Abstract: Products produced from distillers corn oil include once refined corn oil product, food grade corn oil product, and free fatty acid product which may be used in a variety of applications. The products have varying specifications for free fatty acid content and moisture content. The applications include food, feed, additives, and manufacture of industrial products.

Abstract: Methods for producing oil from distillers corn oil having high free fatty acid content are provided. In the method, distiller's corn oil is treated with a mixture including an alcohol to result in a low-free fatty acid oily phase and an alcohol phase. The mixture may also include an alkali. The alcohol may be a monohydric alcohol and an aqueous alcohol, such as an aqueous alcohol having a concentration of at least about 15% alcohol-by-weight. The low-free fatty acid phase may include oil and at least one impurity. The low-free fatty acid phase may be cooled, and the oil may be separated from the at least one impurity using membrane filtration.

Abstract: Methods for producing oil from distillers corn oil having high free fatty acid content are provided. In the method, distiller's corn oil is treated with a mixture including an alcohol to result in a low-free fatty acid oily phase and an alcohol phase. The mixture may also include an alkali. The alcohol may be a monohydric alcohol and an aqueous alcohol, such as an aqueous alcohol having a concentration of at least about 15% alcohol-by-weight. The low-free fatty acid phase may include oil and at least one impurity. The low-free fatty acid phase may be cooled, and the oil may be separated from the at least one impurity using membrane filtration.

Abstract: Methods for producing oil from fats and oils having high free fatty acid content are provided. In the method, fats and oils are treated with a mixture including an alcohol to result in a low-free fatty acid oily phase and an alcohol phase. The mixture may also include an alkali. The alcohol may be a monohydric alcohol and an aqueous alcohol, such as an aqueous alcohol having a concentration of at least about 15% alcohol-by-weight. The low-free fatty acid phase may include oil and at least one impurity. The low-free fatty acid phase may be cooled, and the oil may be separated from the at least one impurity. Fats and oils amenable to such a method may include, but are not limited to, waste fats, waste oils, high acid grease, high acid tallow, sorghum wheat oil, and corn oil, such as corn oil produced at an ethanol production plant.

Abstract: A multi-stage agitation system is used for degumming vegetable oil to increase yield and reduce phosphatides. A high-shear mixing phase, that can include multiple stages, subjects an oil mixed with acid and base to a shear rate of greater than 15,000 s?1 to form a neutralized oil mixture. A low-shear mixing phase is further used to disperse water into the neutralized oil mixture. A separation step can be used to remove the phosphatides from the treated oil to form a degummed oil product.

Abstract: Methods for recovering free fatty acids from fats and oils having high free fatty acid content are provided. In the method, fats and oils are treated with a mixture having an alcohol to result in a low-free fatty acid oily phase and an alcohol phase. The mixture may also include an alkali. The alcohol may be a monohydric alcohol and an aqueous alcohol, such as an aqueous alcohol having a concentration of at least about 15% alcohol by weight. The alcohol phase may be treated with an acid to form an aqueous alcohol phase and a lipid alcohol phase, wherein the lipid alcohol phase includes free fatty acids, which may be recovered. Fats and oils amenable to such a method may include, but are not limited to, waste fats, waste oils, high acid grease, high acid tallow, and corn oil, such as corn oil produced at an ethanol production plant.

Abstract: The invention provides methods and membranes for separating mixtures of two or more compounds such as fatty acids or fatty acid esters.

Abstract: A method for producing a high viscosity, low volatiles blown stripped plant-based oil is provided. The method may include the steps of: (i) obtaining a plant-based oil; (ii) heating the oil to at least 90° C.; (iii) passing air through the heated oil to produce a blown oil having a viscosity of at least 50 cSt at 40° C.; (iv) stripping the blown oil from step (iii) to reduce an acid value of the blown oil to from 5 mg KOH/g to about 9 mg KOH/g; (v) adding a polyol to the stripped oil from (iv); and (vi) stripping the oil from step (v) to reduce the acid value of the oil to less than 5.0 mg KOH/g or less.

