The present invention relates to the isolation and purification of sialylated oligosaccharides from an aqueous medium in which they are produced.

A liquid purification system includes a system raw liquid feed unit and a filtration unit, which includes a liquid concentration device having an internal partition dividing a variable volume collection cavity for raw liquid coming from an initial stage of liquid filtration and for mixing therein concentrate and a raw liquid displacement cavity. The cavity is connected to a secondary line that supplies raw liquid to the cavity to displace concentrate from the collection cavity and to recycle raw liquid from the displacement cavity through the secondary line under pressure exerted by concentrate and raw liquid in the collection cavity. A filtration unit provides long-term contact between raw liquid and concentrate in the variable-volume collection cavity to provide smooth increase in the concentration of liquid supplied to a liquid purification device.

A pure water production method for producing pure water by decarboxylating water to be treated under acidic conditions and then deionizing the result by using a reverse osmosis membrane separation device, the pH of inflow water flowing into the reverse osmosis membrane separation device and the water quality of permeated water of the reverse osmosis membrane separation device being measured, and the pH of the inflow water being adjusted on the basis of the measured pH and water quality so that the water quality of the permeated water is within a prescribed range, wherein the pH of the inflow water is changed by a predetermined width, and an operation condition adjusting step is performed for adjusting the pH of the inflow water by comparing the(average value before the water quality change average value after the water quality change.

A new and innovative power and treated water co-generation system is provided that includes a modified Kalina cycle and a forward osmosis (FO) membrane. The Kalina cycle of the provided system is used for power production, whereas the system's FO process is used for water production. The provided system modifies a typical Kalina cycle to include a more efficient and relatively low-temperature heat source, while still utilizing the same working fluid, which is ammonia-water. The draw solution for the provided system's FO process is also ammonia-water, which is known and efficient for desalination and wastewater treatment. In some aspects, the working fluid of the system may be a specific ammonia-water composition including between 30-95% ammonia. The presently disclosed system combines the Kalina process and the FO process into an improved and innovative heat integration system to minimize energy requirements and enable operation at both small and large scales.

The present invention relates to a hydrogen gas production method, which includes: a first step of concentrating an aqueous solution containing an alkali metal formate; a second step of protonating at least a part of the alkali metal formate by electrodialysis to produce a formic acid; and a third step of decomposing the formic acid to produce a hydrogen gas.

The present invention concerns a method for separation of (a) potato proteins and insoluble fibers from (b) first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice or a derivative thereof, said method comprising the steps of: (i) providing a potato fruit juice or a derivative thereof, comprising potato proteins; and insoluble fibers; and one or more first salts; and phenolic and/or glycoalkaloid compounds; (ii) subjecting the potato fruit juice or the derivative thereof to a first cross-flow membrane filtration process resulting in a first retentate and a first permeate; and (iii) adding aqueous diafiltration liquid containing one or more salts to the first retentate and performing a second cross-flow membrane filtration as diafiltration, to create a second permeate containing at least a portion of said phenolic and/or glycoalkaloid compounds and salts and a second retentate comprising potato proteins, salts and insoluble fibers.

The present invention further concerns a potato fruit juice product comprising potato protein and insoluble fibers, such as a potato fruit juice product obtainable by the method according to the invention.

Disclosed are plant protein compositions prepared from hemp plant material. Hemp seeds are deconstructed and separated into heavy protein-rich fractions and light oil-rich fractions. The deconstruction processes avoid the use of organic solvents and temperatures above 60° C. The separated fractions are then selectively processed to produce selected plant protein containing compositions comprising from about 30% (w/w) to about 95% hemp protein, from about 5% (w/w) and to about 60% (w/w) plant oil. The plant protein compositions from hemp plants are suitable for use as ingredients in nutritional formulations.

The present invention concerns a method for separation of (a) potato proteins and optionally insoluble fibers from (b) first salts and phenolic and/or glycoalkaloid compounds in potato fruit juice or a derivative thereof, said method comprising the steps of:

(i) providing a potato fruit juice or a derivative thereof;

(ii) subjecting said potato fruit juice or the derivative thereof to a first cross-flow membrane filtration process resulting in a first permeate and a first retentate;

(iii) adding aqueous diafiltration liquid containing one or more salts to the first retentate and performing a second cross-flow membrane filtration as diafiltration, to create a second permeate being a diafiltrate containing at least a portion of said phenolic and/or glycoalkaloid compounds and salts and a second retentate comprising potato proteins, salts and optionally insoluble fibers;

wherein the pH of the first retentate and the second retentate remains within the range of 4.5 to 8.5 during step (ii) and step (iii), said method further comprising a step of eliminating or reducing enzymatic activity.

A method of removing contaminants from an aqueous material, the method comprising the steps of: providing an aqueous material comprising one or more non-particulate contaminants; and filtering the aqueous material to remove at least part of the one or more non-particulate contaminants to form a recovered portion of the aqueous material in which the amount of contaminant is reduced to an amount allowing re-use of the recovered portion of the aqueous material, wherein filtering the aqueous material includes passing the aqueous material across a partially permeable membrane at a temperature higher than 50° C.

A device for obtaining protein-enriched fractions from human or animal milk comprises a delipidating unit for reducing a lipid content in the human or animal milk to obtain delipidated milk and a filtering unit for increasing a protein concentration of the delipidated milk to obtain the protein-enriched fraction, comprising a replaceable filter having a nominal molecular weight limit of 2 kDa or more, in particular of 5 kDa or more.