RECOVERY BIOACTIVE COMPOUNDS FROM GRAPE RESIDUE OF PERUVIAN AMAZON USING GREEN TECHNOLOGY

Favoritar este trabalho
Como citar esse trabalho?
Detalhes
  • Tipo de apresentação: Pôster
  • Eixo temático: Engenharia de Processos e Tecnologias Emergentes (ET)
  • Palavras chaves: Supercritical fluids; Microwave; anthocyanins;
  • 1 Facultad de Ingeniería Agroindustrial / Universidad Nacional de San Martín
  • 2 Facultad de Ingeniería Agroindustrial / Universidad Nacional de San Martin
  • 3 Escuela Profesional de Ingeniería Agroindustrial / Universidad Nacional Autónoma de Chota

RECOVERY BIOACTIVE COMPOUNDS FROM GRAPE RESIDUE OF PERUVIAN AMAZON USING GREEN TECHNOLOGY

José Luis Pasquel Reátegui

Facultad de Ingeniería Agroindustrial / Universidad Nacional de San Martín

Resumo

Agroindustrial fruit residues are rich sources of natural antioxidants. The grape residue presents high content of phenolic compounds such as anthocyanins, phenolic acids, catechins, and stilbenes, which have health-promoting properties. In this sense, special attention is being focused on the extraction of bioactive compounds from this bio-product. Extracts with a high content of bioactive compounds were recovered from the grape residue (Vitis labrusca) native to the Peruvian Amazon, using two techniques: Supercritical Fluid Extraction (SFE) and Microwave-Assisted Extraction (MAE). Separation and quantification were done by UHPLC-Fluorescence. Fourteen anthocyanins were identified, with Malvidin 3-glucoside being the major compound. In addition, analysis of phenolic content, antioxidant capacity (ABTS and DPPH), and monomeric anthocyanins were performed. The variables controlled by the SFE were temperature (41-45-55-65-69 °C) and pressure (10-13-18-23-25 MPa). CO2 and co-solvent (Ethanol) flows were fixed at 2 mL/min and 1 ml/min, respectively. In the MAE, the study variables were methanol concentration (25%, 50%, and 75%), temperature (50, 75, and 100 °C), and power (200, 500, and 800 W). As expected, the highest yield (15.79 %) was observed by the SFE technique at 55 °C and 25 MPa. Furthermore, the concentration of phenolics, monomeric anthocyanins, and antioxidant capacity was higher in the extracts obtained by SFE due to the SFE selectivity and the use of ethanol, which modified the polarity and density of the solvent, improving the extraction yield.

Compartilhe suas ideias ou dúvidas com os autores!

Sabia que o maior estímulo no desenvolvimento científico e cultural é a curiosidade? Deixe seus questionamentos ou sugestões para o autor!

Faça login para interagir

Tem uma dúvida ou sugestão? Compartilhe seu feedback com os autores!