RESEARCH ON SEPARATION AND STERILIZATION CONDITIONOF PUTRID MICROORGANISMS IN TRANSMNTATIVE SOY MILK(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Title:: RESEARCH ON SEPARATION AND STERILIZATION CONDITIONOF PUTRID MICROORGANISMS IN TRANSMNTATIVE SOY MILK

Author(s):: Wang Liping 　 Chen Yourong 　 Qi Fenlan; (College of Food Science and Technology , Shanghai Fisheries University , Shanghai 200090)

Keywords:: Soy milk ; Putrid microorganism ; Orthogonal experiment ; Sterilization condition

Abstract:: In this paper , putrid microorganisms were separated from five transmutative commercial soymilk samples. The result indicated that putrid microorganism were mainly consisted of three bacteria , noyeast and mould were detected. With re-sterilized soy milk as medium , by means of L 9 (32 )orthogonal ex-periment , sterilization condition for the strongest capacity strain of the three separated bacteria was deter-mined:121 ℃ for 30min , 300mg /kg Nisin. With the determinated sterilization method, when soy milkstored for 30 days under 37℃, no bacterium was detected, but the amount of bacterium exceeded 100 cfu/mL on the 45th day.

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Last Update: 2016-12-15