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Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
pentyl 6-deoxy-alpha-L-mannopyranoside
EC Number:
700-713-3
Cas Number:
83161-22-2
Molecular formula:
C11H22O5
IUPAC Name:
pentyl 6-deoxy-alpha-L-mannopyranoside
Details on test material:
For technical reason (solubility), APRC5 was diluted at 30% in a water/glycerol (1/5) mixture
This mixture corresponds to the industrial form.

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge (adaptation not specified)
Duration of test (contact time):
28 d
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption

Results and discussion

Test performance:
rates of degradation at 28 days are between 75 and 85%.
% Degradation
Parameter:
% degradation (O2 consumption)
Value:
> 75
Sampling time:
28 d

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable
Conclusions:
APRC5 is readily biodegradable (>75% after 28 days)

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