Table 5.
Metabolite content (in µmol/g DW) in organic extracts of cauliflower and globe artichoke byproducts. Sesquiterpene lactones content is reported in mg/g DW.
| Metabolite | Globe Artichoke | Cauliflower | |||
|---|---|---|---|---|---|
| L | S | L | S | F | |
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | |
| Sterols | |||||
| β-Sitosterol + Campesterol | 7.53 ± 0.68 b | 4.43 ± 0.27 a | 9.07 ± 1.26 a | 7.14 ± 1.91 a | 25.53 ± 2.13 b |
| Stigmasterol | 2.56 ± 0.25 b | 1.26 ± 0.10 a | |||
| Fatty acids | |||||
| Saturated + monounsaturated fatty chains | 65.1 ± 14.8 a | 73.3 ± 11.2 a | 61.5 ± 15.5 a | 52.5 ± 21.8 a | 109.3 ± 1.8 b |
| Linoleic fatty chains | 18.9 ± 1.5 b | 12.9 ± 0.4 a | 22.2 ± 3.6 b | 8.0 ± 1.5 a | 29.3 ± 2.4 c |
| Linolenic fatty chains | 58.0 ± 4.3 b | 8.2 ± 0.5 a | 76.7 ± 10.8 b | 17.2 ± 0.6 a | 104.7 ± 8.1 c |
| Miscellaneous | |||||
| Digalactosyldiacylglycerol | 7.55 ± 0.63 b | 1.52 ± 0.14 a | 5.41 ± 0.72 c | 0.80 ± 0.19 a | 2.36 ± 0.26 b |
| Squalene | 9.07 ± 2.24 b | 1.35 ± 0.27 a | 6.83 ± 0.93 | 1.61 ± 0.15 | |
| Pheophytin a | 4.76 ± 0.97 | 4.68 ± 1.53 | |||
| Pheophytin b | 1.30 ± 0.24 | 0.86 ± 0.14 | |||
| Sesquiterpene lactones | |||||
| Cynaropicrin | 27.5 ± 2.7 b | 2.47 ± 0.21 a | |||
| Dehydrocynaropicrin | 7.22 ± 0.92 | ||||
| Grosheimin | 10.8 ± 1.7 b | 1.00 ± 0.10 a | |||
a,b,c The different superscript letters indicate the significant difference between mean values (p < 0.05) according to ANOVA.