Edible seaweed straw and preparation method thereof

A straw and seaweed technology, applied in the field of straws, can solve the problems of ecological environment damage, threats to human health, pollution, etc., and achieve the effects of strong mechanical properties and barrier properties, obvious use value, and no toxic side effects

Pending Publication Date: 2022-02-22
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Plastic pollution is a worldwide problem. On average, about 5 billion plastic straws are used every day on the earth. With the development of society, the extensive use of plastic straws has caused the problem of plasticizers to become more and more prominent. Plasticizers in plastic straws , as the temperature of the drink increases, it wil

Method used

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  • Edible seaweed straw and preparation method thereof
  • Edible seaweed straw and preparation method thereof
  • Edible seaweed straw and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] First, weigh 8.0g of sodium alginate with a viscosity of 26MPa·s, 2.0g of squash gum, and 0.1g of propylene glycol alginate, stir, add 100ml of distilled water, and continue stirring at a water temperature of 40°C-60°C until a transparent and uniform solution is formed. Then keep warm and vacuum degas until no bubbles are generated in the solution, and the viscosity of the degassed hot solution is within the range of 8000MPa·s. Use a solid stainless steel mold strip with a length of 200mm and a diameter of 7mm, smear the surface with a small amount of edible oil, then insert the mold strip into the degassed hot mixed glue solution and dip it in glue, pull out the mold strip and rotate it up and down until the glue is uniform Coat it on the stainless steel molding strip, dry it at 60°C, then immerse the dipped molding strip in the mixed solution of 2% calcium lactate and 0.5% citric acid, soak for 8 minutes, take it out with distilled water Rinse, then dry the stainless ...

Embodiment 2

[0052] First, weigh 6.0g of sodium alginate with a viscosity of 50MPa·s, 4.0g of squash gum, and 0.15g of propylene glycol alginate, stir, add 100ml of distilled water, and continue stirring at a water temperature of 40°C-60°C until a transparent and uniform solution is formed. Then heat preservation and vacuum degassing until no bubbles are generated in the solution, and the viscosity of the degassed hot solution is within the range of 12000MPa·s. Use a solid stainless steel mold strip with a length of 200mm and a diameter of 7mm, smear the surface with a small amount of edible oil, then insert the mold strip into the degassed hot mixed glue solution and dip it in glue, pull out the mold strip and rotate it up and down until the glue is uniform Coat it on the stainless steel molding strip, dry it at 60°C, then immerse the dipped molding strip in the mixed solution of 2% calcium lactate and 0.5% citric acid, after soaking for 10 minutes, take it out with distilled water Rinse,...

Embodiment 3

[0055] First, weigh 3.5g of sodium alginate with a viscosity of 83MPa s, 1.5g of squash gum, 0.15g of propylene glycol alginate, and 0.1g of carrageenan, stir, add 100ml of distilled water, and continue stirring at a water temperature of 40°C-60°C until Form a transparent homogeneous solution, then keep warm and vacuum degas until no bubbles are generated in the solution, and the viscosity of the degassed hot solution is within the range of 15600MPa·s. Use a solid stainless steel mold strip with a length of 200mm and a diameter of 7mm, smear the surface with a small amount of edible oil, then insert the mold strip into the degassed hot mixed glue solution and dip it in glue, pull out the mold strip and rotate it up and down until the glue is uniform Coat it on the stainless steel molding strip, dry it at 60°C, then immerse the dipped molding strip in the mixed solution of 2% calcium lactate and 0.5% citric acid, after soaking for 10 minutes, take it out with distilled water Ri...

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Abstract

The invention provides an edible seaweed straw prepared by taking sodium alginate as a main raw material. The seaweed straw is prepared by the following steps: preparing a gel solution from the sodium alginate with the viscosity of 10-100 MPa.s, sesbania gum and a softening agent, uniformly coating a mold with the gel solution, and drying; and immersing the dried mold in an edible acid solution of divalent metal salt, and after immersion, preparing the edible seaweed straw through subsequent conventional straw-making steps. The prepared edible seaweed straw is an edible biological material, and has the characteristics of safety, no plasticizer, no toxic or side effect, 100% full bio-degradation, acid resistance, ultrahigh temperature resistance, low temperature resistance and the like. The tensile strength of the prepared edible seaweed straw ranges from 70 MPa to 100 MPa, the elongation at break ranges from 5% to 8%, and the water solubility is smaller than 3%. The seaweed straw disclosed by the invention has thermal stability, strong mechanical property and barrier property, is an effective substitute of a plastic straw, and has obvious use value and potential consumer market.

Description

technical field [0001] The invention belongs to the technical field of straws, in particular to an edible seaweed straw and a preparation method thereof. [0002] technical background [0003] Plastic pollution is a worldwide problem. On average, about 5 billion plastic straws are used every day on the earth. With the development of society, the extensive use of plastic straws has caused the problem of plasticizers to become more and more prominent. Plasticizers in plastic straws , as the temperature of the drink increases, it will be released into the body at an accelerated rate, forming carcinogens. If consumed for a long time, it can cause abnormalities in the reproductive system, and even cause malformation and cancer. Plastic straws that are difficult to degrade will also cause great harm to the ecological environment. Destruction and pollution threaten human health. The problem of "plasticizers" is also becoming more and more prominent. Governments and local government...

Claims

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Application Information

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IPC IPC(8): C08L5/04C08L5/00C08J7/14A47G21/18
CPCC08L5/04C08J7/14A47G21/18C08L2205/02C08L2203/18C08L2205/025C08L2201/06C08L2201/08C08J2305/04C08L5/00
Inventor 许加超庄晓雯赵芸程腾付晓婷高昕
Owner OCEAN UNIV OF CHINA
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