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Lae and plant essential oil compound antibacterial agent and degradable packaging film preparation method

A compound antibacterial agent and plant essential oil technology, which is applied in botany equipment and methods, plant growth regulators, fungicides, etc., can solve the problem of low thermal stability of antibacterial film, improve antibacterial fresh-keeping ability, improve antibacterial effect, The effect of improving the safety of use

Active Publication Date: 2022-03-25
天津塑醒材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the limitations of plant essential oils and LAE in the actual application process of existing food preservation, and the problem of low thermal stability when extrusion blow molding is used to prepare antibacterial films, and propose a method using hydroxypropyl-β- Cyclodextrin has a unique cavity structure that is hydrophilic on the outside and hydrophobic on the inside and its co-emulsification with LAE embedding and emulsifying LAE and plant essential oils, improving the thermal stability and utilization of the two antibacterial materials, and improving both The impact on food odor, and then mixed with degradable materials with low thermal processing temperature by extrusion thermal processing, and using the synergistic antibacterial effect of plant essential oils and LAE, a safe and efficient composite antibacterial agent is obtained. Preparation method of antibacterial packaging film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Dissolve hydroxypropyl-β-cyclodextrin powder (3% w / v) in 100 mL of pure water at room temperature, then add N α - After the solid powder of lauroyl-L-arginine ethyl ester hydrochloride (1% w / v) is fully dissolved, add cinnamon essential oil (3% v / v) drop by drop, and continue to stir for 2 h with a high-speed disperser at 18000 r / min for 5 min, and finally at 450 W power, ultrasonic treatment for 10 min to obtain hydroxypropyl-β-cyclodextrin / cinnamon essential oil / N α -Lauroyl-L-arginine ethyl ester hydrochloride compound antibacterial agent.

[0020] The resulting composite antibacterial agent was spray-dried, the inlet temperature of the spray drier was 150°C, the outlet temperature was up to 100°C, the rotational speed of the atomizer was 30 Hz, and the feed rate was 25 r / min to obtain a composite antibacterial agent solid powder .

[0021] Put the starch in a high-speed mixer, add 5% solid powder of compound antibacterial agent, 1% stearic acid, and 20% glycerin ...

Embodiment 2

[0025] Dissolve hydroxypropyl-β-cyclodextrin powder (5% w / v) in 100 mL of pure water at room temperature, then add N α - After the solid powder of lauroyl-L-arginine ethyl ester hydrochloride (2% w / v) is fully dissolved, add clove essential oil (4% v / v) drop by drop, continue to stir for 2 h, and use a high-speed disperser at 18000 r / min for 5 min, and finally at 450 W power, ultrasonic treatment for 10 min to obtain hydroxypropyl-β-cyclodextrin / clove essential oil / N α -Lauroyl-L-arginine ethyl ester hydrochloride compound antibacterial agent.

[0026] The resulting composite antibacterial agent was spray-dried, the inlet temperature of the spray dryer was 150°C, the outlet temperature was up to 100°C, the rotational speed of the atomizer was 25 Hz, and the feed rate was 25 r / min to obtain a composite antibacterial agent solid powder .

[0027] Place PLA (polylactic acid) and PHB (poly-β-hydroxybutyric acid) in a high-speed mixer at a certain mass ratio (3:1), then add 7% c...

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PUM

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Abstract

The present invention proposes a preparation method of LAE and plant essential oil compound antibacterial agent and degradable antibacterial packaging film, utilizes LAE and hydroxypropyl-β-cyclodextrin synergistic emulsification, and utilizes hydroxypropyl-β-cyclodextrin The compound antibacterial agent is prepared by embedding LAE and plant essential oil in the fine cavity structure, and the compound antibacterial agent is mixed with a degradable material with a lower thermal processing temperature through extrusion thermal processing to complete the degradable antibacterial packaging film. The present invention utilizes surfactant LAE and hydroxypropyl-β-cyclodextrin synergistic emulsification to enhance the effect of embedding emulsification, utilizes the cavity structure to protect LAE and plant essential oils to improve the thermal stability of the compound antibacterial agent, and is compatible with thermal processing The combination of degradable materials with low temperature further improves the utilization and antibacterial effect, reduces its interaction with other substances in food, has a synergistic antibacterial effect, can reduce the amount of each antibacterial agent added, and improves the safety of use and antibacterial freshness.

Description

technical field [0001] What the present invention relates to is the preparation method of antibacterial material, particularly a kind of N α - Lauroyl-L-arginine ethyl ester hydrochloride and plant essential oil composite antibacterial and degradable antibacterial packaging film and a preparation method thereof, belonging to the technical field of food preservation. Background technique [0002] Plant essential oils are metabolites with aromatic odor produced by plants, insoluble in water but easily soluble in organic solvents such as ethanol. As a natural extract, plant essential oil has broad-spectrum antibacterial properties, but it has disadvantages such as volatile, easy to oxidize, strong smell, and large amount of use during use. N α - Lauroyl-L-arginine ethyl ester hydrochloride (N α -lauroyl-L-arginateethylenester, LAE for short) is a cationic surfactant, which has high inhibitory activity against a variety of food-borne pathogens, but LAE is easy to interact wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K5/00C08K5/31C08J5/18C08L3/02C08L67/04C08K5/09C08K5/053A01N25/30A01N25/26A01N65/24A01N65/28A01N47/44A01P3/00A01P1/00
CPCC08K9/10C08K5/0058C08K5/31C08J5/18A01N25/30A01N25/26A01N65/24A01N65/28A01N47/44A01N65/00C08J2303/02C08J2367/04C08J2467/04C08K5/09C08K5/053
Inventor 汤晓智徐瑶瑶高成成孟令晗侯克洪
Owner 天津塑醒材料科技有限公司
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