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Extraction of anthocyanins and total phenolic compounds from açai (euterpe oleracea mart.) using an experimental design methodology. part 1: Pressurized liquid extraction

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URI: http://hdl.handle.net/10498/22732

DOI: 10.3390/agronomy10020183

ISSN: 2073-4395

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Author/s
Aliaño González, María José; Ferreiro González, Marta; Espada Bellido, Estrella; Carrera Fernández, Ceferino; Palma Lovillo, Miguel; Álvarez Saura, José Ángel; Ayuso Vilacides, Jesús; Fernández Barbero, Gerardo
Date
2020-01
Department
Química Analítica; Química Física
Source
Agronomy 2020, 10(2), 183
Abstract
Currently, açai is one of the most important fruits present in the world. Several studies have demonstrated its high content in phenolic compounds and anthocyanins. Both of them are responsible of interesting properties of the fruit such as anti-inflammatory, antioxidant or anticancer. In the present study, two optimized pressurized liquid extraction (PLE) methods have been developed for the extraction of anthocyanins and total phenolic compounds from açai. A full factorial design (Box-Behnken design) with six variables (solvent composition (25%-75% methanol-in-water), temperature (50-100°C), pressure (100-200 atm), purge time (30-90 s), pH (2-7) and flushing (50%-150%)) were employed. The percentage of methanol in the extraction solvent was proven to be the most significant variable for the extraction of anthocyanins. In the case of total phenolic compounds, the extraction temperature was the most influential variable. The developed methods showed high precision, with relative standard deviations (RSD) of less than 5%. The applicability of the methods was successfully evaluated in real samples. In conclusion, two rapid and reliable PLE extraction methods to be used for laboratories and industries to determine anthocyanins and total phenolic compounds in açai and its derived products were developed in this work.
Subjects
açai; anthocyanins; Box–Behnken design; phenolic compounds; pressurized liquid extraction; UHPLC
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Atribución 4.0 Internacional
This work is under a Creative Commons License Atribución 4.0 Internacional

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