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. 2011 Oct 12;16(10):8590–8600. doi: 10.3390/molecules16108590

Table 1.

Extracting yield and total polyphenols and tannins contents in chestnut burs extract.

Gallic Acid Equivalent (GAE) Water 30% Ethanol 50% Ethanol 75% Ethanol
yield g / 100 g bur 16.28 ± 0.69 A 13.60 ± 0.93 B 11.67 ± 0.76 C 6.62 ± 0.53 D
Total polyphenols g GAE / 100 g Extract 43.75 ± 1.62 A 48.20 ± 1.25 B 60.00 ± 1.49 C 50.00 ± 1.15 B
Total polyphenols g GAE / 100 g bur 7.12 ± 0.89 A 6.56 ± 0.76 A 7.00 ± 1.02 A 3.31 ± 0.62 B
Total tannins g GAE / 100 g extract 27.00 ± 1.9 A 28.40 ±1.09 A 44.00 ± 1.34 B 36.60 ± 1.26 C
Total tannins g GAE / 100 g bur 4.39 ± 0.54 A 3.86 ± 0.39 B 5.13 ± 0.43 C 2.42 ± 0.51 D

A,B,C,D In each line with different letters means significant differences (p < 0.05).