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Lignins are major cell wall components formed by the dehydrogenative polymerization of three monolignols, p-coumaryl, coniferyl and sinapyl alcohols. We prepared lignin–carbohydrate complexes (Fr. VI and Fr. VII) from pine cones by acid and ethanol precipitation, and investigated which part of these molecules is essential for expression of biological activities. They showed potent antiviral activity...
Purification of polar fractions from cacao liquor extracts gave 17 phenolics including four new compounds. The new compounds were characterized as a C-glycosidic flavan, an O-glycoside of a dimeric and two O-glycosides of trimeric A-linked proanthocyanidins, on the basis of spectroscopic data. Isolated polyphenols showed inhibitory effects on nicotinamide adenine dinucleotide phosphate-dependent lipid...
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