Decontamination of Botrytis spp. in strawberries by Na-Chl was 10% effective compared to the control

Pathogenic fungi cause high postharvest losses therefore new anti-microbial technologies are needed. New anti-microbial technologies are needed that more effectively reduce postharvest losses and control food pathogens. This method is based on non-harmful measures-photosensitizer and visible light that?s leads to environmentally friendly plant protection. This study aimed to evaluate the efficacy of non-thermal measures for reducing mycological decontamination in strawberry fruit. The effect of photosensitization was investigated at the LRCAF Institute of Horticulture in 2013. Fifty fruit were assessed for maturity, size and free from physical damage and fungal infection. Experimental treatments included 1) control ? untreated fruit, 2) ?-Na-chlorophyllinogen (Na-Chl) + visible light, and 3) sterile water + visible light. Fruits were incubated with a photosensitizer Na-Chl 0.015 M for 1 h, dried and illuminated 30 min. with visible light (?=400 nm, 12 mW/cm2). Fruit were assessed after 5, 7 and 12 days of stimulated storage at 5-7?C. Mycological analysis of fruits showed that fungi of the genus Botrytis showed a high frequency of occurrence and were detected in all treatments. Botrytis spp. frequency occurrence after 7 days of stimulated storage amounted up to 40% in control, 36% - Na-Chl and 38% - Water. Experimental data indicated that decontamination of Botrytis spp. by Na-Chl was 10% effective compared to the control. Original title, complete list of authors and sourcesInnovative technologies of non-thermal means to reduce mycological contamination of strawberry fruitN. Rasiukevi?i?t?1, A. Valiu?kait?1, N. Uselis1, L. Buskien?1, J.Vi?kelis1, ?. Luk?ien?21Institute of Horticulture, Lithuania Research Centre for Agriculture and Forestry, Kauno st. 30, LT-54333 Babtai, Lithuania2Institute of Applied Sciences, Vilnius University, Saul?tekio 10, 10223 Vilnius, Lithuania V Postharvest Unlimited, ISHS International Conference, 10-13 June 2014, Cyprus, http://web.cut.ac.cy/postharvest/The picture is by www.biodiversidadvirtual.org, author?Oscar Gadea (he indicates it?s an identification without microscopy). ? Key wordsPoscosecha?? ?postcosecha?? ?postharvest?? ?na-oes?? ??? ??? ???????? ????? ??? ?post-r?colte?? ????? ?? ??????????? ??? ?na-oogst?? ?post-raccolta?? ?Obr?bka po?? ?p?s-colheita?? ????????????????? ?hasat sonras??? ??? ?Ernte?? ????????????????? ????? ????????????? ?postcollita?? ?poskliz?ov頠 ????? ??? ??? ??? ?nakon branja?? ?pozberov頠 ??? ?obdelovanje zemlje po?? ?post-colleita?? ?????? ??????? ?pascapanen?? ??il?onn postharvest?? ??????? ?p?c ra?as?? ?derliaus apdirbimas po?? ?lepas tuai?? ??? ?? ???????? ?post-recoltare?? ??????? ??????? ???????????????????? ?????????????? ?????????????????? ?sau thu ho?ch?? ?????????????????? ?zangemva kwenkathi yokuvunaFresa?? ?frutilla?? ?strawberry strawberries?? ?aarbei?? ??????????? ????? ??? ?fraise?? ?????????? ????????????? ?aardbei?? ?fragola?? ?truskawka?? ?morango?? ??????????? ??ilek?? ???????????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???? ?