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Mycology 2017
September 25-26, 2017
conferenceseries
.com
September 25-26, 2017 Chicago, USA
2
nd
International Conference on
Mycology & Mushrooms
Volume 3, Issue 2 (Suppl)
Med Mycol Open Access
ISSN: 2471-8521
Probability inspection using solution and ozone gas for lichen removal in historical levels for case study of
perspolice pilot
Hossein Naderi
Azad University of Tehran Markaz, Iran
L
ichens consists of algae and mushroom coexistence but it is believed that parasitic life of mushroom on algae in the way that
mushroom feed from mineral and organic materials of
stone.inresult of lichens interactions , stone breaks and convert to soil.
Some lichen grow out only 1 mm during one year and this coexistent mushroom live for 4000 years and could resist in -600c.there is
lichen hazard in all historical buildings but most risk is in stone inscription in fars province that is observed in stone inscription in
perspolice. Many methods are proposed but aren’t practical in historical works and results in damages such as mechanical methods
or washing by water with high pressure or by bio side which are expensive .in present study , feasibility of ozone is tested and main
question is that by what dose and density of ozone solution or gas , lichen could be diminished and also what is destructive effect
of ozone on stone and whether it could result in color changes. what is it’s effect on utilized bacteria in lichens and what is it’s
effects on algae chlorophyll? some advantages of ozone in comparison with other methods is it’s more safety and it’s low-cost also it’s
high oxidation because of it’s ozone structure that include oxygen which affect on microorganism cellular wall very much. Research
importance could be inspected from several perspectives ,fist regarding to stone and historical building variety in country and lichen
in these works especially in perspolice and present inscription importance in perspolice and high cost of these buildings destruction
for country .perspolice inscriptions penetrate some millimeter in stone and in some places ,these lichens could be observed in these
inscriptions .lichens could penetrate in stone because of their thallus structure thus it is possible that inscription drawing .mechanical
methods for these inscriptions and drawings is disastrous because it is observed that by brushing , thallus would scatter and would
grow out more after that. Applying laser and water have it’s disadvantages and exhibit stone erosion .thus applying ozone gas and
solution in water could have minimum disadvantage and hazard.
hossein_naderi53@yahoo.comMed Mycol Open Access, 3:2, 2017
DOI: 10.21767/2471-8521-C1-003