1. An antimicrobial composition containing: 1-90 wt.% Organic acid C-C based on the total weight, 1-90 wt.% Α, β-unsaturated aliphatic aldehyde based on the total weight, provided that it is at least 5 wt.% of a mixture of organic acid and aldehyde, 0-50 wt.% terpenes based on total weight, 0-20 wt.% surfactants based on total weight and water. 2. A composition according to claim 1, containing, based on a total weight of 50-90 wt.% Organic acid CC, 20-90 wt.% Α, β-unsaturated aliphatic aldehyde, 2-50 wt.% Terpenes, 2-20 wt.% Surface- active substance and water. 3. The composition of claim 1, wherein the organic acid is selected from the group consisting of acetic, propionic, lactic, pelargonic and mixtures thereof. 4. The composition of claim 1, wherein the surfactant is a surfactant based on ethoxylated castor oil with HLB (hydrophilic-lipophilic balance) from 4 to 18.5. A composition according to claim 1, wherein the surfactant is a surfactant based on ethoxylated castor oil with 1-200 ethylene molecules. The composition of claim 1, wherein the terpene is selected from the group consisting of allyldisulfide, citral, pinene, nerol, geraniol, carvacrol, eugenol, carvone, anethol, camphor, menthol, limonene, farnesol, carotene, thymol, borneol, myrcene, terpenene, linalool and mixtures thereof. 7. The composition of claim 1, further comprising propenal, trans-2-butenal, 2-methyl-2-butenal, 2-methyl- (E) -2-butenal, 2-pentenal, trans-2-hexenal, trans-2- hexen-1-ol, 2-methyl-2-pentanal, 2-isopropylpropenal, 2-ethyl-2-butenal, 2-ethyl-2-hexenal, (Z) -3-hexenal, 3,7-dimethyl-6- octenal, 3,7-dimethyl-2,6-octadienal, (2E) -3,7-dimet�1. Противомикробная композиция, содержащая:1-90 вес.% органической кислоты C-Cна основе общего веса,1-90 вес.% α,β-ненасыщенного алифатического альдегида на основе общего веса, при условии, что он составляет по меньшей мере 5 вес.% от смеси органической кислоты и альдегида,0-50 вес.% терпенов на основе общего веса,0-20 вес.% поверхностно-активн