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Table 2 Quantification of the phenolic chemical composition in different parts of the potato (tuber, flesh, and peel) and micropropagated potato tuber

From: Antioxidant and phenolic contents in potatoes (Solanum tuberosum L.) and micropropagated potatoes

Extract

Phenolic compounds

Total (mg/L)

Chlorogenic acid

Caffeic acid

Vanillic acid

Quercetin glucoside

p-Coumaric acid

Tuber

 Acetone

0.15 ± 0.00a

2.30 ± 0.01a

3.03 ± 0.09a

0.08 ± 0.01a

5.55 ± 0.11

 Methanol

1.47 ± 0.10b

1.40 ± 0.04b

1.26 ± 0.08a

4.13 ± 0.22

 80% Methanol

1.16 ± 0.06c

0.85 ± 0.05c

2.47 ± 0.11

Microtuber

 Acetone

47.81 ± 0.81d

40.33 ± 1.36b

0.85 ± 0.03b

88.99 ± 2.20

 Methanol

1.17 ± 0.06d

17.28 ± 0.27e

27.30 ± 0.46c

0.33 ± 0.01c

46.07 ± 0.80

 80% Methanol

1.20 ± 0.04e

10.81 ± 0.08f

23.30 ± 0.46d

0.16 ± 0.02d

35.47 ± 0.61

Flesh

 Acetone

0.21 ± 0.00g

2.68 ± 0.12a

2.89 ± 0.12

 Methanol

0.87 ± 0.00f

0.87 ± 0.00

 80% Methanol

1.00 ± 0.02g

1.00 ± 0.02

Peel

 Acetone

0.43 ± 0.01h

15.44 ± 0.24h

6.57 ± 0.09e

0.06 ± 0.00a

22.51 ± 0.34

 Methanol

3.25 ± 0.11i

6.53 ± 0.01i

8.87 ± 0.22f

18.66 ± 0.34

 80% Methanol

1.98 ± 0.06j

1.78 ± 0.01j

3.72 ± 0.08g

7.49 ± 0.15

  1. Data are expressed as mean ± standard deviation of triplicate analysis. Values marked with different letters are significantly different for the two-way ANOVA followed by Tukey post hoc test at p < 0.05