id author title date pages extension mime words sentences flesch summary cache txt cord-331868-xbszmiql Clark, K.J An in vitro study of theaflavins extracted from black tea to neutralize bovine rotavirus and bovine coronavirus infections 1998-10-01 .txt text/plain 3180 188 57 title: An in vitro study of theaflavins extracted from black tea to neutralize bovine rotavirus and bovine coronavirus infections Crude theaflavin was extracted from black tea and then fractionated by HPLC into five components (initial peaks (IP), TF(1), TF(2A), TF(2B), and TF(3)). Therefore, although the use of phyllosilicate clays and charcoal are an ideal method of concentrating virus particles, they do not appear to be an effective method of eliminating the infectivity of rotavirus or coronavirus as judged from in vitro studies (Clark et al., 1998) . In our studies, the crude extract of theaflavin and each of the purified derivatives were studied (individually and in combination) for their antiviral effect against rotavirus and coronavirus. Crude theaflavin extractions were later made from Indian and Chinese black tea and compared to the U.S. source for inactivation activity against bovine rotavirus. ./cache/cord-331868-xbszmiql.txt ./txt/cord-331868-xbszmiql.txt