TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Microorganisms: The microorganisms are selected from Aspergillus niger, Candida antarctica, Candida rugosa, Penicillium camemberti, Penicillium roqueforti, Pseudomonas cepacia, Pseudomonas fluorescens, porcine pancreas, lipase type II, Rhizopus niveus, Mucor javanicus or Burkholderia strain.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The substrates conversion is performed by preparing catalyst system by mixing one or multiple enzymes isolated or purified from ionic liquid. An epoxidizing agent is added into the modified substrates to obtain mixture. The ionic liquid supported enzymes are added in the obtained mixture. The reaction mixture is heated at 100-800 degrees C to promote settling of the resulting system, where upper layer contains desired product and the lower phase mainly contains catalytic system. The upper layer is separated from the reaction system by using different separation techniques. The modified substrates comprise oils or fats of vegetable or animal origin and esters derived from fatty acids including its derivatives reagents, preferably biodiesel. The oils and fats of vegetable or animal origin comprise mixtures of compounds with different degrees of unsaturation and chain size selected from triacylglycerides, diacylglycerides, monoacylglycerides, free fatty acids or phospholipids. The enzymes used for forming catalytic system comprise lipases. The lipases are selected from different sources, such as selected microorganisms including bacteria, algae and fungi, mammals or animal kingdom or vegetation. The lipase selected from amino A, amino AY, amino G50, amino lipase AK, PS-D amino I, R amino K or novozyme 435. The ionic liquids used as an enzyme support has general formula (A)n+(X)n- (I).n=1 or 2;(A)n+=selected from quaternary ammonium or quaternary phosphonium or pyridinium derivative, preferably 1,3-dialkylimidazolium, tetraalkylammonium, tetraalkyl phosphonium or alkylpyridinium group; and(X)n-=selected from bis(trifluoromethane)sulfonimide, tetrafluoroborate, hexafluorophosphate, trifluoromethanesulfonate or trifluoroacetate group.The modification ionic liquid is selected from 1-n-butyl-3-methylimidazolium hexafluorophosphate, 1-n-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide or 1-n-butyl-3-methylimidazolium tetrafluoroborate. The epoxidizing agent is selected from peroxides, especially hydrogen peroxide, meta-chloroperbenzoic acid or short chain fatty percarboxylic. The phase separation technique of the resulting system is performed by filtration, where the purification and recovery of the catalytic system components is followed by successive washing separately in appropriate solvents. The organic solvents are selected from acetone, ethyl acetate, hexane, ethyl ether or toluene. The obtained epoxides or epoxidized compounds prepare composition of different types of products selected from lubricants, adhesives, plasticizers, stabilizers in polyvinyl chloride, ink diluents for producing polyurethane, polyesters, alkyd resins, carbonates or azide components.