All phototrophic processes require light as the energy source for photosynthesis. Therefore, photo-bioreactors employed for research of these processes (e.g. measurement of kinetic parameters, response to light/dark cycles and to different light colours) on a laboratory scale need highly controlled artificial illumination. Over the past few years there has been rapid development of more powerful LEDs with a wide range of spectral distribution. Application of LEDs in photo-biotechnology offers considerable advantages over the use of conventional lamps such as higher light intensity and flexibility for different reactor geometries. Light/dark cycles and dimming can be easily regulated by PC. |
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