A study of the mutagenicity of irradiated sugar solutions: implications for the radiation preservation of subtropical fruits

Development of an optimised papaya pulp nectar using a combination of irradiation and mild heat

“…It would be of interest to explore the rate of change in ORAC value at doses of irradiation that would be expected to oxidise all of the ascorbic acid, and attempt to determine what other compounds in papaya would be subsequent targets. Niemand et al (1983) found that phenols and organic acids accounted for most of the protection from mutagen formation in mango juice. Their contribution to ORAC value should be further explored.…”

“…Glucose, fructose and sucrose were found to primarily absorb the rays, with malonaldehyde and other sugar derivatives being formed. Niemand, den Drijver, Pretorius, Holzapfel, and van der Linde (1983) reported that irradiation of sugar solutions resulted in mutagenic compounds; these mutagenic compounds did not form in irradiated mango juice. Organic acids and phenols contributed to 85% of the protective effect.…”

Low-Dose Ionizing Radiation of Fruit Juices: Benefits and Concerns

“…Many of compounds listed above were identified in irradiated carbohydrate solutions. The accumulation of the compounds in fruit juice will probably be minimal or significantly reduced (45,46). It should also be pointed out that most of the compounds including THF were identified and quantified using non specific methods, which may result in over-estimation.…”

Relationship between pulp structure breakdown and nutritional value of papaya (Carica papaya) and strawberry (Fragaria x ananassa) nectars using alternative thermal and non‐thermal processing techniques

“…While most vitamins are similarly affected by irradiation, some, including ascorbic acid (vitamin C) and α ‐tocopherol (vitamin E), are affected more than others. Furthermore, irradiation doses are closely regulated by the US Food and Drug Administration (FDA) due to the production of mutagenic or other potentially harmful compounds . Radiation doses for the present study were chosen based on current FDA regulations (http://www.fda.gov/Food/IngredientsPackagingLabeling/IrradiatedFoodPackaging/default.htm), experiments already conducted and the need to further explore the full effect of a wide range of radiation doses on the fruits in question.…”