银杏以热风,室温及冻方式风乾后,比较其萃取物抗(9)

银杏以热风,室温及冻方式风乾后,比较其萃取物抗氧化活性之研究

1

leaf by different drying methodsquercetin isorhamnetin kaempferol

來

(µg/mg) (µg/mg) (µg/mg)

葉 axaxax 0.69±0.12 4.62±0.14 2.69±0.891

bxbxbx 1.16±0.10 6.06±0.22 5.16±0.5912

葉 1 12 葉 1 12 冷 葉 1 12

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9.44±3.23y 9.99±2.86 y

4.47±1.78x 5.50±1.20x

5.34±1.88x 6.29±0.46x

2.46±0.51z 2.48±0.62 y

1.37±0.12y 1.23±0.15x

1.33±0.29y 1.33±0.08x

13.60±3.11z 14.09±5.51 y

8.31±1.20y 7.20±1.19x

7.85±0.97xy 7.24±0.51x

Values are means ± SD from three groups of Ginkgo biloba ethanol extracts (n=3). Different superscripts xyz indicate significant (p<0.05) difference between different drying methods; ab indicate difference

between different extract times.