The University of British Columbia

Chiu H Wu

William Duncan Powrie

Juhani I Oikarinen

Bo Matstoms

Hannu K Tykkaelae

This invention relates to a novel method of preserving fresh cut fruit for a prolonged period of time. More particularly, this invention is directed to a novel method of preparing and preserving fresh, vitaminized flavored or unflavored cut apple pieces to be stored in containers for extended periods of time of up to 6 weeks at refrigerated temperatures with the retention of acceptable naturally-occurring and adjunctive flavors, crisp texture and original whiteness or yellowness, being free of enzymatic browning. A method of preserving fresh apple pieces comprising: (a) sanitizing the surfaces of whole apples with a suitable sanitization agent; (b) coring and cutting the peeled or unpeeled apples into pieces; (c) immersing the apple pieces in an acid solution containing between about 5 to about 15% weight ascorbic acid; (d) removing excess solution from the surfaces of the apple pieces; (e) depositing a flavorant on the surfaces of the apple pieces in a container or placing previously-flavored apple pieces in a container; and (f) quick-chilling the apple pieces and storing the container of apple pieces at a temperature between about 0.degree. C. and about 10.degree. C.

Preparation and preservation of fresh, vitaminized, flavored and

Lined and coated corrugated paperboard package systems for modified

This invention relates to novel package systems for refrigerated modified atmosphere packaging of fresh fruit, vegetables and cut flowers. More particularly, this invention relates to the design, construction, closure, sealing and use of gas-permeable corrugated paperboard package systems for prolonging the storage life of fresh fruits, vegetables and cut flowers under modified atmosphere in the headspaces of the closed package system. A corrugated gas permeable paperboard comprising: (a) a first layer of Kraft paper; (b) a layer of polymer having a gas permeability which permits gas to be transmitted through the polymeric film at prescribed levels; (c) a second layer of Kraft paper, said first and second layers of Kraft paper sandwiching the polymer between them; (d) a corrugated fluting; and (e) a third layer of Kraft paper affixed to the corrugated fluting.

Corrugated paperboard package systems with gas-permeable plastic

This invention pertains to a novel process for preserving the quality attributes and ascorbic acid content of fresh fruit juices and fruit juice blends. The process involves sanitizing the outer surface of a fruit, extracting the juice from the edible portion of the fruit, gasifying the juice with an oxygen-containing, carbon dioxide-containing gas mixture, filling a high gas-barrier container with the juice; hermetically sealing the container and rapidly cooling the juice in the container. Alternatively, the extracted juice may be filled into the high gas barrier container and then gasified prior to hermetically sealing the container.

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Vancouver, Canada

Chiu H Wu