Journal
FOOD CHEMISTRY
Volume 185, Issue -, Pages 277-283Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.02.086
Keywords
Neomitranthes obscura; Anthocyanins; HPLC/DAD/MS; Myrtaceae
Funding
- European Union (FEDER funds through COMPETE)
- National Funds (FCT, Fundacao para a Ciencia e Tecnologia) [Pest-C/EQB/LA0006/2013]
- European Union (FEDER funds) [NORTE-07-0124-FEDER-000069]
- Brazilian Research Agency (Coordenacao de Aperfeicoamento de Nivel Superior - CAPES)
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Neomitranthes obscure (DC.) N. Silveira is a Brazilian fruit belonging to the Myrtaceae family that contains anthocyanins in the peel and was studied for the first time in this work. Delphinidin-3-O-galactoside, delphinidin-3-O-glucoside, cyanidin-3-O-galactoside, cyanidin-3-O-glucoside, cyanidin-3-O-arabinoside, petunidin-3-O-glucoside, pelargonidin-3-O-glucoside, peonidin-3-O-galactoside, peonidin-3-O-glucoside, cyanidin-3-O-xyloside were separated and identified by LC/DAD/MS and by co-elution with standards. Reliable quantification of anthocyanins in the mature fruits was performed by HPLC/DAD using weighted linear regression model from 0.05 to 50 mg of cyaniding-3-O-glucoside L-1 because it gave better fit quality than least squares linear regression. Good precision and accuracy were obtained. The total anthocyanin content of mature fruits was 263.6 +/- 8.2 mg of cyanidin-3-O-glucoside equivalents 100 g(-1) fresh weight, which was in the same range found in literature for anthocyanin rich fruits. (C) 2015 Published by Elsevier Ltd.
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