The invention relates to a process for purification of oil by heat treatment in order to degrade phospholipids present in the non-purified oil.

An improved process for producing refined oils free of contaminating waxes, resins, and lipids from botanical plant matter using an improved in-line winterization process is disclosed. The biomass is fed into an extraction vessel where the oils are extracted using a solvent, followed by a two-stage separation. Both the temperature and pressure of the solvent going into the separators are controlled for effective separation. Additional solvent is added to enhance the separation efficiency between the refined oil and the undesired fraction containing the contaminants. This process provides an alternative to current wax mitigation techniques, such as alcohol based solvent winterization.

A process for making olive oil having a high polyphenol content and, in particular a high hydroxytyrosol content, comprises the conventional steps of transforming (II) olives (1) into an oily must (5); of resolving (V) the later into an oily juice (7), from which a base olive oil (8) is obtained, and into an aqueous juice (6) containing most of the polyphenols; and of separating (VII) the vegetation water (9) from the aqueous juice (6). Moreover, according to the invention, steps are provided of removing water (XV) from the vegetation water (9), preferably by evaporation, so as to obtain a polyphenol-enriched concentrate (11); and of mixing (XIX) the concentrate (11) with the base olive oil (8), so as to transfer said polyphenols from the former to the latter and to obtain a final polyphenol-enriched oil (12), along with an exhausted concentrate (11′). The step of removing water causes a polyphenol concentration increase, to enhance their interphase transfer, and, at the same time, it causes a viscosity and density increase, which makes the water phase, during the contact with the oil, less prone to form emulsions than the methods of prior art. The high polyphenol concentration remarkably improves the organoleptic quality of the oil and makes the latter more stable, besides producing well-known advantageous effects for the consumer's health. According to further aspects of the invention, an apparatus is provided for making such oils, as well as a concentrate for use in olive oils and also in any other vegetable or animal food oil, in cosmetics, bio-repellent products and the like.

There is a method for extracting bio-oil from algal biomass, in particular oily microalgae, using solvents of a Deep Eutectic Solvents (DES) capable of producing a bio-oil with a low content of phospholipids and inorganic salts, mainly sodium chloride.

This invention provides a technique that is capable of suppressing variation in the amount of phospholipids obtained in each operation when a phospholipid concentrate is obtained by subjecting an ethanol extract concentrate of livestock or poultry tissue to a degumming step and collecting gum. More specifically, the invention provides a method for producing a phospholipid concentrate from livestock or poultry tissue, comprising step (A) of mixing an ethanol extract concentrate of livestock or poultry tissue with water, the water being in an amount of less than 7 parts by mass per 100 parts by mass of the concentrate, and step (B) of centrifuging the obtained liquid mixture at 2° C. or lower.

Methods of extracting Nerium oleander plant species with a plant juice or plant oil are disclosed. Pharmaceutical and cosmetic compositions comprising the resulting Nerium oleander extracts and methods of using them are also disclosed.

The present disclosure is related to refining one or more grain oil composition streams (e.g., distillers corn oil or syrup) in a biorefinery to provide one or more refined grain oil products, where each grain oil product has targeted amounts of a free fatty acid component and the fatty acid alkyl ester component.

A method for producing a carotenoid enriched fatty acid composition includes: reacting an oil including free fatty acids and carotenoids with a basic solution; withdrawing, separately from the oil, an extraction solution including at least a portion of the free fatty acids, at least a portion of the carotenoids, and the basic solution; acidifying the extraction solution to produce an aqueous phase and a fatty acid phase, the fatty acid phase including the free fatty acids and the carotenoids of the extraction solution; and separating the fatty acid phase from the aqueous phase.

A method for refining vegetable oil is used to reduce formation of soaps. An acid-treated vegetable oil mixture is passed through a low shear mixing device prior to being fed to a static hydrodynamic reactor. The static hydrodynamic reactor induces a neutralization reaction that forms soaps in a pressurized vegetable oil mixture. The reacted mixture is discharged from the reactor to a downstream system for separating the formed soaps from the reacted mixture to form a refined vegetable oil having reduced soaps content.

A method of remediating pesticides from an agricultural oil includes mixing a reaction solvent, a reducing agent, and an agricultural oil into a reaction mixture in a reaction vessel, controlling the temperature of the reaction mixture, producing a pre-neutralization mixture including a separation solvent, transferring the pre-neutralization mixture into a neutralization reactor that contains a neutralization agent, mixing the pre-neutralization mixture with the neutralization agent and allowing separation into an aqueous layer and a separation solvent layer, draining the aqueous layer, and distilling the separation solvent in the separation solvent layer from the remediated agricultural oils. A system has a reactor vessel, the reactor vessel having one or more inlets to allow a reducing agent, the agricultural oil, the separation solvent, and other additives as needed to produce a reaction mixture, a temperature control unit to control a temperature of the reaction mixture at a predetermined temperature for a predetermined time, a neutralization vessel fluidically connected to the reactor vessel to receive the reaction mixture from the reactor vessel, the neutralization vessel having an inlet to allow a neutralization agent to be introduced into the neutralization vessel to produce a neutralized reaction mixture, and a valve arranged at a bottom of the neutralization vessel to allow an aqueous phase of the reaction mixture to be drained from the neutralization vessel.