The Science and Technology of Microalgae Cultivation
Just like all plants, each species of microalgae grows best under certain conditions. There is an ideal combination of temperature, nutrient mix, pH and other factors for each species.
Most microbes grow well in water. Microbes such as bacteria and fungi, which are grown commercially, are produced in water-filled, controlled bioreactors, otherwise known as fermenters. The ability to grow bacteria and fungi in fermenters at large scale has existed for centuries. In order to produce a product that is free of contamination and with consistent quality, the fermenter is closed, allowing a high degree of control over the growing environment. However, none of the organisms successfully cultivated via fermentation has been photosynthetic, i.e., dependent on light to grow.
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