The present disclosure relates to a method of producing a grain powder including: (a) immersing a grain raw material into water; (b) freezing the immersed grain raw material at 196 C. to 50 C.; (c) grinding the frozen grain raw material to obtain a ground product, wherein the ground product has an average particle size smaller than a cell size of the grain raw material, and (d) freeze-drying the ground product at 80 C. to 20 C. to obtain the grain powder.

The present disclosure relates to a method of producing a grain powder including: (a) immersing a grain raw material into water; (b) freezing the immersed grain raw material at 196 C. to 50 C.; (c) grinding the frozen grain raw material to obtain a ground product, wherein the ground product has an average particle size smaller than a cell size of the grain raw material, and (d) freeze-drying the ground product at 80 C. to 20 C. to obtain the grain powder.

Systems and methods for cooling and processing materials are disclosed.

Systems and methods for cooling and processing materials are disclosed.

The present invention Production process of nixtamalized maize flour, nixtamalizing the maize fractions separately without producing nejayote, considers the integration of the processes: Semi-humid milling of the maize (fractionated degerm), extruding of the maize endosperm and milling-instant dehydration of the different nixtamalized and extruded maize fractions, has as novelty the way in which the nixtamalization process is carried out and the objective is to provide a nixtamalized maize flour production system that reduces the residues from the maize grain and completely eliminating nejayote production.

The present invention Production process of nixtamalized maize flour, nixtamalizing the maize fractions separately without producing nejayote, considers the integration of the processes: Semi-humid milling of the maize (fractionated degerm), extruding of the maize endosperm and milling-instant dehydration of the different nixtamalized and extruded maize fractions, has as novelty the way in which the nixtamalization process is carried out and the objective is to provide a nixtamalized maize flour production system that reduces the residues from the maize grain and completely eliminating nejayote production.

A method of recycling single or limited use items may include providing a one or more single or limited use items to a buyer, collecting the single or limited use items from the buyer when the single or limited use items are soiled, and producing oil and/or one or more petroleum-based product from the used items.

A method of recycling single or limited use items may include providing a one or more single or limited use items to a buyer, collecting the single or limited use items from the buyer when the single or limited use items are soiled, and producing oil and/or one or more petroleum-based product from the used items.

Systems and methods for cooling and processing materials are disclosed.

A roller mill (10) for grinding material, an aspirating assembly (23; 23) and a method of retrofitting an existing roller mill. The roller mill (10) contains a grinding space (11, 11) for grinding material, a separating wall (17) separates the grinding space from an aspiration space (21, 21). At least one aspiration opening (13), is formed in the separating wall (17) through which aspiration air can flow due to a pressure difference between the aspiration space and the grinding space. The roller mill (10) has a closing element (14) for opening and closing the aspiration opening (13). The closing element (14) is in or moves into an opening position (O), which opens the aspiration opening (13), when the pressure difference exceeds a threshold value, and is in or moves into a closing position (S), which closes the aspiration opening (13), when the pressure difference falls bellow the threshold value.