Registration Dossier
Registration Dossier
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EC number: 284-511-6 | CAS number: 84929-27-1 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Vitis vinifera, Vitaceae.
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Grape, red, ext.
- EC Number:
- 284-511-6
- EC Name:
- Grape, red, ext.
- Cas Number:
- 84929-27-1
- IUPAC Name:
- 5-[(1E)-2-(4-hydroxyphenyl)ethenyl]benzene-1,3-diol; 5-[(2R,3R)-6-hydroxy-2-(4-hydroxyphenyl)-4-[(1E)-2-(4-hydroxyphenyl)ethenyl]-2,3-dihydro-1-benzofuran-3-yl]benzene-1,3-diol
- Test material form:
- solid
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, adapted
- Remarks:
- (concentration in the test 25.0 mg dry matter/L)
- Duration of test (contact time):
- ca. 28 d
Results and discussion
% Degradationopen allclose all
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 11
- Sampling time:
- 28 d
- Remarks on result:
- other: not readily biodegradable as the criterion of reaching 60% of degradation is not met
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- ca. 68
- Sampling time:
- 8 d
- Remarks on result:
- other: As expected the positive control is readily biodegradable
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- For the test item Palmitoyl grapevine shoot extract only 11% biodegradation was observed after 28 days. The 10-day window could not be determined. The criterion of reaching 60% of degradation is not met. Therefore Palmitoyl grapevine shoot extract is considered as not readily biodegradable.
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