Updating the status quo on the extraction of bioactive compounds in agro-products using a two-pot multivariate design. A comprehensive review

Abstract

Extraction is regarded as the most crucial stage in analyzing bioactive compounds. Nonetheless, due to the intricacy of the matrix, numerous aspects must be optimized during the extraction of bioactive...

Recovery of anthocyanins from Eugenia spp. fruit peels: a comparison between heat- and ultrasound-assisted extraction

“…32 However, the low pH used in our extractions may have positively affected the anthocyanin stability, preventing its breakdown and consequent colour loss. 37…”

“…This is partly due to the production of a signicant number of OH radicals through the known cavitation effects, which trigger oxidation mechanisms. 29,32,33 Fig. 1 3D response surface plots illustrating the effects of the independent variables time (t), temperature (T) or power (P), and solvent (S, ethanol percentage) on extraction yield (Y 1 ) and total anthocyanin content (Y 2 ) obtained from E. brasiliensis fruit peel using heat-assisted extraction (HAE) and ultrasound-assisted extraction (UAE) processes (A) and studentized residual plots (B).…”

“…Therefore, this intensication factor promotes the breakdown of plant cell walls, thus improving mass transfer. 32,33 However, when dealing with polyphenols, more specically anthocyanins, the use of high ultrasonic power can increase the extraction yield up to a certain level and then lead to their degradation aer that. This is partly due to the production of a signicant number of OH radicals through the known cavitation effects, which trigger oxidation mechanisms.…”

“…3,4 Among the most common sources of anthocyanins, redpurple berries such as grapes, blueberries, blackberries, cranberries, and purple corn stand out. 7,8 These pigments can also be found in grape pomace and winery by-products, among other plant waste from the agri-food sector. 7 Fortunately, there is a growing trend towards the recovery of anthocyanins from food waste and by-products, as well as the use of green solvents and more efficient and energy-saving technologies.…”

Extraction and Emulsification of Carotenoids from Carrot Pomaces Using Oleic Acid

“…Using RSM, the influence of independent factors and the interaction among independent factors on dependent responses can be investigated by establishing the polynomial regression models . RSM with central Box-Behnken design (BBD) and composite design (CCD) models were commonly used to optimize the UAE process . The advantages of BBD compared to CCD do not possess extreme points; thus, it has fewer experimental trials than CCD .…”