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vitro induction of mutation in banana ( Musa sp.) by using gamma irradiation. Egypt. J. Biotechnol. , 13 , 37–49. Aliwa N. E. In vitro induction of mutation in banana

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13 3 15 Abu, J. O., Muller, K., Duodu, K. G., Minnar, A. (2005): Gamma irradiation of cowpea ( Vigna unguiculata L. Walp) flours and pastes. Food

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Acta Microbiologica et Immunologica Hungarica
Authors: Bahareh Salehi, Farahnaz Motamedi-Sedeh, Omid Madadgar, Iraj Khalili, Arash Ghalyan Chi Langroudi, Hermann Unger, and Viskam Wijewardana

gamma-irradiated viral antigens has been developed in the production of effective vaccines as well as for diagnostic purposes. The dose of gamma radiation for viral inactivation is related to the virus concentration, the size of the particles containing

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Afifi, E.A. & El-Nashaby, F.M. (2001): Microbial decontamination of some chicken meat products by gamma irradiation. Arab J. Nuclear Sci. Appl. , 34, 305

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M. Korkmaz 2006 Gamma irradiation of liposomal phospholipids FABAD J Pharm. Sci. 31 182 190

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55 67 Cieśla, K. (2003): Gamma irradiation influence on wheat and flour gelatinisation studied by DSC and amylography. J. thermal Anal. Cal. , 74

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Al-Bachir, M. & Lahham, G. (2003): The effect of gamma irradiation on the microbial load, mineral concentration and sensory characteristics of licorice ( Glycyrrhiza glabra L). J. Sci. Fd Agric , 83 , 70

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2006 40 30 38 Erdoğan S, Özer AY, Ekizoğlu M, Özalp M, Çolak Ş: Gamma irradiation of liposomal phospholipids. FABAD J

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., Bharnagar, P. K. (2001): Gamma-irradiated onions as a biological indicator of radiation dose. Radiat. Meas. , 33 , 833–836. Bharnagar P. K. Gamma-irradiated onions as a

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Abstract  

In this comparative study, the effect of gamma rays on the ageing characteristics of poly(ethylene-co-vinyl acetate) (EVA) and poly(ethylene-co-vinyl acetate)/carbon black mixture (EVA/CB) was investigated in terms of thermal stability. EVA, containing 13% vinyl acetate (VA), and EVA/CB, containing 13% VA and 1% carbon black (CB), were aged at 85°C in air up to 30 weeks for thermal ageing. Same substances were aged by means of UV light with a wavelength in the vicinity of 259 nm, in air, up to 400 h for UV ageing. Same substances were also irradiated with gamma rays at ambient conditions up to 400 kGy. Following these experiments, samples which had been irradiated with gamma rays, were subjected to thermal and UV ageing under the same conditions as for unirradiated samples. Dynamic thermogravimetry studies were performed for determination of the thermal stabilities of the samples. 10 and 50% mass losses were calculated for the samples from their respective curves. As a result of thermal analysis experiments, it was found that CB dramatically loses its protective property against thermal ageing of EVA after gamma irradiation. On the other hand, gamma irradiation does not have any significant effect on the UV ageing characteristics of EVA and EVA/CB in terms of thermal stability.

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