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- W3208043196 abstract "An innovative ionic liquid ultrasound-assisted extraction (IL-UAE) approach using 1-Butyl-3-methylimidazolium tetrafluoroborate [BMIM][BF4] and 1-Butyl-3-methylimidazolium chloride [BMIM][Cl] for obtaining extracts rich in phenolic compounds (PC) from guava coproduct was investigated. A screening design 24, followed by a central composite design 22 with response surface methodology and desirability function were used to optimize the extraction condition of PC with antioxidant activity (AA). The results showed that 20 g L-1 of sample, during 25 min of ultrasound-assisted extraction at 45 °C, using 2.5 mol L-1 of [BMIM][BF4] was the optimal condition for the extraction of the PC from guava coproduct (1.18 eq. mg g-1 gallic ac.). The IL-UAE extracts showed a higher recovery for condensed tannins and ortho-diphenols and high AA by DPPH (2,2-Diphenyl-1-picrylhydrazyl), FRAP (ferric reducing antioxidant power), ABTS (2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonate)) and Cu2+ chelating methods compared to volatile organic solvents (VOS). IL-UAE represents an innovative, fast and straightforward approach for obtaining high-value PC with antioxidant activity from guava coproduct." @default.
- W3208043196 created "2021-11-08" @default.
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- W3208043196 date "2021-11-01" @default.
- W3208043196 modified "2023-09-25" @default.
- W3208043196 title "Innovative approach for obtaining phenolic compounds from guava (Psidium guajava L.) coproduct using ionic liquid ultrasound-assisted extraction (IL-UAE)" @default.
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- W3208043196 doi "https://doi.org/10.1016/j.bcab.2021.102196" @default.
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