Extraction of antioxidant compounds from Jabuticaba (Myrciaria cauliflora) skins: Yield, composition and economical evaluation

Abstract

a b s t r a c tObtaining an extract with high antioxidant activity using environmentally friendly technologies and lowcost raw materials is of great interest. In the present work, a combined extraction process developed by our research group involving ultrasound treatment and agitated solvent extraction was evaluated. This method was compared in terms of yield, composition, and economical feasibility to traditional extraction methods, including ultrasound assisted, agitated bed and soxhlet extraction with ethanol (acidified or not). The proposed method maximizes the extraction of phenolic compounds with acceptable degradation of anthocyanin pigments from an unusual source: Brazilian jabuticaba (Myrciaria cauliflora) skins. The use of ultrasonic irradiation continuously supporting a main extraction process has demonstrated increased performance but implies in high consumption of energy and consequently, money. However, the procedure described in this paper appears to be a viable option because it uses shorter ultrasonic irradiation and results in high antioxidant activity extracts, and the anthocyanin profile corroborates literature data (cyanidin-3-glucoside and delphinidin-3-glucoside).

Volatile constituents of jabuticaba (Myrciaria jaboticaba(Vell.) O. Berg) fruits

“…Polyphenolics exhibit antiallergenic, antiviral, anti-inflammatory, and vasodilating properties (3), cytotoxicity against cancer cells (1), and inhibit oxidative and inflammatory enzymes (4). As deeply colored fruits were found to be a potentially rich source of anthocyanins, phenolic acids, flavonoids and depsides, jabuticaba fruits received increasing attention (5,6). However, the average consumer is not so much attracted to a certain food by vague health promises, but rather by its pleasant aroma.…”

Natural Antioxidant Activity and Compounds Content from Wastes of Euterpe edulis Berries

“…Nonetheless, different approaches and applications do not always provide the same results. Hence, the optimization processing is required (Santos et al, 2010). The optimum combination of power, exposition time, and concentration of extracting solvent to obtain the highest concentration of these compounds is extremely important to ensure efficient utilization of energy, solvents, and food matrix.…”

Supercritical Carbon Dioxide Extraction of Polyphenols from Pomegranate (Punica granatum L.) Leaves: Chemical Composition, Economic Evaluation and Chemometric Approach

“…The scale-up procedure assumed that the apparent bed density, extraction yield, and extraction time of the industrial process would be the same as those in the laboratory-scale procedure if the solvent-to-feed mass ratio (S/F) is constant. These assumptions have been corroborated by several previous works (Albuquerque & Meireles, 2012;Pereira & Meireles, 2010;Rosa & Meireles, 2005;Santos, Veggi, & Meireles, 2010). The feed mass was scaled-up as estimated according to the apparent bed density and extraction column volume.…”