Registration Dossier
Registration Dossier
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EC number: 232-615-7 | CAS number: 9001-57-4
Endpoint summary
Administrative data
Description of key information
Additional information
Enzymes, like β-fructofuranosidase, are generally hydrophilic proteins. The water solubility of enzymes is highly dependent on factors like pH, temperature, and on salts as well as stabilizing agents that are present in the aqueous environment. The solubility ofβ-fructofuranosidase at pH 7 and moderate salinity is expected to be in the range of 0.5 and 250 g/L. Consequently, a low log Pow can be assumed for the enzyme. Though experimental data on β-fructofuranosidase are not available, the assumption is supported by read-across data for the enzyme Glucoamylase with a log Pow of < -1.3 at 20 °C. The low log Pow in combination with the high molecular weight (30.9 - 270 kD) indicates a low bioavailability of the substance and thus a low potential for bioaccumulation. The low log Pow further indicates a low potential for adsorption. The enzyme β-fructofuranosidase is considered to be readily biodegradable based on experimental results available for a suitable read-across substance (99% in 28 d; OECD 301E). An extensive removal from wastewater in conventional STPs is expected. Therefore, abiotic degradation via hydrolysis is not considered a relevant degradation pathway. Furthermore, due to the low vapour pressure of the substance, evaporation and subsequent transportation through the atmosphere is not likely.
The physico-chemical properties ofβ-fructofuranosidase indicate a distribution to the aquatic compartment, if the substance is released to the environment. However, the substance is not expected to persist in the environment due to the ready biodegradability.
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