Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method for chitosan-sodium caseinate blend films

A technology of sodium caseinate and chitosan, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as insufficient performance and restrict application, and achieve improved water resistance, increased mechanical strength, The effect of improving the water vapor transmission rate performance

Inactive Publication Date: 2012-10-03
GUANGDONG OCEAN UNIVERSITY
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the deficiency of pure chitosan film in various aspects, its application is restricted.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Under normal temperature and pressure, dissolve 5g of chitosan in 100ml, 1% dilute acetic acid solution to form a solution, and dissolve 1g of sodium caseinate in 20ml of purified water. Take 90ml of the above-mentioned chitosan solution and 10ml of the above-mentioned sodium caseinate solution, mix them completely by mechanical stirring, filter the blended solution, degass under reduced pressure, cast a film on a glass plate, and place it in an oven for 25~ Dry at 35°C. Soak the above-mentioned glass plate in 1.5-2.5% NaOH solution until the film falls off naturally, take out the film, wash it fully with distilled water until neutral, then fix it on the plexiglass plate, dry it in an oven, and remove it. That is to obtain the chitosan content of 90% blend film. The measured tensile strength of the blended film is: 6184×10N / cm, the water absorption rate is 71.9%, the water vapor transmission rate is: 0.034% on the first day, 0.026% on the second day, and 0.026% on the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
water absorptionaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method for chitosan-sodium caseinate blend films. In the method, chitosan and sodium caseinate are taken as film materials, and chitosan-sodium caseinate blend films with different properties can be prepared by controlling the content of the sodium caseinate. Since the sodium caseinate is introduced, the mechanical strength, water absorbing capacity and watervapor transmittance of chitosan films are obviously improved. The blend film can serve as a separation film, and also can serve as a controlled-release film and a packing film for medicines.

Description

technical field [0001] The invention relates to a preparation method of a chitosan and sodium caseinate blend film. Background technique [0002] Sodium caseinate (sodium casetnate, referred to as EC), also known as sodium caseinate, sodium caseinate, sodium caseinate, is a derivative of casein. Sodium caseinate has good emulsification, heat stability, thickening, foaming, moisturizing, film-forming and other characteristics, and is easily absorbed by the human body. According to the regulations of GB2760-1996, sodium caseinate can be used in all kinds of food and should be used in appropriate amount according to production needs. Because sodium caseinate is separated from milk, it contains all the essential amino acids needed by the human body and has high nutritional value. In addition to good emulsification and thickening effects, it can also be used as a protein enhancer and is widely used in protein drinks. , meat products, oatmeal, milk powder, jelly and other foods,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D71/08B01D67/00B01D69/12
Inventor 李思东林宏图杨磊李程鹏
Owner GUANGDONG OCEAN UNIVERSITY