Thermoluminescence analysis of irradiated oyster shells

Cruz-Zaragoza, E.; Marcazzó, J.; Monaca, Sara Della; Boniglia, Concetta; Gargiulo, R.; Bortolin, Emanuela

doi:10.1016/j.apradiso.2012.01.024

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…In what may be considered the most prescient of irradiation applications was the use in NASA’s space program. The U.S. FDA approves the use of irradiation as a PHP for oysters and has been validated by a number of researchers [ 19 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ].…”

Section: Irradiationmentioning

confidence: 99%

Food Safety Impacts from Post-Harvest Processing Procedures of Molluscan Shellfish

Baker

2016

Foods

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Post-harvest Processing (PHP) methods are viable food processing methods employed to reduce human pathogens in molluscan shellfish that would normally be consumed raw, such as raw oysters on the half-shell. Efficacy of human pathogen reduction associated with PHP varies with respect to time, temperature, salinity, pressure, and process exposure. Regulatory requirements and PHP molluscan shellfish quality implications are major considerations for PHP usage. Food safety impacts associated with PHP of molluscan shellfish vary in their efficacy and may have synergistic outcomes when combined. Further research for many PHP methods are necessary and emerging PHP methods that result in minimal quality loss and effective human pathogen reduction should be explored.

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Section: Irradiationmentioning

confidence: 99%

Food Safety Impacts from Post-Harvest Processing Procedures of Molluscan Shellfish

Baker

2016

Foods

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“…Silicate minerals are isolated from the foodstuffs and should be as free of organic constituents as possible. The TL glow ratio between the glow curve obtained of the extracted minerals and a second glow curve of the same sample after exposure to a fixed dose of radiation is used to indicate radiation treatment of the food (EN 1788(EN , 2001Cruz-Zaragoza et al, 2012b;Marcazzó et al, 2012). On the other hand, PSL is a good alternative to the TL method because of the fast reading of the irradiated samples.…”

Section: Introductionmentioning

confidence: 99%

Photostimulated luminescence detection and radiation effects on cinnamon (Cinnamomum zeylanicum) spice

Marcazzó

Sanchez-Barrera

Urbina-Zavala

et al. 2015

Applied Radiation and Isotopes

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“…Generally, the silicate minerals trapped in the intestines or shells (biogenic exoskeletons) of shellfi sh are considered responsible for the TL analysis results (AUTIO & PINNIOJA, 1990). However, there is experimental evidence that carbonate minerals (calcite) from the shell can be used for the identifi cation of such kinds of food (CARMICHAEL et al, 1994;CRUZ-ZARAGOZA et al, 2012). Upon irradiation, calcite (CaCO 3 ) produces TL glow curve peaks at 100, 270, and 340 °C (DULLER et al, 2009).…”

Section: Thermoluminescence Analysismentioning

confidence: 99%

“…Several researchers have used isolated silicate minerals to obtain reliable identifi cation results (AUTIO & PINNIOJA, 1990;SCHREIBER et al, 1994;SANDERSON et al, 1996;CRUZ-ZARAGOZA et al, 2012). Density separation is mostly used to obtain the required mineral fraction for TL analysis; however, the EN 1788 (EUROPEAN STANDARD, 2001) protocol suggests the use of acid hydrolysis pre-treatment as an alternative for fi sh and shellfi sh.…”

mentioning

confidence: 99%

The impact of mineral separation procedure on thermoluminescence analysis of non-irradiated dried fish and shellfish

Kim¹,

Shahbaz²,

Akram³

et al. 2015

Acta Alimentaria

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This study was aimed at evaluating the effi cacy of different mineral separation procedures to validate the EN1788 (2001) European Union standard protocol for better identifi cation of irradiated fi sh and shellfi sh. The silicate minerals were isolated with physical density separation method from two types of non-irradiated freeze-dried fi sh and shellfi sh that included Pacifi c saury (Cololabis saira), mackerel (Scomber japonicus), shrimp (Penaeidae metapenaeus), and mussel (Mytilus coruscus). Radiation-specifi c thermoluminescence (TL) peaks (glow curve 1) were observed between 150-250 °C. The peaks are typical for the irradiated food; despite the samples being not irradiated. Apparently it showed that the isolated minerals were contaminated with organic materials such as bone, etc. Acid-hydrolysis digestion was employed to remove the possible contaminants. The minerals obtained through alternative pre-treatment showed no TL curves in radiation specifi c temperature range. Moreover, acid hydrolysis extraction resulted in producing higher mineral yields and lower background luminescence. Results were also confi rmed by calculating TL ratios (glow curve 1/glow curve 2) to confi rm the irradiation history of samples. Furthermore, different time and temperature treatments on TL intensity of irradiated standard quartz (SiO 2 ) minerals showed that the acid-hydrolysis can be adjusted to 50 °C and 3 h for better luminescence determinations.

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Thermoluminescence analysis of irradiated oyster shells

Cited by 5 publications

References 17 publications

Food Safety Impacts from Post-Harvest Processing Procedures of Molluscan Shellfish

Food Safety Impacts from Post-Harvest Processing Procedures of Molluscan Shellfish

Photostimulated luminescence detection and radiation effects on cinnamon (Cinnamomum zeylanicum) spice

The impact of mineral separation procedure on thermoluminescence analysis of non-irradiated dried fish and shellfish

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