Summary
Abstract
The effect of electrolyzed oxidizing (EO) water in combination with ozone to control postharvest decay of tangerine was investigated. The spore suspension containing 105 conidia ml 1 of Penicillium digitatum was prepared. EO water was generated by electrolysis of various concentrations of NaCl solution (5, 25, 50% and saturated NaCl). The spore suspension was inoculated into EO water and incubated at 27 C for 1, 2, 4, 8 and 32 min. It was found that the EO water with saturated NaCl completely inhibited the spore germination of the fungus within 1 min. When the fruits inoculated with P. digitatum were washed in EO water at the same concentrations as previous experiment for 4, 8 and 16 min and stored at 5 C for 18 days, it was found that immersion of the fruit in EO water for 8 min was the most effective to reduce disease incidences. Moreover, washing fruit in EO water and kept in a refrigerated chamber at 5 C with continuous ozone exposure at a concentration of 200 mg l 1 for 2 h day 1 to extend storage life suppressed the disease incidence until 28 days. However, none of the treatments had any effect on the quality of fruit such as total soluble solids, titratable acidity, percent weight loss and peel color. Therefore EO water may be useful for surface sanitation and ozone has potential to control the recontamination of postharvest diseases in tangerine fruit in storage room.
Study details
- Published in: Crop Protection 29.4 (2010): 386-389
- Microbes studied: Fungi, Penicillium digitatum
Source
Source: Crop Protection 29.4 (2010): 386-389
Conditions tested
| Parameter | Value |
|---|---|
| Organisms | Fungi (general), Penicillium spp. |
| Relevant sectors | Agriculture & Livestock, Food safety, Produce & Packing |
| Publication | Crop Protection, 2010 |
Reading this responsibly
Published figures are obtained under controlled conditions, usually on clean surfaces or in defined matrices. Organic load, surface condition, temperature and application coverage all affect real-world performance. Use these numbers to design a protocol, then validate it on your own site with environmental swabbing.
Applying it
Concentrations in this range are within the adjustable output of every EcoloxTech commercial system, so implementing this protocol is a settings question rather than a procurement one. Where the claim needs to sit on a registered label, see HOCl-AS200, EPA Reg. No. 101112-1.