Assertion: propionic acid | /r/HasProperty | needed
Facets:
Source sentences:
text: The finding that preservation occurs when the metabolites provided less than 0.1% is more than twice as useful, and it is even more than ten times as useful when only 0.02% propionic acid is needed, especially when the mixture has been concentrated.
text: In fact, they teach that 2% propionic acid would be needed.
text: teach that 2%-3% propionic acid is needed to inhibit yeast.