Assertion: leucine | /r/HasProperty | sourced
Facets:
value: from duck feathers
type: OTHER
value: from human hair
type: OTHER
value: previously
type: TEMPORAL
value: from china
type: OTHER
value: frequently
type: TEMPORAL
Source sentences:
text: One major manufacturer told us that leucine, isoleucine, and valine previously had been sourced mostly from human hair or duck feathers although he has noticed a change in the last year toward vegetable-based sources, at least in the case of leucine.
text: LEUCINE is frequently sourced from China but is typically not very good quality.
text: One major manufacturer told us that leucine, isoleucine, and valine previously had been sourced mostly from human hair or duck feathers although he has noticed a change in the last year toward vegetable-based sources, at least in the case of leucine.