C6-c24 monounsaturated and polyunsaturated acids or their derivatives are used as enzyme inhibitors, especially as P450 inhibitors and mat enzyme inhibitors in pesticide formulations; lt; / P gt;<;p>;EL USO DE Á;CIDOS MONOINSATURADOS Y POLIINSATURADOS C6 A C24 O SUS DERIVADOS COMO INHIBIDORES DE ENZIMAS PARTICULARMENTE COMO INHIBIDORES DE P450 Y ESTERASA EN FORMULACIONES DE PESTICIDAS.<;/p>;