Application US20190008146

DEGRADABLE PACKAGING FILM FOR FRUIT AND VEGETABLES
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US20190008146

1. Degradable film for packaging of fruits and vegetables with antimicrobial properties, comprising a polyolefin-based polymer matrix incorporating an active antimicrobial agent of essential oil selected from the group consisting of carvacrol, cinnemaldehyde, cineole, sabinene, thujaplicin or a mixture thereof or incorporating said essential oils selected from the group consisting of: cinnamon oil, oregano oil, eucalyptus oil, nutmeg oil, honokitioi oil or a mixture thereof, and wherein said polyolefin-based polymeric matrix is selected from the group consisting polyethylene (PE), polypropylene (PE), polystyrene (PS) and ethylvinylacetate (EVA), and wherein said polymeric matrix also includes a crosslinking agent selected nano calcium carbonate, calcium carbonate, starch, cellulose or a mixture thereof and wherein the nano calcium carbonate is also a reinforcing agent. (11) (0)

2. The film of claim 1, wherein said microbial active agent of essential oil or essential oil is microencapsulated, (1) (0)

4. The film of claim 1 wherein said polymeric matrix is a matrix of polyethylene, (1) (0)

7. The film of claim 1, wherein said antimicrobial active of essential oil is selected from cinnamaldehyde, carvacrol or a mixture thereof. (2) (0)

10. The film of claim 1, wherein said antimicrobial active of essential oil is oil of oregano. (0)

11. The film of claim 1 wherein the antimicrobial active of essential oil is cinnamon oil. (0)

12. The film of claim 1, wherein said antimicrobial active of essential oil or said essential oil is present in the polymer matrix in an amount between 1-5%. (0)

13. The film of claim 1, wherein said crosslinking agent is present in the polymer matrix in an amount between 3-5%. (0)

14. The film of claim 1, wherein said encapsulating agent is β-cyclodextrin. (0)

15. The film of claim 1, wherein said crosslinking agent is nano calcium carbonate. (0)

16. The film of claim 1, wherein the ratio PE:PE essential microbial agent or agent:essential oil is in the range 99/1 to 95/5 w/w. (2) (0)

21. Process for preparing film of claim 1, comprising: (1) (3)

a) melting a polyolefin selected from polyethylene (PE), polypropylene (PE), polyestyrene (PS) and ethylvinylacetate (EVA), and adding an antimicrobial active agent of essential oils selected from the group consisting of essential oil: carvacrol, cinnemaldehyde, cineol, sabinene, thujapicin or a mixture thereof or incorporates said essential oils selected from the group consisting of: cinnamon oil, oregano oil, eucalyptus oil, nutmeg oil, honokitiol oil or a mixture thereof, mixing until homogeneous, where the mixture is prepared in proportions 99/1 to 95/5% w/w PE:antimicrobial active of essential oil or PE:essential oil,

b) adding nano calcium carbonate together with the antimicrobial active up to 5% by weight relative to the polymer; and

c) preparing the film pressing at 170° C. and 344 KPa and pressure after placing the mixture in a mold, and subsequently cooling to remove the film formed from the mold.

22. The method of claim 21, further characterized in step a) microencapsulating said antimicrobial active of essential oil or essential oil in said β-cyclodextrin. (0)

20. Process for microencapsulating one antimicrobial active of essential oil selected from the group consisting of: carvacrol, cinnemaldehyde, cineol, sabinene, thujaplicin or a mixture thereof or incorporates said essential oil selected from the group consisting of: cinnamon oil, oil oregano oil, eucalyptus oil, nutmeg oil, honokitiol oil or a mixture thereof, β-ciclodextirn, comprising: (0) (2)

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Application US20190008146

DEGRADABLE PACKAGING FILM FOR FRUIT AND VEGETABLES

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