Non-conventional techniques for the extraction of antioxidant compounds and lycopene from industrial tomato pomace (

Autor: Paulo Sergio Nunes, Chada, Pedro Henrique, Santos, Luiz Gustavo Gonçalves, Rodrigues, Gilberto Alessandre Soares, Goulart, Jonatas Dias, Azevedo Dos Santos, Marcelo, Maraschin, Marcelo, Lanza
Rok vydání: 2021
Zdroj: Food chemistry: X. 13
ISSN: 2590-1575
Popis: This study aimed to use the non-conventional microwave-assisted extraction (MAE) and pressurized liquid extraction (PLE) techniques for recovering bioactive compounds from tomato pomace, a valuable agro-industrial waste. The raw material was previously dried using a spouted bed dryer and then submitted to extraction with green solvents. A response surface methodology (RSM) performed the optimization of MAE and PLE. Next, the yield and the antioxidant activity results were maximized, and the lycopene content of the optimum MAE and PLE extracts was assessed by high-performance liquid chromatography (HPLC). Additionally, a fraction of raw material was oven dried as a comparison. The PLE extract exhibited the highest antioxidant activity, whereas the MAE extract showed the highest lycopene content (59.66 µg lycopene/g extract), which represents a 66.93% lycopene recovery compared to a standard technique with acetone. The remarkable results show that the non-conventional drying and extraction techniques were effective in valorizing this neglected material.
Databáze: OpenAIRE