- Zeomic and antimicrobial-related terminology
- Antimicrobial agent and antimicrobial test terminology
- Virus terminology
- Odor-eliminating test terminology
- Test terminology
- Approval/license and certification terminology
Terminology: Toxicity test with single cell green algae Selenastrum
The objective of this test is to examine the toxicity of a test substance to aquatic organisms by using Selenastrum, a typical species of Algae, as a test organism. The OECD specifies the 4 categories of aquatic organisms as acceptable test subjects: fish, Daphnia, algae, and activated sludge.
A test was conducted with green algae Selenastrum as a test organism and the number of green alga cells (cells/ml) was measured everyday after Zeomic application to evaluate the number of cells after 72 hours and a daily cell increase rate as per OECD Test Guideline 201.
[Test Results for Zeomic]
As a result, it was found that the growth of Selenastrum was suppressed completely at 325μg/L The Zeomic concentration was 102μg/L, when the Selenastrum cell density finally reached 54%.