resumo
Concentrated in the skins of red grapes are the anthocyanins, the primary colorants responsible for the fruits' reddish-purple color. These colorants are recognized for their significant antioxidant properties and potent nutraceutical and pharmaceutical ingredients. Nevertheless, their widespread use is compromised by the (i) need for more efficient yet sustainable downstream processes for their recovery and (ii) by the challenges imposed by their poor stability. In this work, these drawbacks were overcome by applying eutectic solvents and stabilizing agents. Besides, the anthocyanins were successfully loaded into a solid host material (approved in both food and pharmaceutical sectors) based on silicon dioxide (SiO2, loading capacity: 1extract:7silica m/m). Summing up, with the process developed, the extraction yield (21 mganthocyanins.gbiomass−1) and the stability (under 55, 75, and 95 °C) of the recovered anthocyanins were over three times better than with the conventional process. Finally, the raw materials and solvents were recycled, allowing an economical and environmentally friendly downstream process. © 2022 Elsevier Ltd
categoria
Anthocyanins; Fruit; Pharmaceutical Preparations; Plant Extracts; Silicon Dioxide; Solvents; Vitis; Eutectics; Recovery; Silica; Silicon oxides; Solvents; acetic acid; alanine; ammonium acetate; anthocyanin; glycine; nicotinamide; pigment; silicon dioxide; solvent; stabilizing agent; anthocyanin; drug; plant extract; silicon dioxide; solvent; Antioxidant properties; Downstream process; Food grade; Grape pomace; Natural pigment; Natural pigment stability; Nutraceuticals; Pigment stability; Viticulture waste; aqueous solution; Article; biomass; controlled study; electrospray; extraction; grape pomace; high temperature; nonhuman; pore size; recycling; thermostability; ultra performance liquid chromatography; ultrasound assisted extraction; water content; fruit; Vitis; Anthocyanins
autores
de Souza Mesquita L.M.; Sosa F.H.B.; Contieri L.S.; Marques P.R.; Viganó J.; Coutinho J.A.P.; Dias A.C.R.V.; Ventura S.P.M.; Rostagno M.A.
nossos autores
Filipe Hobi Bordon Sosa
Investigador Júnior
