Deodorization by instant controlled pressure drop autovaporization of rosemary leaves prior to solvent extraction of antioxidants

Solvent-free extraction of food and natural products

“…Compared to extraction where the sample was not pre-treated by DIC, an improvement of solid-fluid extraction of the compound of interest was shown in these studies. The DIC process can also be used for the extraction of polyphenols, such as diterpens (carnosic acid) and phenolic acids (rosmarinic acid) from rosemary leaves, to illustrate the bio-refinery concept [24].…”

Instant controlled pressure drop texturing for intensifying ethanol solvent extraction of olive (Olea europaea) leaf polyphenols

“…DIC treatment is based on the thermo-mechanical effects issued from an abrupt pressure drop (ΔP/Δt>0.5 MPa.s -1 ) towards a 5 kPa vacuum taking place after a short-time/high-temperature and pressure stage [21][22][23]. DIC-treatment can be performed through multi-cycles.…”

What is the best ethanol‐water ratio for the extraction of antioxidants from rosemary? Impact of the solvent on yield, composition, and activity of the extracts

“…At the industrial level, oil soluble rosemary extracts are obtained via an extraction using liquid solvents or supercritical carbon dioxide. Generally, acetone , pure ethanol or hydro‐alcoholic mixtures with high content in ethanol (80–100 %) are selected to extract both carnosic (CA) and rosmarinic (RA) acids . These molecules are known as the main antioxidants in rosemary and are of special interest due to a strong market demand.…”