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Type: Artigo de periódico
Title: Determination of anthocyanins from camu-camu (Myrciaria dubia) by HPLC-PDA, HPLC-MS, and NMR
Author: Zanatta, CF
Cuevas, E
Bobbio, FO
Winterhalter, P
Mercadante, AZ
Abstract: Camu-camu [Myrciaria dubia (HBK) McVaugh] is a small fruit native to the Amazonian rain forest. Its anthocyanin profile has now been investigated for the first time. Fruits from two different regions of the Sac, Paulo state, Brazil, were analyzed. The major anthocyanins were isolated by high-speed countercurrent chromatography. HPLC-PDA, HPLC-MS/MS, and H-1 NIVIR were used to confirm the identity of the main anthocyanins of camu-camu. Cyanidin-3-glucoside was identified as the major pigment in the fruits from both regions, representing 89.5% in the fruits produced in Iguape and 88.0% in those from Mirandopolis, followed by the delphinidin-3-glucoside, ranging between 4.2 and 5.1%, respectively. Higher total anthocyanin contents were detected in the fruits from Iguape (54.0 +/- 25.9 mg/100 g) compared to those from Mirandopolis (30.3 +/- 6.8 mg/100 g), most likely because of the lower temperatures in the Iguape region.
Subject: anthocyanins
Myrciaria dubia
high-speed countercurrent chromatography
climatic effects
Country: EUA
Editor: Amer Chemical Soc
Rights: fechado
Identifier DOI: 10.1021/jf051357v
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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