Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
calculation (if not (Q)SAR)
Remarks:
Constituents approach and reference to annex IV of REACh.
Adequacy of study:
key study
Study period:
Not relevant
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
If all constituents of the substance are clearly known as readily biodegradable, the substance itself can be considered as readily biodegradable.
Moreover, the scientific knowledge about the constituents is very advanced, notably their metabolism in living organisms, from microorganisms to human.

Data source

Reference
Reference Type:
other: Statement based on Annex IV/V of REACh.
Title:
Readily biodegradability of Invert Sugar: Statement based on a constituents’ (Glucose, Fructose and Sucrose) approach.
Author:
RHDHV
Year:
2018
Bibliographic source:
RHDHV
Report Date:
2018

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Constituents and substance are part of Annex IV/V of REACh.

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): invert sugar

Study design

Oxygen conditions:
aerobic/anaerobic
Inoculum or test system:
activated sludge (adaptation not specified)
Details on inoculum:
Any type of inoculum is able to use glucose, fructose and water as substrate.
Reference substance
Reference substance:
not required

Results and discussion

% Degradation
Key result
Parameter:
% degradation (CO2 evolution)
Remarks:
equivalent to
Value:
>= 100
Remarks on result:
other: Scientific knowledge on sugar metabolism.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
readily biodegradable
Conclusions:
Based on the extended scientific knowledge on the metabolism of the constituents glucose/fructose/and water, this substance is concluded as readily biodegradable.
Executive summary:

Based on the extended scientific knowledge on the metabolism of the constituents glucose/fructose/and water, this substance is concluded as readily biodegradable.