ThisstandardspecifiesamethodforthemeasurementoftheacidificationactivityoflacticacidbacteriabycontinuousmeasurementofpH.
Themethodisapplicabletodairystartercultureswherethesecharacteristicmicroorganismsarepresent.
Twotypesofstandardizedmilkarespecifiedintheprocedure:boiledmilkwith9,5%massfractiondrymatter(B-milk9,5);andautoclavedmilkwith9,5%massfractiondrymatter(A-milk9,5).ItispossiblethatheattreatmentofB-milk9,5doesnotinactivateallenzymesthatarepresent,whichcanaffecttheactivityofsomecultures.Inthatcase,culturesaretestedwithA-milk9,5inwhichallenzymeshavebeeninactivated.
ThisstandardisonlyavailableinEnglish.
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