This invention provides a technique that is capable of efficiently producing a phospholipid concentrate without using centrifugation and that is suitable for scaling up, the technique being for use in obtaining a phospholipid concentrate by subjecting an ethanol extract concentrate of bird breast meat to a degumming step and collecting gum. More specifically, the invention provides a method for producing a phospholipid concentrate, comprising a step of allowing a liquid mixture comprising an ethanol extract concentrate of bird breast meat and a 40 to 60 mass % aqueous ethanol solution in a mass ratio of 1:0.8 to 1.2 to stand at 40 to 60° C.

An apparatus and process for extracting organic molecular compounds from plant material and concentrating those into a viscous oil, the process supported by a machine architecture that heats, cools, and stirs a cooking mixture of plant material and a consumable solvent oil, the viscous oil suitable for use in sublingual tinctures, food products, and topical salves.

The present invention relates to processes for extracting lipid from vegetative plant parts such as leaves, stems, roots and tubers, and for producing industrial products such as hydrocarbon products from the lipids. Preferred industrial products include alkyl esters which may be blended with petroleum based fuels.

The present invention provides a method of efficiently separating solid fat from polyunsaturated fatty acid grease. The method comprises adding a certain amount of inert material to the polyunsaturated fatty acid grease, and cooling crystallization, and then filtering through a filter to obtain clarified polyunsaturated fatty acid grease. Afterwards introducing hot gas through the filter to make solid fat adsorbed on a filter cake in the filter dissolved and then recycling it through a filter plate. Inert solid substances can be applied next time. The method of the present invention can be efficiently separated saturated and low-saturated fatty acids from polyunsaturated fatty acid grease. In the process, the winterization crystallization time is short, the crystallization is complete, the crystal separation is easy. It will not cause some solid fat melted and thus re-enter the filtrate due to long separation and blowing dry in conventional process. The yield of final product is high up to 89.8%-97.8%. After winterization, a lipid clarity of the polyunsaturated fatty acid grease is good, and no crystal precipitation would occur at 0° C. for 5 hrs.

The disclosure discloses an enzymatic method for preparation of lecithin polyunsaturated fatty acids (PUFAs), and belongs to the technical field of separation and application of enzyme. A heat treatment procedure is added after a reaction substrate is in contact with an enzyme to adjust the ratio of sn-1 lysophospholipid PUFAs to sn-2 lysophospholipid PUFAs in a reaction product and to promote the production of sn-2 lysophospholipid PUFAs, thereby promoting the production of lecithin PUFAs, which greatly increases the production efficiency of lecithin PUFAs and the lecithin PUFA content in the product. With simple operations and high reaction rate, the method can significantly increase the content of lecithin PUFAs in the product, can effectively avoid the oxidation of PUFA, and has high economic benefits and promising industrial application prospects.

[Problem] To provide: a method for suppressing the coloration of oils and fats during frying; and a coloring inhibitor. [Solution] A method for suppressing the coloration of an oil/fat composition for frying, the method comprising a step for adding a prepared oil to an edible oil or fat, wherein the prepared oil is obtained through (1) a degumming step, (2) a neutralization step which may or may not be performed, (3) a bleaching step which may or may not be performed, and (4) a deodorizing step, in this order, in the process of refining a crude oil obtained from an oil feedstock, and the absorbance difference determined by subtracting the absorbance at a wavelength of 750 nm from the absorbance at a wavelength of 660 nm of the prepared oil obtained from step (3) is at least 0.030 when isooctane is used as the control. A coloring inhibitor characterized by containing said prepared oil.

A method to purify black liquor soap (BLS) from sulfur compounds is disclosed. In the BLS desulfurization method, a BLS composition is heated in an inert atmosphere and sulfur is removed via aqueous extractions with inorganic base in the absence of other chemicals such as brine, sulfate salts and carbonate salts. The purified BLS composition exhibits favorable properties, including reduced sulfur content, lower color, and improved odor characteristics. The resulting tall oil compositions, depitched tall oil compositions, tall oil distillation fractions, and products derived therefrom also show reduced sulfur content, lower color, and improved odor characteristics.

A process and apparatus for extracting plant oil from plant material by cooling an alcohol solvent to a temperature of −40° C. or lower, contacting the plant material with the cold solvent to extract plant oil to provide a solvent and plant oil mixture, heating the mixture to convert the solvent to a gaseous state to thereby separate the solvent from the plant oil, and cooling the separated gaseous solvent to a liquid to recover the solvent. The apparatus may include a heat exchanger to cool the alcohol solvent, a centrifuge configured to receive and contact a batch of plant material with the cold solvent to extract oil from the plant material to provide a solvent and oil mixture, and a programmable logic controller to monitor and control the temperature of the cold solvent, control the centrifuge to agitate the solvent in contact with the plant material for a period of time and to rotate for a period of time to separate the mixture from the plant material. A process and apparatus may also decarboxylate the separated plant oil.

A plant oil extraction apparatus may include a volatile solvent tank, an oil bearing plant material container for receiving at least some of the volatile solvent, a chiller for cooling volatile solvent to a liquid state in contact with the oil bearing plant material, a vessel for collecting at least some of the mixture of volatile solvent and plant material, a heater for heating at least liquid state volatile solvent to a gas state, a compressor for compressing volatile solvent gas to a higher pressure, and a heat exchanger to cool and condense at least part of the compressed solvent gas to a liquid state and to return at least part of the condensed liquid volatile solvent to the solvent tank. The cycling of the apparatus may at least in part be controlled by an electronic controller and a human machine interface may be used by an operator to input data to the electronic controller.

A method for decolorization and deodorization of egg yolk oil comprises at least: adding a first ether solution to a crude egg yolk oil, and performing a first stirring process, to produce a first egg yolk oil mixture; adding activated carbon to the first egg yolk oil mixture, performing a second stirring process, and removing the activated carbon, to produce a second egg yolk oil mixture; adding a second ether solution and distilled water to the second egg yolk oil mixture, and performing a third stirring process, to produce a third egg yolk oil mixture; and removing distilled water, part of the first ether solution, and part of the second ether solution from the third egg yolk oil mixture by a distillation process, and removing the remaining first ether solution and the remaining second ether solution by a vacuum process to produce a decolorized and deodorized egg yolk oil.