Search

CN-121970802-A - Metagen-loaded hydrogel water-absorbing antibacterial liner, preparation method and application

CN121970802ACN 121970802 ACN121970802 ACN 121970802ACN-121970802-A

Abstract

The invention discloses a metagen-loaded hydrogel water-absorbing antibacterial liner, a preparation method and application thereof, wherein the metagen-loaded hydrogel water-absorbing antibacterial liner comprises the steps of mixing a gelatin solution and a dialdehyde starch solution to obtain a Ge-Ds solution; mixing the Postbio YDFF-3 solution with the Ge-Ds-Bc solution, heating and stirring, cooling the mixture to room temperature, pouring the mixture into a culture dish, moving the mixture to the temperature of minus 20 ℃ for 24 hours, and freeze-drying to obtain the hydrogel water-absorbing antibacterial liner loaded with metazoan. The invention uses three substances of gelatin, dialdehyde starch and bacterial cellulose as matrix substances, and adds metaplasia postbioYDFF-3 as antibacterial substances into the matrix substances to prepare the water-absorbing antibacterial liner for refrigerating and preserving grass carp, which is used for absorbing blood water or exudates of grass carp, reducing water required by microorganism reproduction, and inhibiting the growth of spoilage microorganisms in grass carp by utilizing the antibacterial effect of metaplasia postbioYDFF-3, thereby prolonging the preservation period of grass carp.

Inventors

  • Zang Jinhong
  • Qiao Enpu
  • ZHANG ZHECHENG
  • PENG CHUANTAO
  • LI ZHAOJIE

Assignees

  • 青岛元达生物科技有限公司

Dates

Publication Date
20260505
Application Date
20251209

Claims (9)

  1. 1. A preparation method of a metachromatic hydrogel water-absorbing antibacterial liner is characterized by comprising the steps of, Mixing gelatin solution and dialdehyde starch solution to obtain Ge-Ds solution; Mixing the bacterial cellulose solution with the Ge-Ds solution to prepare a Ge-Ds-Bc solution; mixing the metazoan Postbio YDFF-3 solution with the Ge-Ds-Bc solution, heating and stirring, cooling the mixture to room temperature, pouring the mixture into a culture dish, transferring to a temperature of minus 20 ℃ for preservation for 24 hours, and freeze-drying to obtain the metazoan-loaded hydrogel water-absorbing antibacterial liner.
  2. 2. The method of claim 1, wherein the gelatin solution has a concentration of 7wt%.
  3. 3. The process according to claim 1 or 2, wherein the dialdehyde starch is present in a concentration of 6wt%.
  4. 4. The method of claim 3, wherein the bacterial cellulose solution has a concentration of 2wt%.
  5. 5. The method of claim 4, wherein the volume ratio of the gelatin solution, the dialdehyde starch solution and the bacterial cellulose solution is 3:1:0.5.
  6. 6. The method of claim 1 or 5, wherein the volume ratio of the Postbio YDFF-3 solution to the Ge-Ds-Bc solution is 1:1.
  7. 7. The method of claim 6, wherein the Postbio YDFF-3 solution has a concentration of 7wt%.
  8. 8. The metachromatic hydrogel water-absorbing antibacterial liner prepared by the preparation method of any one of claims 1 to 7.
  9. 9. The use of the hydrogel water-absorbing bacteriostatic liner according to claim 8 in preservation of aquatic products.

Description

Metagen-loaded hydrogel water-absorbing antibacterial liner, preparation method and application Technical Field The invention belongs to the technical field of biological materials, and particularly relates to a metazoan-loaded hydrogel water-absorbing antibacterial liner, a preparation method and application thereof. Background The pad is usually placed between tray package and aquatic products, and tissue fluid such as blood in fresh aquatic products organism oozes to the product surface after, can in time be absorbed by the pad to reduce the exudate, reduce the required moisture of microorganism growth and reproduction, and then play antibacterial effect. At present, a disposable water absorbing liner is mostly adopted to absorb redundant blood and moisture so as to prolong the preservation time of aquatic products. However, such liners are mainly made of plastic such as PE film, PET film, non-woven fabric, etc., which contains microplastic and plasticizer to contaminate food possibly by direct contact with aquatic products. Meanwhile, the liner is a disposable product, has poor natural degradation capability and is unfavorable for green development. Therefore, development of an environment-friendly gasket is urgently required. The gelatin (Ge) -dialdehyde starch (Ds) -bacterial cellulose (Bc) liner is made of safe materials, does not pollute aquatic products and reduce the quality of the aquatic products, and meanwhile, compared with the traditional disposable liner, the hydrogel liner has the characteristics of simple preparation process, short natural degradation period and the like, and is an excellent substitute for the traditional disposable liner. If the water absorbing pad only has the function of absorbing exudates, but can not inhibit the growth and reproduction of spoilage microorganisms of aquatic products, the fresh-keeping performance of the water absorbing pad is very limited. The liner has the characteristics of porosity, high specific surface area and the like, and can introduce antibacterial substances into the liner in a spraying, mixing and other modes, so that the novel fresh-keeping liner with the absorption and antibacterial properties can be prepared, the problem of effusion of fresh aquatic products can be effectively solved, the growth of spoilage microorganisms of the aquatic products can be inhibited, and the fresh-keeping quality of the aquatic products is improved. The biological preservative is nontoxic, harmless and degradable, and is widely applied to the field of preservation of fresh foods such as aquatic products and the like. Although some biological antistaling agents, such as plant essential oil, have good antibacterial and antioxidant properties, the difficult problems of difficult extraction, low product yield, high cost and the like limit the application of the biological antistaling agent in a liner. The metazoan postbioYDFF-3 is a product obtained by inactivating bacterial fermentation liquid, has good antibacterial capability, and is simple to prepare and low in cost. However, there is no report of directly adding metazoan postbioYDFF-3 to gelatin (Ge) -dialdehyde starch (Ds) -bacterial cellulose (Bc) liners to form liners with high water absorption and antibacterial properties. Disclosure of Invention This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. The present invention has been made in view of the above and/or problems occurring in the prior art. Therefore, the invention aims to overcome the defects in the prior art and provide a preparation method of a metachromatic hydrogel water-absorbing antibacterial liner. In order to solve the technical problems, the invention provides a preparation method of a metacarpal-loaded hydrogel water-absorbing antibacterial liner, which comprises the following steps of, Mixing gelatin solution and dialdehyde starch solution to obtain Ge-Ds solution; Mixing the bacterial cellulose solution with the Ge-Ds solution to prepare a Ge-Ds-Bc solution; Mixing Postbio YDFF-3 solution with Ge-Ds-Bc solution, heating and stirring, cooling the mixture to room temperature, pouring into a culture dish, transferring to-20deg.C, preserving for 24 hr, and freeze drying to obtain the final product hydrogel water absorption antibacterial liner. As a preferred embodiment of the production method of the present invention, the gelatin solution has a concentration of 7% by weight. As a preferred embodiment of the preparation process according to the invention, the dialdehyde starch has a concentration of 6% by weight. As a preferred embodiment of the production method of the present invention, the concentration of the bacterial cellulose solution is 2% by weight. As a preferred embodiment of the preparation method, the volume ratio of the gelatin solution, the dialdehyde starch solution and the bacterial cellulose solution is 3:1:0.5. As a preferable scheme of the