Categories: All - efficiency - density - absorption

by Иван Иванов 5 years ago

258

THE DEFINITION OF EFFICIENCY PHOTOBIOSYNTHESIS AT DIFFERENT DENSITIES OF THE SPIRULINA PLATENSIS CULTURE’’

The study investigates the efficiency of photobiosynthesis in Spirulina platensis at varying culture densities. Utilizing tools like the KFK-2 colorimeter and Uniko 4802 spectrophotometer, researchers measured key parameters such as the energy absorption coefficient and caloric value of the biomass.

THE DEFINITION OF EFFICIENCY PHOTOBIOSYNTHESIS AT DIFFERENT DENSITIES OF THE SPIRULINA PLATENSIS CULTURE’’

THE DEFINITION OF EFFICIENCY PHOTOBIOSYNTHESIS AT DIFFERENT DENSITIES OF THE SPIRULINA PLATENSIS CULTURE

Results and discussion

The average caloric content of 1 g of S. platensis biomass is 5 kcal or 20.86 kJ
on the surface of the culture, drops about 1.09 W PAR
maximum productivity was 0.23 g DM / (l • day)

Material and methods

Concentration photoelectric colorimeter KFK-2
Uniko 4802 spectrophotometer dual beam
Installation for the cultivation of microalgae
object of study

Spirulina (Arthrospira) platensis


Conclusion

Efficiency of photobiosynthesis, 5.09%
Absorption coefficient, a sp. = 0.97
The density of the culture, B, 0,39 g SV / l

Key words

caloric value of biomass
energy absorption coefficient
Buger-Lambert-Beer law