Patent classifications
C12Y302/01067
Process for the preparation of pickering emulsion forming particles by derivatization of cellulose-rich dietary fibers with enzymes and emulsions prepared
The present invention relates to a process for forming a functionalised dietary fibre comprising admixing an enzyme and an aqueous suspension of dietary fibre, wherein said dietary fibre is at a D.sub.50 particle size distribution of less than 30 microns after degradation by the enzyme and comprises less than 25 wt. % soluble fibres and at least 40% wt. % cellulose; denaturing said enzyme to form a functionalised, amphiphilic dietary fibre with adsorbed enzyme. The present invention further relates to a Pickering particle comprising a functionalised dietary fibre and denatured enzyme and the use of the functionalised dietary fibre and denatured enzyme according to present invention or the Pickering particle according to the present invention to stabilize an emulsion.
Process for the preparation of pickering emulsion forming particles by derivatization of cellulose-rich dietary fibers with enzymes and emulsions prepared
The present invention relates to a process for forming a functionalised dietary fibre comprising admixing an enzyme and an aqueous suspension of dietary fibre, wherein said dietary fibre is at a D.sub.50 particle size distribution of less than 30 microns after degradation by the enzyme and comprises less than 25 wt. % soluble fibres and at least 40% wt. % cellulose; denaturing said enzyme to form a functionalised, amphiphilic dietary fibre with adsorbed enzyme. The present invention further relates to a Pickering particle comprising a functionalised dietary fibre and denatured enzyme and the use of the functionalised dietary fibre and denatured enzyme according to present invention or the Pickering particle according to the present invention to stabilize an emulsion.
Psychrophilic enzymes compositions and methods for making and using same
Enzyme compositions with enhanced enzyme activity and/or thermophilic and psychrophilic stability are described. Additionally, methods and kits for making and using the enzyme compositions are provided.
Enzymatically hydrolysed pectic polysaccharides for treating or preventing infections
The invention relates to a product for use in the therapeutic or prophylactic treatment of infections, said treatment comprising oral administration of the product, wherein the product is selected from a nutritional formulation, a food product, a dietary supplement, a beverage and a pharmaceutical product, said product containing carrot RG-I polysaccharides having the following combination features: a molecular weight in the range 10-300 kDa; a backbone consisting of galacturonic acid residues and rhamnose residues, said rhamnose residues being contained in alpha(1.fwdarw.4)-galacturonic-alpha(1.fwdarw.2)-rhamnose residues; the following monosaccharide composition: 20-60 mol. % galacturonic acid residues, wherein the individual galacturonic acids can be methylated and/or acetyl-esterified; 8-50 mol. % rhamnose residues; 0-40 mol. % arabinose residues; 0-40 mol. % galactose residues; molar ratio of galacturonic acid residues to rhamnose residues in the range of 5:1 to 1:1; galacturonic acid residues, rhamnose residues, arabinose residues and galactose residues together constitute at least 85 mol. % of the monosaccharide residues in the carrot RG-I polysaccharides. These carrot RG-I polysaccharides can be produced by partially hydrolysing pectic polysaccharides present in a carrot pectin isolate. The effectiveness of carrot RG-I polysaccharides against infections is substantially improved by enzymatically hydrolysing the RG-I polysaccharides to remove at least part of the homogalacturonan component.
PROCESS FOR THE PREPARATION OF PICKERING EMULSION FORMING PARTICLES BY DERIVATIZATION OF CELLULOSE-RICH DIETARY FIBERS WITH ENZYMES AND EMULSIONS PREPARED
The present invention relates to a process for forming a functionalised dietary fibre comprising admixing an enzyme and an aqueous suspension of dietary fibre, wherein said dietary fibre is at a D.sub.50 particle size distribution of less than 30 microns after degradation by the enzyme and comprises less than 25 wt. % soluble fibres and at least 40% wt. % cellulose; denaturing said enzyme to form a functionalised, amphiphilic dietary fibre with adsorbed enzyme. The present invention further relates to a Pickering particle comprising a functionalised dietary fibre and denatured enzyme and the use of the functionalised dietary fibre and denatured enzyme according to present invention or the Pickering particle according to the present invention to stabilize an emulsion.
PROCESS FOR THE PREPARATION OF PICKERING EMULSION FORMING PARTICLES BY DERIVATIZATION OF CELLULOSE-RICH DIETARY FIBERS WITH ENZYMES AND EMULSIONS PREPARED
The present invention relates to a process for forming a functionalised dietary fibre comprising admixing an enzyme and an aqueous suspension of dietary fibre, wherein said dietary fibre is at a D.sub.50 particle size distribution of less than 30 microns after degradation by the enzyme and comprises less than 25 wt. % soluble fibres and at least 40% wt. % cellulose; denaturing said enzyme to form a functionalised, amphiphilic dietary fibre with adsorbed enzyme. The present invention further relates to a Pickering particle comprising a functionalised dietary fibre and denatured enzyme and the use of the functionalised dietary fibre and denatured enzyme according to present invention or the Pickering particle according to the present invention to stabilize an emulsion.
