Assertion: alkaloid | /r/HasProperty | extracted
Facets:
value: from one plant
type: OTHER
value: from dried straw
type: OTHER
value: from the aqueous layer
type: LOCATION
value: the amount used
type: OTHER
value: by treating the benzene solution
type: MANNER
Source sentences:
text: The alkaloids may be extracted by treating the benzene solution with 0.02N sulphuric acid, the amount used being calculated by titration.
text: The alkaloids were extracted from dried straw (capsules).
text: Alkaloids were extracted in dichloromethane (4 × 400 ml) from the aqueous layer.
text: Where several alkaloids are extracted from one plant their names are often distinguished by variations in the suffix: "idine", "anine", "aline", "inine" etc.