Peer-Reviewed Journal Details
Mandatory Fields
Valcarcel, J;Reilly, K;Gaffney, M;O'Brien, NM
2015
September
Potato Research
Antioxidant Activity, Total Phenolic and Total Flavonoid Content in Sixty Varieties of Potato (Solanum tuberosum L.) Grown in Ireland
Validated
WOS: 11 ()
Optional Fields
POLYPHENOLIC CONTENT FLESH COLOR ANTHOCYANINS CULTIVARS CAPACITY ACIDS RED GENOTYPE EXTRACTS ENHANCEMENT
58
221
244
Potatoes accumulate phenolic compounds, which may have health-promoting effects. In this study, the skin and flesh tissues of 60 varieties of potato planted in two trial sites were evaluated for total phenolics, total flavonoids and antioxidant activity. Higher levels of total phenolics, total flavonoids and antioxidant activity were found in the skin than in the flesh of tubers. Blue variety 'Congo' showed the highest values in both tissues, except antioxidant activity in the skin which was higher in variety 'Edzell Blue'. Maximum values in skin and flesh, respectively, were 12.6 and 3.6 mg/g gallic acid equivalents for total phenolics, 9.5 and 2.3 mg/g catechin equivalents for total flavonoids and 18.8 and 4.4 mg/g Trolox equivalents for antioxidant activity on a dry-weight basis. Strong positive correlations were found among total phenolics, total flavonoids and antioxidant activity. Site and year of cultivation significantly affected the three parameters studied.
DORDRECHT
0014-3065
10.1007/s11540-015-9299-z
Grant Details