Abschlussbericht Projekt: „Verminderung der ... - BLE

DP (AU 475nm
), FRAP (mmol kg -1 )
2.5
2.0
1.5
1.0
0.5
BSI
DP
FRAP
2005
(I) harvest
120
2.5
100
2.0
80
1.5
60
1.0
40
0.5
20
BSI
DP
FRAP
2006
(IV) harvest
120
100
80
60
40
20
BSI (%)
0.0
0
0.0
0
DP (AU 475nm
), FRAP (mmol kg -1 FM)
2.5
2.0
1.5
1.0
0.5
BSI
DP
FRAP
(II) five months stored
120
2.5
100
2.0
80
1.5
60
1.0
40
0.5
20
BSI
DP
FRAP
(V) five months stored
120
100
80
60
40
20
BSI (%)
0.0
0
0.0
0
DP (AU 475nm
), FRAP (mmol kg -1 FM)
2.5
2.0
1.5
1.0
0.5
BSI
DP
FRAP
(III) eight months stored
120
2.5
100
2.0
80
1.5
60
1.0
40
0.5
20
BSI
DP
FRAP
(VI) eight months stored
120
100
80
60
40
20
BSI (%)
0.0
1.095
Specific gravity (kg L -1 )
0
0.0
1.095
Specific gravity (kg L -1 )
0
Figure 1 Blackspot index (BSI; %) of potato tubers differing in their specific gravity (kg L -
1 ) in comparison to their discolouration potential (DP, AU 475nm ) and antioxidant activity
(FRAP, mmol kg -1 FM) after harvest (I) in 2005, following five (II) and eight (III) months
of storage, respectively and after harvest (IV) in 2006, following five (V) and eight (VI)
months of storage, respectively, irrespective of cultivar, statistical evalutions are shown in
Table 1
224