PEPTONE FOR CULTURE MEDIUM FOR CULTURING MICROORGANISM

摘要

PURPOSE:To obtain a peptone, comprising an enzymic hydrolyzate of a protein derived from royal jelly and useful for promoting the growth of bifidus bacteria and lactic acid bacteria without adversely affecting the flavor of the resultant product. CONSTITUTION:This peptone for a culture medium for culturing a microorganism is obtained by carrying out the ultrafiltering or micro-filtering treatment of a raw royal jelly, heating the resultant composition containing a protein at about 10-70 deg.C, regulating the pH to <=3 or >=7 and carrying out the enzymic reaction. The obtained hydrolyzate is used as the peptone and added in an amount of >=0.01% to a culture medium for culturing the microorganism.