Assertion: sodium nitrate | /r/ObjectUse | used as perservative
Facets:
value: in cured meats
type: LOCATION
value: in poultry
type: LOCATION
value: sometimes
type: TEMPORAL
Source sentences:
text: Sodium nitrate is sometimes used as a perservative in cured meats such as bacon.
text: Sodium nitrate is also a food additive used as a preservative and color fixative in cured meats and poultry; it is listed under its INS number 251 or E number E251.