Yissum Research Development Company of the Hebrew University of Jerusalem Ltd.

Cargill Inc.

Virdia, Inc.

Other

Innovasa Corporation

Clue

Aharon Meir Eyal

Asher Vitner

Patrick R Gruber

Robert P Jansen

Avraham M Baniel

Betty Hazan

Revital Mali

Tal Reuveni

David Roy Witzke

Rod R Fisher

Paul McWilliams

Jeffrey John Kolstad

Shlomo Magdassi

Avraham Baniel

Sergei Braun

Ponnampalam Elankovan

Francoise Appelbaum

David Witzke

Sofia Kotlyar

Larry G Pillard

Nadjda Cohen-Sydov

A sugar mixture comprising: monosaccharides; oligosaccharides in a ratio&#x2265;0.06 to total saccharides; disaccharides in a ratio to total saccharides&#x2265;0.05; pentose in a ratio to total saccharides&#x2265;0.05; at least one alpha-bonded di-glucose; and at least one beta-bonded di-glucose. Also disclosed are methods to make and/or use such mixtures.

Sugar mixtures and methods for production and use thereof

A sugar mixture comprising: monosaccharides; oligosaccharides in a ratio &#x2265;0.06 to total saccharides; disaccharides in a ratio to total saccharides &#x2265;0.05; pentose in a ratio to total saccharides &#x2265;0.05; at least one alpha-bonded di-glucose; and at least one beta-bonded di-glucose. Also disclosed are methods to make and/or use such mixtures.

A sugar mixture comprising: monosaccharides; oligosaccharides in a ratio &#x2267;0.06 to total saccharides; disaccharides in a ratio to total saccharides &#x2267;0.05; pentose in a ratio to total saccharides &#x2267;0.05; at least one alpha-bonded di-glucose; and at least one beta-bonded di-glucose. Also disclosed are methods to make and/or use such mixtures.

The invention provides a process for the recovery of lactic acid from aqueous solutions containing at least one water-soluble lactate salt and having a pH of about between 4 and 14, comprising the steps of: contacting said aqueous solution with a cation exchanger which is at least partially in its acid form, said cation exchanger being water immiscible in both acid and salt form, whereby ion exchange is effected, protons are transferred from the cation exchanger to the aqueous solution to acidulate it and to form lactic acid therein and cations from the aqueous solution are bound by the cation exchanger; reacting the cations carrying cation exchanger to convert it into a cation exchanger which is at least partially in its acid form and to a second product, which second product is basic and comprises the cation of the salt; and recovering lactic acid from the lactic acid-containing acidulated aqueous solution by methods known per se.

Process for the recovery of lactic acid from aqueous lactate salt solutions, involving the use of ion exchangers

The invention provides a process for the recovery of lactic acid and products thereof from an aqueous solution containing free lactic acid and at least one lactate salt at a total concentration of at least 5%, the process comprising the steps of: extracting at least 70% of the free lactic acid from the aqueous solution by contacting the solution with a basic extractant, to form a lactic acid-containing extract and a lactic acid-depleted, lactate salt-containing aqueous solution; separating the lactic acid-containing extract from the depleted aqueous solution; and stripping the extracted lactic acid from the extract by methods known per se, to form a solution of lactic acid and a stripped extractant.

Process for the recovery of lactic acid by contacting aqueous solutions containing the same with a basic organic extractant

The invention provides a process for producing lactic acid from a medium containing an alkaline earth-metal salt of lactic acid, comprising (a) reacting a conjugated base of an alkali metal from a subsequent step with the medium to form a water soluble alkali metal lactate salt and a basic compound of the alkaline earth metal; (b) separating the water soluble alkali metal lactate salt and the basic compound of the alkaline earth-metal; (c) splitting the water soluble alkali metal lactate to form a conjugated alkali metal base and a lactic acid product, which product is selected from the group consisting of lactic acid; and (d) separating the conjugated alkali metal base and the lactic acid product; (e) reusing the separated conjugated alkali metal base or the product in the step (a); and (f) reusing the basic compound of the alkaline earth metal, separated in step (b) to form an alkaline earth metal salt of lactic acid.

