Assertion: buttermilk's acid | /r/CreatedBy | the bacteria
Facets:
Source sentences:
text: As lactic acid is produced by the bacteria , the pH of the milk decreases and casein, the primary protein in milk, precipitates causing the curdling orclabbering of milk.
text: As lactic acid is produced by the bacteria, the pH of the milk decreases and casein, the primary protein in milk, precipitates causing the curdling or clabbering of milk.