Abrégé

A process for preparing starch having a reduce amount of contaminants is described. The purified starch is obtained by a process comprising the steps of providing a slurry containing a granular starch and contaminants and having a pH from 5.0-11.0. Thereafter, the contaminants are washed out of the slurry at least partially with water in a plurality of nozzle centrifuges provided in series, wherein the slurry is added to a first centrifuge of the series, and wash water is added to a last centrifuge of the series; and wherein each nozzle centrifuge separates an incoming slurry flow in a light fraction that comprises wash water and a washed out part of the contaminants, and a heavy fraction that comprises starch and a non-washed out part of the contaminants. The slurry may be dried after washing and optionally milled to obtain the starch.

Classes IPC  ?

• C08B 30/00 - Préparation de l'amidon, de l'amidon dégradé ou modifié par un traitement non chimique, de l'amylose ou de l'amylopectine
• C08B 30/04 - Extraction ou purification

Abrégé

The preparation of pregelatinized starch and/or pregelatinized flour, including the steps of: providing an aqueous medium having a pH of −1.0 to 7.5; mixing starch and/or flour with the aqueous medium to form a starch composition having a pH of 2.0 to 7.9, wherein the starch composition has the aqueous medium as continuous phase and contains between 20 and 60 wt. %, expressed as percentage of dry matter on total weight of the starch composition, of particles of starch and/or flour; pregelatinizing the starch composition, wherein said composition is heated using a drum dryer, while rotating the drum, to form the pregelatinized starch and/or pregelatinized flour, wherein during the heating the starch composition is dried using the drum dryer; allowing the pregelatinized starch and/or pregelatinized flour to cool to a temperature of at most 80° C.; and storing the obtained pregelatinized starch and/or pregelatinized flour at a temperature of at most 60° C.

Classes IPC  ?

• A23L 29/212 - AmidonAmidon modifiéDérivés d'amidon, p. ex. esters ou éthers
• A23L 7/10 - Produits dérivés des céréales
• C08L 3/04 - Dérivés de l'amidon

Abrégé

Disclosed is a process for the treatment of a raw material containing thermally inhibited starch and/or thermally inhibited flour as its largest constituent, whereby the moisture content of the raw material is at most 8 wt. %, including a remoistening step wherein between 0.1 and 30 wt. % of an aqueous phase is added to the raw material to form a product containing remoistened starch and/or remoistened flour.

Classes IPC  ?

• A23L 29/212 - AmidonAmidon modifiéDérivés d'amidon, p. ex. esters ou éthers
• A23L 5/00 - Préparation ou traitement des aliments ou produits alimentaires en généralAliments ou produits alimentaires ainsi obtenusLeurs matériaux
• A23L 7/10 - Produits dérivés des céréales
• C08L 3/02 - AmidonSes produits de dégradation, p. ex. dextrine
• C08B 30/00 - Préparation de l'amidon, de l'amidon dégradé ou modifié par un traitement non chimique, de l'amylose ou de l'amylopectine

Abrégé

A process is provided for the preparation of pregelatinized starch and/or pregelatinized flour, comprising the steps of: providing an aqueous medium having a pH of -1.0 to 7.5; mixing starch and/or flour with the aqueous medium to form a starch composition having a pH of 2.0 to 7.9, wherein the starch composition has the aqueous medium as continuous phase and contains between 20 and 60 wt.%, expressed as percentage of dry matter on total weight of the starch composition, of particles of starch and/or flour; pregelatinizing the starch composition, wherein said composition is heated using a drum dryer, while rotating the drum, to form the pregelatinized starch and/or pregelatinized flour, wherein during the heating the starch composition is dried using the drum dryer; allowing the pregelatinized starch and/or pregelatinized flour to cool to a temperature of at most 80ºC; and storing the obtained pregelatinized starch and/or pregelatinized flour at a temperature of at most 60ºC.

Classes IPC  ?

