Figure 1. Sephadex LH-20 column chromatograms of polyphenols prepared from immature Hosui and Kosui pear fruits. The polyphenol fractions obtained by Diaion HP-20 column chromatography were applied to Sephadex LH-20 column chromatography and eluted with ethanol, fraction number 1-20 (Fra.I); methanol, fraction number 21–40, (Fra.II); and 60% acetone, fraction number 41–60, (Fra.III). (A) Immature Hosui pear fruits. (B) Immature Kosui pear fruits

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Suppressive Effect of Polyphenols from Immature Pear Fruits on Blood Glucose Levels

Zhaohong Ci, Chengyu Jiang, Yang Cui, Michiyuki Kojima

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