Valorization of olive oil solid waste using high pressure–high temperature reactor

Kinetic and Isothermal Modelling of the Adsorption of Compounds from Olive Mill Wastewater onto Activated Carbon

“…Total polyphenol (TP) concentration was measured using the Folin-Ciocalteu assay (24,25). Briefl y, 4.8 mL of pure water, 0.2 mL of sample, and 0.5 mL of Folin-Ciocalteu reagent were mixed and 1 mL of a 20 % sodium carbonate solution was added.…”

Influence of Temperature and Drying Time on Extraction Yield of Phenolic Compounds from Grape Pomace Variety “Portogizac”

“…Phenolic compounds are particularly important due to their beneficial effects on human health, and their application in improvement of flavour, colour and stability of food [4][5][6][7][8] . Besides polyphenols, grape waste contains proteins, polysaccharides and lignin, which are associated with functional groups responsible for metal ion adsorption, thus making this agricultural waste a good alternative to expensive synthetic adsorbents.…”

A non-conventional method to extract D-limonene from waste lemon peels and comparison with traditional Soxhlet extraction

“…For this reason, the aim of this work was to present a nonconventional method to extract D-limonene from lemon peels using hexane in a high-pressure and temperature agitated reactor. High pressure -high temperature extraction (HPTE) has been successfully used to extract phenolic compounds from grape wastes [51][52][53], olive oil solid wastes [54] and Agave americana (L.) leaves [55]. High temperature extraction can promote higher analyte solubility by increasing both solubility and mass transfer rate and, also decrease the viscosity and surface tension of solvents, thus improving extraction rate [56].…”