Gamma radiation sensitivity of the eggs, larvae and pupae of Indian meal mothPlodia interpunctella (Hübner) (Lepidoptera: Pyralidae)

2008 ◽  
Vol 64 (5) ◽  
pp. 505-512 ◽  
Author(s):  
Abdurrahman Ayvaz ◽  
Sevil Albayrak ◽  
Salih Karaborklu
Keyword(s):  
Gamma Radiation ◽  
Radiation Sensitivity ◽  
Indian Meal ◽  
Lepidoptera Pyralidae

scholarly journals Efficacy of essential oils to control the Indian meal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae)

2017 ◽  
Vol 20 (4) ◽  
pp. 1122-1129 ◽  
Author(s):  
Emiliano Nicolás Jesser ◽  
Jorge Omar Werdin-González ◽  
Ana Paula Murray ◽  
Adriana Alicia Ferrero
Keyword(s):  
Essential Oils ◽  
Plodia Interpunctella ◽  
Indian Meal Moth ◽  
Indian Meal ◽  
Lepidoptera Pyralidae

GAMMA RADIATION SENSITIVITY OF THE SPIDER BEETLE, GIBBIUM PSYLLOIDES (COLEOPTERA: PTINIDAE)

1972 ◽  
Vol 104 (10) ◽  
pp. 1551-1556 ◽  
Author(s):  
John H. Brower ◽  
Hilda C. Scott
Keyword(s):  
Gamma Radiation ◽  
Radiation Sensitivity ◽  
Radiation Resistant ◽  
Eggs And Larvae ◽  
All Treatment

AbstractThe effects of seven gamma radiation dosages from 5 to 100 krad on all metamorphic stages of the spider beetle, Gibbium psylloides (Czenpinski), were studied. Five kilorads prevented development of adults from treated eggs and larvae. Some adults emerged from the pupal cocoon at all treatment levels except 50 and 100 krad, but their longevity was greatly reduced. Adults were fairly resistant to sterilizing effects of the radiation. Twenty kilokrads was not completely sterilizing to either males or females, but fecundity was greatly reduced. The longevity of treated adults was significantly reduced, but some survived for 20 weeks after a 20-krad exposure. Adults and pupae of this species were more radiation resistant than were most other stored-product Coleoptera.

Gamma Radiation Sensitivity of Enterobacter sakazakii in Dehydrated Powdered Infant Formula

2006 ◽  
Vol 69 (6) ◽  
pp. 1434-1437 ◽  
Author(s):  
J. W. LEE ◽  
S. H. OH ◽  
J. H. KIM ◽  
H. S. YOOK ◽  
M. W. BYUN
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Infant Formula ◽  
Marked Effect ◽  
Radiation Sensitivity ◽  
Sensory Properties ◽  
Hot Water ◽  
Powdered Infant Formula ◽  
Enterobacter Sakazakii ◽  
Nutritional Studies

The observed Enterobacter sakazakii D10-values for tryptic soy broth and dehydrated powdered infant formula were 0.27 ± 0.05 and 0.76 ± 0.08 kGy, respectively. A decrease of approximately 3 log in the dehydrated powdered infant formula was obtained by irradiation with 3.0 kGy or rehydration with hot water at 80°C. No recoverable bacteria were found in the powdered infant formula irradiated at 5.0 kGy and stored, either before or after rehydration. A radiation dose of up to 5.0 kGy had no marked effect on the sensory properties of the dehydrated powdered infant formula after rehydration and heating. Gamma radiation could potentially be used to inactivate E. sakazakii in dehydrated powdered infant formula; however, nutritional studies need to be conducted before the use of radiation can be recommended.

scholarly journals Effects of Low Ozone Concentrations and Short Exposure Times on the Mortality of Immature Stages of the Indian Meal Moth, Plodia Interpunctella (Lepidoptera: Pyralidae)

2014 ◽  
Vol 54 (3) ◽  
pp. 267-271 ◽  
Author(s):  
Ensieh Keivanloo ◽  
Hussein Sadeghi Namaghi ◽  
Mohammad Hossein Haddad Khodaparast
Keyword(s):  
Laboratory Experiments ◽  
Plodia Interpunctella ◽  
Short Exposure ◽  
Stored Products ◽  
Immature Stages ◽  
Indian Meal Moth ◽  
Pistachio Nuts ◽  
Indian Meal ◽  
Lepidoptera Pyralidae ◽  
Date Fruits

Abstract In Iran, the Indian meal moth, Plodia interpunctella (Hübner), is one of the most important pests of such stored products as date fruits and pistachio nuts. Ozone was applied as a gas at four concentrations (0, 2, 3, and 5 ppm) for four different periods (30, 60, 90, and 120 min) on the immature stages of P. interpunctella. The results indicated that by increasing the concentration and exposure time, the rate of mortality increased for all tested stages. This study showed that 12-day-old larvae were more susceptible than other stages when exposed to 5 ppm ozone for 120 min. The next in order of susceptibility were pupae, then 5-day-old larvae, and 17-dayold larvae had the highest sensitivity to ozonation. At the highest concentration of ozone, for the longest time, the least mortality rate was recorded for one-day-old eggs. According to the results, a reduction in the population density of P. interpunctella in laboratory experiments is promising. However, validation studies will be necessary to fully determine the potential of ozone as a replacement for the current post harvest chemical control of P. interpunctella on either pistachio nuts or date fruits.

scholarly journals Incorporation of 5-substituted uracil derivatives into nucleic acids. The isolation and γ-radiation-sensitivity of bacteriophage T3 containing the thymine analogue 5-vinyluracil

1980 ◽  
Vol 187 (1) ◽  
pp. 257-260 ◽  
Author(s):  
E T J Chelton ◽  
M Duggan ◽  
R N Hunston ◽  
A S Jones ◽  
M K O'Leary ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Nucleic Acids ◽  
Gamma Radiation ◽  
Radiation Sensitivity ◽  
Γ Radiation ◽  
Uracil Derivatives ◽  
Phage Dna

Bacteriophage T3 was produced in a form that contained 32% of its normal DNA thymine residues replaced with 5-vinyluracil residues by infecting a thymine-requiring strain of Escherichia coli with phage T3 in a medium containing 5-vinyluracil. When 2′-deoxy-5-vinyluridine was added to the medium instead, no incorporation was observed into the phage DNA, and the presence of the deoxyribonucleoside severely decreased the number of viable phage particles produced. The analogue-containing phage, although initially viable, rapidly lost viability when stored, but it was no more sensitive than was normal phage T3 to the effect of gamma-radiation.

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