Hydrothermal pretreatment based on semi-continuous flow-through sequential reactors for the recovery of bioproducts from jabuticaba (Myrciaria cauliflora) peel
Tiago Linhares Cruz Tabosa Barroso, Rafael Gabriel da Rosa, William Gustavo Sganzerla, Luiz Eduardo Nochi Castro, Francisco Weshley Maciel-Silva, Maurı́cio A. Rostagno, Tânia Forster‐Carneiro
Abstract
This study evaluated a novel pretreatment process composed of two sequential flow-through hydrothermal reactors operated in a semi-continuous mode to recover value-added bioproducts from jabuticaba ( Myrciaria cauliflora ) peel. The system was operated at 15 MPa, 5 mL min −1 , feed of 10 g jabuticaba peel per reactor, 45 min of process duration, and temperature ranging from 60° to 210°C using the design of experiment (DOE) followed by response surface methodology (RSM). The results showed that the two sequential reactors at 135 °C following by 60 °C increased the monosaccharides (160.74 mg g −1 ), the extraction of cyanidin-3-glucoside (0.78 mg g −1 ) and the total phenolic compounds yields (0.58 mg g −1 ). The formation of inhibitors was more present in the two sequential reactors at 210 °C. The hydrothermal pretreatment designed demonstrated to be an eco-friendly technology for the recovery of value-added products from jabuticaba peel.