RT journal article
T1 Ultrasound assisted extraction of phenolic compounds from grapes
A1 Carrera Fernández, Ceferino Adrián
A1 Ruiz Rodríguez, Ana
A1 Palma Lovillo, Miguel
A1 García Barroso, Carmelo
A2 Química Analítica
K1 Ultrasound-assisted extraction
K1 Grapes
K1 Anthocyanins
K1 Phenolic compounds
K1 Tannins
AB A new ultrasound-assisted extraction method was developed for the determination of phenolic compoundspresent in grapes. Several extraction variables including extraction temperature (0–75 ◦C), outputamplitude (20, 50 and 100%), duty cycle (0.2 s, 0.6 s and 1 s), the quantity of sample (0.5–2 g), and the total extraction time (3–15 min) were evaluated. One of the most widely used extraction methods of polyphenol extraction has been used as reference method. Three parameters were compared: total amount of phenolic compounds, total amount of anthocyanins and total amount of tannic components. The resulting method produced similar or higher recoveries for these three parameters; however a much shorter extraction time was needed: 6 min (ultrasound assisted extraction method) instead of 60 min (reference method).Analytical properties for the new method were established, including limit of detection, limit of quantification, repeatability and reproducibility. The developed method was applied to two different types of grapes in different ripening degree.
PB Elservier
SN 0003-2670
YR 2012
FD 2012
LK http://hdl.handle.net/10498/29866
UL http://hdl.handle.net/10498/29866
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026