作者: Peter E. Laks
DOI: 10.1007/978-1-4684-7511-1_32
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摘要: The condensed tannins are natural preservatives of lignocellulosic materials. They commonly found in high concentrations many external protective plant tissues like seedcoats and bark as well the heartwood some tree species. Condensed have traditionally been used areas world for fishing nets, twines, fabrics. More modern applications that investigated food wood preservatives, with especially good results achieved latter. Treatment a procyanidin/copper(II) chelate yielded blocks greater resistance to decay by Coriolus versicolor than pentachlorophenol when evaluated standard ASTM soil-block test. can also be reacted directly give it dimensional stability similar naturally durable wood. It is possible synthesize flavonoids antimicrobial activity thiolysis procyanidins ketalization catechin. structure-activity relations these semisynthetic provided information on mode action flavonoid phytoalexins.