| 摘要 |
PCT No. PCT/AU92/00080 Sec. 371 Date Nov. 8, 1993 Sec. 102(e) Date Nov. 8, 1993 PCT Filed Feb. 27, 1992 PCT Pub. No. WO92/15499 PCT Pub. Date Sep. 17, 1992.Packaging apparatus and method, for use in controlled atmosphere packaging of horticultural produce in controlled permeability film. A valve apparatus mounted on or in a packaging film including a temperature sensitive sensor formed from a bimetallic or shape-memory material (2), or a chemical sensitive sensor formed from a swellable polymer, to actuate the valve member (pin or plug) (1) on, or in communication with the sensor. In use, after sealing the produce within the packaging film, the valve apparatus opens the packaging film in response to a temperature change of predetermined magnitude to allow oxygen flow for extension of storage life or fumigation of the produce. |
