2results about How to "Good processing characteristics" patented technology

The invention discloses modified chickpea starch and a preparation method and application thereof, and belongs to the technical field of food processing.The modified chickpea starch is obtained by adding oat beta glucan into chickpea starch, then conducting pretreatment on the chickpea starch, conducting extrusion treatment on the chickpea starch through a double-screw extruder, and cooling, drying and smashing an extruded sample; wherein the addition amount of the oat beta glucan is 3 to 15 percent; the temperature of the extrusion treatment is 80-120 DEG C. The chickpea starch is subjected to compound modification by adopting a twin-screw extrusion technology in cooperation with oat beta glucan, and a starch semi-crystalline layer is deeply destroyed to realize deep regulation and control of a multi-scale structure; meanwhile, the oat beta glucan and the starch form a hydrogen bond network, so that the problem of excessive modification of chemical modification is avoided, and the thermal stability, the shear resistance and the aging resistance of the starch are remarkably improved; no chemical reagent participates in the whole process, no chemical residue risk exists, and the method has the advantages of continuous production, large treatment capacity, low energy consumption and the like.

The application discloses a polyester chemical regeneration method based on multi-parameter crystal form regulation, and belongs to the technical field of high polymer material purification.The polyester chemical regeneration method based on multi-parameter crystal form regulation comprises the following steps: after pretreatment of a depolymerization solution of polyethylene terephthalate, a good solvent is added to obtain a crystallization system; the crystallization system is put into a first-stage crystallizer, the crystallization system is heated to a first-stage initial temperature, the crystallization system is cooled to a first-stage crystallization temperature at a first-stage cooling rate and is kept warm, slurry is obtained, first solid-liquid separation is carried out, and a solution rich in polyethylene terephthalate monomers is obtained; the solution is put into a second-stage crystallizer, initial heating, second-stage monomer nucleation and second-stage monomer growth are sequentially carried out while stirring, and after the completion, second solid-liquid separation, washing and drying are carried out, and polyethylene terephthalate monomers are obtained.The application realizes directional induction and stable generation of alpha crystal form through crystallization process design and multi-parameter regulation.