• A23L 29/212 - AmidonAmidon modifiéDérivés d'amidon, p. ex. esters ou éthers
• C08B 30/14 - Amidon dispersable dans l'eau froide ou amidon prégélifié

Abrégé

A process is provided for the preparation of pregelatinized starch and/or pregelatinized flour, comprising the steps of: providing an aqueous medium having a pH of -1.0 to 7.5; mixing starch and/or flour with the aqueous medium to form a starch composition having a pH of 2.0 to 7.9, wherein the starch composition has the aqueous medium as continuous phase and contains between 20 and 60 wt.%, expressed as percentage of dry matter on total weight of the starch composition, of particles of starch and/or flour; pregelatinizing the starch composition, wherein said composition is heated using a drum dryer, while rotating the drum, to form the pregelatinized starch and/or pregelatinized flour, wherein during the heating the starch composition is dried using the drum dryer; allowing the pregelatinized starch and/or pregelatinized flour to cool to a temperature of at most 80ºC; and storing the obtained pregelatinized starch and/or pregelatinized flour at a temperature of at most 60ºC.

Classes IPC  ?

• A23L 29/212 - AmidonAmidon modifiéDérivés d'amidon, p. ex. esters ou éthers
• C08B 1/00 - Traitement préparatoire de la cellulose pour l'obtention de dérivés cellulosiques
• C08B 30/00 - Préparation de l'amidon, de l'amidon dégradé ou modifié par un traitement non chimique, de l'amylose ou de l'amylopectine
• C08L 3/00 - Compositions contenant de l'amidon, de l'amylose ou de l'amylopectine ou leurs dérivés ou leurs produits de dégradation

Abrégé

Disclosed is a process for the preparation of thermally inhibited starch and/or thermally inhibited flour having a moisture content lying between 5 and 30 wt. %, having the following steps: a slurrying step, wherein thermally inhibited starch and/or thermally inhibited flour is combined with an aqueous phase to form a slurry; and a drying step, wherein the aqueous phase of the slurry is separated off from the thermally inhibited starch and/or thermally inhibited flour, wherein in the slurrying step the pH of the slurry is brought to a value between 2.0 and 7.5.

Classes IPC  ?

• A23L 7/10 - Produits dérivés des céréales
• A23L 29/219 - Amidon chimiquement modifiéProduits de réaction ou de complexation de l’amidon avec d’autres produits chimiques
• A23L 29/225 - Agents épaississants farineux autres que l’amidon pur ou ses dérivés
• C08B 30/06 - SéchageMise en forme

Abrégé

The invention relates to a process for the preparation of thermally inhibited starch and/or thermally inhibited flour having a moisture content lying between 5 and 30 wt.%, comprising: • a slurrying step, wherein thermally inhibited starch and/or thermally inhibited flour is combined with an aqueous phase to form a slurry; • a drying step, wherein the aqueous phase of the slurry is separated off from the thermally inhibited starch and/or thermally inhibited flour, wherein in the slurrying step the pH of the slurry is brought to a value between 2.0 and 7.5.

Classes IPC  ?

• C08B 30/00 - Préparation de l'amidon, de l'amidon dégradé ou modifié par un traitement non chimique, de l'amylose ou de l'amylopectine
• C08B 30/08 - Concentration de suspensions d'amidon
• C08B 30/12 - Amidon dégradé ou modifié par un traitement non chimiqueBlanchiment de l'amidon
• A23L 29/219 - Amidon chimiquement modifiéProduits de réaction ou de complexation de l’amidon avec d’autres produits chimiques

Abrégé

The invention relates to a process for the treatment of a raw material containing thermally inhibited starch and/or thermally inhibited flour as its largest constituent, whereby the moisture content of the raw material is at most 8 wt.%, comprising a remoistening step wherein between 0.1 and 30 wt.% of an aqueous phase is added to the raw material to form a product containing remoistened starch and/or remoistened flour.

Classes IPC  ?

• A23L 29/212 - AmidonAmidon modifiéDérivés d'amidon, p. ex. esters ou éthers

Abrégé

The invention relates to a process for the treatment of a raw material containing thermally inhibited starch and/or thermally inhibited flour as its largest constituent, whereby the moisture content of the raw material is at most 8 wt.%, comprising a remoistening step wherein between 0.1 and 30 wt.% of an aqueous phase is added to the raw material to form a product containing remoistened starch and/or remoistened flour.

Classes IPC  ?

• A23L 29/212 - AmidonAmidon modifiéDérivés d'amidon, p. ex. esters ou éthers