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Influence of Modified Atmosphere Packaging on âStar Rubyâ Grapefruit Phytochemicals
- Chaudhary, Priyanka R., Jayaprakasha, G. K., Porat, Ron, Patil, Bhimanagouda S.
- Journal of agricultural and food chemistry 2015 v.63 no.3 pp. 1020-1028
- Citrus paradisi, acidity, ascorbic acid, bags, beta-carotene, carbon dioxide, flavonoids, fruit quality, fruits, grapefruits, health promotion, humidity, juices, limonoids, lycopene, modified atmosphere packaging, off flavors, oxygen, packaging films, phytopharmaceuticals, plastic film, psoralens, ripening, salads, shelf life, storage time, taste, total soluble solids, vegetables, weight loss
- Modified atmosphere packaging (MAP) can extend the shelf life of salads, vegetables, and fruits by generating a storage environment with low O2, high CO2, and high humidity. The current study investigates the effect of modified atmosphere and humidity generated by two plastic films, microperforated bags (MIPBs) and macroperforated bags (MAPBs), on the levels of phytochemicals present in âStar Rubyâ grapefruits (Citrus paradisi, Macf.) stored for 16 weeks at 10 Â°C. Control fruits were stored without any packaging film. Juice samples were analyzed every 4 weeks for ascorbic acid, carotenoids, limonoids, flavonoids, and furocoumarins and assessed for quality parameters. MAP significantly reduced weight loss compared to control grapefruits. Control fruits had more Î²-carotene, lycopene, and furocoumarin compared with the fruits in MAP. Flavonoid content was highest in fruits stored in MAPB (P < 0.05), while fruits stored in MIPB showed no significant difference in flavonoid content compared to control (P > 0.05). The MAP treatments did not significantly affect ascorbic acid, limonoids, or fruit quality parameters, including total soluble solids, acidity, ripening ratio, decay and disorders, fruit taste, and off-flavors after 16 weeks of storage. These results suggest that MAP can be used to maintain the quality of âStar Rubyâ grapefruit with no detrimental effect on health-promoting phytochemicals.