A system for treating whole stillage includes a stillage tank, a separation system in communication with the stillage tank and configured to separate the whole stillage into a wet cake portion and a thin stillage portion, and a primary filtration system in communication with the separation system. The primary filtration system can be configured to separate the thin stillage into a primary concentrate and a primary permeate. A secondary filtration system in communication with the primary filtration system can be configured to further purify the primary permeate. A water reclamation system in communication with the primary and/or secondary filtration system can remove water from the permeate. An additive can be added to the primary permeate to precipitate phosphorus-containing minerals and corn oil can be advantageously extracted from the primary concentrate. Protein-enriched animal feeds can be generated from dehydration of the primary concentrate.

A method for treating a lipid material containing phosphorous and/or metal compounds is described. The method includes providing the lipid material, preheating the lipid material, to obtain a preheated lipid material, heat treating the preheated lipid material in a heat treatment step, to obtain a heat treated lipid material, and optionally post treating the heat treated lipid material in a post treatment step.

The present invention relates to refining of vegetable oil. The invention provides processes in which phospholipids present in the vegetable oil are hydrolyzed and the oil is subsequently subject to chemical refining.

Provided are methods and systems for recovering protein product powder, purified water and omega-3 oil from an animal tissue. The methods and systems use high throughput extraction filtration separation systems. Animal tissue, for example fish, and organic solvent are directly or indirectly transferred into one of the optional extraction or filtration systems. The extraction-filtration systems provide a high degree of filtration performance and product washing efficiency. Each system ultimately yields a product wet cake that includes the protein product. The protein product wet cake is then further dried in a drying unit to yield the final protein powder product. In each system, the process filtrates undergo further processing by filtration and distillation to recover the organic solvent and separate out the omega-3 fish oil. The recovered organic solvent can be recycled back into the process. Solid protein product powder is thus recovered, along with omega-3 oil, purified water and recovered solvent.

A method is provided for preventing or reducing the formation of monochloropropanediols (MCPDs) or monochloropropanediol esters (MCPDEs) in triacylglyceride oil, comprising the steps: (a) admixing the triacylglyceride oil with (1) an auxiliary oil wherein the auxiliary triacylglyceride oil has higher phospholipid and/or wax content than the triacylglyceride oil; and/or (2) the gum extract from an oil; (b) degumming the triacylglyceride oil admixture and/or optionally allowing the insoluble components to crystallize; (c) optionally concentrating the insoluble and crystallized components from the triacylglyceride oil admixture (1) by applying a centrifugational force on the triacylglyceride oil admix and/or (2) by allowing the insoluble and crystallized components to settle by gravity; (d) separating insoluble and crystallized components from the triacylglyceride oil admixture and/or optionally applying one or more processes selected from degumming, physical refining, chemical refining, neutralization, interesterification, bleaching, dewaxing and fractionation; (e) applying heat treatment to the triacylglyceride oil admixture.

The present invention relates to a method for reducing an amount of dissolved impurities in an oxygen containing renewable feedstock, the dissolved impurities being selected from impurities comprising phosphorus and impurities comprising at least one metal. The method comprises obtaining a net elementary charge of a first feedstock; mixing the first feedstock with an elementary charge balancing component to obtain the feedstock to be treated, whereby the feedstock to be treated has a net elementary charge which is closer to zero net elementary charge than the net elementary charge of the first feedstock; and subjecting the feedstock to be treated to a heat treatment at a temperature of 180-400 C. in order to precipitate compounds containing said phosphorus and said at least one metal.

The present technology provides a method that includes contacting a composition with a caustic solution to produce a caustic-treated composition; combining the caustic-treated composition with silica particles to produce a slurry; and removing the silica particles from the slurry to produce a treated composition; wherein the composition includes one or more of animal fats, animal oils, plant fats, plant oils, vegetable fats, vegetable oils, greases, and used cooking oil and the composition includes: at least about 10 wppm of total metals, at least about 8 wppm of phosphorus, at least about 10 wppm of chlorine, at least about 10 wppm of sulfur, at least about 20 wppm of nitrogen, at least about 5 wt. % of free fatty acids; and has an acid number from about 10 mg KOH/g to about 150 mg KOH/g, and the silica particles has a particle size from about 10 microns to about 50 microns, a BET surface area from about 200 m.sup.2/g to about 1000 m.sup.2/g.

Embodiments described herein provide a method, comprising routing a bio-oil to a mixing device; routing a wash material to the mixing device; using the mixing device to form a mixture from the bio-oil and the wash material; routing the mixture to an electrostatic separator; and applying an electric field to the mixture, in the electrostatic separator, to separate the wash material from the bio-oil.

Carbon-doped layers and methods of making and using same. In various examples, a carbon-doped layer is porous. In various examples, a carbon-doped layer is a carbon-doped metal oxide and/or metal layer. In various examples, a carbon-doped layer is disposed on at least a portion of substrate. In various examples, a method of making carbon-doped layer(s) comprises contacting a substrate with liquid carbon precursor(s) and optionally, water, and contacting the substrate with liquid precursor(s) and optionally, water with one or more vapor-phase metal and/or metal oxide precursor(s), where the carbon-doped layer(s) is/are formed. In various examples, a method further comprises the carbon-doped layer(s), where porous carbon-doped layer(s) is/are formed. In various examples, a filtration substrate comprises one or more porous carbon-doped layer(s). In various examples, a filtration substrate is used in a separation method or the like. In various examples, the method is an organic solvent nanofiltration (OSN) or the like.

The present invention relates to a method of reducing the phospholipid content in an oil or fat composition and polypeptides having PI-specific phospholipase C activity as well as polypeptides having PC, PE-specific phospholipase C activity and combinations thereof capable of catalyzing this reduction. The invention also relates to polynucleotides encoding the polypeptides, nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.