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Cleaning agent containing amylases

a technology of amylases and cleaning agents, applied in the field of cleaning agents, can solve the problems of increasing water and energy consumption, dissatisfaction of consumers, and many of the usual automatic dishwashing agents exhibit inadequate cleaning performance on stubborn soiling

Inactive Publication Date: 2017-08-31
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a cleaning agent for hard surfaces that includes two types of amylase enzymes. These enzymes help to break down starch and other carbohydrates found on dishes and surfaces. The cleaning agent can be used in an automatic dishwasher to help improve the efficiency of the dishwashing process. The technical effect of this patent is to provide a more effective and efficient cleaning agent for dishes and surfaces.

Problems solved by technology

While the cleaning performance of dishwashing agents used today is generally high, the problem that arises, among other things due to the general trend in automatic dishwashing to increasingly use low-temperature programs, is that many of the usual automatic dishwashing agents exhibit inadequate cleaning performance on stubborn soiling.
Such inadequate cleaning performance and the attendant inadequate cleaning of the dishes result in dissatisfaction on the part of the consumer and in the consumer pretreating such soiling, which in turn increases the consumption of water and energy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

Improving the Amylase Performance During Automatic Dishwashing

[0187]

TABLE 1Composition of the automatic dishwashing agentBaseTripolyphosphate (wt / %)35.9Sodium carbonate (wt / %)12.2Phosphonate (wt / %)2.4Sulfonic acid group-containing polymer (wt / %)7.9Polyacrylate (wt / %)4.6Non-ionic surfactants (wt / %)6.1Percarbonate (wt / %)14.6TAED (wt / %)2.3Bleach catalyst (wt / %)1.0Polycarboxylate (wt / %)1.5Sodium silicate / polycarboxylate (wt / %)3.9Zinc acetate (wt / %)0.2Remainder (perfum, dyes, protease or to make protease mixture etc.) (wt / %)up 100

[0188]Spaghetti Soiling Cleaning Performance

[0189]In a Bosch automatic dishwasher, china plates containing soiling of spaghetti were washed at 40° C. (“Normal” program) and 21° dH water hardness using a solid dishwashing tablet (20 g; for composition, see Table 1) comprising two individual amylases (comparative experiments V1, V2) or amylase combinations (M1).

[0190]The cleaning performance was visually determined according to IKW (German Cosmetic, Toiletry, Perf...

example 2

Cleaning Performance in Phosphate-Free Dishwashing Agents

[0196]China plates containing soiling of tea (Assam, BOP, Lipton), ground meat, egg yolk, spaghetti, starch and crème brulee were washed in a Miele GSL automatic dishwasher at 50° C. (“Normal” program) and 21° dH, and in a Bosch SMS68M62 automatic dishwasher at 40° C. (“Gentle 40” program) and 21° dH, using a solid dishwashing tablet. Various enzymes were added to the formulation according to Table 3 in the indicated amounts (mg active protein / job) (V1 to V6: comparative experiments; E1 to E3: according to the disclosure):

mg mg mg mg protease 1protease 2amylase 1amylase 2V1502505V280005V308005V4800500V5080500V65025500E1800252.5E25025252.5E3080252.5Protease 1: enzyme according to SEQ ID NO. 6Protease 2: enzyme according to SEQ ID NO. 7Amylase 1: enzyme according to SEQ ID NO. 1 comprising the amino acid substitutions M202L, S255N and R172QAmylase 2: Stainzyme Plus ™

TABLE 3Composition of the automatic dishwashing agent in wt. % ...

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Abstract

A cleaning agent for hard surfaces and methods for cleaning are provided herein. In one embodiment, the cleaning agent includes at least one first amylase, wherein the first amylase is an α-amylase from Bacillus sp. No. 707 or a functional fragment or a variant thereof. The cleaning agent further includes at least one second amylase, wherein the second amylase is an AA560 α-amylase from Bacillus sp. or a functional fragment or a variant thereof. In another embodiment, the method includes dispensing the cleaning agent into the interior of an automatic dishwasher while a dishwashing program is being executed, before the main washing cycle begins, or in the course of the main washing cycle.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a U.S. National-Stage entry under 35 U.S.C. §371 based on International Application No. PCT / EP2015 / 063668, filed Jun. 18, 2015, which was published under PCT Article 21(2) and which claims priority to German Application No. 10 2014 212 642.8, filed Jun. 30, 2014, which are all hereby incorporated in their entirety by reference.TECHNICAL FIELD[0002]The present application is directed to a cleaning agent, preferably a dishwashing agent, especially an automatic dishwashing agent, which comprises at least two amylases, and to the use of such a cleaning agent.BACKGROUND[0003]The most important criterion when cleaning textiles, hard surfaces, such as in particular when washing dishes, in particular during automatic dish washing, is the cleaning performance when it comes to a wide variety of soiling, which is introduced in particular in the form of food residue. While the cleaning performance of dishwashing agents used today i...

Claims

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Application Information

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IPC IPC(8): C11D3/386C11D11/00
CPCC11D3/38609C11D11/0023C12Y304/00C12Y302/01001C11D3/38681C11D3/386C11D2111/14A47L15/44C11D3/0073C11D3/395C11D3/48C12N9/2417
Inventor EITING, THOMASMUSSMANN, NINABASTIGKEIT, THORSTENVOCKENROTH, INGA KERSTINWRUBBEL, NOELLEWEBER, THOMASMENKE, SILKE
Owner HENKEL KGAA