ARS | Publication request: Effects of laser labeling on the quality of citrus fruit during storage

Submitted to: Florida State Horticultural Society Meeting
Publication Type: Abstract Only
Publication Acceptance Date: April 5, 2008
Publication Date: April 23, 2008
Citation: Sood, P., Etxeberria, E., Narciso, J., Ference, C. 2008. Effects of laser labeling on the quality of citrus fruit during storage. Florida State Horticultural Society Meeting. Paper No. HP21.

Technical Abstract: Etching the required information on fruit and vegetables is an alternative means to label produce. Low energy CO2 laser etches the surface showing the contrasting underlying layer. These etched surfaces can promote water loss and potentially allow for pathogen entry. Studies were conducted to measure water loss and potential decay due to laser labeling in citrus fruit during storage. Laser labeled fruit stored at 50 °F and 95% RH for 5 weeks showed no increase in decay compared to control non-etched fruit. It was observed that laser labeling did not facilitate decay at any energy level. Water loss from etched areas was proportional to laser energy levels and ambient relative humidity. Etching reduced spore germination in fruit surfaces previously inoculated with Penicillium spores, and did not facilitate decay in labeled fruit subsequently inoculated with a suspension containing Penicillium spores.