Table 7.
The content of non-flavonoids (µg/g dw a) in apple peels.
| 3-Hba | 4-Hca | CA | 4-Mba | ||
|---|---|---|---|---|---|
| Traditional | ‘Crveni Boskop’ | n.d. | 236.76 ± 18.26 d | 877.22 ± 34.89 g | 69.17 ± 0.94 i |
| ‘Francuska Kožara’ | n.d. | 408.77 ± 11.90 a | 2102.58 ± 57.64 b | 20.05 ± 6.51 n | |
| ‘Ljepocvjetka’ | n.d. | 199.82 ± 11.68 e | 2334.11 ± 33.27 a | 219.67 ± 1.85 d | |
| ‘Šampanjka’ | n.d. | 93.92 ± 6.76 i | 1952.01 ± 71.40 c | 336.19 ± 5.70 b | |
| ‘Apistar’ | 183.06 ± 1.66 c | 241.14 ± 4.82 d | 203.66 ± 4.75 j | 280.08 ± 5.34 c | |
| ‘Božicnica’ | n.d. | 372.73 ± 5.48 b | 1212.62 ± 38.03 e | 218.21 ± 2.38 d | |
| ‘Brčko’ | n.d. | n.d. | 112.79 ± 3.54 l | 145.65 ± 1.89 g | |
| ‘Kanadska Reneta’ | 148.70 ± 3.05 d | 113.10 ± 0.95 h | 903.08 ± 25.67 g | 33.05 ± 1.75 m | |
| ‘Zlatna Zimska Parmenka’ | n.d. | n.d. | 1175.78 ± 10.19 e | 153.34 ± 2.71 f | |
| ‘Kraljevčica’ | 213.46 ± 8.83 b | 282.21 ± 15.41 c | 172.26 ± 11.83 j,k | 182.07 ± 2.21 e | |
| ‘Bobovac’ | 297.01 ± 13.94 a | n.d. | 1646.92 ± 12.47 d | 479.80 ± 2.95 a | |
| ‘Adamčica’ | n.d. | n.d. | 1021.78 ± 47.19 f | 49.11 ± 3.42 l | |
| Commercial | ‘Golden Delicious’ | n.d. | n.d. | 378.55 ± 5.25 h | 66.96 ± 1.99 i,j |
| ‘Idared’ | n.d. | n.d. | 330.06 ± 3.91 i | 31.60 ± 2.29 m | |
| ‘Jonagold’ | n.d. | n.d. | 207.01 ± 3.70 j | 96.16 ± 3.21 h | |
| ‘Fuji’ | n.d. | n.d. | 156.21 ± 30.10 k | 30.55 ± 4.49 m | |
| ‘Granny Smith’ | 114.71 ± 1.72 e | n.d. | n.d. | 57.99 ± 1.63 k | |
| ‘Gala’ | n.d. | 165.14 ± 8.03 g | 308.10 ± 4.52 i | 66.07 ± 0.74 j | |
| ‘Mutsu’ | n.d. | 177.37 ± 6.57 f | 375.92 ± 7.65 h | 22.15 ± 3.10 n | |
| ‘Red Delicious’ | n.d. | 277.63 ± 4.22 c | n.d. | 48.90 ± 3.75 l |
a: Dry weight. Mean ± SD based on two extracts each measured twice (n = 4), * p < 0.05. Different letters in each column indicate significant differences at 95% confidence level as obtained by the LSD test. 3Hba—3-Hydroxybenzaldehyde; 4Hca—4-Hydroxycinnamic acid; CA Chlorogenic acid; 4Mba—4-Methoxybenzaldehyde. n.d.—not detected.