Assertion: l tryptophan | /r/MadeOf | cell
Facets:
value: inevitably
type: DEGREE
value: more specifically
type: DEGREE
Source sentences:
text: More specifically, L-tryptophan formed by the enzymatic process inevitably contains impurities such as cells, materials used for culturing and various proteins and L-tryptophan having a high purity can hardly be obtained, and since it is relatively difficult to separate the enzyme from formed L-tryptophan, it is difficult to use the enzyme repeatedly.