Natural antioxidant of rosemary extract used as an additive in the ultrasound-assisted extraction of anthocyanins from lingonberry (Vaccinium vitis-idaea L.) pomace

Effect of Antioxidant and Pro-oxidant on the Stability of Microencapsulated Squalene by Spray Drying

“…However, the antioxidant did not show any significant difference in degradation rate constant, compared to other samples, even in powder with large diameter (Ld-Anti and Md-Anti). This confirmed the role of antioxidant in preventing oxidation (Jin et al, 2019;Yeşilsu & Özyurt, 2019), and to also support powder with larger oil droplet diameter, in order to effectively perform similarly to small oil droplet. Furthermore, Weibull distribution has been applied as a common kinetic model to correlate degradation mechanism in solid-state reactions.…”

Extraction of bioactive compounds from juçara pulp (Euterpe edulis M.) is affected by ultrasonic power and temperature

“…The conventional solvent extraction process for anthocyanin extraction is associated with long extraction times, high consumption of solvents, and low extraction efficiency (Bonfigli et al, 2017). Therefore, emerging technologies such as ultrasound-assisted extraction (UAE) seem to be promising options, which can be used for extracting compounds from different sources (Fernandes et al, 2020;Jin et al, 2019;Porto;Porretto;Decorti, 2013).…”

“…Ultrasound is a mechanical wave that operates in the frequency range between 20 kHz and 1 GHz and propagates through solid, liquid, and gaseous media. It has been used to extract various organic compounds, including phenolic compounds, from several different matrices (Carrera et al, 2012;Corbin et al, 2015;Jin et al, 2019). Thus, ultrasound can be considered a good alternative for improving the extraction of anthocyanins because of increased mass transfer rates and the possibility of rupturing of the cell wall during the cavitation process, which can lead to greater extraction (Bonfigli et al, 2017;Fernandes et al, 2020;López et al, 2018;Porto;Porretto;Decorti, 2013;Shirsath;Sonawane;Gogate, 2012).…”

“…Thus, ultrasound can be considered a good alternative for improving the extraction of anthocyanins because of increased mass transfer rates and the possibility of rupturing of the cell wall during the cavitation process, which can lead to greater extraction (Bonfigli et al, 2017;Fernandes et al, 2020;López et al, 2018;Porto;Porretto;Decorti, 2013;Shirsath;Sonawane;Gogate, 2012). UAE is considered a promising technique as it offers many advantages: simple manipulation (Jin et al, 2019), low cost of equipment (Carrera et al, 2012), higher extraction yield efficiency in terms of time and solvent consumption (Adjé et al, 2010;Ivanovic et al, 2014), reduced energy and water consumption (Pinela et al, 2019), and use in low temperatures that can avoid thermal damage to extracts; thus, minimizing the loss of bioactive compounds (Bonfigli, et al, 2017;Corbin et al, 2015). The efficiency of this technique is affected by the process variables of temperature and ultrasonic power (Pinela et al, 2019), and therefore, optimizing these variables is important.…”

The Effect of Fe3+, Fe2+, Co2+ e Cr3+ Ions in the Oxidative Stability and Kinetics of biodiesel Oxidation Reaction With and Without the Addition of Rosemary Extract

“…18 Jin et al (2019) stated that the carnosic acid present in rosemary is a strong antioxidant, capable of eliminating hydroxyl radicals by preventing the formation of singlet oxygen and perhydroxyl radicals that propagate the biodiesel oxidation reaction. 19 Messias et al (2018) 20 used rosemary extract to prevent biodiesel oxidation and found that even after 6 months of storage, biodiesel still had an induction period longer than 8 hours. Chendynski et al (2019) 12 studied the effect of iron ions in the biodiesel oxidative stability and found that samples containing rosemary extract presented higher induction period value and lower rate constants.…”