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EC number: 232-877-2 | CAS number: 9032-08-0
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- September 30 to October 21, 2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 420 (Acute Oral Toxicity - Fixed Dose Method)
- Version / remarks:
- Dec. 2001
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- fixed dose procedure
- Limit test:
- yes
Test material
- Reference substance name:
- Active enzyme protein of Amylase, gluco- (EC no. 232-877-2, CAS no. 9032-08-0, EC name: glucan 1,4-alpha-glucosidase, Enzyme Class no. 3.2.1.3)
- IUPAC Name:
- Active enzyme protein of Amylase, gluco- (EC no. 232-877-2, CAS no. 9032-08-0, EC name: glucan 1,4-alpha-glucosidase, Enzyme Class no. 3.2.1.3)
- Reference substance name:
- Protein as a constituent of enzyme deriving from the fermentation or extraction process
- Molecular formula:
- Not available
- IUPAC Name:
- Protein as a constituent of enzyme deriving from the fermentation or extraction process
- Reference substance name:
- Inorganic salts as a constituent of enzyme deriving from the fermentation or extraction process
- Molecular formula:
- Not available. See remarks.
- IUPAC Name:
- Inorganic salts as a constituent of enzyme deriving from the fermentation or extraction process
- Test material form:
- liquid
- Details on test material:
- Substance type: UVCB
- Physical state: liquid
- Lot/batch No.: trg08050/52
- Expiration date of the lot/batch: At least stable until January 2011
- Stability under test conditions: The test material and dilutions in water (25% and 50%) are stable for
at least 5 hours at room temperature, 7 days at 4 degrees Celcius and 90 days at minus 20 degrees
of Celcius
- Storage condition of test material: minus 20 degrees of Celcius
Constituent 1
Constituent 2
Constituent 3
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- - Source: Taconic Europe, DK-4623 Lille Skensved, Denmark.
- Fasting period before dosing: Overnight
- Housing: Two animals per cage, transparent polycarbonate cages floor area 1500 cm2 – height 21 cm
- Weight at time of dosing: between 147-152 g
- Housing: In animal room with control of temperature and humidity
- Diet: Standard diet ad libitum
- Water: Tap water ad libitum
- Acclimation period: 5 days
- Temperature (°C): 18-24°C
- Humidity : 40-70 %
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- unchanged (no vehicle)
- Remarks:
- The liquid test material was dosed undiluted
- Details on oral exposure:
- Maximum Dose Volumen applied: 10 mL/kg
- Doses:
- Undiluted test material 10 mL/kg bw, corresponding to 1996.3 mg total protein/kg body weight (limit test).
- No. of animals per sex per dose:
- 5 (only females)
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Observations for clinical signs of effect: 15 minutes and 1, 3 and 6 hours and daily after dosing. Weighing:at arrival, on Days 1, 2, 3, 8 and 15
- Necropsy of survivors performed: yes
Results and discussion
- Preliminary study:
- Sighting study: The starting dose level was based on information from the Sponsor. One female animal was treated with 1996.3 mg total protein/kg body weight. As no evident signs of toxicity were observed in this animal, the main study was carried out at this dose level.
Effect levels
- Key result
- Sex:
- female
- Dose descriptor:
- other: Limit test - no effects were seen
- Effect level:
- > 1 996.3 mg/kg bw
- Based on:
- other: total protein
- Mortality:
- No mortality.
- Clinical signs:
- other: No clinical signs.
- Gross pathology:
- No abnormalities.
Applicant's summary and conclusion
- Interpretation of results:
- Category 5 based on GHS criteria
- Conclusions:
- No signs of toxicity were observed among the rats treated with a single oral dose of 1996.3 mg/kg based on total protein, which was the highest possible dose at dose volume 10 mL/kg, using the undiluted test item.
- Executive summary:
The objective of this study was to assess the acute toxicity of glucoamylase when administered as a single oral dose to rats followed by an observation period of 14 days. A preliminary sighting study using one female animal was included to estimate the dose effect for toxicity and to provide information on dose selection for the main study.
The study was conducted in accordance with the OECD Guideline No 420, “Acute Oral Toxicity – Fixed Dose Procedure”. The limit test was used. The test item was supplied as a brown liquid ready to use. The dose volume administered was 10 mL/kg.
The study was initiated with a sighting study at dose level 1996.3 mg/kg based on total protein, using one female animal. This was the highest possible dose level at dose volume 10 mL/kg, using the undiluted test item. On the basis of the results of the sighting study, the main study was performed in four additional female rats given a dose of 1996.3 mg/kg body weight. No clinical signs were observed and the overall body weight gain during the study was considered to be normal. The post-mortem inspection revealed no abnormalities.
In conclusion, no signs of toxicity were observed among the rats treated with a single oral dose of 1996.3 mg/kg based on total protein, which was the highest possible dose at dose volume 10 mL/kg, using the undiluted test item.
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