The present invention relates to a method for preparing a legume starch with a high content of slowly digestible fraction (SDS), a heat-moisture treatment method characterized in that it comprises the following steps: 1) Adjusting the water content of the native pea starch to a value of less than 35%, preferably between 20 and 30% by weight, even more preferably between 20 and 25% by weight, 2) Heating the starch thus prepared to a temperature of more than 100 C., preferably from 105 C. to 135 C. for more than 5 hours, preferably for more than 10 hours, and even more preferentially for 24 hours, 3) Recovering and optionally drying the starch thus treated.

The present invention relates to a method for preparing a legume starch with a high content of slowly digestible fraction (SDS), a heat-moisture treatment method characterized in that it comprises the following steps: 1) Adjusting the water content of the native pea starch to a value of less than 35%, preferably between 20 and 30% by weight, even more preferably between 20 and 25% by weight, 2) Heating the starch thus prepared to a temperature of more than 100 C., preferably from 105 C. to 135 C. for more than 5 hours, preferably for more than 10 hours, and even more preferentially for 24 hours, 3) Recovering and optionally drying the starch thus treated.

The embodiments of the present application provide a maize fiber processing system and a maize wet-milled starch processing system using same. The maize fiber processing system comprises a pressure curved screen group, a fiber washing sink group, an enzyme preparation adding device and an external enzyme reaction tank, wherein the external enzyme reaction tank is used for receiving screen overflow from a middle stage of pressure curved screen or fiber slurry in a middle stage of fiber washing sink and providing a place for enzyme reaction, thereby extending reaction time of enzyme participation. In addition, the reaction efficiency of the enzyme preparation can be further improved by means of controlling the fiber dry substance concentration in the external enzyme reaction tank.

The embodiments of the present application provide a maize fiber processing system and a maize wet-milled starch processing system using same. The maize fiber processing system comprises a pressure curved screen group, a fiber washing sink group, an enzyme preparation adding device and an external enzyme reaction tank, wherein the external enzyme reaction tank is used for receiving screen overflow from a middle stage of pressure curved screen or fiber slurry in a middle stage of fiber washing sink and providing a place for enzyme reaction, thereby extending reaction time of enzyme participation. In addition, the reaction efficiency of the enzyme preparation can be further improved by means of controlling the fiber dry substance concentration in the external enzyme reaction tank.

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.

System for and method of producing a pure starch slurry and alcohol by using combined corn wet and dry milling processes. A simple and lower cost process to obtain starch inside floury endosperm is provided. The starch can be highly purified to meet green technology process needs. The remaining starch inside the corn kernels can be used as feedstock for alcohol production and to produce valuable co-products such as oil and various animal feeds.

System for and method of producing a pure starch slurry and alcohol by using combined corn wet and dry milling processes. A simple and lower cost process to obtain starch inside floury endosperm is provided. The starch can be highly purified to meet green technology process needs. The remaining starch inside the corn kernels can be used as feedstock for alcohol production and to produce valuable co-products such as oil and various animal feeds.

A method for manufacturing a swelling-inhibited starch, the production method including a step for performing a heating treatment at 55-205 C. on a starch for which the value of M.sub.1M.sub.0 is within the range from 10 to 20 and setting a breakdown value of a starch paste solution to no greater than 75% of the value before the heating treatment. The heating treatment is performed using closed heating equipment without implementing a moist-heat treatment. M.sub.1: Moisture content (%) of starch before heating treatment M.sub.0: Equilibrium moisture content (%) of starch at normal temperature and normal humidity.

A method for manufacturing a swelling-inhibited starch, the production method including a step for performing a heating treatment at 55-205 C. on a starch for which the value of M.sub.1M.sub.0 is within the range from 10 to 20 and setting a breakdown value of a starch paste solution to no greater than 75% of the value before the heating treatment. The heating treatment is performed using closed heating equipment without implementing a moist-heat treatment. M.sub.1: Moisture content (%) of starch before heating treatment M.sub.0: Equilibrium moisture content (%) of starch at normal temperature and normal humidity.