Antimicrobial mixtures of an essential oil derived bactericide and an essential oil derived fungicide which extend the shelf-life of perishable agricultural commodities
AssigneeVerséa Holdings Inc.
InventorsPerry Lidster, Eduardo Cacace, Pascal Delaquis
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Abstract
The disclosure provides an antimicrobial mixture of at least two volatile compounds derived from essential oils, at least one of which is a bactericide selected from cinnamaldehyde, diacetyl, and acetic acid with another being a fungicide selected from allyl isothiocyanate, hexanal, thymol, and 2-nonane. The antimicrobial mixture inhibits both bacterial and fungal pathogens that negatively impact the shelf-life of perishable agricultural commodities, and at concentrations sufficiently low to avoid phytotoxic effects to agricultural commodities held in closed shipping and storage systems.
Claims17
A system for prolonging the shelf life of perishable goods, comprising:
- a hermetically sealed container having an interior compartment for storage of perishable goods,
- a flow of gas minimized between the interior compartment and an environment outside of the container,
- the hermetically sealed container containing a perishable good in its interior compartment, the hermetically sealed container further containing a single antimicrobial binary mixture of volatile compounds derived from essential oils that transition from liquid to vapor phase in its interior compartment,
- the single antimicrobial binary mixture of volatile compounds reaching and sustaining a vapor phase concentration within the interior compartment for a period of time sufficient to kill and inhibit growth of both bacteria and fungi in the interior compartment, the single antimicrobial binary mixture of volatile compounds selected to achieve a lethality and an inhibition of at least one fungal species and at least one bacterial species, the single binary mixture selected from one of:
- hexanal/cinnamaldehyde having vapor phase concentrations of 2-25 ppm for hexanal and 20-210 ppm for cinnamaldehyde;
- hexanal/acetic acid having vapor phase concentrations of 2-25 ppm for hexanal and 2-36 ppm for acetic acid;
- hexanal/diacetyl having vapor phase concentrations of 2-25 ppm for hexanal and 1.0-22 ppm for diacetyl;
- 2-nonanone/cinnamaldehyde having vapor phase concentrations of 10-200 ppm for 2-nonanone and 20-210 ppm for cinnamaldehyde;
- 2-nonanone/acetic acid having vapor phase concentrations of 10-200 ppm for 2-nonanone and 2-36 ppm for acetic acid;
- allyl isothiocyanate/acetic acid having vapor phase concentrations of 0.2-2.0 ppm for allyl isothiocyanate and 2-36 ppm for acetic acid;
- allyl isothiocyanate/diacetyl having vapor phase concentrations of 0.2-2.0 ppm for allyl isothiocyanate and 1.0-22 ppm for diacetyl;
- thymol/acetic acid having vapor phase concentrations of 3-30 ppm for thymol and 2-36 ppm for acetic acid;
- or
- thymol/cinnamaldehyde having vapor phase concentrations of 3-30 ppm for thymol and 20-210 ppm for cinnamaldehyde;
- wherein the perishable goods comprise fruits, vegetables, cut flowers, and combinations thereof.
Dependencies are inferred from the claim text.