Ozone treatment of stored potato tubers
Laen...
Kuupäev
2020
Kättesaadav alates
Autorid
Hutla, P.
Kolaříková, M.
Hájek, D.
Doležal, P.
Hausvater, E.
Petráčková, B.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
During storage, potato tubers are susceptible to different pathogen, which can attack
the skin and flesh of the tubers. The most serious damage can be caused by rot inducing bacteria
and fungi. A possible way to prevent microbial damage may be the use of ozone in the air
ventilated through the stored tubers. However, the tubers can undergo qualitative changes, e.g.
dehydration and loss of starch content. This article presents the results of a five-month experiment
in which ozone concentration of 5 mg m-3 was periodically introduced in some of the stored potato
tubers of the cultivar ‘Dali’. All potato tubers were stored in closed storage boxes with a metal
frame and wood panels in the floor and walls (ground area 1.6×1.2 m, height 0.95 m) which were
continuously aerated using the ambient air in a potato warehouse. There was 900 kg of tubers
stored in the box. At the end of the experiment, the ozonated variant was compared with the
control (not treated). The ozone-treated tubers had 2.95 times lower incidence of infection by
rot and the number of microorganisms on healthy tubers was lower than the control. The
ozone-treated tubers were less frequently dehydrated. The water loss was higher in control by
0.86 %. There was no significant difference in silver scurf manifestation or in the starch content
between the two variants.
Kirjeldus
Märksõnad
cold plasma, potato diseases, tuber quality, vegetable storage, articles