It refers to the components that produce gas smell or taste, including thyroid, teeth and sulfur, with the proportion of a greater than or equal to 20 but less than or equal to 80, b greater than or equal to 20 but less than or equal to 80, C greater than or equal to 0 but less than or equal to 40, and a + B + C = 100 by weight, B shows the weight of teeth, C shows the weight of sulfur. It also refers to a kind of food containing this ingredient, which can spread the fragrance or taste with the weight of no less than 1ppb and no more than 1% weight. Food is selected from a group of processed livestock products.Lamb extract, processed chicken products and chicken extractREFERIDO A UNA COMPOSICION PARA IMPARTIR AROMA O SABOR, QUE COMPRENDE METIONAL, DIENALES Y TIAZOLES EN PROPORCIONES QUE SATISFACEN QUE A SEA MAYOR O IGUAL A 20 PERO MENOR O IGUAL A 80, B SEA MAYOR O IGUAL A 20 PERO MENOR O IGUAL A 80 Y C SEA MAYOR O IGUAL A 0 PERO MENOR O IGUAL A 40 Y A+B+C=100, EN DONDE A MUESTRA PARTES EN PESO DE METIONAL, B MUESTRA PARTES EN PESO DE DIENALES Y C MUESTRA PARTES EN PESO DE TIAZOLES. TAMBIEN SE REFIERE A UN ALIMENTO QUE CONTIENE DICHA COMPOSICION PARA IMPARTIR AROMA O SABOR EN NO MENOR QUE 1 PPB Y NO MAS QUE 1% EN PESO EN EL MOMENTO DE COMER. EL ALIMENTO SE SELECCIONA DEL GRUPO QUE CONSISTE DE ARTICULOS PROCESADOS DE CARNE DE GANADO, EXTRACTO DE CARNE DE GANADO, ARTICULOS PROCESADOS DE POLLO Y EXTRACTO DE POLLO