RT info:eu-repo/semantics/article
T1 Impregnation of açaí residue extracts in silica-aerogel
A1 Buratto, Rafaella Theodoro
A1 Hoyos, Edwin G.
A1 Cocero Alonso, María José
A1 Martín, Ángel
K1 Euterpe oleracea Mart
K1 Extracción por microondas
K1 Aerogel de sílice
K1 Silica aerogel
K1 23 Química
AB Açaí (Euterpe Oleracea mart.) is a berry found in Amazon Rainforest, with a high content of polyphenols and flavonoids. This work studied the formulation of bioactive compounds extracted from E. Oleracea fruit, by impregnation in silica-aerogel. Three fruit fractions were studied: pulp, seeds and slurry, and two extracts were obtained from each fraction: an oil fraction obtained by Soxhlet extraction, and a polyphenolic-rich extract obtained by Pressurized Microwave Assisted Extraction. With pulp oil, impregnation yields of 58.6% were obtained by air drying, with surface area of 0.7687 m²/g, while with supercritical drying method, the impregnation yield decreased to 15.3%, with surface area of 823.4 m²/g. This indicates a loss of oil by extraction during drying. With pulp extract, the best result was obtained using indirect wet impregnation and supercritical drying, with 16.4% of impregnation. By release assay, contents of 2.276 mg/g(aerogel) of polyphenols and 0.197 mg/g(aerogel) of anthocyanins were identified.
PB Elsevier
SN 0896-8446
YR 2019
FD 2019
LK http://uvadoc.uva.es/handle/10324/46074
UL http://uvadoc.uva.es/handle/10324/46074
LA eng
NO Journal of Supercritical Fluids, 2019, vol. 146, p. 120-127
NO Producción Científica
DS UVaDOC
RD 23-nov-2024