Method of packaging food

Patent metadata

Field	Value
Publication number	US-9763439-B2
Application number	US-201615243648-A
Country	US
Kind code	B2
Filing date	Aug 22, 2016
Priority date	Apr 2, 2012
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

The invention proposes a container further extending the shelf life of foods, particularly berries, by including an active agent having antifungal capability into the container surface so that when the fruit is packaged inside the container it is permanently exerted an antifungal effect over the surface, which is the place on the longer determinants occurs, but also contributing to preserve the general environment. Also it proposes a preparation process and its use.

First claim

The invention claimed is:

1. A process for making a package of polyethylene terephtbalate (PET) with an antifungal agent incorporated into its surface, the method comprising:
a) adding to a mixture of silicone in water, the antifungal agent in an amount less than or equal to 20% w/v and thereby forming a homogeneous solution as bath; and
b) immersing in said bath extruded PET sheets and subsequently performing the steps of thermoforming and producing the final package.

2. The process of claim 1 , wherein less than 15% w/v of the antifungal agent is added in the silicone solution in water.

3. The process of claim 2 , wherein less than 10% w/v of the antifungal agent is added in the silicone solution in water.

4. The process of claim 1 , wherein the extruded PET sheets, are immersed in a bath of silicone in water containing 18-20% w/v of antifungal.

5. The process of claim 1 , wherein the antifungal is an antifungal against Botrytis cinerea.

6. The process of claim 1 , wherein the antifungal agent is potassium sorbate.

7. The process of claim 1 , wherein the extruded PET sheets are sheets of recycled PET.

Assignees

• Univ Santiago Chile

Inventors

• Junqueira Conceicao Gonsalves Maria Paula
• Tapia Ulloa Andrea Marcarena

Classifications

• B65D85/34

  for fruit, e.g. apples, oranges or tomatoes · CPC title

• B65D81/28

  Applications of food preservatives, fungicides, pesticides or animal repellants · CPC title

• B29K2067/003

  PET, i.e. poylethylene terephthalate · CPC title

• C09D183/04

  Polysiloxanes · CPC title

• A01N25/10 Primary

  Macromolecular compounds · CPC title