التلوث البكتيري المرافق لصنفين من التمور المحلية (الخستاوي و الخضراوي)‎ المخزونة و المصابة بحشرة عثة التمر Walk.Ephestia cautella ( Lepidoptera : Pyralidae)‎ في مدينة الناصرية

الملخص EN

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 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 1603.17×10-4cell\gm 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 cell\gm in the infected Alkhstawi dates whereas it recorded 972.50× 10-4 cell\gm and significance level between them was .

The bacterial numbers in the none-infected Alkhstawi dates were higher from the none AlKhadrawi dateswhich were 1056.58×10-4 cell\gm and 630.67×10-4 cell\gm 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 cell\gm and 1164 .00 × 10-4 cell\gm 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.