Abstract: The present disclosure, in some embodiments, relates to systems and methods of treating biodiesel streams or fatty acid methyl ester streams. An example system for treating fatty acid methyl esters streams may comprise a fatty acid methyl ester stream and a strong acid catalyst resin vessel. The strong acid catalyst resin vessel may comprise a strong acid catalyst resin therein. The strong acid catalyst resin may have a density of about 30 lbs/ft3 to about 45 lb/ft3 within the strong acid catalyst resin vessel.

Abstract: Methods for recovering free fatty acids from fats and oils having high free fatty acid content are provided. In the method, fats and oils are treated with a mixture having an alcohol to result in a low-free fatty acid oily phase and an alcohol phase. The mixture may also include an alkali. The alcohol may be a monohydric alcohol and an aqueous alcohol, such as an aqueous alcohol having a concentration of at least about 15% alcohol by weight. The alcohol phase may be treated with an acid to form an aqueous alcohol phase and a lipid alcohol phase, wherein the lipid alcohol phase includes free fatty acids, which may be recovered. Fats and oils amenable to such a method may include, but are not limited to, waste fats, waste oils, high acid grease, high acid tallow, and corn oil, such as corn oil produced at an ethanol production plant.

Abstract: A composition comprising an oil selected from the group consisting of vegetable oils, animal oils, and krill oil in an amount sufficient to lower the peroxide index of the composition. The composition may preferably comprise a fish oil also having astaxanthin added thereto.

Abstract: A method for isolating chlorophylls from intact algal cells is provided. The method includes dewatering intact algal cells from an algal cell culture to make an algal biomass, extracting lipids along with carotenoids and chlorophylls from the algal biomass, and separation of the chlorophylls using adsorption or membrane diafiltration or other methods. The method can include selective extraction of other algal components including polar lipids, neutral lipids, proteins, and carbohydrates. The method may include esterifying the lipids with a catalyst in the presence of an alcohol, and separating a water soluble fraction comprising glycerin from a water insoluble fraction comprising fuel esters and distilling the fuel esters under vacuum to obtain a C16 or shorter fuel esters fraction, a C16 or longer fuel ester fraction, and a residue comprising omega-3 fatty acids esters and remaining carotenoids.

Abstract: The invention relates to a method for the recovery of oil from an aqueous solution containing oil and solids, as well as to the use of products obtained by this method. The method of the invention comprises at least the following steps of: Adjusting the oil- and solids-containing aqueous solution to a pH which is acidic, separating an oil- and solids-containing fraction from the acidic aqueous solution with an separation agent which is hydrophilic or assumes a hydrophilic character in response to water, recovering the oil- and solids-containing fraction separated by means of said separation agent, extracting oil away from the solids with a water-insoluble extraction agent, and recovering the oil-containing water-insoluble extraction agent.

Abstract: The present invention relates to a continuous process for isolation of oils from a micro organism slurry or an algae slurry comprising feeding the slurry into a three phase centrifugal separator having a stack of separating discs and operating under force of at least 4500 G, preferably under a force of at least 5000 G, obtaining three phases: one oil phase, one liquid phase and one bio-organic phase. The present invention relates also to use of the process for production of bio-diesel or bio-fuels.

Abstract: Fat-containing compositions comprise a fat component having less than 40% by weight of trans fat and a cyclodextrin, wherein at least about 25% of the cyclodextrin in the composition is bound to the fat. The fat compositions as provided herein can be substantially more viscous or harder than a like fat composition that does not contain cyclodextrin that is bound to the fat. Food products and methods of use of food products are described.

Abstract: The present invention relates to a concentration- and purification method for compositions containing phytanic acid and/or derivatives thereof besides other fatty acids and/or their derivatives, preferably besides polyunsaturated fatty acids and/or their derivatives, such as esters or salts. With the fractionation process the phytanic acid (derivative) can become concentrated and the fatty acid mixture, preferably PUFA-mixture, can be purified from this particular component.

