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Exposure of Daphnia magna to Xanthan lyase, batch PPE55581 gave EC50 value of greater than 1761.4 mg enzyme concentrate dry matter/L (equivalent to 100 mg aep/L). The No Observed Effect Concentration (NOEC) was the highest concentration tested, 1761.4 mg enzyme concentrate dry matter/L (equivalent to 100 mg aep/L).


Exposure of Raphidocelis subcapitata to Xanthan lyase, batch PPE55581 revealed an ErC50 299.4 mg enzyme concentrate dry matter/L (equivalent to 17 mg active enzyme protein/L). NOEC for both growth rate and yield was 7 mg enzyme concentrate dry matter/L and LOEC was 42.3 mg enzyme concentrate dry matter/L. Yield EbC50 was 42.3 mg enzyme concentrate dry matter/L.

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