Fecha de publicación: 23/11/2022 Fuente: WIPO Meat A method for preparing a porcine myoglobin includes: constructing a first plasmid containing genes for heme biosynthesis pathway enzymes; constructing a second plasmid containing a gene for Sus scrofa myoglobin MYG; constructing a first Escherichia coli production host containing the first plasmid and the second plasmid; and producing the porcine myoglobin by culturing the first Escherichia coli production host. A composition useful as a meat flavor and/or an iron supplement includes the porcine myoglobin prepared in accordance with the method.