Food irradiation development in Pakistan

Khan, Ismail

doi:10.1016/1359-0197(90)90093-w

Cited by 3 publications

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“…gamma rays, X-rays or electrons, can be used to extend the life of certain fruits and vegetables by delaying ripening or killing moulds, and for the control of insect infestation of grains and other stored products. It is also a safer and cheaper control method { Elvin, et al, (1974) ;Khan, (1990) ;Henry, (1998) ;Guy, (1999) ;Farkas, (2006); Villavicencio et al, (2007) and Bhat and. Sridhar, (2008)…”

Section: Introductionmentioning

confidence: 99%

Biochemical effects of potato irradiation on potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera – Gelechiidae)

Haiba¹,

Aziz

2008

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Effect of gamma radiation on the whole body contents of nutritional materials was investigated for potato tuber moth, Phthorimaea operculella Zeller, fed on irradiated potato tubers. The statistical analysis of the data indicated that the quantities of carbohydrates, proteins and lipids in the whole body of the adults of Ph. operculella were affected significantly. There was a correlation with their changes in the potato tubers; as a significant decrease in protein and carbohydrate contents was recorded for potato tubers and both male and female moths at most doses. Although lipid was recorded as a trace amount in both non-irradiated and irradiated potatoes it was significantly increased in males fed on irradiated potatoes at all doses. While a significant decrease in lipid contents at lower doses (50 and 70 Gy) was recoded , a significant increase at higher doses (100, 150 and 200 Gy) was noticed in case of females. The total body weight of insects was affected directly with the increase in the dose of potato irradiation

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Section: Introductionmentioning

confidence: 99%

Biochemical effects of potato irradiation on potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera – Gelechiidae)

Haiba¹,

Aziz

2008

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Macromolecular abnormalities in the adults of the potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera: Gelechiidae) induced by larval feeding on irradiated potato tubers

Aziz

Amin

El-barky

2008

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Potato tubers were irradiated with different doses of gamma irradiation (50,100 and 200Gy), and fed by the larvae of Phthorimaea operculella (Lepidoptera : Gelechiidae), to measure the effect of larval feeding on some biochemical components of the adult stage. The data indicated that the change in larval diet (tubers) due to irradiation led to some changes in such biochemical components of the adult. Irradiation increased phenolic content and oxidation capacity of potato tubers, while vitamin C was significantly reduced. Vitamin C content of the adult was not significantly changed at most doses. From the nutritional point of view, this means that the decrease in a nutrient in the diet not necessitate corresponding suppression in the feed insects. Acid and alkaline phosomonoesterases activities and trehalose content of the adult were significantly depressed. Such depression was related to the increased phenolic content of potato tubers after irradiation. This provides an evidence that irradiation of potato tubers could leads to products which might be toxic to insects and able to change in the diet (tubers) component that fed by the larvae. It is interesting to realize that ionizing irradiation inactivate pathogens or directly killed store insect stages, but also could control reinfestation of pest by producing changes in nutrients of potato tubers, and increasing toxic compounds, resulting in abnormalities which could extent to the adult stage and reduce its reproductive capacity.

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Effect of Gamma Radiation to Cope with Post-harvest Losses and Nutritional Components in Guava (Psidium guajava L.)

Munir

Tahir

Naz

2020

CNF

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Background: Guava (Psidium guajava L.) fruit is an important part of our diet and valuable for consumption as a source of healthy nutrients. Due to its perishable nature, it has a high decaying rate with an economic loss if not treated properly with suitable measures. Objectives: During the recent year, radiation technology gained popularity at a global level for treating foods to achieve better quality and long-lasting shelf life. Recent studies focus on the use of radiation treatment for guava to enhance its shelf life. Methods: Treatment of two local guava cultivars Gola and Surahi with gamma radiation at doses of 0.10 kGy, 0.25 kGy and 0.5 kGy and their effect was investigated on the microbial load and nutritional value. Results: Furthermore, the effect of gamma radiation on fruit shelf life, decay percentage, organoleptic qualities, and nutrient parameters including moisture, mineral ash, fat, fibre, protein and carbohydrate content was determined. Conclusion: Hence this study was helpful in optimizing the dose of gamma radiation for our commonly grown guava cultivars to enhance their shelf life.

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Food irradiation development in Pakistan

Cited by 3 publications

References 1 publication

Biochemical effects of potato irradiation on potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera – Gelechiidae)

Biochemical effects of potato irradiation on potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera – Gelechiidae)

Macromolecular abnormalities in the adults of the potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera: Gelechiidae) induced by larval feeding on irradiated potato tubers

Effect of Gamma Radiation to Cope with Post-harvest Losses and Nutritional Components in Guava (Psidium guajava L.)

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