A feasibility study of gamma irradiation on Thailand frozen shrimps (PENEAUS MONODON)

Lacroix, Monique; Charbonneau, R.; Jobin, M.; Thibault, C.; Nouchpramool, K.; Charoen, S.; Gagnon, M.

doi:10.1016/0969-806x(95)00252-s

Cited by 3 publications

(2 citation statements)

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“…Thus, acid hydrolysis extraction following the EN 1788 method (7) was employed to separate the silicate minerals from the prawn. Because the shelf life of the nonirradiated prawn is 33 days, while that for prawn irradiated at 1.8-3.6 kGy is 47 days by Lacroix et al (34), in this study, the samples were irradiated at 0.5 and 2.5 kGy and subjected to TL analysis after storage for 1 or 60 days at -20 °C. Figure 1 shows the typical TL glow curves of minerals from the (a) non-irradiated and (c) 0.5 kGy irradiated prawn intestines after storage for 60 days at -20 °C.…”

Section: Resultsmentioning

confidence: 99%

Identification of Irradiated Prawn (Penaeus monodon) Using Thermoluminescence and 2-Alkylcyclobutanone Analyses

Chen

Morita

Saito

et al. 2010

J. Agric. Food Chem.

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Thermoluminescence (TL) and 2-alkylcyclobutanone (2-ACB) analyses were performed to identify irradiated prawns ( Penaeus monodon ). With the TL method, minerals were extracted from prawns using acid hydrolysis. The experimental results satisfied the evaluation criteria of European Norm (EN) 1788, even after low-dose irradiation (0.5 kGy) and a 60 day storage at -20 °C. With the 2-ACB method, 2-dodecylcyclobutanone (2-DCB) and 2-tetradecylcyclobutanone (2-TCB) were successfully extracted from prawns by direct solvent extraction with purification using a conventional silica column and a sulfoxide column, which was used for 2-ACB for the first time. Both 2-ACB derivatives were absent from the non-irradiated samples but were identified in all irradiated samples by gas chromatography-mass spectrometry. Moreover, 2-DCB and 2-TCB production correlated with the applied dose (2.5-10 kGy), and the correlation did not diminish after 60 days of storage at -20 °C for any dose. Therefore, these two techniques provide rapid, simple, and promising methods for routine investigation of frozen prawns.

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Section: Resultsmentioning

confidence: 99%

Identification of Irradiated Prawn (Penaeus monodon) Using Thermoluminescence and 2-Alkylcyclobutanone Analyses

Chen

Morita

Saito

et al. 2010

J. Agric. Food Chem.

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“…In addition, the potential benefits gained from the introduction of irradiation technology into the international seafood trade have drawn the attention of numerous recent publications in which radiation processing has been successfully employed to extend storage life, to improve nutritional and sensory quality and to ensure fish safety during export (Kwon et al. 1993; Lacroix et al. 1995; IAEA 2002b; USAID/WATH 2005).…”

Section: Resultsmentioning

confidence: 99%

Potential Future Challenges to the Application of Gamma Irradiation to Seafood in Tunisia

Mbarki

Jerbi

Sadok

2008

J Food Processing Preservation

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There is an increasing consumer demand for high quality, minimally processed, additive-free and microbiologically safe foods. The future application of irradiation to the seafood industry is developing. In order to investigate the feasibility of using gamma irradiation in the fish and seafood industry, questionnaires were distributed to the managers of 25 fish exporting companies. The cost of irradiation and the additional transport services were discussed and mostly accepted. This survey showed that essential conditions are to be found in Tunisia to introduce irradiation technology into the exporting seafood industry. However, the legal status of seafood irradiation varies in some importing countries (mainly European Union [EU]). Regulators within the EU have taken different approaches to allowing processors to use this technology. Such inconsistency is related to the objection of misinformed consumers. Consequently, commercial trade of irradiated seafood could be impeded.3 Corresponding

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Microbial Population, Physicochemical Quality, and Allergenicity of Molluscs and Shrimp Treated with Cobalt-60 Gamma Radiation

Sinanoglou

Batrinou

Konteles

et al. 2007

Journal of Food Protection

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Frozen molluscs (squid, octopuses, and cuttlefish) and crustaceans (shrimp) were irradiated using a cobalt-60 gamma source, at different doses, in order to investigate the effects of gamma radiation on their microbial population, organoleptic characteristics, lipid profile, and tropomyosin content. Irradiation of shrimp and squid with either 2.5 or 4.7 kGy reduced mesophilic bacteria contamination to low or nondetectable levels, respectively, whereas irradiation of octopus and cuttlefish with the same doses reduced the bacterial population. Irradiation treatment had no significant (P > 0.05) effect on the total lipid content and the major detected classes of polar and neutral lipids, whereas it significantly (P < 0.05) increased the contents of neutral lipids in octopus mantle and in shrimp muscle and cephalothorax samples. The total fatty acid content and the omega-3: omega-6 fatty acid ration was not affected. A dose-dependent significant (P < 0.05) decrease in the ratio of polyunsaturated fatty acids:saturated fatty acids was observed. With the increase in radiation dose, redness (a) and yellowness (b) values showed a variation, whereas the lightness (L) value was significantly (P < 0.05) decreased in mollusc mantles and shrimp muscle and increased in shrimp cephalothorax. The total of color changes ( delta E) increased (P < 0.05) as the dose increased. Significant (P < 0.05) changes in textural properties were observed with radiation treatment in octopus tentacles and in squid and cuttlefish mantle. The amount of tropomyosin, which is the major mollusc and crustacean allergen in the irradiated organisms, was reduced by gamma radiation, depending on the dose.

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A feasibility study of gamma irradiation on Thailand frozen shrimps (PENEAUS MONODON)

Cited by 3 publications

References 1 publication

Identification of Irradiated Prawn (Penaeus monodon) Using Thermoluminescence and 2-Alkylcyclobutanone Analyses

Identification of Irradiated Prawn (Penaeus monodon) Using Thermoluminescence and 2-Alkylcyclobutanone Analyses

Potential Future Challenges to the Application of Gamma Irradiation to Seafood in Tunisia

Microbial Population, Physicochemical Quality, and Allergenicity of Molluscs and Shrimp Treated with Cobalt-60 Gamma Radiation

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