Abstract: Fat-containing compositions comprise a fat component having less than 40% by weight of trans fat and a cyclodextrin, wherein at least about 25% of the cyclodextrin in the composition is bound to the fat. The fat compositions as provided herein can be substantially more viscous or harder than a like fat composition that does not contain cyclodextrin that is bound to the fat. Food products and methods of use of food products are described. Methods of making these compositions are also provided.

Abstract: The present invention relates to a cost effective and industrially useful process for the preparation of substantially pure acitretin. More specifically, the present invention relates to the preparation of acitretin of high purity and yield.

Abstract: The present invention relates to improved methods for refining vegetable oils. Vegetable oil is combined with organic acid and subjected to high shear to finely disperse the acid solution in the oil. The resulting acid-and-oil mixture is mixed at low shear for a time sufficient to sequester contaminants into a hydrated impurities phase, producing a purified vegetable oil phase.

Abstract: This invention relates to improved methods for treating phosphatide-containing mixtures. More particularly, this invention relates to methods for recovering purified vegetable oil, aqueous organic acid, and organic acid-treated phosphatide from a phosphatide-containing mixture comprising an acid-and-oil mixture obtained from organic acid refining of vegetable oil.

Abstract: This invention relates to improved methods for recovering fatty acids during purification of vegetable oil. More particularly, this invention relates to improved methods for recovering fatty acids from a phosphatide-containing material obtained from organic acid refining of vegetable oil.

Abstract: Methods for acidification of soapstock and recovery of acidulated fatty acids are disclosed. Further methods of conversion of the acidulated fatty acids to esters are also disclosed. Further methods of crystallizing the acidulated fatty acids from the extraction solvent at low temperatures and fractionating the acidulated fatty acids from the extraction solvent using urea are also disclosed. The novel method of adding both a monohydric alcohol to the soapstock to lower viscosity and a strong acid to hydrolyse the soaps prevents the formation of emulsions of soaps and oils. The preferred embodiment uses a soapstock such as soybean soapstock, sulphuric acid and isopropanol. The novel process allows the quantitative recovery of fatty acids and glyceride from the soapstock by removal of the alcohol by evaporation. Alternatively the fatty acids and glyceride may be converted to esters of monohydric alcohols.

Abstract: Dry fractionation process where a fat soluble derivative of a high molecular weight polymer, preferably an ester of a polysaccharide is used as crystal habit modifier.

Abstract: Process for refining a triglyceride oil comprising stripping a triglyceride oil with an inert gas, characterized in that the refining process further comprises the preceding exposure of the triglyceride oil to an aqueous solution of ascorbic acid. Hydroperoxides are destroyed at a temperature <120.degree. C. and within one hour.

Abstract: 9,11- Diene C18 fatty acid cannot be separated from 10,12-Diene C18 fatty acid by conventional rectification because of the proximity of their boiling points. 9,11-Diene C18 fatty acid can be readily separated from 10,12-Diene fatty acid by azeotropic distillation. Effective agents are propyl formate, butyl ether, methyl pivalate and cyclopentanone.

Abstract: A process is disclosed for stabilizing and dispersing vegetable oils which contain polyunsaturated fatty acid radicals by means of .gamma.-cyclodextrin, as well as the thus obtained complexes and their use. In this process for stabilizing vegetable oils having a high proportion of triacylglycerines and containing polyunsaturated fatty acids, cyclodextrin is mixed with vegetable oil and so a cyclodextrin/vegetable oil complex is formed. This process is characterized in that .gamma.-cyclodextrin is used to form complexes with vegetable oils.

Abstract: Olive oil with a high polyphenols content and a low bitterness is obtained by exposing olive oil to an emulsified water phase which exhibits enzymatic debittering activity and/or by emulsifying with a water phase with a high polyphenols content and evaporating the water phase.

Abstract: A process for purifying an inert gas stream from a transesterification reaction wherein a lower alkyl alcohol is released during the reaction is claimed. A second use of the process is to make a lower alkyl, e.g., methyl, esters of fatty acids through a transesterification reaction using gaseous alcohols as a source of the lower alkyl alcohols. The alcohol is diluted with nitrogen or other inert gas carrier and reacted with a fatty acid ester, preferably a triglyceride, to form the corresponding methyl or lower alkyl fatty acid ester.

