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Tableau 4.

Influence du traitement de la vendange sur les principales caractéristiques polyphénoliques et colorimétriques des vins fin FML Comparaison des champs électriques pulsés, de la thermovinification et du témoin.

Cépage vinification modalité IPT Anthocyanes [mg/l] Abs 420 nm Abs 520 nm Abs 620  nm IC' Nuance
Syrah Phase liquide Blanc-CEP CEP Thermo 38.42 43.07 61.74 506 603 719 2.55 3.28 4.61 4.67 6.02 9.41 0.94 1.26 2.08 8.16 10.56 16.11 0.78 0.73 0.58
Fer- Servadou Phase liquide Blanc-CEP CEP Thermo 31.35 36.90 54.27 490 637 741 2.14 2.54 4.12 4.62 5.59 8.87 0.69 0.91 1.60 7.45 9.03 14.59 0.67 0.65 0.64
Malbec Phase liquide Blanc-CEP CEP Thermo 28.41 30.46 53.04 250 264 568 2.52 4.66 3.04 3.39 8.22 4.06 1.09 2.10 1.41 7.00 14.98 8.51 0.90 0.91 0.73
Témoin 3 Jours 42.78 554 2.97 6.43 1.10 10.50 0.60
Vinification CEP 3 Jours 49.03 619 3.46 7.47 1.35 12.28 0.58
traditionnelle Témoin 14 Jours 45.66 445 3.63 6.01 1.53 11.17 0.79
CEP 14 Jours 48.85 508 3.82 6.87 1.52 12.20 0.74
Blanc-CEP 32.57 395 2.47 4.26 0.77 7.50 0.76
Phase liquide CEP 37.37 494 3.04 5.54 1.01 9.59 0.71
Cabernet Thermo 53.21 662 4.33 8.02 1.64 13.99 0.69
Sauvignon Vinification traditionnelle CEP 3 Jours Témoin 14 Jours CEP 14 Jours 45.63 47.39 59.48 652 437 609 3.77 3.98 5.20 8.26 6.16 9.19 1.23 1.32 1.83 13.26 11.46 16.21 0.58 0.81 0.63

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