Comparison between Ultrasonic Bath and Sonotrode Extraction of Phenolic Compounds from Mango Peel By-Products
Metadatos
Afficher la notice complèteAuteur
Aznar Ramos, María José; Razola Díaz, María del Carmen; Verardo, Vito; Gómez Caravaca, Ana MaríaEditorial
MDPI
Materia
Mango waste Polyphenols Box-Behnken HPLC-MS Antioxidant activity Ultrasound-assisted extraction
Date
2022-11-01Referencia bibliográfica
Aznar-Ramos, M.J... [et al.]. Comparison between Ultrasonic Bath and Sonotrode Extraction of Phenolic Compounds from Mango Peel By-Products. Horticulturae 2022, 8, 1014. [https://doi.org/10.3390/horticulturae8111014]
Patrocinador
MCIN/AEI/FEDER "Una manera de hacer Europa" RTI2018-099835-A-I00Résumé
Phenolic compounds present in mango peel byproducts have been reported to have several
beneficial health properties. In this study, we carried out an optimization of phenolic compounds
using ultrasound-assisted extraction via ultrasonic bath and sonotrode. To optimize the variables
of extraction, a Box–Behnken design was used to evaluate the best conditions to obtain high total
phenolic compound extraction and high antioxidant activity evaluated by different methods (DPPH,
ABTS, and FRAP). The optimal ultrasonic bath conditions were 45% ethanol, 60 min, and 1/450 ratio
sample/solvent (w/v) whereas optimal sonotrode conditions were 55% ethanol, 18 min, and 65%
amplitude. The extracts obtained at the optimal conditions were characterized by HPLC–ESI-TOF-MS.
A total of 35 phenolic compounds were determined and, to our knowledge, several of them were
tentatively identified for the first time in mango peel. The samples were composed mainly by phenolic
acids derivatives, specifically of galloylglucose and methylgallate, which represented more than 50%
of phenolic compounds of mango peel byproducts. In conclusion, sonotrode is a valuable green
technology able to produce enriched phenolic compound extracts from mango peel byproducts that
could be used for food, nutraceutical, and cosmeceutical applications.