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Figure 1

Clear and cloudy juice technology used on laboratory scale
Clear and cloudy juice technology used on laboratory scale

Figure 2

Juice yield during pressing with or without enzyme mash treatment (averages for 3 investigated seasons; bars depict a standard deviation between seasons)
Juice yield during pressing with or without enzyme mash treatment (averages for 3 investigated seasons; bars depict a standard deviation between seasons)

Figure 3

Effect of enzymation on juice yield of scab resistant cultivars (the point means apple cultivar each season)
Effect of enzymation on juice yield of scab resistant cultivars (the point means apple cultivar each season)

Figure 4

PCA projection of differences and similarities of sensory quality of cloudy juices in 2006 season; sensory characteristic (○), apple cultivar (•). Abbreviations: Taste A (acceptability), Taste B (sour–sweet balance) Code of cultivars: see Table 1
PCA projection of differences and similarities of sensory quality of cloudy juices in 2006 season; sensory characteristic (○), apple cultivar (•). Abbreviations: Taste A (acceptability), Taste B (sour–sweet balance) Code of cultivars: see Table 1

Figure 5

PCA projection of differences and similarities of sensory quality of cloudy juices in 2008 season Abbreviations: see Fig. 4.
PCA projection of differences and similarities of sensory quality of cloudy juices in 2008 season Abbreviations: see Fig. 4.

Sensory results on 10 point scale for cloudy and clear juice (averages for 3 investigated seasons)

Cultivar Cloudy juice Clear juice

Aroma Color Taste* Overall quality Aroma Color Taste* Overall quality
‘Ahrista’ 7.1 ± 0.7 5.7 ± 0.3 7.3 ± 0.3 7.5 ± 0.2 7.5 ± 1.5 7.0 ± 0.5 6.8 ± 0.9 6.6 ± 0.2
‘Angold’ 6.3 ± 0.5 3.5 ± 0.5 6.8 ± 0.5 6.3 ± 0.8 6.5 ± 1.3 6.2 ± 0.5 6.3 ± 0.7 6.4 ± 0.6
‘Antonovka’ 5.9 ± 1.4 4.4 ± 0.8 3.4 ± 1.5 3.3 ± 0.8 6.8 ± 1.4 6.8 ± 1.7 2.6 ± 1.1 2.5 ± 0.1
‘Ariwa’ 6.1 ± 2.0 4.4 ± 1.1 6.7 ± 0.6 6.2 ± 0.6 6.2 ± 1.3 6.2 ± 0.8 6.4 ± 0.4 6.5 ± 0.5
‘Champion’ 6.0 ± 0.4 6.8 ± 0.3 7.0 ± 0.4 6.7 ± 0.3 5.8 ± 0.8 2.8 ± 0.7 6.1 ± 0.4 5.4 ± 0.8
‘Enterprise’ 5.5 ± 0.7 4.8 ± 1.5 6.6 ± 0.5 6.3 ± 0.2 6.5 ± 1.1 6.7 ± 1.0 6.5 ± 0.7 6.5 ± 0.5
‘Florina’ 6.1 ± 0.9 5.0 ± 0.2 6.4 ± 0.7 6.1 ± 1.0 6.9 ± 0.5 7.0 ± 0.2 6.6 ± 0.8 6.7 ± 0.3
‘Free Redstar’ 5.4 ± 0.4 4.7 ± 0.4 4.4 ± 0.9 3.9 ± 0.5 5.9 ± 1.7 7.8 ± 1.0 5.9 ± 0.8 5.8 ± 1.6
‘Freedom’ 6.0 ± 0.6 5.4 ± 1.6 5.6 ± 0.1 5.5 ± 0.6 6.8 ± 0.8 6.5 ± 0.8 5.0 ± 0.4 4.9 ± 0.5
‘Gerlinde’ 7.2 ± 0.3 4.9 ± 0.4 6.9 ± 0.5 6.6 ± 0.4 6.6 ± 1.8 6.0 ± 1.4 5.8 ± 0.8 5.5 ± 1.5
‘Gold Milenium’ 6.7 ± 0.6 3.3 ± 0.4 7.6 ± 0.2 7.0 ± 0.0 6.8 ± 1.1 7.5 ± 0.3 7.3 ± 0.3 7.7 ± 0.0
‘Gold Star’ 6.7 ± 0.8 5.1 ± 0.1 5.5 ± 0.3 5.8 ± 0.6 6.3 ± 1.8 6.9 ± 0.6 6.4 ± 0.1 5.9 ± 0.2
‘Medea’ 6.0 ± 0.8 4.4 ± 1.3 6.6 ± 1.0 6.6 ± 0.3 6.1 ± 1.5 6.9 ± 0.1 6.8 ± 0.1 6.5 ± 0.5
‘Melfree’ 5.5 ± 0.7 4.3 ± 1.1 6.0 ± 0.4 5.8 ± 0.6 6.4 ± 1.5 7.1 ± 0.8 5.5 ± 1.8 5.1 ± 2.1
‘Novamac’ 5.9 ± 0.7 4.2 ± 1.1 4.6 ± 0.7 4.7 ± 1.0 6.4 ± 1.7 4.4 ± 1.4 5.4 ± 1.2 5.5 ± 0.8
‘Rajka’ 6.6 ± 0.5 5.8 ± 1.5 7.0 ± 0.5 7.1 ± 0.7 6.1 ± 1.8 6.3 ± 0.9 6.2 ± 1.1 6.4 ± 1.3
‘Rebella’ 6.3 ± 1.4 4.7 ± 1.4 5.5 ± 1.2 5.2 ± 1.9 5.0 ± 1.2 3.3 ± 0.6 4.9 ± 0.6 4.7 ± 0.4
‘Regine’ 5.3 ± 0.9 5.1 ± 0.6 3.4 ± 0.1 3.3 ± 0.1 6.3 ± 0.3 6.6 ± 0.8 3.1 ± 1.0 3.6 ± 1.2
‘Reglindis’ 6.0 ± 1.0 4.7 ± 1.4 5.1 ± 1.6 5.1 ± 2.0 5.2 ± 2.8 6.9 ± 1.3 4.5 ± 2.1 4.5 ± 1.5
‘Renora’ 6.3 ± 0.7 3.9 ± 0.7 4.7 ± 1.0 4.0 ± 0.6 6.2 ± 1.1 7.0 ± 0.8 5.0 ± 0.5 5.3 ± 0.5
‘Retina’ 6.2 ± 0.5 2.8 ± 0.5 5.7 ± 0.6 5.6 ± 0.9 6.1 ± 1.5 7.0 ± 0.8 6.6 ± 0.6 6.4 ± 1.7
‘Rewena’ 6.7 ± 1.3 5.5 ± 0.9 4.6 ± 1.3 4.7 ± 1.1 6.5 ± 1.1 5.9 ± 0.7 3.7 ± 0.2 3.7 ± 0.4
‘Rosana’ 6.1 ± 1.7 5.2 ± 0.6 5.1 ± 0.8 5.1 ± 0.4 6.5 ± 1.1 6.1 ± 1.4 5.5 ± 1 0 5.8 ± 1.1
‘Rubinola’ 6.8 ± 0.9 7.7 ± 0.5 6.4 ± 1.1 7.4 ± 0.4 6.7 ± 0.4 4.3 ± 0.8 5.6 ± 0.6 5.9 ± 0.7
‘Sawa’ 6.4 ± 1.5 5.1 ± 1.1 5.9 ± 1.7 5.7 ± 1.6 7.0 ± 1.3 6.2 ± 1.7 5.3 ± 1.5 5.3 ± 1.1
‘Selena’ 6.6 ± 0.4 4.4 ± 1.4 5.7 ± 1.7 5.3 ± 1.6 6.5 ± 1.6 6.3 ± 0.4 6.8 ± 0.4 6.5 ± 0.6
‘Topaz’ 6.8 ± 1.1 5.2 ± 1.5 5.9 ± 0.7 5.8 ± 0.9 6.7 ± 0.6 6.2 ± 1.5 5.5 ± 1.0 5.8 ± 0.6

