Disclosed herein are rejuvenating compositions for asphalt applications. In one aspect, the rejuvenating composition comprises a polymerized oil having a polymeric distribution ranging from about 2 to about 80 wt % oligomer content and Hildebrand solubility ranging from about 6 to about 12. In another aspect, the rejuvenating composition comprises an oil having a Hildebrand solubility ranging from about 6 to about 12 and a flash point ranging from about 100 C. to about 400 C. In yet another aspect, the rejuvenating composition comprises a modified oil having a Hildebrand solubility ranging from about 6 to about 12 and a flash point ranging from about 100 C. to about 400 C.

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 and system for the treatment of a biomass stream to separate organic extracts/biomolecules (such as proteins, lipids and/or carotenoids) from the biomass stream, wherein the water content of the biomass stream is decreased by bringing the biomass stream into contact with a compressed liquefied gas solvent, to create a low-water content biomass stream and introducing the low-water content biomass stream to an extraction apparatus that recovers one or more organic products with little or no measurable solvent residue.

A chemical additive for reclaiming oil from a fluid product stream is described. In embodiments, chemical additive compositions comprise a propylene glycol ester, a hydrophobic silica, a polyglycol ester or a polyglycerol oleate ester, a polyethoxylate sorbitan or sorbitan ester and a block copolymer or ethylene oxide-propylene oxide polymer. Less chemical additive is needed for improved oil extraction and concentration and a shorter incubation time is required, which reduces cycle time and energy consumption.

Provided herein are methods of optimizing energy recovery from oilseeds. The methods disclosed provide at least the ability to swell oilseeds and disrupt the cell walls (hulls) without changing the functionality and quality of oil; the process integration of removing the impurities from oilseeds, oil extraction, protein hydrolysis, and green coal production to maximize the energy recovery in the form of crude oil, polypeptides, oligopeptides, amino acids, and/or green coal from oilseeds; and heat integration during processing stages including subcritical water pretreatment, oil extraction, subcritical water post-treatment, and subcritical water carbonization to minimize the process heat requirement.

Provided herein are methods of optimizing energy recovery from oilseeds. The methods disclosed provide at least the ability to swell oilseeds and disrupt the cell walls (hulls) without changing the functionality and quality of oil; the process integration of removing the impurities from oilseeds, oil extraction, protein hydrolysis, and green coal production to maximize the energy recovery in the form of crude oil, polypeptides, oligopeptides, amino acids, and/or green coal from oilseeds; and heat integration during processing stages including subcritical water pretreatment, oil extraction, subcritical water post-treatment, and subcritical water carbonization to minimize the process heat requirement.

A method for extracting lipid from wet biomass includes a step in which a wet biomass and a first solvent are mixed to prepare a mixture. The method continues with a step in which said mixture is separated to obtain a solution containing said first solvent and a concentrated biomass. The method continues with a step in which a liquefied gas is added into said concentrated biomass subjected to mechanical dispersion means to obtain lipid.

The invention provides methods for obtaining lipid compositions comprising phospholipids having a high docosahexaenoic acid (DHA) content, which compositions are preferably extracted from natural sources such as fish roe. The lipid compositions are excellent sources of highly bioavailable DHA and they can be used in oral delivery vehicles, dietary supplements, functional foods, and the like.

Methods and systems for recovering a desired co-product from a feedstock to ethanol production process are provided. The methods involve a multi-step separation of a fermentation-derived feedstock, in which an initial separation produces a discharge stream and an output feed stream including the co-product, and a final separation further purifies the output feed stream while also producing a recycle stream that is reintroduced into the separation process. The systems include at least an initial and at least a final separation device which are in fluid communication in both upstream and downstream directions. The initial separation device separates at least a portion of a non-co-product containing phase from a feed stream comprising the non-co-product containing phase and a co-product containing phase, and the final separation device separates at least a portion of the co-product containing phase from a stream comprising the co-product containing phase and a non-co-product containing phase.

An object of the present invention is to provide a method in which a fat and/or oil is produced by a transesterification reaction using a lipase. Specifically, the present invention relates to a method for producing a transesterified fat and/or oil, comprising: (1) a low-temperature clay treatment step of bringing a fat and/or oil and a clay into contact with each other at 30 to 80? C. to obtain a reaction substrate; and (2) a step of subjecting the reaction substrate to a transesterification reaction in the presence of a lipase-containing composition.