Abstract: A triglyceride oil containing a membrane lipid in a concentration effective for crystallization modification the membrane lipid having a formula:C.sub.13 H.sub.27 --CH.dbd.CH--CH(OH)--CH(NHCOA.sub.2)--CH2--OA.sub.4,wherein C.sub.13 H.sub.27 -- is an unbranched alkyl chain, A.sub.2 is an unbranched C.sub.23 H.sub.47 -- hydrocarbon chain, and A.sub.4 is a sugar moiety selected from the group consisting o a monosaccharide residue, a disaccharide residue or an oligosaccharide residue, including glucose, fructose, galactose, saccharose, lactose and maltose. Said membrane is utilized to separate solid fatty materials from triglyceride oils by heating the oil in an inert solvent until a substantial amount of the solid material is no longer present, adding the membrane lipid as the crystallization modifying substance, cooling the oil to crystallize a solid stearin phase in combination with a liquid olein phase, and recovering the stearin phase by separating it from the olein phase.

Abstract: A method for extracting minor fatty compounds, particularly steroids, from biological matter by means of cyclodextrin. According to the method, the cyclodextrin is stirred into said biological matter in a water-containing reaction medium to allow the formation of inclusion complexes between the cyclodextrin and the minor fatty compounds, whereafter said complexes are separated from said matter, the amount of water present in the reaction medium being lower than 100 % wt. in relation to the matter to be treated. The temperature of the reaction medium and the amount of water present therein are such that the cyclodextrin is partially undissolved.

Abstract: The present invention relates to a process for the removal of cholesterol from a processed food or unprocessed food (dairy) product, which process comprises: (a) obtaining a processed or unprocessed food product containing cholesterol; (b) contacting the food product at a temperature of between about 35.degree. and 80.degree. C. with an amount of saponin effective to bind up to about 90% or more of the cholesterol present in the dairy product; (c) contacting at a temperature of between about 35.degree. and 80.degree. C. the product of (b) with an effective amount of diatomaceous earth; d) separating the insoluble diatomaceous earth containing the cholesterol:saponin complex by decanting, filtration, or centrifugation; and (e) recovering the food product having a reduced content of cholesterol.

Abstract: Process of refining mixtures obtained from treatments of fatty media with cyclodextrin and containing complexes of cyclodextrin with lipophilic compounds of the fatty acid type, characterised by the fact that the said mixtures are subjected to a heat treatment at a temperature above 100.degree. C. in the presence of a solvent system containing water, that the various fractions or raffinates obtained from the heat treatment are separated and that these raffinates are recovered.

Abstract: Process of refining mixtures obtained from treatments of fatty media with cyclodextrin and containing complexes of cyclodextrin substantially with lipophilic substances other than fatty acids, characterized in that the said mixture is successively subjected to a heat treatment in the presence of a solvent system containing water, the mixture thus treated is separated into different raffinates and the raffinates are recovered.

Abstract: The present invention pertains to a process for refining soap-containing crude polyol fatty-acid polyester reaction product, comprising the step of contacting the crude reaction product with an aqueous acid solution to substantially convert the soap into its corresponding free fatty acids, the subsequent step of drying said crude reaction product to substantially remove any free-water therein, and the step of substantially removing from the dried crude reaction product any salts therein.

Abstract: Process for reducing the content of cholesterol and of free fatty acids of an animal fat material, consisting of placing the fat in contact with cyclodextrin, under stirring and in the presence of water, the ratio by weight water/fat, the temperature and the stirring being regulated so that a fine emulsion of the "oil in water" type is formed, and separating the cyclodextrin-cholesterol and cyclodextrin-free fatty acid complexes so formed.

Abstract: A process for refining vegetable oil from a miscella obtained by extraction of vegetable seeds with an organic solvent, which comprises permeating the miscella through an ultrafilter made of an inorganic microporous membrane having a pore size of from 30 to 100 .ANG. in a state heated at a temperature of from 50.degree. to 120.degree. C. to remove impurities contained in the miscella.