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Feeding Green Algae 5


Hey everyone I am a undergrad working on a side experiment trying to grow some algae in a 3.8 L photobioreactor. When I was doing a little research into growing algae I found that you should supply the algae with nutrients such as nitrogen, potassium, and other minerals. The problem being I cant find anywhere on the world wide web how much nutrients (grams?) I should give to my growing algae....Any ideas?

Thanks - Dan

Wed October 13 2010 11:03:40 PM by DT1984 1811 views

Comments - 5

  • Oceanfront wrote:
    Thu October 14 2010 01:49:49 AM

    Aaron Baum probably both knows and would return an e mail. Oilgae Club member Manohar did a blog post here about him.

    If I had no way of knowing how much to feed algae, I'd throw in some greensand or PlanTea and see what happens.

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  • AlgaeNova wrote:
    Thu October 14 2010 01:37:48 PM

    You can`t generalize this I guess it depends a lot on the species you are trying to grow. But since algae productivity is quite high you will be able to find out the right nutrition relations quite fast.
    But the Huppert/Blasius/Stone Modell might help.

    Some other facts might help as well for the understanding of a correct and purposeful nutrition:

    Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis. It is derived from the Greek words chloros which means green and plast which means form ( in biological terms it can be more roughly translated as organelle or cell ). (Source ?WIKI)

    Within the Chloroplasts light energy will be transformed into chemical energy and all this in dependence of the Chlorophyll content. This reduces inorganic carbon (CO2) in the Calvin Cyklus to Polysaccharides (CHO) from which biomass, by the installation of nutrients, is synthesised.

    Chemical energy gained from the light reaction in the Thylakoides is regulated by the irradiated light energy and the concentration of chlorophyll in the photo systems

    The concentration of chlorophyll is steered through the irradiated light energy, the nutrient availability and the chemical energy required by Calvin Cyklus.

    The carbon fixation in Calvin Cyklus is controlled by the energy provided by the light reaction and the nutrient availability.

    The nutrient uptake is regulated by nutrient inquiry of the biomass synthesis and the cell-internal nutrient/carbon relation.

    The biomass synthesis is controlled by the nutrient availability and the availability of Polysaccharides from Calvin Cyklus.

    The mineralogical composition for a purposeful nutrition depends on all these factors and is different from specie to specie and also depending on environmental conditions.

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  • Larsyn wrote:
    Thu October 14 2010 02:13:15 PM

    Try matching your variety of algal with one of the formulas in the book "Algae Culture Technology
    " It seems to be a staring point.

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  • Natalia wrote:
    Thu October 14 2010 02:15:26 PM

    I guess Larsyn meant Starting point. Makes sense.
    thanks Larsyn. and thanks to Andres too for the long detailed explanation. I admire your involvement in the subject and commitment. Very impressed Andres Abhraham. Keep it up.

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  • DT1984 wrote:
    Sat October 16 2010 02:20:54 PM

    Thank you to everyone who commented, I appreciate the help.

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