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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Remarks:
Sample sent to INTOX PVT. LTD. , 375, Urawade, Tal. Mulshi, Dist. Pune, Maharashtra, 412115, India.
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Freshwater Alga and Cyanobacteria, Growth Inhibition Test)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
Emblic, ext.
EC Number:
289-817-3
EC Name:
Emblic, ext.
Cas Number:
90028-28-7
IUPAC Name:
Beta-Glucogallin and Gallic acid are the main constituents of Emblica officinalis extract.
Test material form:
solid

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
72 h

Test conditions

Test temperature:
24.7°C - 25.5°C
pH:
7.60 - 8.18
Reference substance (positive control):
not specified

Results and discussion

Effect concentrations
Key result
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth rate

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The Growth Inhibition value i.e. EC50 value for Emblica officinalis Extract in fresh water unicellular green algae Pseudokirchneriella subcapitata at 72hrs exposure period is estimated to be greater than 100 mg/L. The Study is performed as per OECD Guideline for testing of Chemicals Section 2, No. 201.