ENZYME PREPARATIONS STABLE DURING STORAGE, THEIR PRODUCTION AND USE Russian patent published in 2022 - IPC C11D3/386 C11D3/30 C11D11/00 C11D17/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to an enzyme preparation. A liquid enzyme preparation for preparation of detergent compositions is described, containing from 0.1% to 30 wt.% of component (a), which is salt, according to the general formula (I) (R²)₃N⁺-(CH₂)_nC(R³)(R⁴)-(O-X)_m-O-C(O)-R¹ A^- (I), where n is selected from 1 to 12, m is equal to 0, R¹ is selected from methyl, ethyl, -CH(OH)-CH(OH)-COOH, CH(OH)-CH₃, (E)-CH=CHCOOH, (Z)-CH=CHCOOH, -C₆H₅, para-HO-C₆H₄-, o,p-dihydroxyphenyl, and 3,4,5-trihydroxyphenyl, or O-C(O)-R¹ together form citrate, R² is the same or different and are selected from C₁-C₁₀-alkyl and phenyl, R³ and R⁴ are the same or different and are selected from hydrogen and C₁-C₄-alkyl, X is C₂-C₄-alkylene, and A^- is an inorganic or organic counterion, from 0.1% to 40 wt.% of component (b), which is at least one enzyme selected from a group of lipases (EC 3.1.1) and endopeptidases (EC 3.4.21), and from 0.1% to 60 wt.% of component (c), which is at least one compound selected from enzyme stabilizers other than component (a), preservatives, and surfactants.

EFFECT: provision of an enzyme preparation, which allows for flexible making of compositions with a high or low water content, and an excellent service life in both cases relatively to enzyme (enzymes) contained in it.

22 cl, 5 tbl