Flavonoids extracted from orange peelings tangelo (Citrus reticulata x Citrus paradisi) and their application as a natural antioxidant in sacha inchi (Plukenetia volubilis) vegetable oil

Neuroprotective and antioxidant activities of Colombian plants against paraquat and C2-ceramide exposure in SH-SY5Y cells

“…We found an increase in the intensity color or changes in color after NH 3 exposure when the chromoplates were measured at 365 nm (Table 3). Together, these results indicate the presence of flavonoids in the extracts (Mabry et al, 1970;Tenorio, 2016).…”

“…Additionally, we used NH 3 vapors to confirm the presence of phenols. Because the ammonia interacting with phenols increases their electron density, we can see an increase in the intensity of a color change read at 365 nm (Mabry et al, 1970;Lock Sing de Ugaz, 1997;Tenorio, 2016). We again found that the extracts were associated with phenols and flavonoids.…”

Effects of successive harvesting in the same year on quality and bioactive compounds of grapes and juices in semi-arid tropical viticulture

“…Total concentrations of flavanones in grape peels varied between 16.5 mg kg −1 in November and 480.7 mg kg −1 in August. Although some studies report the antioxidant activity of flavanones, this group of phenolic compounds is not commonly studied in grapes, as they are more abundant in citrus fruit (Domínguez, 2016).…”

Food Waste and Byproducts: An Opportunity to Minimize Malnutrition and Hunger in Developing Countries

“…In traditional agriculture and product processing, these residues have very little or no value (de Moraes Crizel et al, 2013). A small percentage of this waste is being recycled to obtain essential oils which can be used in the cosmetic, food and pharmaceutical industries (Domínguez, 2016). In recent years citrus residues have been shown to contain a high amount of polyphenols such as phenolic acids and flavonoids, mainly polymethoxyflavones, flavanones, and glycosylated flavanones (Domínguez, 2016;Sormoli and Langrish, 2016).…”

“…A small percentage of this waste is being recycled to obtain essential oils which can be used in the cosmetic, food and pharmaceutical industries (Domínguez, 2016). In recent years citrus residues have been shown to contain a high amount of polyphenols such as phenolic acids and flavonoids, mainly polymethoxyflavones, flavanones, and glycosylated flavanones (Domínguez, 2016;Sormoli and Langrish, 2016). Although flavonoids are generally considered to be non-nutritive agents, the interest in flavonoids has been found to be associated with increased interest in drug research to combat multiple serious chronic diseases (Roussos, 2011;Chen et al, 2017).…”