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Description

The IAEA-392 Algae material was prepared by the Analytical Quality Control Services of the International Atomic Energy Agency in co-operation with the Institute of Microbiology, Academy of Sciences of the Czech Republic in Trebon, during 1995. The IAEA-392 algae material (type: Scenedesmus obliquus 208) was produced under standard outdoor culture conditions. Mineral nutrients were prepared from p.a. chemicals and added as required to maintain the optimum balanced composition of the nutrient medium in the growing culture. After harvesting, the algae were stored in a coupled tank and continuously spray dried at moderate venting and temperature avoiding a damage of the cell structure. The bulk algae material and the sealed bottles were treated with gamma ray irradiation with a total dose of 25 kGy using a Co-60 source to improve long-term stability of the material by reducing microbial action.