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The D10a fraction obtained from the decoction of Uncaria tomentosa was chemically analyzed. An additional aqueous extract (1AERT) from commercial capsules containing powdered cat's claw stem bark was used for comparison purposes. D10a is composed mainly of polyphenols (86%), including the caffeoylquinic derivatives and flavonoid content such as chlorogenic acid, caffeic acid and rutin, quantified...
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