Exposure to ozone reduces postharvest quality loss in red and green chilli peppers
2016
Glowacz, Marcin | Rees, Deborah
The effect of continuous exposure to ozone at 0.45, 0.9 and 2μmolmol−1 on quality changes during the storage of red and green chilli peppers at 10°C was investigated. Ozone at 0.45 and 0.9μmolmol−1 reduced disease incidence in red peppers, with no further benefits at 2μmolmol−1. Ozone at 0.9μmolmol−1 reduced weight loss during storage and improved firmness maintenance. Skin colour was bleached in red peppers exposed to ozone at 2μmolmol−1, and in green ones at all tested doses. Total phenolic content was not affected by ozone but antioxidant activity was reduced in green chilli peppers exposed to ozone at 2μmolmol−1, due to lower ascorbic acid content in those samples. Ozone at 0.9μmolmol−1 extended the shelf-life of chilli peppers.
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