AI Article Synopsis
- The study assessed how different doses of UV-C light affect the decay and structural integrity of blueberry fruit during storage.
- The highest UV-C dose significantly delayed fungal infection and decay, allowing the fruit to stay fresh longer.
- While UV-C treatment improved some biomechanical properties after 15 days, it also led to increased weight loss, suggesting a trade-off in postharvest quality.
Article Abstract
The effect of different doses of UV-C light (5.3, 8.3 and 11.4 kJ/m) on native mycobiota and incidence, micro and ultrastructure, biomechanical properties and weight loss of blueberry fruit cv. O'Neal during 20 days of storage at 8 ± 1 °C was evaluated. Decay incidence was significantly reduced by all UV-C light doses for both, native mycobiota and inoculated . The highest UV-C dose studied (11.4 kJ/m) was the most effective indelaying the onset of fungal and infection (6 and 4 days, respectively). UV-C irradiation caused some distinctive changes in fruit structure characterized by redistribution, alteration and partial removal of epicuticular waxes, reinforcement of epicarp cell walls, and modifications in the cuticle. Biomechanical parameters were not affected by UV-C treatments excepting at day 15 where irradiated samples showed higher values of rupture force (F) and deformation (D). Structure changes partially explained the significant increase in weight loss, F and D values in irradiated fruit after 15 days of storage. UV-C irradiation could be an alternative for delaying and reducing fungal infection. However, postharvest shelf-life of irradiated blueberries could be limited by the negative effect on weight loss.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8214096 | PMC |
| http://dx.doi.org/10.1016/j.heliyon.2021.e07190 | DOI Listing |
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