Effect of modified atmosphere packaging on the quality of minimally processed pineapple cv. 'Smooth Cayenne' fruit

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dc.contributor.author Budu, A.S.
dc.contributor.author Joyce, D.C.
dc.date.accessioned 2019-03-19T09:57:28Z
dc.date.available 2019-03-19T09:57:28Z
dc.date.issued 2005-01
dc.identifier.other https://doi.org/10.1080/14620316.2005.11511916
dc.identifier.uri http://ugspace.ug.edu.gh/handle/123456789/28688
dc.description.abstract The effects of modified atmosphere (MA) conditions on the quality of minimally processed pineapple slices were determined. Commercial pineapple slice packs sealed with 40 μm thick polyester film were kept at 4.5°C for 14 d. The oxygen transmission rate of the film was 23 ml m-2 day -1 atm-1 (at 25°C, 75% RH). In-built atmospheres and the quality of the products were determined. O2 concentrations within the packs stabilised at 2%, while CO2 concentrations increased to 70% by day 14. The high CO2 level suggested an inappropriate lidding film permeability for the product, and hence affected its quality. Three batches of pineapple slices were packed in the laboratory using lidding films with oxygen transmission rate of 75, 2790 or 5000 ml m-2 day-1 atm-1 (at 23°C, 0% RH). Headspace atmospheres from laboratory-packed pineapple slices suggested an optimum equilibrium modified atmosphere of ca. 2% O2 and 15% CO2. Respiration data from the laboratory-prepared packs were pooled together and used to develop a correlation model relating respiration rates to O2 and CO2 concentrations. The model showed a decrease in respiration rate with decreasing O2 and increasing CO2 concentrations. Respiration rate stabilised at 2% O2 and 10% CO2. The high concentrations of CO2 observed in the commercial packs did not fit the range in the respiration model. The model could aid in selection of MA conditions for minimally processed pineapple fruit. en_US
dc.language.iso en en_US
dc.publisher Journal of Horticultural Science and Biotechnology en_US
dc.subject Horticulture en_US
dc.subject Shelf-life en_US
dc.subject Vegetables en_US
dc.title Effect of modified atmosphere packaging on the quality of minimally processed pineapple cv. 'Smooth Cayenne' fruit en_US
dc.type Article en_US


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