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Mycological and chemical study on air coolers in Diwaniya cityIraq | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 10, Issue 4, 2010, Pages 30-38 PDF (0 K) | ||
| Author | ||
| Abstract | ||
| The aim of this study was to observe fungi located in air coolers in Diwaniya city .Several genera of fungi were isolated from air, water and straw of air cooler. The percentage of isolated fungi was recorded in the period from May to Septemper -2009. Some chemical parameters were measured for water of coolers .Then the toxicity of fungi was tested, the effect of abstergents on fungal growth was tested ,the results showed:- The isolated fungi were Aspergillus niger , A.flavus , Fusarium solani , F.oxysporum , Rhizopus stolonifer , Penicillium digitatum , Alternaria alternata ,Rhizoctonia solani.The occurrence percentage of fungi was increased with increasing of study months .The fungus A.niger was the highest coexist in all samples as percentage (45.8% for air and 75% for water) ,while Rh.solani was the lowest occurrence in water and once in straw only.Also A.flavus was the highest production toxins comparing with another fungi .The study showed that the saline percentage and electrical conductivity were increased with increasing of working time of air cooler ,the ph of water convert from neutral to weakly acidity media depending on accumulation of salts.The results showed that all abstergents has high ability to inhibit the fungal growth and phenol was the best. | ||
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