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. 2021 Mar 2;26(5):1322. doi: 10.3390/molecules26051322

Table 2.

Free amino acids, metabolites (mg/g DM), and dry-matter (g/100 g FM) content in potatoes of different flesh colour cultivars as influenced by cultivar (average results of storage time and temperature).

Potato Cultivar
H26 RE BC BA V F
Amino acid Asn 9.79 ± 1.79 a 7.98 ± 1.29 c 8.74 ± 1.30 b 5.49 ± 1.27 d 7.70 ± 1.88 c 9.31 ± 1.10 a
Asp 2.21 ± 0.54 a 1.97 ± 0.52 b 1.39 ± 0.26 d 1.92 ± 0.49 b 1.39 ± 0.36 d 1.66 ± 0.18 c
Gln 4.62 ± 1.04 c 6.78 ± 1.36 a 5.00 ± 0.96 b 2.14 ± 0.62 e 2.40 ± 0.76 e 3.18 ± 0.96 d
Glu 1.65 ± 0.34 c 2.04 ± 0.40 b 2.36 ± 0.26 a 2.10 ± 0.33 b 1.66 ± 0.54 c 1.62 ± 0.20 c
Arg 1.17 ± 0.22 c 1.87 ± 0.32 b 1.98 ± 0.18 a 0.49 ± 0.11 f 0.710.14 e 0.95 ± 0.16 d
Val 0.91 ± 0.21 b 0.96 ± 0.14 b 1.28 ± 0.16 a 0.66 ± 0.08 c 0.67 ± 0.20 c 1.21 ± 0.20 a
GABA 0.89 ± 0.23 e 1.26 ± 0.43 c 1.46 ± 0.35 b 1.01 ± 0.40 d 0.57 ± 0.10 f 1.66 ± 0.40 a
Pro 0.68 ± 0.43 c 0.64 ± 0.28 d 0.88 ± 0.27 b 0.89 ± 0.86 b 0.53 ± 0.10 e 0.98 ± 0.35 b
Ala 0.22 ± 0.13 d 0.41 ± 0.34 b 0.45 ± 0.24 a 0.35 ± 0.14 c 0.23 ± 0.21 d 0.42 ± 0.17 a
Tyr 0.43 ± 0.10 d 0.42 ± 0.13 d 0.77 ± 0.06 a 0.52 ± 0.08 b 0.47 ± 0.10 c 0.55 ± 0.14 b
AAA 0.52 ± 0.69 b 0.20 ± 0.30 c 0.39 ± 0.43 b,c 0.22 ± 0.15 c 0.58 ± 0.58 b 0.86 ± 0.75 a
Lys 0.62 ± 0.13 c 0.61 ± 0.14 c 0.72 ± 0.11 a 0.31 ± 0.08 e 0.53 ± 0.10 d 0.68 ± 0.16 b
Ile 0.51 ± 0.11 b 0.52 ± 0.10 b 0.63 ± 0.08 a 0.47 ± 0.06 c 0.31 ± 0.07 d 0.50 ± 0.08 b,c
Leu 0.24 ± 0.08 c 0.37 ± 0.10 a 0.29 ± 0.02 b 0.25 ± 0.07 c 0.15 ± 0.04 d 0.26 ± 0.08 c
EA 0.26 ± 0.07 a 0.25 ± 0.06 a 0.34 ± 0.03 a 0.30 ± 0,08 a 0.27 ± 0.05 a 0.29 ± 0.10 a
Ser 0.71 ± 0.30 b 0.56 ± 0.21 c 0.38 ± 0.05 d 0.39 ± 0.14 d 0.23 ± 0.04 e 0.80 ± 0.30 a
Thr 0.39 ± 0.09 c 0.47 ± 0.10 b 0.25 ± 0.03 e 0.10 ± 0.02 f 0.36 ± 0.07 d 0.56 ± 0.14 a
His 0.35 ± 0.09 b 0.35 ± 0,06 b 0.44 ± 0.05 a 0.26 ± 0.04 c 0.28 ± 0.04 c 0.32 ± 0.09 b
Met 0.30 ± 0.06 b 0.24 ± 0.09 c 0.23 ± 0.04 c 0.15 ± 0.04 d 0.25 ± 0.02 c 0.40 ± 0.06 a
Phe 0.18 ± 0.06 d 0.21 ± 0.07 d 0.29 ± 0.08 c 0.26 ± 0.05 c 0.35 ± 0.08 b 0.39 ± 0.08 b
Gly 0.05 ± 0.02 d 0.07 ± 0.02 b 0.06 ± 0.01 c 0.03 ± 0.02 f 0.04 ± 0.01 e 0.09 ± 0.01 a
Cys 0.07 ± 0.03 b 0.08 ± 0.04 a,b 0.08 ± 0.03 a,b 0.09 ± 0.04 a 0.06 ± 0.03 c 0.09 ± 0.01 a
L-orn 0.05 ± 0.02 b 0.10 ± 0.02 a 0.09 ± 0.03 a 0.09 ± 0.04 a 0.03 ± 0.01 b 0.04 ± 0.02 b
Total free aa (TAA) 26.85 ± 5.44 b 28.36 ± 3.69 a 28.55 ± 2.50 a 18.53 ± 3.31 c 19.81 ± 3.50 c 26.84 ± 4.11 b
Dry matter 23.03 ± 1.03 a 22.58 ± 2.43 a,b 23.30 ± 1.37 a 22.70 ± 1.67 a,b 21.15 ± 1.09 c 20.24 ± 2.85 d

Each data value is presented as the mean ± standard deviation (n = 6); a–f the same letters within the same row are not significantly different; and H26—Herbie 26, RE—Rote Emma, BC—Blue Congo, BA—Blaue Annelise, V—Vineta, and F—Fresco.