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. 2020 Aug 21;9(9):1076. doi: 10.3390/plants9091076

Table 2.

Polyphenolic compounds in solvent fractions of Sorbus commixta fruit ethanol extract.

Polyphenolic Compounds Hexane Fraction Ethyl Acetate Fraction Butanol Fraction Aqueous Fraction
Total phenol content 1 19.89 ± 2.65 a 72.59 ± 5.34 c 87.15 ± 4.66 d 44.07 ± 2.77 b
Total flavonoid content 2 6.25 ± 1.25 a 13.54 ± 0.43 b 22.25 ± 0.77 c 5.96 ± 1.11 a
Chlorogenic acid 3 2.20 ± 0.03 a 93.12 ± 14.54 b 912.72 ± 68.04 c 74.20 ± 2.88 ab
Ferulic acid 3 0.02 ± 0.004 a 1.24 ± 0.05 b 0.11 ± 0.01 a 0.02 ± 0.001 a
Gallic acid 3 ND 0.17 ± 0.02 b 0.04 ± 0.02 a ND
Hydroxybenzoic acid 3 0.36 ± 0.02 b 1.66 ± 0.11 c 0.13 ± 0.01 a 0.04 ± 0.003 a
Protocatechuic acid 3 0.05 ± 0.003 a 2.20 ± 0.22 b 2.86 ± 0.01 c 0.26 ± 0.05 a
Rutin 3 ND 0.12 ± 0.03 a 2.59 ± 0.17 b 0.12 ± 0.02 a
Sinapinic acid 3 ND 0.13 ± 0.01 b 0.07 ± 0.01 a ND

1 Total phenolic content analyzed as gallic acid equivalent (GAE) μg/mg of extract; values are the average of triplicate experiments. 2 Total flavonoid content analyzed as quercetin equivalent (QE) μg/mg of extract; values are the average of triplicate experiments. 3 µg/g of extract values are the average of triplicate experiments. Values with different superscripted letters are significantly different (p < 0.05). ND = Not detectable.