Vol 127 (2014): Proceedings of the Florida State Horticultural Society
Handling & Processing

The effect of chlorine dioxide and chitosan/essential oil coatings on the safety and quality of fresh blueberries

Xiuxiu Sun
Kequan Zhou
Jan Narciso
Christopher Ference
Jinhe Bai
2014 Proceedings Florida State Horticultural Society Volume 127
Published March 15, 2018


Blueberries are high-value fruit having strong antioxidant capacity and health-promoting benefits. Controlled-release of ClO2 pads and chitosan coating incorporated with 0.5% of carvacrol (CAR) or trans-cinnamaldehyde (ECIN) were applied to fresh blueberries to preserve their quality and ensure microbial safety during postharvest storage. Fruit firmness and microbial populations were monitored during storage. There were approximately a 2 log reduction in the population of bacteria and yeasts/molds in the blueberries after eight days of storage at 10 °C when comparing any of treated fruit with the control. Controlled-release ClO2 pads and chitosan coating incorporated with 0.5% of CAR or ECIN also maintained the firmness of blueberries. Our results suggest that controlled-release ClO2 and chitosanessential oil coatings are effective in extending the shelf life of fresh blueberries