RT journal article
T1 A Novel Ultrasound-Assisted Extraction Method for the Analysis of Anthocyanins in Potatoes (Solanum tuberosum L.)
A1 Carrera Fernández, Ceferino Adrián
A1 Aliaño González, María José
A1 Valaityte, Monika
A1 Ferreiro González, Marta
A1 Fernández Barbero, Gerardo
A1 Palma Lovillo, Miguel
A2 Química Analítica
K1 anthocyanins
K1 Box-Behnken design
K1 purple potato
K1 red potato
K1 Solanum tuberosum
K1 ultrasound-assisted extraction
K1 optimization
K1 UHPLC
K1 antioxidant activity
K1 DPPH
AB Purple potato is one of the least known and consumed potato varieties. It is as rich in nutrients, amino acids and starches as the rest of the potato varieties, but it also exhibits a high content of anthocyanins, which confer it with some attractive health-related properties, such as antioxidant, pain-relieving, anti-inflammatory and other promising properties regarding the treatment of certain diseases. A novel methodology based on ultrasound-assisted extraction has been optimized to achieve greater yields of anthocyanins. Optimal extraction values have been established at 70 degrees C using 20 mL of a 60% MeOH:H2O solution, with a pH of 2.90 and a 0.5 s(-1) cycle length at 70% of the maximum amplitude for 15 min. The repeatability and intermediate precision of the extraction method have been proven by its relative standard deviation (RSD) below 5%. The method has been tested on Vitelotte, Double Fun, Highland and Violet Queen potatoes and has demonstrated its suitability for the extraction and quantification of the anthocyanins found in these potato varieties, which exhibit notable content differences. Finally, the antioxidant capacity of these potato varieties has been determined by means of 2,2-diphenyl-1-picrylhydrazyl (DDPH) radical scavenging and the values obtained were similar to those previously reported in the literature.
PB MDPI
SN 2076-3921
YR 2021
FD 2021-09
LK http://hdl.handle.net/10498/25834
UL http://hdl.handle.net/10498/25834
LA eng
NO This work has been supported by the project "EQC2018-005135-P" (Equipment for liquid chromatography by means of mass spectrometry and ion chromatography) of the State Subprogram of Research Infrastructures and Technical Scientific Equipment.
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026