A method for recovering fish oil from aquatic biomass under cold conditions, the method comprising the steps of; providing an aquatic biomass; producing a minced aquatic biomass by mincing the aquatic biomass; providing an aqueous suspension of the minced aquatic biomass by mixing and/or homogenizing the minced aquatic biomass in an aqueous solution; adjusting the pH of said aqueous suspension to an extreme high pH or an extreme low pH; separating the aqueous suspension into a supernatant comprising a lower density emulsion fraction substantially comprising oil, aqueous solution and emulsified proteins, and a higher density fraction comprising substantially solubilized proteins, and optionally a pellet comprising collagenous components; collecting the lower density emulsion fraction; separating the lower density emulsion fraction into an oil phase and an aqueous phase; and collecting the oil from said oil phase.

The invention provides a method for the purifying of low-quality glyceridic material usually unfit for use as feed or food. The method includes a thermal treatment of the low-quality glyceridic material and chemical treatments. The purified oils and fat are suitable feed-stock or suitable components thereof for a hydrogenation processes yielding to high quality renewable diesel. The process thus permits the recycling of waste material that is usually discarded, into a valuable high-quality fuel.

A method of separating oil from a composition containing an oil and water emulsion, by adding a separation additive which is a mixture of a fatty ester of an alkoxylated polyol and a fatty ester of alkoxylated glycerol, and performing at least one oil separation step. The method is particularly suitable for separating corn oil from stillage produced in a corn ethanol mill.

A method of separating oil from a composition containing an oil and water emulsion, by adding a separation additive which is a mixture of a fatty ester of an alkoxylated polyol and a fatty ester of alkoxylated glycerol, and performing at least one oil separation step. The method is particularly suitable for separating corn oil from stillage produced in a corn ethanol mill.

A method and device for extracting oil from food waste is disclosed. Food waste is introduced into an elongated cylinder that is immersed under hot water. A drive shaft is actuated that simultaneously presses the food waste against an interior wall and moves the food waste through the cylinder. The content of the cylinder is subjected to steam treatment using a steam inlet in the cylinder. The combination of hot water, steam treatment and pressing recovers a high content of oil from the food waste.

The present invention relates generally to corn dry-milling, and more specifically, to methods for producing a high protein corn meal from a whole stillage byproduct produced in a corn dry-milling process for making ethanol and a system therefore. In one embodiment, a method for producing a high protein corn meal from a whole stillage byproduct includes, in a corn dry-milling process for making ethanol, separating the whole stillage byproduct into an insoluble solids portion and a thin stillage portion. The thin stillage portion is separated into a protein portion and a water soluble solids portion. Next, the protein portion is dewatered then dried to define a high protein corn meal that includes at least 40 wt % protein on a dry basis.

The present invention relates generally to corn dry-milling, and more specifically, to methods for producing a high protein corn meal from a whole stillage byproduct produced in a corn dry-milling process for making ethanol and a system therefore. In one embodiment, a method for producing a high protein corn meal from a whole stillage byproduct includes, in a corn dry-milling process for making ethanol, separating the whole stillage byproduct into an insoluble solids portion and a thin stillage portion. The thin stillage portion is separated into a protein portion and a water soluble solids portion. Next, the protein portion is dewatered then dried to define a high protein corn meal that includes at least 40 wt % protein on a dry basis.

The present invention relates to a method of for extracting oil from an oil-containing phospholipid composition, comprising the steps of: (a) Providing the oil-containing phospholipid composition, said composition comprising phospholipids and oil, the oil being in an amount of between and 80 wt % relative to the total weight of the oil composition; (b) Admixing water with the oil-containing phospholipid composition to obtain an aqueous composition, wherein the weight ratio of composition to water is between 6.0:1.0 and 1.3:1.0; (c) Separating the aqueous composition into an oil-rich fraction and an oil-depleted fraction, the oil-depleted fraction comprising water and phospholipids; and (d) removing the separated oil-rich fraction to obtain an aqueous, oil-depleted fraction comprising phospholipids; (e) optionally drying the aqueous, oil-depleted fraction to obtain a dried oil-depleted fraction comprising phospholipids.

The present invention relates to a method of for extracting oil from an oil-containing phospholipid composition, comprising the steps of: (a) Providing the oil-containing phospholipid composition, said composition comprising phospholipids and oil, the oil being in an amount of between and 80 wt % relative to the total weight of the oil composition; (b) Admixing water with the oil-containing phospholipid composition to obtain an aqueous composition, wherein the weight ratio of composition to water is between 6.0:1.0 and 1.3:1.0; (c) Separating the aqueous composition into an oil-rich fraction and an oil-depleted fraction, the oil-depleted fraction comprising water and phospholipids; and (d) removing the separated oil-rich fraction to obtain an aqueous, oil-depleted fraction comprising phospholipids; (e) optionally drying the aqueous, oil-depleted fraction to obtain a dried oil-depleted fraction comprising phospholipids.

A method of extracting oil from biological raw material includes creating a slurry of biological raw material, raising or lowering a pH of the slurry to separate lipid and protein components in the slurry, further separating the lipid and protein components into a first lipid rich phase and a protein rich phase, adjusting a pH of the first lipid rich phase to a point at which additional proteins in the first lipid rich phase coagulate, and recovering a second lipid rich phase from the additional coagulated proteins.