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Algae grows in nature, but can also be cultivated in photobioreactor. We tell you more about this emerging trend.
Algae in an open pond systemMany algae species are currently grown in an open pond system. Compared to an open (pond) system, a photobioreactor has a low risk of contamination and virtually no CO2 loss. We explain how culture in a photobioreactor works.
Algen in een fotobioreactorIn a photobioreactor, light is used, CO2 and specific nutrients are used to create photosynthesis. Specific conditions for the algae can be controlled in a fully automated photobioreactor. Think, for example, of the optimal temperature, the nutrient supply, pH value, CO2 supply and biomass concentration in relation to the available light and more. These controlled conditions may differ for the different algae species and must therefore be perfectly matched to the species. A photobioreactor generates a higher biomass concentration, faster growth and a completely clean algae culture compared to an open pond system.
Optimal biomass concentrationHowever, algae must be grown in ideal conditions. The most optimal way of biomass concentration means that all available light is absorbed by the biomass. An algae culture that is too dense causes a larger dark zone and this can lead to loss of productivity through respiration. On the other hand, too low a biomass concentration leads to loss of photons. This is especially the case during periods of high light intensity.
Positive research resultsStudies done on the growth of algae in a photobioreactor indicate a positive effect on growth compared to open (pond) systems. We tell you more about this on our site. You can also contact us without obligation to provide more information.
About LgemAlgae can do a lot for our health. They have high levels of vitamins, minerals, proteins and other important substances for our body. Because of this emerging trend, growing algae is more important than ever. Growing algae can be done better, in an easy and affordable way. Lgem designs and produces reliable and innovative systems for growing algae and we control all the biochemical processes involved. It is important to us that our systems are low labour-intensive, energy efficient and scalable. |
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Frequently asked questions
What is a photobioreactor and how does it work?▼
A photobioreactor is a controlled system that uses light, CO2, and nutrients to cultivate algae through photosynthesis. It automates conditions like temperature, pH, nutrient supply, and light exposure, resulting in higher biomass concentration and faster growth compared to open pond systems.
What are the advantages of photobioreactor cultivation over open pond systems?▼
Photobioreactors offer low contamination risk, virtually no CO2 loss, higher biomass concentration, faster growth rates, and completely clean algae cultures. They provide precise control over all growing conditions for optimal results.
Why is optimal biomass concentration important in algae cultivation?▼
Optimal biomass concentration ensures all available light is absorbed by the algae. Too dense cultures create dark zones reducing productivity, while too low concentrations waste photons during high light periods, both reducing overall growth efficiency.
Can different algae species be grown in the same photobioreactor?▼
Different algae species require different controlled conditions to thrive. While photobioreactors can be adjusted for specific species, the conditions must be perfectly matched to each species' unique requirements for optimal growth.
What nutritional benefits do cultivated algae provide?▼
Algae grown in photobioreactors contain high levels of vitamins, minerals, proteins, and other important substances beneficial for human health, making them increasingly valuable as the emerging trend of algae cultivation grows.