Table 1.
HPLC fingerprint of the analysed V. vinifera bud-extracts.
| Caffeic Acid | Chlorogenic Acid | Coumaric Acid | Ferulic Acid | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sample | ID | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | |||
| COMPANY_1 | C1 | 8.36 | 0.31 | a | n.d. | / | / | n.d. | / | / | 168.62 | 9.81 | a | |||
| COMPANY_2 | C2 | 8.22 | 0.17 | a | n.d. | / | / | n.d. | / | / | 190.01 | 5.51 | b | |||
| MACERATE | M | 7.86 | 0.19 | a | n.d. | / | / | n.d. | / | / | 234.44 | 9.51 | c | |||
| ULTRASOUND | US | 9.91 | 0.25 | b | n.d. | / | / | n.d. | / | / | 227.43 | 5.83 | c | |||
| Hyperoside | Isoquercitrin | Quercetin | Quercitrin | Rutin | ||||||||||||
| Sample | ID | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test |
| COMPANY_1 | C1 | n.d. | / | / | n.d. | / | / | 79.77 | 3.61 | a | 89.99 | 8.90 | a | 26.74 | 1.16 | a |
| COMPANY_2 | C2 | n.d. | / | / | n.d. | / | / | 91.23 | 3.74 | a | 105.95 | 5.86 | ab | 31.45 | 2.79 | a |
| MACERATE | M | n.d. | / | / | n.d. | / | / | 111.44 | 5.58 | b | 127.28 | 9.18 | b | 45.71 | 3.03 | b |
| ULTRASOUND | US | n.d. | / | / | n.d. | / | / | 106.86 | 8.71 | b | 356.10 | 9.85 | c | 95.86 | 4.12 | c |
| Ellagic Acid | Gallic acid | Catechin | Epicatechin | |||||||||||||
| Sample | ID | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | Mean Value | SD | Tukey Test | |||
| COMPANY_1 | C1 | 203.24 | 0.99 | a | 21.92 | 0.74 | a | 149.34 | 1.95 | ab | 42.37 | 2.59 | a | |||
| COMPANY_2 | C2 | 208.09 | 3.59 | a | 29.16 | 11.30 | a | 157.25 | 2.02 | b | 44.99 | 1.38 | ab | |||
| MACERATE | M | 222.35 | 1.03 | b | 29.42 | 0.69 | a | 145.13 | 5.15 | a | 67.67 | 2.85 | c | |||
| ULTRASOUND | US | 223.77 | 1.35 | b | 23.59 | 0.53 | a | 145.37 | 3.90 | a | 50.11 | 1.81 | b | |||
Different letters for each extract highlight the significant differences at p < 0.05. Results were reported as mg/100 g of fresh weight (FW). Commercial bud-preparations, C1 and C2; traditional macerate, M; ultrasound extract, US.