Use of a purified enzyme, comprising: a polypeptide having at least 10 amino acids selected from the position in the following sequence numbered accordingly when aligned as shown in Fig 1.2, with SEQ ID N0:2: M at residue 10; G at residue 47; G at residue 84; Yat residue 86; Yat residue 99; N at residue 102; K at residue 114; T at residue 127; G at residue 130; G at residue 132; G at residue 139; N at residue 156; D at residue 160; P at residue 164; G at residue 205; R at residue 277; R at residue 281; F at residue 287; G at residue 308; Q at residue 312; I at residue 317; R at residue 333; D at residue 340; G at residue 346; G at residue 349; G at residue 360; D at residue 363; D at residue 364; N at residue 367; H at residue 369; G at residue 370; T at residue 371; G at residue 396; E at residue 462; N at residue 463; T at residue 465; T at residue 467; P at residue 468; R at residue 483; G at residue 484; L at residue 486; T at residue 489; N at residue 498; I at residue 508; D at residue 513; W at residue 517; E at residue 519; G at residue 521; D at residue 525; I at residue 528; N at residue 531; F at residue 533; I at residue 549; P at residue 553; I at residue 573; A at residue 590; G at residue 595; N at residue 601; and, I at residue 629; and wherein the enzyme has at least 20 % identity with SEQ ID N0:2 when aligned with SEQ ID N0:2, as an alpha-galactosidase. a polypeptide having at least 10 amino acids selected from the position in the following sequence numbered accordingly when aligned as shown in Fig 1.2, with SEQ ID N0:2: M at residue 10; G at residue 47; G at residue 84; Yat residue 86; Yat residue 99; N at residue 102; K at residue 114; T at residue 127; G at residue 130; G at residue 132; G at residue 139; N at residue 156; D at residue 160; P at residue 164; G at residue 205; R at residue 277; R at residue 281; F at residue 287; G at residue 308; Q at residue 312; I at residue 317; R at residue 333; D at residue 340; G at residue 346; G at residue 349; G at residue 360; D at residue 363; D at residue 364; N at residue 367; H at residue 369; G at residue 370; T at residue 371; G at residue 396; E at residue 462; N at residue 463; T at residue 465; T at residue 467; P at residue 468; R at residue 483; G at residue 484; L at residue 486; T at residue 489; N at residue 498; I at residue 508; D at residue 513; W at residue 517; E at residue 519; G at residue 521; D at residue 525; I at residue 528; N at residue 531; F at residue 533; I at residue 549; P at residue 553; I at residue 573; A at residue 590; G at residue 595; N at residue 601; and, I at residue 629; and M at residue 10; G at residue 47; G at residue 84; Yat residue 86; Yat residue 99; N at residue 102; K at residue 114; T at residue 127; G at residue 130; G at residue 132; G at residue 139; N at residue 156; D at residue 160; P at residue 164; G at residue 205; R at residue 277; R at residue 281; F at residue 287; G at residue 308; Q at residue 312; I at residue 317; R at residue 333; D at residue 340; G at residue 346; G at residue 349; G at residue 360; D at residue 363; D at residue 364; N at residue 367; H at residue 369; G at residue 370; T at residue 371; G at residue 396; E at residue 462; N at residue 463; T at residue 465; T at residue 467; P at residue 468; R at residue 483; G at residue 484; L at residue 486; T at residue 489; N at residue 498; I at residue 508; D at residue 513; W at residue 517; E at residue 519; G at residue 521; D at residue 525; I at residue 528; N at residue 531; F at residue 533; I at residue 549; P at residue 553; I at residue 573; A at residue 590; G at residue 595; N at residue 601; and, I at residue 629; and wherein the enzyme has at least 20 % identity with SEQ ID N0:2 when aligned with SEQ ID N0:2, as an alpha-galactosidase.