Effects of high-intensity ultrasound process parameters on the phenolic compounds recovery from araticum peel

Abstract

In this work, we investigated the effects of the nominal ultrasonic power (160-640 W) and process time (0.5-5.0 min) on the phenolic compounds recovery and antioxidant activity from araticum peel. The individual and synergistic effects of the process variables on the phenolic recovery were estimated using a full factorial experimental design. Operating at high nominal ultrasonic powers was possible to obtain high phenolic yields and antioxidant activities at short process times (≤5 min). The HPLC-ESI-QTOF-MS/MS analysis revealed that the araticum peel sample possessed 142 phytochemicals, 123 of which had not been reported in the literature for this raw material yet. The most abundant phenolic compounds recovered were epicatechin, rutin, chlorogenic acid, catechin and ferulic acid. Thus, high-intensity ultrasound technology proved to be a simple, efficient, fast and low environmental impact method for obtaining phenolic compounds from araticum peel. In addition, araticum peel showed to be a promising source bioactive natural phenolics for further applications in the food, nutraceutical, cosmetic and pharmaceutical industries.

Activity of catechins and their applications

“…Chemical modification, molecular interaction mechanisms, hydrogen bonding, and nanoparticle treatment increase efficiency Ferreira-Nunes et al 2017, Magalhães et al 2016, Cruz et al 2015, Yang et al 2015a, Chen et al 2010, Yang et al 2015b, Niu et al 2017, Klein et al 2012, Skowyra et al 2013, Arruda et al 2019 avoid heating them as much as possible. The lower the pH level, the more stable the anti-oxidant activities of green tea compounds.…”

“…However, water extracts were effective only in the early stages of the oxidation process, showing that 75% ethanol extraction is the best method for polyphenol isolation (Skowyra et al 2013). Asynergistic study between process parameters found that augmentation of the ultrasonic treatment process significantly speeds the recovery of phenolic anti-oxidants and reduces the processing time (Arruda et al 2019). Procyanidin extracts of grape seeds prevent damage to most tissues and molecules from nanoparticle treatment (Niu et al 2017).…”

Ultrasound-assisted extraction of polyphenols from avocado residues: Modeling and optimization using response surface methodology and artificial neural networks

“…Hayat et al (2009) also used the RSM to optimize the extraction of citrus peel, obtaining as adequate factors the power of 152 W, the solid/solvent ratio of 16%, the extraction time of 49 seconds and the methanol concentration of 66%. These studies consider ultrasonic powers superior to that used in this work (100 W), Arruda et al (2018) have determined that for Ariticum peel the application of high ultrasonic powers in short times (< 5 minutes) also generates a high extraction efficiency. For example, Shirsath et al (2017) improved the curcumin extraction yields (72% efficiency) in the UAE with an ultrasonic power of 250 W and a frequency of 22 kHz (lower than that applied in our study, 42 kHz), in addition to using ethanol as a solvent and finding parameters optimum solid / liquid ratio 40%, temperature 35 °C and particle size 0.09 mm.…”

Mathematical Modelling of Ultrasound-Assisted Extraction Kinetics of Bioactive Compounds from Artichoke By-Products

“…Umaña et al [ 33 ] observed a 193% increase in the ergosterol extraction yield from mushroom stalks in 70% ethanol at 25 °C and 321 W/L of ultrasound power density in comparison to the extraction with mechanical agitation assistance (130 rpm). Arruda et al [ 46 ] carried out the extraction of phenolic compounds and chlorogenic acid from dried araticum peel with 50% ethanol-water ( v/v ), at a maximum temperature of 40.4 °C and applying ultrasound with a sonotrode of 13 mm of diameter, reaching ultrasound power from 160 W to 640 W. These authors reported extraction yields about 41% higher for TPC and 82% higher for CAC when extracting with the highest ultrasound power (640 W) compared with the lowest (160 W).…”