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    Antimicrobial Activity of Six Pomegranate (Punica granatum L.) Varieties and Their Relation to Some of Their Pomological and Phytonutrient Characteristics
    (Mdpi, 2009) Duman, Ahmet D.; Ozgen, Mustafa; Dayisoylu, Kenan S.; Erbil, Nurcan; Durgac, Coskun
    Arils from six pomegranate (Punica granatum L.) varieties grown in the Mediterranean region of Turkey were tested for their antimicrobial properties by the agar diffusion and minimum inhibitory concentration (MIC) methods against seven bacteria: (Bacillus megaterium DSM 32, Pseudomonas aeruginosa DSM 9027, Staphylococcus aureus Cowan 1, Corynebacterium xerosis UC 9165, Escherichia coli DM, Enterococcus faecalis A10, Micrococcus luteus LA 2971), and three fungi (Kluvyeromyces marxianus A230, Rhodotorula rubra MC12, Candida albicans ATCC 1023). It has been observed that the pomegranate aril extracts had antimicrobial effect on all microorganisms, giving inhibition zones ranging in size from 13 to 26 mm. The MIC values for active pomegranate extracts ranged between 30 and >90 mu g/mL. The results obtained appeared to confirm the antimicrobial potential of the Punica granatum varieties.
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    Efficacy of gaseous ozone at high concentrations against Plodia interpunctella (Hubner) and Ephestia cautella (Walker) in Almond
    (Entomological Soc Turkey, Ege Univ, 2015) Isikber, Ali A.; Oztekin, M. Serdar; Dayisoylu, K. Sinan; Duman, Ahmet D.; Eroglu, Selda
    In this study efficacy of gaseous ozone at high concentrations and short exposure time against all life stages of Plodia interpunctella (Hubner) ve Ephestia cautella (Walker) (Lepidoptera: Pyralidae) in almond was investigated under laboratory conditions. All life stages of E. cautella and P. interpunctella placed at the top and bottom position of 1.3 kg almond in fumigation chamber were exposed to two different concentrations (8.35 and 33.33 mg/l) of ozone flush treatment at 30 minute intervals for 6 hour. The results of biological tests indicated that ozone treatment at 33.33 mg/l concentration resulted in % 100 or nearly % 100 mortalities of only adult and pupa stage of E. cautella and all life stages of P. interpunctella placed at top position of the almond. However, ozone treatments at lower concentration (8.35 mg/l) caused nearly % 100 mortalities of only adult and pupa stage of P. interpunctella at placed at top position of the almond. It was clear that ozone treatments at low concentration (8.35 mg/l) resulted in significantly lower mortalities of all life stages of E. cautella and P. interpunctella than those at high concentration (33.33 mg/l). Generally, in all ozone treatments the mortalities of tested insects placed at top position of the almond were higher than those placed at bottom position of the almond. Notably, it was hard to kill the larvae and eggs of E. cautella and P. interpunctella placed at bottom position of the almond. Moreover, it was found that E. cautella was more tolerant to ozone treatments than P. interpunctella except their egg stage. In conclusion, this study shows that ozone treatment at high concentrations and short exposure time could not be effective alternative to methyl bromide for the rapid disinfestations of the almonds since it did not cause the complete mortality of all life stages of E. cautella and P. interpunctella on almond.
  • Küçük Resim
    Öğe
    Efficacy of gaseous ozone at high concentrations against Plodia interpunctella (Hübner) and Ephestia cautella (Walker) in Almond
    (Entomological Society of Turkey, 2015) Işikber, Ali A.; O¨ztek?n, M. Serdar; Dayisoylu, K. Sinan; Duman, Ahmet D.; Ero?lu, Selda
    In this study efficacy of gaseous ozone at high concentrations and short exposure time against all life stages of Plodia interpunctella (Hübner) ve Ephestia cautella (Walker) (Lepidoptera: Pyralidae) in almond was investigated under laboratory conditions. All life stages of E. cautella and P. interpunctella placed at the top and bottom position of 1.3 kg almond in fumigation chamber were exposed to two different concentrations (8.35 and 33.33 mg/l) of ozone flush treatment at 30 minute intervals for 6 hour. The results of biological tests indicated that ozone treatment at 33.33 mg/l concentration resulted in % 100 or nearly % 100 mortalities of only adult and pupa stage of E. cautella and all life stages of P. interpunctella placed at top position of the almond. However, ozone treatments at lower concentration (8.35 mg/l) caused nearly % 100 mortalities of only adult and pupa stage of P. interpunctella at placed at top position of the almond. It was clear that ozone treatments at low concentration (8.35 mg/l) resulted in significantly lower mortalities of all life stages of E. cautella and P. interpunctella than those at high concentration (33.33 mg/l). Generally, in all ozone treatments the mortalities of tested insects placed at top position of the almond were higher than those placed at bottom position of the almond. Notably, it was hard to kill the larvae and eggs of E. cautella and P. interpunctella placed at bottom position of the almond. Moreover, it was found that E. cautella was more tolerant to ozone treatments than P. interpunctella except their egg stage. In conclusion, this study shows that ozone treatment at high concentrations and short exposure time could not be effective alternative to methyl bromide for the rapid disinfestations of the almonds since it did not cause the complete mortality of all life stages of E. cautella and P. interpunctella on almond. © 2015, Entomological Society of Turkey. All rights reserved.