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A kind of preparation method of sio2/clove essential oil edible starch antibacterial coating film

A technology of clove essential oil and food habits, which is applied in the fields of food antibacterial preservatives and food antibacterial and fresh-keeping packaging materials, and can solve the problems of clove essential oil being volatile and short-term efficacy

Active Publication Date: 2018-12-14
CHANGSHA HUIRUI BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on nano-SiO 2 Physiological inertness and high adsorption, can solve the problem of short efficacy period in practical application due to the volatility of clove essential oil

Method used

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  • A kind of preparation method of sio2/clove essential oil edible starch antibacterial coating film
  • A kind of preparation method of sio2/clove essential oil edible starch antibacterial coating film
  • A kind of preparation method of sio2/clove essential oil edible starch antibacterial coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The specific implementation of the present invention is illustrated by the following examples, but the protection content of the present invention is not limited thereto. Example 1 Nanometer SiO 2 Determination of tensile strength and elongation at break of clove essential oil edible corn starch antibacterial film

[0024] 1 Experimental materials

[0025]

[0026] 2 Experimental methods

[0027] ① Weigh 3g of cornstarch, add it to 100mL of deionized water, stir and mix well, adjust to a starch solution, and stir for 30min in a water bath with a gelatinization temperature of 90°C to make the starch solution gel.

[0028] ②Add 1g of sodium alginate to the above solution as a reinforcing component (soak it in a little deionized water before use to make it a viscous liquid), and 1g of glycerin as a plasticizer. Stir on a magnetic stirrer to mix the mixture evenly at a stirring speed of 120 r / min for 60 min, and perform ultrasonic degassing at a power of 100 Hz for 30...

Embodiment 2

[0038] Example 2 Nano SiO 2 Determination of surface roughness and surface friction coefficient of clove essential oil edible corn starch antibacterial film

[0039] 1 Experimental materials

[0040] nano-SiO 2 / Clove Essential Oil Edible Corn Starch Antibacterial Film

[0041] 2 Experimental methods

[0042] 1) Determination of surface roughness of antibacterial film

[0043] ①The prepared nano-SiO 2 / clove essential oil edible corn starch antibacterial film (specification is 10mm × 10 mm), placed on the workbench of the surface roughness measuring instrument (SRM-1 (D) type), measure the roughness Ra of the film surface.

[0044] ②Adjust the sensor so that it reaches a position parallel to the coating. Check whether the contact between the measured surface and the sensor is good.

[0045] ③Start the measuring instrument, the sensor will slide and move in a straight line at a uniform speed, and stop after moving back and forth according to the set distance.

[0046]...

Embodiment 3

[0052] Example 3 Nano SiO 2 Determination of Water Absorption Rate of Edible Corn Starch Antibacterial Film of Clove Essential Oil

[0053] 1 Experimental materials

[0054] nano-SiO 2 / Clove Essential Oil Edible Corn Starch Antibacterial Film

[0055] 2 Experimental methods

[0056] nano-SiO 2 / Clove essential oil edible corn starch antibacterial film is cut into a square film with a size of 2cm×2cm, put it into a weighing bottle, and dry it in a constant temperature drying oven at 35°C for 2 hours to make the film dry and moisture-free, and accurately weigh it with an analytical balance. When the weight of the diaphragm is recorded as W 0 , and then soaked in distilled water for 2 hours to make the membrane absorb water completely, absorb the surface moisture with filter paper, and weigh it. At this time, the weight of the membrane is recorded as W d , repeat this operation to constant weight, the calculation formula of water absorption Q is as follows:

[0057] Q=(...

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Abstract

The invention belongs to the field of antibacterial food preservatives and antibacterial freshness-keeping food packaging materials, and particularly relates to a preparation method of a SiO2-flos caryophylli essential oil edible starch antibacterial coating. The preparation method comprises the steps that firstly, flos caryophylli essential oil and nano-SiO2 are fully dispersed and mixed, so that the flos caryophylli essential oil is adsorbed to nano-SiO2, and a nano-SiO2-flos caryophylli essential oil compound is obtained; secondly, the nano-SiO2-flos caryophylli essential oil compound is added into a corn starch solution, the mixture is mixed to be uniform in a magnetic stirrer, ultrasonic degassing is conducted, then an edible corn starch antibacterial coating solution is prepared, the coating solution is subjected to film casting and standing and dried, and then the nano-SiO2-flos caryophylli essential oil edible starch antibacterial coating can be obtained. According to the preparation method, the preparation process is good in reproducibility, the flos caryophylli essential oil adsorption rate of nano-SiO2 is high, and the product is good in mechanical property and has the good stability and antibacterial activity.

Description

technical field [0001] The invention belongs to the field of food antibacterial preservatives and food antibacterial and fresh-keeping packaging materials, and specifically relates to a SiO 2 The preparation method of clove essential oil edible corn starch antibacterial coating film. Background technique [0002] Clove essential oil is a transparent colorless or light yellow liquid, which is an aromatic essential oil extracted from the buds and leaves of the clove tree. The main components of clove essential oil are eugenol, β-syringene, acetyl eugenol, methyl n-amyl ketone, methyl salicylate, etc. It is a natural and efficient plant essential oil with good antibacterial, bactericidal and Antioxidant properties. Because of its advantages of safety, greenness and no side effects, it has a good application prospect in the development of natural food additives. [0003] At present, there are many patent applications for clove essential oil in food, cosmetics, medical technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D103/00C09D5/14C09D7/63C09D7/65
CPCC08K5/053C08K9/12C08K2201/011C09D5/14C09D7/63C09D7/65C09D103/00C08L5/04
Inventor 林琳代娅婕崔海英
Owner CHANGSHA HUIRUI BIO TECH