Assertion: catechin | /r/HasProperty | desorbed
Facets:
value: from the adsorbent
type: OTHER
value: by eluting with 55% ethanol
type: MANNER
Source sentences:
text: Alternatively, the extraneous materials may be removed by washing the adsorbent with water containing between 0-10% ethanol, the catechins may then be desorbed from the adsorbent by eluting with 55% ethanol, and small fractions are collected and pooled based on the composition of the fractions, thus isolating a caffeine-free catechin mixture comprising about 60-75% EGCG, wherein the mixture has a purity of about 78-82% in catechins.
text: Alternatively, the extraneous materials may be removed by washing the adsorbent with water containing between 0-10% ethanol, the catechins may then be desorbed from the adsorbent by eluting with 55% ethanol, and small fractions are collected and pooled based on the composition of the fractions, thus isolating a caffeme-free catechin mixture comprising about 60-75% EGCG, wherein the mixture has a purity of about 78-82% in catechins