Cultivar differences in soluble solids and acidity of directly pressed apple juice without enzymation (average for 3 seasons)

Cultivar CODE Origin Soluble solids [%] Acidity [g·L−1] Soluble solids/acidity
‘Ahrista’ AHR Germany 11.38 ± 0.83 5.45 ± 1.38 20.9
‘Angold’ ANG Czech Republic 12.85 ± 1.27 5.17 ± 1.97 24.9
‘Antonovka’ ANT Russia 10.03 ± 1.55 10.35 ± 0.89 9.7
‘Ariwa’ ARI Switzerland 12.14 ± 0.41 5.21 ± 0.86 23.3
‘Champion’ CHA Czech Republic 13.41 ± 0.61 3.1 ± 1.11 43.3
‘Enterprise’ ENT USA 13.50 ± 0.33 7.22 ± 1.75 18.7
‘Florina’ FLO France 12.54 ± 1.30 5.13 ± 1.21 24.4
‘Free Redstar’ FRS Poland 12.19 ± 1.28 6.22 ± 2.27 19.6
‘Freedom’ FRM USA 12.41 ± 0.91 7.18 ± 1.63 17.3
‘Gerlinde’ GER Germany 12.75 ± 1.18 7.12 ± 2.61 17.9
‘Gold Milenium’ GOM Poland 13.28 ± 0.19 4.43 ± 1.11 30.0
‘Gold Star’ GS Czech Republic 11.62 ± 0.62 4.78 ± 1.16 24.3
‘Medea’ MDA Poland 12.52 ± 0.68 6.01 ± 2.83 20.8
‘Melfree’ MEL Poland 13.34 ± 0.96 5.76 ± 1.80 23.2
‘Novamac’ NOM Canada 11.79 ± 0.60 7.19 ± 0.34 16.4
‘Rajka’ RAJ Czech Republic 13.00 ± 1.56 5.59 ± 1.48 23.3
‘Rebella’ RBL Germany 12.91 ± 1.50 7.73 ± 2.45 16.7
‘Regine’ RGN Germany 13.90 ± 1.13 8.26 ± 2.02 16.8
‘Reglindis’ REG Germany 12.67 ± 0.78 11.07 ± 2.17 11.4
‘Renora’ RNR Germany 13.24 ± 0.67 9.25 ± 1.30 14.3
‘Retina’ RET Germany 12.45 ± 0.82 4.77 ± 1.76 26.1
‘Rewena’ REW Germany 12.59 ± 0.80 9.22 ± 2.46 13.7
‘Rosana’ ROS Czech Republic 11.54 ± 0.66 7.84 ± 2.74 14.7
‘Rubinola’ RBN Czech Republic 13.36 ± 1.00 6.1 ± 0.70 21.9
‘Sawa’ SAW Poland 13.07 ± 0.47 7.41 ± 1.57 17.6
‘Selena’ SEL Czech Republic 11.28 ± 0.73 3.94 ± 1.42 28.6
‘Topaz’ TOP Czech Republic 13.82 ± 0.62 7.81 ± 2.04 17.7
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