ENZYMATICALLY HYDROLYSED PECTIC POLYSACCHARIDES FOR TREATING OR PREVENTING INFECTIONS
The invention relates to a product for use in the therapeutic or prophylactic treatment of infections, said treatment comprising oral administration of the product, wherein the product is selected from a nutritional formulation, a food product, a dietary supplement, a beverage and a pharmaceutical product, said product containing carrot RG-I polysaccharides having the following combination features: a molecular weight in the range 10-300 kDa; a backbone consisting of galacturonic acid residues and rhamnose residues, said rhamnose residues being contained in alpha(1.fwdarw.4)-galacturonic-alpha(1.fwdarw.2)-rhamnose residues; the following monosaccharide composition: 20-60 mol. % galacturonic acid residues, wherein the individual galacturonic acids can be methylated and/or acetyl-esterified; 8-50 mol. % rhamnose residues; 0-40 mol. % arabinose residues; 0-40 mol. % galactose residues; molar ratio of galacturonic acid residues to rhamnose residues in the range of 5:1 to 1:1; galacturonic acid residues, rhamnose residues, arabinose residues and galactose residues together constitute at least 85 mol. % of the monosaccharide residues in the carrot RG-I polysaccharides.
These carrot RG-I polysaccharides can be produced by partially hydrolysing pectic polysaccharides present in a carrot pectin isolate. The effectiveness of carrot RG-I polysaccharides against infections is substantially improved by enzymatically hydrolysing the RG-I polysaccharides to remove at least part of the homogalacturonan component.
METHOD OF PRODUCING A PECTIC POLYSACCHARIDE ISOLATE ENRICHED IN RHAMNOGALACTURONAN-I
The invention provides a method of producing a hydrolysed pectic polysaccharide isolate that is enriched in rhamnogalacturonan-I, said method comprising the steps of: providing a pectin-rich substrate that has been obtained from plant material without the use of organic solvent, said pectin-rich substrate containing at least 3% by weight of dry matter of pectic polysaccharides; subjecting the pectin-rich substrate to enzymatic treatment to partially hydrolyse the pectic polysaccharides, said treatment enzymatic treatment comprising the use of one or more pectinases selected from pectin lyase (EC4.2.2.10), pectate lyase (EC 4.2.2.2), rhamnogalacturonan galacturonohydrolase (EC 3.2.1.173), endo-polygalacturonase (EC 3.2.1.15), exopolygalacturonase (EC 3.2.1.67 and EC 3.2.1.82); subjecting the partially hydrolysed pectic polysaccharides to ultrafiltration using an ultrafiltration membrane having a molecular weight cut-off in the range of 5 to 100 kDa; and recovering the ultrafiltration retentate.
The present invention further relates to the hydrolysed pectic polysaccharide isolate obtained by the present method and to a process of preparing a product selected from a nutritional formulation, a food product, a dietary supplement, a beverage or a pharmaceutical product, said process comprising addition of the aforementioned hydrolysed pectic polysaccharide isolate.
Enzyme formulation for use as food supplement
The present document describes an enzyme formulation comprising an enzyme mixture comprising from about 5% to about 45% (wt/wt) of a fungal protease enzyme; and from about 1.5% to about 50% (wt/wt) of at least one polysaccharide digesting enzyme; in combination with an acceptable pharmaceutical carrier. The present document also describes the use of the formulation of the present invention for the prevention or treatment of digestive disorder.
PREPARATION METHOD OF PECTIC POLYSACCHARIDE WITH EFFECT OF REGULATING AND CONTROLLING ICE CRYSTAL GROWTH
The present disclosure provides a preparation method of a pectic polysaccharide with an effect of regulating and controlling ice crystal growth, comprising step 1, extracting a pectin crude extract from fruit and vegetable powder; step 2, carrying out branched chain enzymolysis on pectin crude extract to obtain pectin enzymatic hydrolysate; step 3, adding pectin methylesterase and pectin acetylesterase into pectin enzymatic hydrolysate for precise de-esterification enzymolysis; step 4, adding 0.5-2 U/mL of polygalacturonase into pectin enzymatic hydrolysate obtained in step 3, and hydrolyzing for 1.5-2.5 hours; and step 5, collecting precipitate in pectin enzymatic hydrolysate obtained in step 4 to obtain modified pectin. The modified pectin has a purity higher than 90%, a methyl esterification degree of 45-55%, an acetylation degree less than 2%, a neutral sugar content less than 5%, and an average molecular weight of 1.4-7.5 kDa, and obviously reduces an ice crystal size in a freezing process.