RT Journal Article
SR Electronic
A1 Orsák, Matyáš
A1 Hamouz, Karel
A1 Lachman, Jaromír
A1 Kasal, Pavel
T1 Chlorogenic acid content in potato tubers with colored flesh as affected by a genotype, location and long-term storage
JF Plant, Soil and Environment
YR 2019
VO 65
IS 7
SP 355
OP 360
DO 10.17221/195/2019-PSE
UL https://pse.agriculturejournals.cz/artkey/pse-201907-0004.php
AB 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).