Major anthocyanins and antioxidant activity of Nasturtium flowers (Tropaeolum majus)
2009
Garzón, G.A. | Wrolstad, R.E.
Major anthocyanins, ascorbic acid content, total phenolic content, and the radical scavenging activity against ABTS and DPPH radicals in petals of orange Nasturtium flowers (Tropaeolum majus), were investigated. Anthocyanin (ACN) content in the petals was 72mg/100g FW and pelargonidin 3-sophoroside represented 91% of the total ACN content. The ascorbic acid content was 71.5mg/100g and the total phenolic content as determined by the Folin-Ciocalteau method was 406mg GAE/100g FW. The radical scavenging activities against ABTS and DPPH radicals were 458 and 91.87μm trolox eq/g FW, respectively. The excellent free radical scavenging activities along with high phenolic and ascorbic acid content of Nasturtium flowers suggest that they could be source of natural pigments and antioxidants for applications in functional foods.
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