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US 2006/0189501 A1Published application
Detergent compositions
OwnerNeil Lant, Steven Pattersoninventors
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Abstract
Detergent compositions containing high efficiency lipase enzymes and specific detergent formulations comprising less than 10 wt % zeolite and phosphate builder are described. Preferred formulations comprise surfactants selected from alkyl benzene sulphonates in combination with alky ethoxylated sulfates or MES or non-ionic surfactants.
Claims14
A detergent composition comprising from 0 to 10 wt % aluminosilicate (anhydrous basis) and/or phosphate builder, said composition having a reserve alkalinity of greater than 4, and said composition comprising a lipase which is a polypeptide having an amino acid sequence which:
- (a) has at least 90% identity with the wild-type lipase derived from Humicola lanuginosa strain DSM 4109;
- (b) compared to said wild-type lipase, comprises a substitution of an electrically neutral or negatively charged amino acid at the surface of the three-dimensional structure within 15 Å of E1 or Q249 with a positively charged amino acid;
- and (c) comprises a peptide addition at the C-terminal;
- and/or (d) comprises a peptide addition at the N-terminal;
- and/or (e) meets the following limitations:
- i) comprises a negative amino acid in position E210 of said wild-type lipase;
- ii) comprises a negatively charged amino acid in the region corresponding to positions 90-101 of said wild-type lipase;
- and iii) comprises a neutral or negative amino acid at a position corresponding to N94 of said wild-type lipase and/or has a negative or neutral net electric charge in the region corresponding to positions 90-101 of said wild-type lipase.
5 more elements
Dependencies are inferred from the claim text.