Assertion: insoluble collagen | /r/UsedFor | refer to collagen
Facets:
value: more particularly
type: DEGREE
Source sentences:
text: "Natural insoluble collagen" as used herein means and refers to collagen which cannot be dissolved in an aqueous alkaline or in any inorganic salt solution without chemical modification, and includes hides, splits and other mammalian or reptilian coverings.
text: More particularly, "natural insoluble collagen" refers to collagen derived from the corium, which is the intermediate layer of a bovine hide between the grain and the flesh sides.