Determination of Polar Compounds in Guava Leaves Infusions and Ultrasound Aqueous Extract by HPLC-ESI-MS
Joint Authors
Verardo, Vito
Díaz-de-Cerio, Elixabet
Gómez-Caravaca, Ana María
Fernández-Gutiérrez, Alberto
Segura-Carretero, Antonio
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-19
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Literature lacks publications about polar compounds content in infusion or guava leaves tea.
Because of that, a comparison between different times of infusion and a conventional ultrasound aqueous extract was carried out.
Several polar compounds have been identified by HPLC-ESI-MS and their antioxidant activity was evaluated by FRAP and ABTS assays.
Four different classes of phenolic compounds (gallic and ellagic acid derivatives, flavonols, flavanones, and flavan-3-ols) and some benzophenones were determined.
The quantification results reported that the order, in terms of concentration of the classes of polar compounds in all samples, was flavonols > flavan-3-ols > gallic and ellagic acid derivatives > benzophenones > flavanones.
As expected, the aqueous extract obtained by sonication showed the highest content in the compounds studied.
Significative differences were noticed about the different times of infusion and five minutes was the optimal time to obtain the highest content in polar compounds using this culinary method.
All the identified compounds, except HHDP isomers and naringenin, were positively correlated with antioxidant activity.
American Psychological Association (APA)
Díaz-de-Cerio, Elixabet& Verardo, Vito& Gómez-Caravaca, Ana María& Fernández-Gutiérrez, Alberto& Segura-Carretero, Antonio. 2015. Determination of Polar Compounds in Guava Leaves Infusions and Ultrasound Aqueous Extract by HPLC-ESI-MS. Journal of Chemistry،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1067374
Modern Language Association (MLA)
Díaz-de-Cerio, Elixabet…[et al.]. Determination of Polar Compounds in Guava Leaves Infusions and Ultrasound Aqueous Extract by HPLC-ESI-MS. Journal of Chemistry No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1067374
American Medical Association (AMA)
Díaz-de-Cerio, Elixabet& Verardo, Vito& Gómez-Caravaca, Ana María& Fernández-Gutiérrez, Alberto& Segura-Carretero, Antonio. Determination of Polar Compounds in Guava Leaves Infusions and Ultrasound Aqueous Extract by HPLC-ESI-MS. Journal of Chemistry. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1067374
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1067374