucose, hexadecane and glycerol, glucose and glycerol). Concentration of each monosubstrate in the mixture was 0.5 and 1.0%. After cultivation process conventional surfactant concentration and emulsification index parameters were measured. Found that conventional surfactant concentration on mixed substrates was 2.1-3.5 times higher in comparison with the corresponding monosubstrates. The maximum values of conventional surfactant concentrations (4.4 and 4.8, respectively) were observed using a mixture of glucose to ethanol or glycerol. The dependence of the surfactant synthesis indexes on the nature of the carbon source in the medium for inoculum was set. The results confirm the effectiveness of the use of a mixture of growth substrates for surfactants N. vaccinii IMB ?-7405.
- Subjects
BIOSYNTHESIS; SURFACE active agents; NOCARDIA; MONOSACCHARIDES; ACTINOMYCETACEAE
- Publication
Ukrainian Food Journal, 2013, Vol 2, Issue 2, p203
- ISSN
2304-974X
- Publication type
Article