The use of ultrasound or acoustics applied at a level below that which causes cavitation to control the energy balance between particles and the liquid phase in a metastable liquid.

Provided herein are methods for winterizing oil. The methods include heating the oil to a first temperature and maintaining the oil at the first temperature for a first period of time; reducing the first temperature of the oil after the first period of time to a second temperature over a second period of time, wherein reducing the first temperature produces a first solid fraction and first liquid fraction of the oil; removing the first solid fraction from the oil; reducing the second temperature of the first liquid fraction of the oil over a third period of time to a third temperature, wherein reducing the second temperature of the oil produces a second solid fraction and second liquid fraction of the oil; removing the second solid fraction from the oil; and recovering the second liquid fraction of the oil.

Provided is a production method which can produce, with a high yield, a fat or oil composition containing a diacylglycerol at a high content and having a favorable external appearance at room temperature. Specifically, provided is a production method for a refined fat or oil composition, comprising the following steps (1) and (2): (1) a step of adding a polyglycerin fatty acid ester having an average polymerization degree of glycerin being 20 or more to a fat or oil composition containing 50 mass % or more of diacylglycerol, followed by cooling; and (2) a step of separating a crystal precipitated in the step (1) from a liquid portion.

A process for producing crude biodiesel from renewable feedstocks (such as fats, oils, and greases) containing unsaponifiable materials; purifying the crude biodiesel through a purification process; recovering a purified biodiesel distillate stream and a less volatile biodiesel residue stream; and further recovering valuable chemicals from the biodiesel residue. Specifically, the present technology relates to the concentration of valuable chemicals in the biodiesel residue product of biodiesel production and the subsequent recovery of these valuable chemicals. The process may further include the conversion of the biodiesel residue into diesel range hydrocarbons using hydrodeoxygenation and the subsequent purification of the hydrocarbon fraction produced thereby.

Disclosed are methods and systems for recovering oil from processed plant materials and by-products formed during a milling process used for producing ethanol.

The present invention provides a fatty acid mixture enriched with palmitoleic acid and palmitoleic acid derivatives relative to the starting lipid mixture; fractionations procedure describe herein are winterization methods. The invention provides methods of dry winterization and solvent-aided winterization alone and in combination. In some embodiments, the palmitoleic acid and palmitoleic acid derivative enriched mixture described herein contains less than 1% of palmitic acid and palmitic acid derivative. The invention also provides palmitoleic derivatives of use as dietary supplements.

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.

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.

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 grain oil derived from a fermentation product in an anti-foam composition and/or feedstock to make diesel.

Present invention relates to a palm oil separation process comprising the following steps: step a) subjecting a palm oil starting material to short-path evaporation to obtain a distillate and a palm retentate: and step b) subjecting the palm retentateobtained in step a) to a dry fractionation step to obtain a stearin fraction and an olein fraction. Present invention further relates a soft palm mid fraction or a hard palm mid fraction obtainable by the process according to the invention and to a fat composition comprising the hard palm mid fraction and a StOSt-rich fat. In addition, the invention relates to a confectionary product such as chocolate, a chocolate-like product, cocoa-based fillings and cocoa-based coatings. The invention also relates to the use of the fat composition as a cocoa butter equivalent. The aim of the invention is to increase the yield and purify of the stearin and olein fractions obtained.