Assertion: lipid | /r/HasProperty | extracted by procedure
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Lipids are usually extracted from tissue matrices with chloroform-methanol (2:1 by volume) by a procedure described originally by Folch et al. , in which the crude extract is washed with one-fourth its volume of saline solution; the common range of lipids remain in the lower chloroform layer, while non-lipid impurities are washed out with the upper aqueous layer.