Processes for converting lignocellulose to feedstock and downstream products are disclosed. The processes may include acid treatment of lignocellulose to produce a fermentation feedstock. In various instances, the processes include recovery or recycling of acid, such as recovery of hydrochloric acid from concentrated and/or dilute streams. Downstream products may include acrylic acid-based products such as diapers, paper and paper-based products, ethanol, biofuels such as biodiesel and fuel additives, and detergents.

Processes for converting lignocellulose to feedstock and downstream products are disclosed. The processes may include acid treatment of lignocellulose to produce a fermentation feedstock. In various instances, the processes include recovery or recycling of acid, such as recovery of hydrochloric acid from concentrated and/or dilute streams. Downstream products may include acrylic acid-based products such as diapers, paper and paper-based products, ethanol, biofuels such as biodiesel and fuel additives, and detergents.

A method of crystallizing α-lactose monohydrate from an aqueous solution comprising dissolved α-lactose and β-lactose, said method comprising: circulating a first volume of said aqueous solution in a mutarotation loop in a mutarotation loop system (100); said mutarotation loop system comprising a crystallization tank (110) and a mutarotation tank (130).

Stevia compositions are prepared from Stevia rebaudiana Bertoni extracts. The compositions are able to provide a superior taste profile and can be used as sweeteners, sweetness enhancers, flavors, flavor enhancers in foods, beverages, cosmetics and pharmaceuticals.

Stevia compositions are prepared from Stevia rebaudiana Bertoni extracts. The compositions are able to provide a superior taste profile and can be used as sweeteners, sweetness enhancers, flavors, flavor enhancers in foods, beverages, cosmetics and pharmaceuticals.

Disclosed is a method of separating carbohydrate, including: mixing formic acid with heteropoly acid, chloride or bromide of lithium, magnesium, calcium, zinc, or iron, or combinations thereof to form a mixing liquid. The method also includes dissolving a cellulose biomass by the mixing liquid to form a solution, mixing water and the solution to hydrolyze the cellulose biomass for forming a carbohydrate solution, and mixing an extractant and the carbohydrate solution to extract the formic acid out of the carbohydrate solution. The heteropoly acid, the chloride or bromide of lithium, magnesium, calcium, zinc, or iron, or combinations thereof in the carbohydrate solution is separated out of the carbohydrate solution by ion exclusion chromatography separation to obtain a carbohydrate.

Compositions comprising C5 and C6 saccharides of varying degrees of polymerization and low levels of undesirable impurities, such as compounds containing sulfur, nitrogen, or metals, are disclosed.

Compositions comprising C5 and C6 saccharides of varying degrees of polymerization and low levels of undesirable impurities, such as compounds containing sulfur, nitrogen, or metals, are disclosed.

The invention relates to a method of separating and recovering xylose from a xylose-containing plant-based solution. The method is performed in a chromatographic separation system, which comprises one or more weak base anion exchange resins and optionally one or more other resins selected from strong acid cation exchange resins and weak acid cation exchange resins, by passing the solution through the separation system, followed by recovering at least one fraction enriched in xylose. Optionally, a rhamnose fraction may also be recovered.

The method for purifying oses from hemicellulose originating from lignocellulosic biomass includes eliminating the cellulose matrix and the solid residues and/or the suspended materials from the acid hydrolysate containing oses in order to obtain a clarified hydrolysate, and subjecting the clarified hydrolysate, without adding any basic chemical reagent to increase the pH to at least one step of ultrafiltration and/or to at least one step of nanofiltration, so as to obtain a filtrate containing the majority of the pentoses and a retentate containing the species likely to precipitate under the effect of an increase in the pH. The filtrate is treated by at least one step of electrodialysis so as to recover the acid catalyst from an acid-supplemented solution, and obtain a deacidified filtrate.