A novel dry mill process for producing pure starch, which can be used as a feed stock for bio tech processes. Corn feedstock is sent through a particle size reduction device, such as a hammer mill, to produce corn flour. The corn flour is screened into a small particle portion (which mainly contains “free” starch from the floury endosperm) and a larger particle portion (which mainly comprises the horny endosperm, germ pericarp and tip cap). The small particle potion is sent to a liquefication and a saccharification process to produce high Be corn syrup. A mud phase (mixture of oil, germ, and any light solid) is centrifuged. The light phase is sent to precoat drum filtration to produce clean corn syrup. Further, a novel wet mill process to produce starch and alcohol is disclosed. A three-section paddle screen can be used to separate starch from grit and fiber.

A novel dry mill process for producing pure starch, which can be used as a feed stock for bio tech processes. Corn feedstock is sent through a particle size reduction device, such as a hammer mill, to produce corn flour. The corn flour is screened into a small particle portion (which mainly contains “free” starch from the floury endosperm) and a larger particle portion (which mainly comprises the horny endosperm, germ pericarp and tip cap). The small particle potion is sent to a liquefication and a saccharification process to produce high Be corn syrup. A mud phase (mixture of oil, germ, and any light solid) is centrifuged. The light phase is sent to precoat drum filtration to produce clean corn syrup. Further, a novel wet mill process to produce starch and alcohol is disclosed. A three-section paddle screen can be used to separate starch from grit and fiber.

The present invention provides a method for removing an organic solvent from starch hemostatic microspheres, comprising the following steps: 1. taking to-be-dried starch hemostatic microspheres and laying them flatly on drying trays with attention to laying them as uniformly and thinly as possible; 2. taking an adsorbent and subpackaging it into dialyzing paper bags for sealing; and 3. placing the trays and the dialyzing paper bags completed in the previous two steps on separators of a low-temperature vacuum oven in layers, setting the oven temperature at 0-20° C., then vacuumizing and keeping pressure for 15-48 hours. The method provided by the present invention can reduce organic solvent residue in the starch hemostatic microspheres to less than 0.05%, which meets the requirements of relevant standards for medical devices, thereby improving safety of products.

The present invention provides a method for removing an organic solvent from starch hemostatic microspheres, comprising the following steps: 1. taking to-be-dried starch hemostatic microspheres and laying them flatly on drying trays with attention to laying them as uniformly and thinly as possible; 2. taking an adsorbent and subpackaging it into dialyzing paper bags for sealing; and 3. placing the trays and the dialyzing paper bags completed in the previous two steps on separators of a low-temperature vacuum oven in layers, setting the oven temperature at 0-20° C., then vacuumizing and keeping pressure for 15-48 hours. The method provided by the present invention can reduce organic solvent residue in the starch hemostatic microspheres to less than 0.05%, which meets the requirements of relevant standards for medical devices, thereby improving safety of products.

The invention relates to a method for producing a heat-modified starch, comprising the steps consisting in: (i) preparing a starch milk having a solids content of between 30 and 40%, preferably between 35 and 37% by weight, (ii) adding a solution of an alkaline agent at a weight concentration of between 25 and 35%, preferably of 30%, so as to obtain a conductivity on the milk of between 4 and 7 mS/cm, (iii) ensuring a contact time of between 0.5 and 2 hours, (iv) filtering and drying the starch milk such that the conductivity of the dried starch resuspended at 20% by weight of solids is between 0.7 and 2.5 mS/cm, (v) heating said dried starch so as to bring it to a temperature of more than 180° C. for a residence time of between 10 and 40 minutes, even more preferentially between 15 and 35 minutes.

The invention relates to a method for producing a heat-modified starch, comprising the steps consisting in: (i) preparing a starch milk having a solids content of between 30 and 40%, preferably between 35 and 37% by weight, (ii) adding a solution of an alkaline agent at a weight concentration of between 25 and 35%, preferably of 30%, so as to obtain a conductivity on the milk of between 4 and 7 mS/cm, (iii) ensuring a contact time of between 0.5 and 2 hours, (iv) filtering and drying the starch milk such that the conductivity of the dried starch resuspended at 20% by weight of solids is between 0.7 and 2.5 mS/cm, (v) heating said dried starch so as to bring it to a temperature of more than 180° C. for a residence time of between 10 and 40 minutes, even more preferentially between 15 and 35 minutes.

A method for producing a cold-water-soluble starch. The method includes: 1) adding a starch and 3-45 wt. % of an ethanol aqueous solution to a container, and stirring a mixture of the starch and the ethanol aqueous solution in the container, thus yielding a starch-ethanol-water; 2) introducing the starch-ethanol-water to an extruder and producing a noodle extrudate, where the extruder comprises 3 continuous temperature control areas: a first area having a temperature of 50° C., a second area having a temperature of between 95 and 120° C., and a third area having a temperature of 60° C.; a rotation speed of the extruder is 70-150 rpm; and the noodle extrudate has a diameter of 0.2-0.5 cm; 3) pressing and roll slitting the noodle extrudate, thus yielding a plurality of slices; and 4) drying the plurality of slices in a microwave vacuum oven, cooling, and pulverizing the plurality of slices.

A method for producing a cold-water-soluble starch. The method includes: 1) adding a starch and 3-45 wt. % of an ethanol aqueous solution to a container, and stirring a mixture of the starch and the ethanol aqueous solution in the container, thus yielding a starch-ethanol-water; 2) introducing the starch-ethanol-water to an extruder and producing a noodle extrudate, where the extruder comprises 3 continuous temperature control areas: a first area having a temperature of 50° C., a second area having a temperature of between 95 and 120° C., and a third area having a temperature of 60° C.; a rotation speed of the extruder is 70-150 rpm; and the noodle extrudate has a diameter of 0.2-0.5 cm; 3) pressing and roll slitting the noodle extrudate, thus yielding a plurality of slices; and 4) drying the plurality of slices in a microwave vacuum oven, cooling, and pulverizing the plurality of slices.

Provided are: an oligosaccharide powder having high working properties, the oligosaccharide powder being characterized by containing a dextrin having a dextrose equivalent of 10 to 18 and an oligosaccharide; and a method for manufacturing the same.

Provided are: an oligosaccharide powder having high working properties, the oligosaccharide powder being characterized by containing a dextrin having a dextrose equivalent of 10 to 18 and an oligosaccharide; and a method for manufacturing the same.