Journal
FOOD CHEMISTRY
Volume 127, Issue 1, Pages 34-41Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2010.12.080
Keywords
Phytonutrients; Phenolics; Antioxidants; Flavonols; Chlorogenic acid; Potato; Solanum tuberosum L.; Wild-species
Funding
- Washington State Potato Commission
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Potatoes from over fifty genotypes representing cultivars, breeding lines, primitive germplasm and wild species were analysed for phenolic content and hydrophilic antioxidant capacity. Genotypes with markedly higher amounts than the most commonly consumed potatoes were identified. Chlorogenic acid was the most abundant phenolic and ranged from 22 to 473 mg/100 g dry weight. Rutin and kaempferol-3-rutinose were the most abundant flavonols. Total phenolics ranged from 1.8 to 11 mg/g DW and antioxidant capacity from 27 to 219 mu mol TE/g DW. Total phenolics and antioxidants in these high-phytonutrient potatoes compared favourably to 15 other analysed vegetables. With the high per capita consumption of potatoes, widespread adoption of high-phytonutrient cultivars could significantly increase dietary intake of phytonutrients. Published by Elsevier Ltd.
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