Non-extractable procyanidins and lignin are important factors in the bile acid binding and radical scavenging properties of cell wall material in some fruits.
The cell wall components and the food functions of alcohol-insoluble solids (AIS) of Chinese quince, quince, hawthorn, apple, pear and blueberry fruits were analyzed. Chinese quince contained characteristically high contents of cellulose, lignin, and non-extractable procyanidins (NEPCs). On the other hand, the quince AIS contained the highest proportion of NEPCs, the highest mean degree of polymerization (mDP), the strongest radical scavenging activity, and strong bile acid binding activity. In fruit AIS, the lignin and NEPC contents both showed positive correlations with the bile acid binding and radical scavenging activities. The value for mDP × NEPC content was a good index for the radical scavenging activity. The results suggest that highly polymerized NEPCs and lignin are important factors of cell wall components of fruits to having a high functionality, and Chinese quince and quince are interesting fruits from this view point.
Department of Sciences of Functional Foods, Graduate School of Agriculture, Shinshu University, Kamiina-gun, Nagano, Japan. hamauzu@shinshu-u.ac.jp
Yasunori
Y
Hamauzu
Yukari
Y
Mizuno
D001647:Bile Acids and Salts / Q000378:metabolism*; D029798:Blueberry Plants / Q000737:chemistry; D002473:Cell Wall / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D027825:Crataegus / Q000737:chemistry; D016166:Free Radical Scavengers / Q000032:analysis / Q000494:pharmacology; D005638:Fruit / Q000737:chemistry*; D008031:Lignin / Q000737:chemistry / Q000494:pharmacology*; D027845:Malus / Q000737:chemistry; D010636:Phenols / Q000032:analysis / Q000494:pharmacology; D044945:Proanthocyanidins / Q000737:chemistry / Q000494:pharmacology*; D031989:Pyrus / Q000737:chemistry
D001647:Bile Acids and Salts; D016166:Free Radical Scavengers; D010636:Phenols; D044945:Proanthocyanidins; D008031:Lignin
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