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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Arabinofuranosidase was tested for aquatic toxicity in the algal growth inhibition assay and the daphnia immobilisation assay. No fish test was performed, but read-across to alpha-amylase an enzyme belonging to the same sub-subclass was applied for this end point.

For fish: Alpha-amylase was not toxic at the tested concentration of 100 mg/L (58.3 mg aep/L) and thus the NOEC was determined to be 100 mg/L (58.3 mg aep/L). The LC50 value could not be determnined due to the absence of toxicity of the test compound at the tested concentration. Since the two enzymes belong to the same enzyme subsubclass, similar results can be expected for the arabinofuranosidase.

For crustacean Daphnia magna: Under the conditions of the test, arabinofuranosidase, batch PPH40331 was found not to be toxic to Daphnia magna at a nominal concentration up to 100 mg TOS/L (27.2 mg aep/L) after 48h exposure. Thus, no 48h EC50 could be calculated and must be > 100 mg TOS/L (> 27.2 mg aep/L). NOEC is 27.2 mg aep/L.

For algae: Arabinofuranosidase, batch PPH40331 up to a concentration of 100 mg/L (27.2 mg aep/L) was not toxic to Pseudokirchneriella subcapitata as no significant growth inhibition was observed in the present test system. Thus no 72h ErC50 could be calculated and must be > 100 mg TOS/L (> 27.2 mg aep/L). NOEC is 27.2 mg aep/L.

Additional information