Aqueous solvent composition for dissolving wheat preservation protein and use thereof

A water-based solvent and protein storage technology, which is applied in the direction of single-component protein rayon, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of protein degradation and expensive solvents, and achieve strong solubility, which is conducive to industrial production. The effect of short production cycles

Inactive Publication Date: 2008-02-06
ZHEJIANG UNIV
0 Cites 6 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Strong denaturants such as hexafluoroisopropanol can dissolve wheat storage proteins (Woerdeman DL, Ye P, Shenoy S, Pamas RS, Wnek GE, Trofimova O, Electrospun fibers from wheat protein: investigation of the interplay between molecular structure and the fluid dynamics of the electrospinning process.Biomacromolecules, 6, 707-712, 2005), but t...
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Method used

[0017] The preparation method of the aqueous solvent composition is simple, the alkali metal hydroxide is mixed with the sulfur-containing compound, and the deionized water is added for dissolving. The dissolving method of the wheat storage protein is also simple and easy, and the protein is added into the aq...
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Abstract

The present invention discloses a wheat storage protein soluble waterborne solvent compound and application. The waterborne solvent compound comprises 5-25wt percent of alkaline metal hydroxide, 1-5wt percent of sulfur-containing compounds, and water. The waterborne solvent compound can be used to dissolve wheat storage protein and to prepare wheat protein fiber. The present invention has the beneficial effects below. Firstly, the waterborne solvent compound provided by the present invention has strong dissolving capacity and can dissolve industrial gluten flour including starch impurities completely under normal temperature; secondly, the waterborne solvent compound provided by the present invention causes no degradation of wheat storage protein and has a long period of solution storage; thirdly, the wheat protein fiber provided by the present invention has a short production cycle and the production technique is simple, being favorable for industrialized production.

Application Domain

Monocomponent protein artificial filament

Technology Topic

ChemistryAlkali hydroxide +9

Examples

  • Experimental program(5)

Example Embodiment

[0019] Example 1:
[0020] Weigh 5g of lithium hydroxide and 1g of sodium sulfite, add 94g of deionized water to form an aqueous solvent composition, add 5g of gluten powder under stirring conditions, and form a solution with a protein concentration of 5wt%.

Example Embodiment

[0021] Example 2:
[0022] Take by weighing 25g sodium hydroxide, 5g sodium thiosulfate, add in 70g deionized water, be made into aqueous solvent composition, add 20g gluten powder under stirring condition, filter with 200 mesh filter screens, use centrifuge at 4000 rpm Centrifuge at 1 min for 15 min to remove air bubbles, inject the fibers into the coagulation solution containing 5 wt% sodium sulfate and 5 wt% sulfuric acid, wash with water, dry naturally, and heat-treat at 100°C for 30 min. The tensile strength of the obtained fiber measured by the electronic tensile machine was 123±5MPa, the elongation at break was 34.5±3.0%, and the Young's modulus was 6±0.5GPa.

Example Embodiment

[0023] Example 3:
[0024] Take by weighing 10g potassium hydroxide, 3g sodium dithionite, add in 87g deionized water, be made into aqueous solvent composition, add 10g gluten powder under stirring condition, filter with 200 mesh filter screens, use centrifuge at 4000 rev/min Centrifuge for 15 minutes to remove air bubbles, prepare fibers with a simple spinning machine, coagulate in a coagulation solution of 15wt% sodium sulfate and 15wt% sulfuric acid, wash with water, dry naturally, and heat-treat at 140°C for 10 minutes.
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PUM

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Description & Claims & Application Information

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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
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Short production cycleSimple processConducive to industrial productionProduction cycleEgg whiteGlutenImpurityStarch
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