Spirulina is a super concentrated, highly available source of nutrients, which helps in enhancing the nutrition of the foods eaten with it. Called superfoods because of an array of health benefits associated with it. It is about 65% complete protein, and the remaining is packed with antioxidants, essential omega-3 fatty acids and other compounds encapsulated with healthful anti-inflammatory, anticancer and antiviral properties present as you consume them. As a blue-green algae, it contains a unique nutritional value, since the evolution of blue-green algae split from green plants approximately about a billion years ago.
Individuals who include spirulina in their diet testified that it can greatly improve stamina, raise and levels out mood, and speeds up the healing process. The first two effects are eventually consistent with clinical studies that show a large reduction in the glycemic index of foods eaten even with a small amount of spirulina consumption.
Fresh spirulina as superfoods, once removed from the alkaline environment of the tank, is just like the raw eggs in its perishability – it should be eaten or must be put in the refrigerator within an hour or so of harvest. It will only last in the fridge for up to 3 days. If it is frozen, it will last indefinitely; if dehydrated and kept dry, it will last for about a year, longer if it will be kept in an airtight container. It is not hard to recognize if it is not preserved well or if it does go bad because it surely smells like a rotten egg.
The plant can also be grown with artificial lights. As a general rule, algal plant absorbs the wavelengths that are not definitely present in its apparent color, which is made up by the wavelengths that it eventually bounces out without absorbing. Blue-green algae such as spirulina have this special accessory pigment called phycocyanins and allophycocyanins, which allows the plant to capture more red and orange light compared to the green plants. They do also have the chlorophyll so they can also use blue light.
For these reasons, ordinary grow lights that are optimized in growing green land plants are not particularly practical in growing spirulina even though they will work. A light with more red and orange color will be more efficient for them to grow, as a higher fraction of the light used will be absorbed. Another approach would be using white light supplemented by a red-orange color light source.