Degradable packaging film for fruit and vegetables

A technology for degrading film and fruit, which is applied in the fields of packaging fruit/vegetables, transportation and packaging, sustainable packaging, etc.

Inactive Publication Date: 2018-08-31
UNIV DE SANTIAGO DE CHILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These bags have properties such as oxygen degradability, but the additives used as prodegradants in their preparation have the disadvantage of requiring the presence of light to make the polymer degradable to the environment
Therefore, there are enormous challenges to be addressed in the field of degradability of polymer-based membranes

Method used

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  • Degradable packaging film for fruit and vegetables
  • Degradable packaging film for fruit and vegetables
  • Degradable packaging film for fruit and vegetables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] 1. Preparation and results of β-cyclodextrin / active ingredient microcapsules

[0037]Co-precipitation method was used for the preparation of β-cyclodextrin / essential oil or β-cyclodextrin / essential oil microcapsules of active agent or antimicrobial agent. A certain amount of β-cyclodextrin was weighed and dissolved in a 2:1 water / ethanol solution under continuous stirring in a reactor at a temperature of 55 °C, and the active agent in 10% v / v ethanol was prepared in parallel. solution in. Once the β-cyclodextrin is dissolved, the active agent is slowly added to the solution and mixed for 30 minutes at 55°C. Then, the temperature was lowered by 25°C and left under stirring for 4 hours. The final solution was refrigerated at 7 °C for 12 h, and finally the cryoprecipitate was recovered by vacuum filtration and dried in an oven for 24 h. [19-21]

[0038] Determination of Encapsulation Efficiency Performance

[0039] Encapsulation efficiency was quantified by UV spe...

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Abstract

The present invention relates to a degradable film for packaging fruit and vegetables, which comprises a polyolefin-based polymer matrix that incorporates an antimicrobial (biocidal or fungicidal) active ingredient of an essential oil, selected from the group consisting of: carvacrol, cinnamaldehyde, cineol, sabinene, thujaplicin, or a mixture of same, or incorporates the essential oil itself, selected from the group consisting of: cinnamon oil, oregano oil, eucalyptus oil, nutmeg oil, hinoki oil, or a mixture of same. The polymer matrix further comprises degrading agents. The invention also relates to a method for microencapsulating the antifungal or antibacterial active ingredients of the essential oil or the essential oil itself, and to a method for preparing the film.

Description

technical field [0001] The present invention relates to a degradable film for packaging fruit and vegetables comprising a polyolefin-based polymer matrix incorporating antimicrobial actives (biocides or fungicides) of essential oils , the antimicrobial active agent of the essential oil is selected from the group consisting of carvacrol, cinnamaldehyde, cineol (cineol), sabinene, saponin, or a mixture thereof, or is incorporated into the essential oil selected from the group consisting of cinnamon oil, oregano oil , eucalyptus oil, nutmeg oil, honokitiol oil, or a mixture thereof, and further comprising a cross-linking agent; a microencapsulation process for said antifungal and antibacterial active agent or said essential oil; and for preparing said film Methods. [0002] Preferably, the film is a smart film for packaging fruit and vegetables, said film being based on a film selected from the group consisting of polyethylene (PE), polypropylene (PE), polystyrene (PS) and ethyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/28A01N25/34B65B25/02B65B25/04B65D65/46
CPCA01N25/28B65B25/02B65B25/04B65D65/46A01N25/10A01N25/34A01N27/00A01N31/04A01N31/08A01N31/16A01N43/90A01N65/08A01N65/22A01N65/24A01N65/28Y02W90/10B65D81/28B65D85/34C08J5/18C08J2323/06C08J2405/16
Inventor 保拉·安德烈亚·扎帕塔拉米雷斯毛里西奥·埃丹松·亚涅斯桑切斯
Owner UNIV DE SANTIAGO DE CHILE
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