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Molecules 2017, 22(1), 11; doi:10.3390/molecules22010011

Targeted Metabolomic Analysis of Polyphenols with Antioxidant Activity in Sour Guava (Psidium friedrichsthalianum Nied.) Fruit

1
Departamento de Química, Universidad Nacional de Colombia, AA 14490 Bogotá, Colombia
2
Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), C/Nicolás Cabrera, 9, Campus de Cantoblanco, 28049 Madrid, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Arturo San Feliciano and Celestino Santos-Buelga
Received: 25 October 2016 / Revised: 13 December 2016 / Accepted: 16 December 2016 / Published: 23 December 2016
(This article belongs to the Special Issue Flavonoids: From Structure to Health Issues)
View Full-Text   |   Download PDF [571 KB, uploaded 23 December 2016]   |  

Abstract

Psidium is a genus of tropical bushes belonging to the Myrtaceae family distributed in Central and South America. The polar extract of Psidium friedrichsthalianum Nied. was partitioned with ethyl ether, ethyl acetate, and n-butanol, and the total phenolic content and antioxidant activity were measured by Folin-Ciocalteu and ABTS assays, respectively. The ethyl acetate fraction exhibited both the highest phenolic content and antioxidant activity. Due to the complexity of this fraction, an analytical method for the comprehensive profiling of phenolic compounds was done by UPLC-ESI/QqQ in MRM (multiple reaction monitoring) mode. In this targeted analysis, 22 phenolic compounds were identified, among which several hydroxybenzoic, phenylacetic, and hydroxycinnamic acid derivatives were found. This is the first time that (+)-catechin, procyanidin B1, procyanidin B2, and (−)-epicatechin have been reported as constituents of sour guava. A fractionation by exclusion size, C18-column chromatography, and preparative RRLC (rapid resolution liquid chromatography) allowed us to confirm the presence of ellagic acid and isomeric procyanidins B, well-known bioactive compounds. The content of phenolic compounds in this fruit shows its potential for the development of functional foods. View Full-Text
Keywords: myrtaceae; tropical fruit; metabolomics; targeted analysis; ellagic acid myrtaceae; tropical fruit; metabolomics; targeted analysis; ellagic acid
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Cuadrado-Silva, C.T.; Pozo-Bayón, M.Á.; Osorio, C. Targeted Metabolomic Analysis of Polyphenols with Antioxidant Activity in Sour Guava (Psidium friedrichsthalianum Nied.) Fruit. Molecules 2017, 22, 11.

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