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Items for "condensed tannins"

Condensed tannins from steamed Acacia mearnsii bark

The optimum steaming conditions for extraction of condensed tannins from Acacia mearnsii bark were explored, after which characterization of proanthocyanidins from bark steamed under optimum conditions was carried out...

Keywords: Acacia mearnsii, condensed tannins, proanthocyanidin dimers, steaming of bark, stereochemistry

05/2005 | Holzforschung, Walter de Gruyter
Improvement of formaldehyde-scavenging ability of condensed tannins by ammonia treatment

Condensed tannins have formaldehyde gas-scavenging ability. Tannins consisting of phloroglucinol-type A-rings, such as prodelphinidin and procyanidin, had higher formaldehyde-scavenging ability than those consisting of resorcinol-type A-rings, such as prorobietinidin and profisetinidin...

Keywords: amino substitution, ammonia treatment, condensed tannins, formaldehyde gas-scavenging ability, pyrogallol-type B-ring

03/2006 | Holzforschung, Walter de Gruyter