Rice bran protein porous material and application thereof

Abstract

The invention belongs to the field of porous polymer materials, and particularly relates to a rice bran protein porous material with strong adsorption performance. The porous material is prepared by the following steps: adding rice bran protein into a solution to form a rice bran protein solution, performing modification treatment, conducting stirring, foaming, freezing, plasticizing, and freeze-drying to obtain the rice bran protein intercommunication porous material with high adsorption of organic solvents and grease, light weight, high porosity, degradability, greenness and environment-friendliness. The organic solvents comprise one or more of acetonitrile, methanol, ethyl acetate, isooctane, petroleum ether, cyclohexane and glycerol; The grease comprises one or more of rice bran oil, soybean oil, sunflower oil or medium-chain triglyceride. The preparation method provided by the invention is simple in process, easy to operate and suitable for large-scale production in factories, theraw materials are from natural products, and thus the prepared porous material is safe and non-toxic, has good biocompatibility, and can be widely applied to the fields of food, organic solvent wasteliquid transportation, biomedical materials and the like.

Description

technical field [0001] The invention belongs to the field of porous polymer materials, and in particular relates to a rice bran protein porous material with strong adsorption performance and its application. Background technique [0002] A porous material is a material with a network structure composed of interpenetrating or closed pores, and the boundaries or surfaces of the pores are composed of pillars or plates. It has the characteristics of regularly arranged and adjustable pore structure, low relative density, high specific strength, large porosity and surface area, good permeability and adsorption, etc. It is used in macromolecular catalysis, adsorption and separation, nanomaterial assembly, biochemistry , molecular recognition, chemical sensing and chromatographic carriers and many other fields have a wide range of applications. [0003] Porous monoliths can be divided into polymer-based porous monoliths, silicon-based porous monoliths, and organic-inorganic hybrid ...

AI Technical Summary

Problems solved by technology

This material has good biocompatibility and has the prospect of being used as a tissue engineering material, but it needs repeated extraction with water and ethanol to remove the oil phase (n-hexane, methane, styrene, etc.), which not only has the hazard of residual organic solvents, but also complicated and cumbersome operations , long reaction time (room temperature 24-48h)

[0006] Literature (Oh, I.K., & Lee, S. (2018). Utilization of foam structured hydroxypropyl methylcellulose for oleogels and their application as a solidfat replacer in muffins. Food Hydrocolloids, 77, 796-802.) using foam template method to prepare hydroxypropyl methylcellulose Polymer (HPMC) porous material has certain oil absorption and can partially replace butter in bakery products, but the gel performance of this material is low after oil absorption (G'3 )

Images