Assertion: sepia melanin | /r/ObjectUse | used in many researches
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: Sepia melanin isolated from the ink sacs of Sepia officinalis, is commonly used as standard in many researches on melanin characteristics such as spectroscopy, photoreactivity, and morphology of this class of black pigments; because of its high purity as more than 98 % of melanosomes concentration in tissues is Eumelanin.