Process for the recovery of lactic acid

A method for the combined production of (I) a fertilizer selected from a group consisting of ammonium nitrate, ammonium phosphates or a combination thereof through an indirect neutralization of ammonia with an acid selected form a group consisting of nitric acid, phosphoric acid and a combination thereof and of (II) a sulfur compound selected from a group consisting of elemental sulfur, SO , sulfuric acid and sulfate salts, said method comprising (a) contacting a sulfur oxide containing gas with ammonia and an aqueous liquor, whereby a sulfur oxide containing product is formed and the resulting gas has a reduced SO content; (b) reacting a sulfur oxide containing product resulting from step (a) with a reagent selected from a group consisting of nitric acid, phosphoric acid, a mixture thereof and salts formed by the reaction of said acids to form said fertilizer and a sulfur compund, and (c) separating at least a portion said sulfur compound from said fertilizer.

Process for the preparation of fertilizers and sulfur compounds

The invention provides a process for the preparation of long-chain alkyl glycosides, comprising reacting at least one substrate selected from a group consisting a carbohydrates and carbohydrates sources and at least one fatty alkanol of at least eight carbon atoms in a medium consisting of at least one glycosidase enzyme having a temperature optimum greater than 60&deg; C. and having thermal stability half-life of greater than 24 hours at 80&deg; C.

Process for the preparation of long-chain alkylglycosides

The invention provides a process for the recovery of erythorbic acid from an aqueous feed solution containing values of erythorbic acid at a concentration of less than 0.7 mol/kg, comprising extracting said erythorbic acid with a water-immiscible organic extractant composition comprising at least one secondary or tertiary alkyl amine in which the aggregate number of carbon atoms is at least 20, as a primary extractant, and a polar extraction enhancer compound; wherein said extractant composition comprises at least 2 moles of said polar extraction enhancer compound per one mole of primary extractant; separating said erythorbic acid-containing organic extractant composition from residual aqueous solution, and subjecting said erythorbic acid-containing organic extractant composition to a stripping operation with aqueous solution at a temperature of at least 20&deg; C. higher than the temperature at which said extraction is carried out; whereby there is obtained an aqueous solution of erythorbic acid in which the concentration of erythorbic acid is higher than its concentration in said aqueous feed solution.

Process for the production of erythorbic acid

The invention provides a process for the separation of amino acids and their salts from impurities contained in an aqueous feed solution containing the same, the process comprising: a) bringing the feed solution into contact with a substantially immiscible extractant phase comprising an amine and an acid, both of which are substantially water immiscible in both free and salt forms, to extract amino acid and salts thereof in the phase, wherein the extraction is carried out while the feed solution is within two pH units of the initial pH of the feed solution; and b) backwashing the extractant phase with a substantially neutral aqueous system to recover substantially all of the extracted amino acid and the extracted salts thereof.

Process for the separation of amino acids and their salts from an aqueous solution

The invention provides a process for the recovery of ascorbic acid from a feed containing at least one precursor of ascorbic acid comprising converting the precursor into at least one product, the at least one product being ascorbic acid in an organic extractant composition, the organic extractant composition comprising at least one secondary or tertiary alkyl amine in which the aggregate number of carbon atoms is at least 20, as a primary extractant, and a polar extraction enhancer compound; wherein the extractant composition comprises at least 2 moles of the polar extraction enhancer compound per one mole of primary extractant; and subjecting the ascorbic acid-containing organic extractant composition to a stripping operation with aqueous solution at a temperature of at least 20&deg; C. higher than the temperature at which the conversion is carried out; whereby there is obtained an aqueous solution of ascorbic acid in which the concentration of ascorbic acid is higher than 5%.

Process for recovery of ascorbic acid

Process for the recovery of lactic acid esters and amides from aqueous

Process and compositions for the recovery of ascorbic acid

The invention provides a process for the preparation of long-chain alkyl glycosides, comprising reacting a glucose-containing reactant and a C.sub.8 -C.sub.18 fatty alcohol in the presence of a glucosidase and a reaction promoter effective to promote the formation of the alkyl glycoside when the promoter is present in an amount of less than about 50 wt % of the total reaction mixture.

Growing community of inventors

Jerusalem, Israel

Aharon Meir Eyal