The present disclosure relates methods and systems for refining grain oil compositions using water, and related compositions produced therefrom. The present disclosure also relates to methods of using said compositions. The present disclosure also relates to methods of using grain oil derived from a fermentation product in an anti-foam composition.

The invention relates to a method for the purification of crude rice bran wax using an alcohol as a purifying solvent under high pressure conditions. It particularly relates to the use of ethyl alcohol as said solvent for efficient and economic purification of crude rice bran wax into economically valuable high purity wax products.

A method for extracting naturally occurring oil bodies (oleosomes) from a material containing naturally occurring oil bodies (oleosomes) includes the steps of dispersing the material containing oleosomes in an aqueous composition to thereby obtain an aqueous dispersion of material containing oleosomes, extracting oleosomes from the aqueous dispersion of material containing oleosomes to thereby obtain a crude oleosome extract and isolating crude oleosomes from the extract by drying the crude oleosome extract. The dried oleosome powder may be used with a personal care product, a pharmaceutical product or a food product.

A method of purifying biomass-based lipid material, as disclosed includes providing a feed of biomass-based lipid material; optionally drying the feed; removing oxygen from the feed under reduced pressure; heat treating the feed at 180 to 300 C. under reduced pressure to solidify at least part of phosphorous and/or metal containing impurities, simultaneously distilling off at least part of free fatty acids and low molecular weight nitrogen compounds, to obtain at least a fraction containing free fatty acids and low molecular weight nitrogen compounds, and heat treated biomass-based lipid material containing degraded phosphorous and/or metal containing impurities in solid form; and removing the solid degraded phosphorous and/or metal containing impurities from the second fraction.

The present invention provides a composition based on a starch powder (such as flour), wheat germ, SiO.sub.2, MgO, Al.sub.2O.sub.3, Fe.sub.2O.sub.3, and K.sub.2O. This composition is extremely useful in treating acid related disorders and reducing the acidity, removing water, deodorizing, from plant oil and extending the oils shelf life of 3-5 years instead of the average one-year available.

A system and method for the separation of nut or seed oil from shelled nuts or seeds are disclosed. The method comprises the grinding of shelled nuts or seeds and at least one carbohydrate for a length of time sufficient to promote nut or seed oil separation, leaving behind defatted nut or seed dough that can be further processed into a food product such as snack bar or nut milk. A system for the separation of nut or seed oil from shelled nuts or seeds comprises sources for both shelled nuts or seeds and at least one carbohydrate, and a grinding unit comprising at least one movable member, optional stationary member, and a vessel.

A method for preparing field muskmelon oil includes the following steps: S1, removing foreign matter, including: removing the foreign matter in field muskmelon seeds; S2, low-temperature pressing, including: performing the low-temperature pressing on the field muskmelon seeds after removing the foreign matter in step S1 to obtain an oil residue mixture; S3, filtering and removing impurities: filtering the oil residue mixture obtained by the low-temperature pressing in step S2 to remove the impurities to obtain a primary oil; and S4, centrifugal separation, including: centrifugally separating the primary oil obtained by filtering and removing impurities in step S3 to obtain the field muskmelon oil. The new method avoids using high-temperatures resulting in optimal yield of nutritional content and no harmful byproducts.

A method of recovering one or more insoluble oils from a liquid source using one or more membrane or membrane contactors, comprising the steps of: pumping the liquid source comprising the one or more oils to the membranes or membrane contactors, contacting the liquid source with a first surface of the membrane or membrane contactors, coalescing the one or more oils within the liquid source onto the first surface of the membrane contactors, pumping one or more recovery fluids through the membrane or membrane contactors in contact with the second surface of the membrane or membrane contactors, and removing a first stream of oil coalesced from the second surface of the membranes or membrane contactors.

A membrane based separation method is for the separation or enrichment of one or more unsaturated compounds from mixtures of chemically similar organic compounds having a different degree of unsaturation, using a membrane, such as an inorganic membrane, functionalized with a metal, such as silver. An inorganic membrane, preferably modified or grafted with an organic functional group, is further functionalized with a metal, such as silver, for use in the membrane based separation methods.

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.