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Antimicrobial compositions for food packaging consisting of salicylaldehyde and carvacrol, thymol or their mixture

An antibacterial composition, a technology of thymol, applied in the field of compositions with antibacterial properties, can solve the problems of not showing broad spectrum and the like

Inactive Publication Date: 2016-09-21
INST TECHCO DEL EMBALAJE TRANSPORTE Y LOGISTICA ITENE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Others are only highly potent against certain foodborne pathogens (such as Gram-negative or Gram-positive bacteria) and thus have not shown sufficient broad-spectrum for general use

Method used

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  • Antimicrobial compositions for food packaging consisting of salicylaldehyde and carvacrol, thymol or their mixture
  • Antimicrobial compositions for food packaging consisting of salicylaldehyde and carvacrol, thymol or their mixture
  • Antimicrobial compositions for food packaging consisting of salicylaldehyde and carvacrol, thymol or their mixture

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Experimental program
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preparation example Construction

[0089] The fifth aspect also constitutes a part of the present invention. The fifth aspect is the preparation method of the active preparation of the second aspect of the present invention, which includes:

[0090] a1) providing a polymer matrix and optionally dissolving said polymer matrix in at least one solvent;

[0091] a2) optionally incorporating at least one plasticizer;

[0092] a3) optionally incorporating at least one anti-fog compound; and

[0093] a4) An antibacterial combination incorporating the first aspect of the invention.

[0094] In a particular embodiment of the fifth aspect of the invention, in step a2), a plasticizer is incorporated.

[0095] In a specific embodiment of the fifth aspect of the present invention, in a2), the at least one plasticizer is t-butyl citrate, polyadipate or glycerin.

[0096] In a specific embodiment, the active agent is an active coating for food packaging, and the solvent used in step a1) of the method is a solvent suitable ...

Embodiment 1

[0122] Example 1. Antimicrobial composition / combination. Synergy detection.

[0123] 1 – Materials and methods

[0124] 1.1 Reference microorganism

[0125] The antibacterial activity of solutions containing carvacrol, thymol and salicylaldehyde was tested against three different reference microorganisms:

[0126] - Gram-negative bacteria - Escherichia coli (strain ATCC 8739)

[0127] - Gram-negative bacteria - Pseudomonas aeruginosa (strain ATCC 27853)

[0128] - Gram-positive bacteria - Staphylococcus aureus (strain ATCC6538)

[0129] From the University of Valencia "Colección de Cultivos Tipo" (CECT). It was collected as a lyophilized culture and revived by regular inoculation on solid medium. After growth, the mother culture was kept frozen.

[0130] Microorganisms were grown an additional 3-4 times prior to analysis by diluting colonies in tryptic soy broth (TSB) and incubating overnight at 36°C.

[0131] 1.2 Preparation of inoculum

[0132] The day before the as...

Embodiment 2

[0169] Example 2. Coating Formulations.

[0170] Coating formulations were prepared as follows:

[0171] Carvacrol (C), thymol (T) and salicylaldehyde (SA) (ratio 3:1:8) were added to a polymer matrix (10% by weight) pre-dissolved in a food contact solvent. If necessary, add plasticizers and / or anti-fog additives. The amount of the mixture of active compounds is 10% by weight relative to the mass of polymer matrix in solution.

[0172] Polymer films containing carvacrol, thymol, and salicylaldehyde were prepared as follows:

[0173] The mixture was coated onto PP / PA polymer substrates at ambient temperature using a laboratory coater (ELCOMETER automatic film coater with sample temperature control and different transverse speeds). After coating, the film was dried at ambient temperature for 2 hours.

[0174] The obtained active films were comparable to conventional films in terms of transparency and gloss.

[0175] The amount of active compound present in the film after tr...

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Abstract

Antimicrobial compositions for organic product packaging The invention relates to an antimicrobial combination for food packaging consisting of: i) salicylaldehyde; ii) carvacrol, thymol or a mixture thereof; and in some embodiments iii) other components and excipients devoid of any antimicrobial activity. The invention relates further to an active coating for food packaging comprising a polymeric matrix and said antimicrobial combination, to a package comprising said active coating, to a process for producing it and to uses thereof.

Description

technical field [0001] The present invention relates to compositions with antimicrobial properties for active packaging of organic products such as food products, especially meat products. Packaging materials endowed with these compositions have various applications, especially in the food industry. Background technique [0002] The food industry is under pressure from consumer associations and regulators for product safety. Higher and higher standards of implementation place stricter demands on manufacturing, distribution and packaging procedures for all types of food. This is especially important for meat products, which can cause dangerous food poisoning if not handled and packaged properly. [0003] To minimize the risk of food poisoning from microbial contamination and to extend the shelf life of meat products, many strategies can be implemented. One of the most widespread strategies is the use of freshness-enhancing products and compositions in packaging processes a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/08A01N35/04B65D81/28
CPCA01N31/08A01N35/04B65D81/28A01N25/10A01N25/34
Inventor A·G·盖雷特·多明戈L·普拉特斯·加西亚F·M·莫内德罗·普列托J·M·贝尔姆德斯·塞尔达纳M·T·卡尔沃·比拉诺瓦M·I·拉莱·列多
Owner INST TECHCO DEL EMBALAJE TRANSPORTE Y LOGISTICA ITENE