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Bacterial Contamination acompany to the two varieties of local stored dates (Al-khistawi and Al-Khadrawi) which infected with date moth Ephestia cautellaLepidoptera: Pyralidae) Walk. In Nassiryia City | ||
| Journal of Univesity of Thi-Qar | ||
| Article 1, Volume 9, Issue 3, 2014, Pages 1-11 | ||
| Author | ||
| Alaa H. Al-Awady | ||
| Abstract | ||
| When infected both varieties of local dates Alkhstawi and AlKhadrawi with insect date Ephestia cautella while stored at a temperature of 28 ± 1Celsius and humidity of 60 ±5 for one generation, contamination had emerged in both of dates varieties several of gram negative and positive bacteria which are: Escherichia coli, Enterobacter. spp, Klebsiella.spp, Pseudomonas aeruginosa, Proteus mirabilis Salmonella.spp Shigella.spp ,Enterococcus faecalis , Bacillus cereus Micrococcus.spp, Staphylococcus aureus Staphylococcus epidermidis and Streptococcus spp The gram negative bacteria in Pseudomonas aeruginosa had characterized in higher proportion of positive one for the samples of the infected Alkhstawi dates Alkhstawi which recorded 718.22% whereas infected gram negative bacteria Streptococcus spp. recorded Higher for proportion in the infected AlKhadrawi dates which recorded 533.35%. under probability level of P ≤ 0.005 As for the number of bacteria in the dates differed according to the variety of dates , for instance in Alkhstawi dates it amounted to 2439.08 × 10-4cell gram higher bacterial numbers in AlKhadrawi dates which was 1603.17×10-4cellgm In terms of the dates condition , the bacterial numbers had recoded remarable superiority on the none infected dates for both varieties of dates where it recorded 1382.50 × 10-4 cellgm in the infected Alkhstawi dates whereas it recorded 972.50× 10-4 cellgm and significance level between them was under P ≤ 0. 05. The bacterial numbers in the none-infected Alkhstawi dates were higher from the none AlKhadrawi dateswhich were 1056.58×10-4 cellgm and 630.67×10-4 cellgm each respectively. In terms of the dates, bacterial numbers were higher at the start of infection and after the appearance of numbers of the first generation which was 1177.77× 10-4 cellgm and 1164 .00 × 10-4 cellgm each result of statistical analysis indicate no significance level difference between them and they were less at two weeks before the infection as it recoded 683.83× 10-4 cell gm significance level. | ||
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