摘要:
Various methods of obtaining hemicellulose from plant sources are provided. In one embodiment, hemicellulose is obtained from plant hulls by first jet cooking a plant hull slurry to remove starch from the plant hulls, and subsequently jet cooking the destarched plant hull slurry to extract a solubilzed hemicellulose. In an alternative embodiment, hemicellulose may be obtained by forming a plant hull slurry, adding sufficient lime to enable starch gelatinization and separation of hemicellulose in a single jet cooking step, jet cooking the slurry, and separating solubilized hemicellulose from insolubles. Surprisingly, the yield of hemicellulose is high, and the starch from the plant hulls will gelatinize but will not become hydrolyzed, such that the formation of reducing sugars is substantially avoided.
摘要:
A method of hydrolyzing an organic compound (in particular, polysaccharides such as starch, guar gum, or cellulose), characterized in that the hydrothermal reaction is performed in hot water with a pressure of 5 to 100 MPa and a temperature of 140 to 300°C, containing carbon dioxide being added by pressure application.
摘要:
Use of an aqueous composition comprising at least one member selected from the group consisting of low DE starch hydrolysates having a DE less than about 25 and a polydispersity index of less than about 5, chemically derivatized low DE starch hydrolysates having a DE less than about 25 and a polydispersity index of less than about 5, and hydrogenated low DE starch hydrolysates having a DE less than about 25 and a polydispersity index of less than about 5, for the production of a solid shaped form selected from the group consisting of tablets, caplets, pills, capsules and lozenges or the production of a coated solid form.
摘要:
L'invention concerne un procédé de fabrication d'un hydrolysat d'amidon à bas DE, qui met en oeuvre le fractionnement d'un hydrolysat d'amidon comprenant un DE plus élevé qu'environ 18 en utilisant une membrane de nanofiltration, ayant une coupure de poids moléculaire de moins d'environ 4.000 daltons, dans des conditions de nanofiltration efficaces pour résulter en un hydrolysat d'amidon à bas DE comprenant un DE de moins d'environ 25. L'invention a également pour objet un procédé d'hydrogénation de l'hydrolysat d'amidon à bas DE produit par le procédé selon la présente invention pour conduire à un hydrolysat d'amidon à bas DE hydrogéné. L'invention concerne également un procédé de fabrication d'une émulsion substantiellement stable thermiquement et au stockage comprenant la formation d'un mélange de l'hydrolysat d'amidon à bas DE selon l'invention avec une concentration efficace d'au moins un ingrédient pour conduire à une émulsion. Enfin, l'invention concerne un procédé de fabrication d'un encapsulat d'un ingrédient substantiellement sec comprenant les étapes de : (1) formation d'une composition matricielle aqueuse comprenant l'hydrolysat d'amidon à bas DE de l'invention, (2) mélange d'au moins un ingrédient avec ladite composition matricielle pour former un mélange ; et (3) séchage dudit mélange pour conduire à un encapsulat d'ingrédient substantiellement sec.
摘要:
The invention relates to a starch conversion method wherein the starch substrate is treated in aqueous medium with an CBD/enzyme hybrid. Further, the invention also relates to an isolated DNA sequence encoding a stable CBD/enzyme hybrid, a DNA construct comprising said DNA sequence of the invention, an expression vector comprising the DNA sequence of the invention, and a CBD/enzyme hybrid.
摘要:
A method and an apparatus for making a simple sugar solution from a liquid solution including at least one compound sugar by performing hydrolysis in the presence of a heterogeneous catalyst. The method comprises contacting the hydrolysis reaction medium with at least one microporous solid adsorbent compound selected for compatibility with the hydrolysis and catalysis conditions and for selectively adsorbing by-products other than simple sugars under the hydrolysis reaction conditions. A pure, colourless, food-grade simple sugar solution is achieved.
摘要:
A method and an apparatus for making a simple sugar solution from a liquid solution including at least one compound sugar by performing hydrolysis in the presence of a heterogeneous catalyst. The method comprises contacting the hydrolysis reaction medium with at least one microporous solid adsorbent compound selected for compatibility with the hydrolysis and catalysis conditions and for selectively adsorbing by-products other than simple sugars under the hydrolysis reaction conditions. A pure, colourless, food-grade simple sugar solution is achieved.
摘要:
The invention relates to a process to achieve chemical reactions and a continuous hydrolysis of material rich in cellulose and/or starch in a tubular reactor (14) with an inlet end and a discharge end. The material is introduced at temperature and pressure adapted for hydrolysis, into a limited zone (6) with an intensive mixing to start the hydrolysis, which later on is stopped in a limited zone (8) at the discharge end by means of an intensive mixing with chemicals (9) neutralizing the material.
摘要:
Disclosed is a novel non-reducing oligosaccharide with neotrehalose structure represented by the general formula as shown by :
The oligosaccharide is obtainable by exposing an aqueous solution containing neotrehalose to a saccharide-transferring enzyme, and has a superior stability, reduced sweetness, appropriate viscosity, no susceptibility to crystallization and less fermentability. These features make it very useful in various compositions including foods, beverages, cosmetics and pharmaceuticals.
摘要:
Bei der Weizenstärkeproduktion erhält man neben der A-Stärke und des Glutens einen Restablauf, der die B-Stärke, die Pentosane und das Lösliche enthält. Dieser Restablauf ist gemäß dem Stand der Technik nur zu niedrigpreisigen Produkten weiterverarbeitbar. Das erfindungsgemäße Verfahren zur Weiterverarbeitung der Restabläufe zeichnet sich dadurch aus, daß der zu Hydrolysat verzuckerte Restablauf anschließend durch Kristallisation zu Dextrose und Melasse fraktioniert wird.