The present invention belongs to the field of active polymer materials. Specifically, it relates to an active polystyrene film that has antimicrobial or antioxidant activity and the method of production of said film. It also refers to wrappers, packages and slice separators (interleavers) that comprise said film.

This invention is, in general, related to the technological field of packaging of vegetable products, such as whole fresh fruits and vegetables that tend to have certain surface microbial load. Specifically, this invention relates to a new cardboard packaging which is characterised by having an antimicrobial active coating based on a polymeric compound in combination with essential oils forming inclusion complexes with cyclodextrins. Vapours of essential oils are emitted from the cardboard as sufficiently high relative humidities are reached in the vicinity of this coating which is next to the packed product, and these vapours have an antimicrobial action against fungi, yeasts and bacteria, which both spoil product quality and are pathogenic for consumers. This new packaging significantly achieves increasing food safety and the shelf life of foods packed therein.

This invention is, in general, related to the technological field of packaging of vegetable products, such as whole fresh fruits and vegetables that tend to have certain surface microbial load. Specifically, this invention relates to a new cardboard packaging which is characterised by having an antimicrobial active coating based on a polymeric compound in combination with essential oils forming inclusion complexes with cyclodextrins. Vapours of essential oils are emitted from the cardboard as sufficiently high relative humidities are reached in the vicinity of this coating which is next to the packed product, and these vapours have an antimicrobial action against fungi, yeasts and bacteria, which both spoil product quality and are pathogenic for consumers. This new packaging significantly achieves increasing food safety and the shelf life of foods packed therein.

The disclosed articles, apparatus, methods, and compositions provide for the integration of different and environmentally-friendly processes for extraction, stabilization, and formulation of active compounds with health and/or other benefits from lignocellulosic by-products of food processes. The active compounds can include one or more of polyphenols, flavonoids, o-diphenols, anthocyanins, and phenolic acids. A high-pressure, high-temperature extraction process provides a means to recover a substantial portion of the active compounds from a biomass feedstock. The corresponding extract can be encapsulated, which provides a convenient form for stabilization and delivery of the active compounds into a final product, for example an active packaging material or corresponding actively packaged food item.

The disclosed articles, apparatus, methods, and compositions provide for the integration of different and environmentally-friendly processes for extraction, stabilization, and formulation of active compounds with health and/or other benefits from lignocellulosic by-products of food processes. The active compounds can include one or more of polyphenols, flavonoids, o-diphenols, anthocyanins, and phenolic acids. A high-pressure, high-temperature extraction process provides a means to recover a substantial portion of the active compounds from a biomass feedstock. The corresponding extract can be encapsulated, which provides a convenient form for stabilization and delivery of the active compounds into a final product, for example an active packaging material or corresponding actively packaged food item.

The presence of pathogens in fresh food is the cause of food loss and the spread of diseases and death in humans. Packaging disclosed herein includes a semi-rigid or flexible package for fresh fruits and vegetables, which incorporates an antipathogenic barrier using carbon allotrope ink and air filters. An embodiment of a packaging container is formed of a body and a paperboard lid, the body having a geometric pattern printed in its interior with antipathogenic ink. The container body includes a bottom with a hollow window, covered by two or more layers of microperforated polymeric films that have an air filtration function. A version of a semi-rigid cellulose lid incorporates a hollow window, covered by two or more microperforated polymeric films. Further disclosed is a portion of the container made of cellulose material and printed with antipathogenic ink.

Disclosed are anti-melanosic releasing agents, anti-melanosic systems, and methods of preventing or reducing melanosis in crustaceans, particularly shrimp. Melanosis in shrimp is prevented or reduced by exposing shrimp to the anti-melanosic system containing the anti-melanosic releasing agent, e.g., green tea.

Disclosed are anti-melanosic releasing agents, anti-melanosic systems, and methods of preventing or reducing melanosis in crustaceans, particularly shrimp. Melanosis in shrimp is prevented or reduced by exposing shrimp to the anti-melanosic system containing the anti-melanosic releasing agent, e.g., green tea.

The disclosed articles, apparatus, methods, and compositions provide for the integration of different and environmentally-friendly processes for extraction, stabilization, and formulation of active compounds with health and/or other benefits from lignocellulosic by-products of food processes. The active compounds can include one or more of polyphenols, flavonoids, o-diphenols, anthocyanins, and phenolic acids. A high-pressure, high-temperature extraction process provides a means to recover a substantial portion of the active compounds from a biomass feedstock. The corresponding extract can be encapsulated, which provides a convenient form for stabilization and delivery of the active compounds into a final product, for example an active packaging material or corresponding actively packaged food item.

The disclosed articles, apparatus, methods, and compositions provide for the integration of different and environmentally-friendly processes for extraction, stabilization, and formulation of active compounds with health and/or other benefits from lignocellulosic by-products of food processes. The active compounds can include one or more of polyphenols, flavonoids, o-diphenols, anthocyanins, and phenolic acids. A high-pressure, high-temperature extraction process provides a means to recover a substantial portion of the active compounds from a biomass feedstock. The corresponding extract can be encapsulated, which provides a convenient form for stabilization and delivery of the active compounds into a final product, for example an active packaging material or corresponding actively packaged food item.