Department of Food Science, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi, Ishikawa 921-8836, Japan.
Nat Prod Res. 2012;26(23):2255-8. doi: 10.1080/14786419.2011.650640. Epub 2012 Jan 18.
In this study, we prepared crude fibre samples from young fruits of 10 persimmon (Diospyros kaki) cultivars and from young fruits of Japanese pear (Pyrus pyrifolia var. culta) and peach (Prunus persica) and compared their bile acid-binding abilities in vitro. All crude fibre samples from young fruits of persimmon were able to bind to cholic acid in a 4 mM cholic acid solution, but crude fibre samples from young fruits of Japanese pear and peach did not show bile acid-binding ability. The bile acid-binding ability was strongly correlated with the water-insoluble condensed tannins content in crude fibre samples (r = 0.909, p < 0.001). These results indicate that the water-insoluble condensed tannins content in young fruits of persimmon is related to its bile acid-binding ability.
在这项研究中，我们从 10 个柿子（Diospyros kaki）品种的幼果以及日本梨（Pyrus pyrifolia var. culta）和桃（Prunus persica）的幼果中制备了粗膳食纤维样品，并比较了它们在体外的胆汁酸结合能力。所有来自柿子幼果的粗膳食纤维样品均能在 4mM 胆酸溶液中与胆酸结合，但来自日本梨和桃的粗膳食纤维样品则没有表现出胆汁酸结合能力。胆汁酸结合能力与粗膳食纤维样品中不溶于水的缩合单宁含量呈强相关（r=0.909，p<0.001）。这些结果表明，柿子幼果中不溶于水的缩合单宁含量与其胆汁酸结合能力有关。
