Study of the LEDs Spectrums Influence on the Spirulina Platensis Growth in Batch Culture

摘要

In this research work, we mainly studied the influence of the spectra (from 400 nm to 700 nm) of different LED colors on the biomass production of microalgae Spirulina platensis. Spirulina platensis has a short reproductive cycle with remarkable nutritional qualities. The results show that spirulina cells are sensitive to spectrum and the amount of light. Indeed the red and blue LEDs respectively give the highest and the lowest biomass. Moreover, we have tested with 660 nm LED, many lighting level on spirulina growth. This experiment permit us to study photoinhibition and to determine optimal lighting level for spirulina.