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Table 4 Hydrolysis performance of the 17 cloned β-galactosidases tested on substrates lactose, lactulose and d-galactotriose

From: Characterization of GH2 and GH42 β-galactosidases derived from bifidobacterial infant isolates

  1. Key to colour coding: Substrate hydrolysis observed (green), no hydrolysis (white) and substrate not assayed (grey). Results of X-gal and ONPG assays are also reported for comparative purposes