Blackspot bruise susceptibility of potato tubers during growth and storage determined by two different test methods

2002 ◽  
Vol 45 (2-4) ◽  
pp. 187-202 ◽  
Author(s):  
P. E. Lærke ◽  
J. Christiansen ◽  
M. N. Andersen ◽  
B. Veierskov
Keyword(s):  
Test Methods ◽  
Potato Tubers ◽  
Blackspot Bruise ◽  
Bruise Susceptibility ◽  
And Storage

scholarly journals Evaluation of Tendency to Blackspot Bruising and Enzymatic Discoloration of Potato Tubers

2017 ◽  
Vol 75 (1) ◽  
pp. 5-10
Author(s):  
Agnieszka Hara-Skrzypiec
Keyword(s):  
Biochemical Properties ◽  
Quality Traits ◽  
Rotating Drum ◽  
Potato Tubers ◽  
Cultivated Potato ◽  
Mechanical Impact ◽  
Blackspot Bruise ◽  
Enzymatic Discoloration ◽  
Bruise Susceptibility

Abstract Enzymatic discoloration of potato tubers initiated by mechanical impact bruising and the discoloration which appears after tuber cutting are crucial quality traits of the cultivated potato. The presented determination of blackspot bruise susceptibility includes evaluation of the trait with two impact methods - the rotating drum and the falling bolt. These two methods affect both the physical and the biochemical properties of tubers. Evaluation of the discoloration potential after tuber cutting (ED) is also discussed. Evaluating the discoloration potential of tubers is one of the most important points in determining potato quality.

scholarly journals Chlorogenic acid content in potato tubers with colored flesh as affected by a genotype, location and long-term storage

2019 ◽  
Vol 65 (No. 7) ◽  
pp. 355-360
Author(s):  
Matyáš Orsák ◽  
Karel Hamouz ◽  
Jaromír Lachman ◽  
Pavel Kasal
Keyword(s):  
Chlorogenic Acid ◽  
Acid Content ◽  
Field Experiments ◽  
The Other ◽  
Potato Tubers ◽  
Flesh Color ◽  
Long Term Storage ◽  
And Storage ◽  
Term Storage

In three-year field experiments, the effect of genotype, flesh color, site conditions and storage on chlorogenic acid content (CAC) in tubers of potato cultivars with purple or red flesh was compared to yellow-fleshed cv. Agria. The results confirmed the significant effect of genotype on CAC. The highest CAC was characteristic on a three-year mean for the purple-fleshed cv. Vitelotte (769.5 mg/kg fresh weight (FW)), i.e. 1.19−2.6 times higher than in the other cultivars. In regard to the effect of flesh color, significantly higher mean CAC levels have been shown for the red-fleshed (2.8 times) and purple-fleshed (3.16 times) cultivars in comparison with cv. Agria (148 mg/kg FW). At the Uhříněves location with a warmer climate and frequent dry periods as compared to the second Valečov location, a higher CAC (1.18 times) was found. Cold storage (4°C, 6 months) resulted in a significant CAC increase varying from 33.2% in the Blaue St. Galler cultivar to 210.6% in the Vitelotte cultivar among all eight evaluated color-fleshed cultivars. On the other hand, the effect of storage on CAC was not evident in the yellow-fleshed Agria cultivar (inconclusive difference against CAC after harvest).

Effets of soil potash treatment and storage temperature on blackspot bruise development in tubers of fourSolanum tuberosum cultivars

1977 ◽  
Vol 54 (4) ◽  
pp. 137-146 ◽  
Author(s):  
Robert B. Dwelle ◽  
G. F. Stallknecht ◽  
R. E. McDole ◽  
Joseph J. Pavek
Keyword(s):  
Storage Temperature ◽  
Blackspot Bruise ◽  
And Storage

Influence of fertilizer, irrigation, and storage treatments on nitrate-N content of potato tubers

1977 ◽  
Vol 54 (4) ◽  
pp. 125-136 ◽  
Author(s):  
J. Augustin ◽  
R. E. McDole ◽  
G. C. Painter
Keyword(s):  
Potato Tubers ◽  
N Content ◽  
Nitrate N ◽  
And Storage
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