I want to add sodium selenate to the growth medium of spirulina and chlorella to increase the nutritional values so i want to know safe concentrations of sodium selenate and add it to the growth media.
Dear Abdelgawad,
Sodium selenite concentrations below 400 mg l1 were found to stimulate algal growth, especially in the range of 0.5–40 mg/l. 500 mg/l or more of Sodium selenite was reported toxic to S. platensis and it resist higher selenite by reducing toxic Se(IV) to nonsoluble Se(0).
Please find a couple of papers in this regard.
1. Bioeffects of selenite on the growth of Spirulina platensis and its biotransformation
by Zhi-Yong Li,Si-Yuan Guo and Lin Li
2. Production of Chlorella biomass enriched by selenium and its use in animal nutrition: a review by Jiří Doucha , Karel Lívanský, Václav Kotrbáček and Vilém Zachleder
Good luck!!
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