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Method for preparing edible film with antibacterial activity using fucoidan and polyphenol

A technology of fucoidan and antibacterial activity, which is applied in the field of edible films, can solve the problems of limiting the application field and application value of fucoidan, and achieve the effect of excellent application value, easy availability of raw materials, and mild reaction conditions

Active Publication Date: 2019-05-07
WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no reports of fucoidan as a matrix to prepare edible films with antibacterial activity at home and abroad, so the application field and application value of fucoidan are limited, and it is necessary to improve this

Method used

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  • Method for preparing edible film with antibacterial activity using fucoidan and polyphenol
  • Method for preparing edible film with antibacterial activity using fucoidan and polyphenol
  • Method for preparing edible film with antibacterial activity using fucoidan and polyphenol

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Embodiment Construction

[0045] The present invention is specifically described below by the embodiment, only for further illustrating the present invention, can not be interpreted as the limitation of protection scope of the present invention, the technical engineer of this field can make some non-essential improvements and improvements to the present invention according to the content of the above-mentioned invention Adjustment.

[0046] Such as figure 1 — Figure 15 As shown, a method for preparing an edible packaging film with antibacterial activity from fucoidan and polyphenols comprises the following steps:

[0047] 1. Preparation of fucoidan / polyphenol membrane solution; it is known from the volume test of the plate membrane, weigh 0.25g of fucoidan and add it into distilled water to make 25mL of a liquid with a concentration of 0.01g / mL (i.e. 1%), add 0.02-0.16mL (ie 0.08-0.64%) glycerin, add 0.04-0.20mL (ie 0.16-0.80%) Tween-80, 0.03-0.11g (0.12-0.44%) polyphenols (tea polyphenols) at tempe...

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Abstract

The invention discloses a method for preparing an edible film with antibacterial activity by using fucoidan and polyphenol. According to the technical scheme, the method comprises the following steps: (1) preparing a fucoidan and polyphenol composite membrane solution; (2) removing air bubbles in the fucoidan and polyphenol composite membrane solution; (3) preparing a semi-finished film: pouring the fucoidan and polyphenol composite membrane solution in a film forming die, and solidifying to form the semi-finished film; (4) drying the semi-finished film, and removing moisture; (5) carrying out cross-linking fixation; (6) drying and forming. The method disclosed by the invention has the advantages of low energy consumption, simpleness in operation, environment protection and the like, the application field of the fucoidan is widened, and the application value of the fucoidan is increased.

Description

technical field [0001] The invention belongs to the field of edible films, in particular to a method for preparing edible films with antibacterial activity by using fucoidan and polyphenols. Background technique [0002] Microorganisms around food and food oxidation are important reasons for food deterioration. Hard-to-degrade packaging materials such as polyethylene and polypropylene are harmful to the environment and packaged food. Edible antibacterial films are made of natural edible substances (such as protein) , polysaccharides, lipids, etc.) as raw materials, add edible plasticizers, cross-linking agents, etc., and form a film with a porous network structure through intermolecular interactions, which can prevent the migration of gases, water vapor, and solutes. Maintain food quality, prolong the shelf life of food, and the edible film is green, biodegradable, non-toxic and harmless, and has nutritional value itself, which has attracted people's attention. [0003] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08J3/24C08L5/04C08L71/02C08K5/053C08K5/1545
CPCC08J3/24C08J5/18C08J2305/04C08J2471/02C08L5/04C08L2203/16C08L71/02C08K5/053C08K5/1545
Inventor 吴祥庭
Owner WENZHOU UNIV