Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1994-11-22
1998-11-03
Wax, Robert A.
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510392, 435202, 435203, 435204, 435 691, 4352523, 4353201, 536 231, 536 237, C12N 928
Patent
active
058308377
ABSTRACT:
A variant of a parent .alpha.-amylase enzyme having an improved washing and/or dishwashing performance as compared to the parent enzyme, wherein one or more amino acid residues of the parent enzyme have been replaced by a different amino acid residue and/or wherein one or more amino acid residues of the parent .alpha.-amylase have been deleted and/or wherein one or more amino acid residues have been added to the parent .alpha.-amylase enzyme, provided that the variant is different from one in which the methionine residue in position 197 of a parent B. licheniformis .alpha.-amylase has been replaced by alanine or threonine, as the only modification being made. The variant may be used for washing and dishwashing.
REFERENCES:
patent: 5093257 (1992-03-01), Gray
patent: 5093325 (1992-03-01), Gray
Suzuki et al., J. of Biol. Chem., vol. 264, No. 32, pp. 18933-18938 (1989).
Suzuki et al. J. Biol. Chem. (1989), 264(32):18933-18938, Nov. 15, 1989.
Bisg.ang.rd-Frantzen Henrik
Borchert Torben Vedel
Svendsen Allan
Thellersen Marianne
Van der Zee Pia
Agris, Esq. Cheryl H.
Novo Nordisk A S
Saidha Tekchand
Wax Robert A.
Zelson Esq. Steve T.
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