alpha-galactosidase: colorimetric method measuring p-nitrophenol released by action of alpha-galactosidase from p-nitrophenyl-alpha-galactopyranoside substrate,
alfa-galactosidase: colorimetrische methode die door inwerking van alfa-galactosidase uit p-nitrofenyl-alfa-galactopyranosidesubstraat vrijgemaakte p-nitrofenol meet,