Aquaculture is the set of activities and techniques whose purpose is creating new species both animal and vegetal such as fish, prawns, algae, seaweed. It is an important economic activity of food and animal protein production, matching global fishery levels. In aquaculture, microalgae are the base of the food chain. Microalgae are the direct food of many mollusks, prawns, and some fish species. They also participate indirectly as a food source fish and crustaceans higher up on the food chain.
They are an important source of polyunsaturated fatty acids (PUFAs), proteins, minerals, vitamins and antioxidants.
Microalgae have been used as food in places in Africa, Asia or America or as dietary supplement for centuries. They are rich in substances which are beneficial for our health and have great potential to prevent many diseases. The most popular species of microalgae for human consumption are Chlorella sp. and Spirulina (cyanobacteria). From the salty water specie Haematococcus pluvialis,, the natural pigment astaxanthin (one of the most powerful antioxidants currently known)is extracted and gives the reddish/pink colour to salmon, flamingos and crustaceans. From the specie Dunaliella sp. the pigment ß- carotene can be extracted, and used in many natural drinks and as an antioxidant.
Did you know that aquarium fish require pigments in their fodder and that most of those pigments come from micro-algae?
Microalgae are a source of natural pigments such as chlorophyll a and b, astaxanthin, β-Carotene, fucoxanthin, zeaxanthin, lycopene, phycobilins, phycoerythrin, phycocyanin, etc. There are a lot of studies that prove the beneficial effects of using microalgae in feeds for the poultry, pork, and beef industry, and also for domesticated pets.
Microalgae have mechanisms to absorb inorganic and organic compounds dissolved in the water as raw materials for their metabolism. The great capacity of adaptation of these organisms and their high growth rate allow the possibility of using them to treat wastewater from anthropogenic industries or aquatic systems which require some sort of remediation.
Nitrogen compounds, phosphates, heavy metals and others can be metabolized or absorbed by microalgae and removed from the water. The heavy metals or non-biodegradable compounds can be absorbed by microalgae to lower or eliminate them from affected microsystems.
They also contribute to a greater oxygenation of aquatic systems.
Some of the most valuable natural compounds for the cosmetic- pharmatheutical sector are extracted from microalgae. The growing popularity of this activity is due to its great potential, the discovery of new species and the improvement of technology for microalgae production.
We design and manufacture high performance photobioreactors for lab or industry applications. Systems integration, supervision and control of microalgae production plants
Mitigation of CO2
The photosynthetic capacity of microalgae is 3 to 5 superior to terrestrial plants, allowing these organisms to be responsible for the absorption of at least 60% of all global emissions of CO2. For each Kg of microalgae biomass generated, 1,85 Kg of CO2 is absorbed. In Aqualgae we develop projects with industries whose CO2 emissions are not very high, with the purpose of mitigating the environmental impact caused and contribute to the liberation of O2.
DELEGATION OF PORTUGAL
AQUALGAE - Portugal
Rua Arquitecto Ventura Terra, 1
4900-303 Viana do Castelo (PT)
T: (+351) 96 519 22 32
DELEGATION OF SPAIN
Calle Newton 10, 1ºB
15008 A Coruña (ES)
T: (+34) 647 743 310