Identification and dosimetry of irradiated walnuts (<i>Juglans regia</i>) using EPR

Maghraby, Ahmed M.; Salama, E.; Sami, Abdul; Mansour, A.; El-Sayed, Mahmoud

doi:10.1080/10420150.2011.608358

Cited by 11 publications

(4 citation statements)

References 11 publications

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“…ESR has also managed not only to identify irradiated or nonirradiated walnuts using walnut pulp or husk, but also to determine the irradiation dose in a range of 0 to 10 kGy (Maghraby, Salama, Sami, Mansour, & El‐Sayed, ). Similar results were reported for γ‐ray‐irradiated oregano ( Origanum vulgare L.) (Sádecká & Polovka, ).…”

Section: Isotopic Techniquesmentioning

confidence: 99%

Nontargeted Analytical Methods as a Powerful Tool for the Authentication of Spices and Herbs: A Review

Oliveira

Cruz-Tirado

Barbin

2019

Comp Rev Food Sci Food Safe

110

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Food fraud in herbs and spices is an important topic, which has led to new technologies being studied as potential tools for fraud identification. Nontargeted technologies have proven to be a useful tool for the authentication of herbs and spices. The present review focuses on the use of near‐infrared, hyperspectral imaging, Fourier‐transform infrared, Raman, nuclear magnetic resonance, and electron spin resonance spectroscopy for the authentication of spices, which includes the determination of origin and irradiated spices and the identification of adulterants. The methods developed based on vibrational spectroscopy combined with chemometric techniques seem to be promising tools for determining the presence of adulterants and contaminants in herbs and spices. On the other hand, nuclear magnetic resonance seems to be the most efficient technology to determine the origin of herbs and spices although, for some cases, studies with near‐infrared spectroscopy can be a viable substitute. Electron spin resonance spectroscopy is the technique par excellence used for the authentication of irradiated herbs and spices, so its use should be expanded to many more spices’ varieties. Portable devices are preferred by those involved in the food industry, due to its manageability and low cost. Data fusion and big data are shown as promising tools for spice fraud control. In conclusion, spectroscopic techniques show a great efficiency to authenticate spices, although their evaluation must be expanded to other spice varieties, to new strategies of data analysis (as data fusion and big data), and to the use of portable devices.

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Section: Isotopic Techniquesmentioning

confidence: 99%

Nontargeted Analytical Methods as a Powerful Tool for the Authentication of Spices and Herbs: A Review

Oliveira

Cruz-Tirado

Barbin

2019

Comp Rev Food Sci Food Safe

110

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“…Despite these advantages, irradiation also causes damage in the molecular structure. Electron spin resonance (ESR) spectroscopy has been frequently used for identifying irradiation damage centers in many substances *Email: htuner@balikesir.edu.tr; htuner@hacettepe.edu.tr 62 H. Tuner (24)(25)(26)(27)(28)(29)(30)(31)(32). In this study, kinetic and structural features of the radicalic intermediates produced upon gamma irradiation and dosimetric features of CaAs were studied using ESR spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Determination of dosimetric and kinetic features of gamma irradiated solid calcium ascorbate dihydrate using ESR spectroscopy

Tuner

2013

Radiation Effects and Defects in Solids

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Effects of gamma radiation on solid calcium ascorbate dihydrate were studied using electron spin resonance (ESR) spectroscopy. Irradiated samples were found to present two specific ESR lines with shoulder at low and high magnetic field sides. Structural and kinetic features of the radicalic species responsible for experimental ESR spectrum were explored through the variations of the signal intensities with applied microwave power, variable temperature, high-temperature annealing and room temperature storage time studies. Dosimetric potential of the sample was also determined using spectrum area and measured signal intensity measurements. It was concluded that three radicals with different spectroscopic and kinetic features were produced upon gamma irradiation.

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“…Irradiation of hazelnut ensures the purity of possible pathogen and undesired microbes. [16]. It is of great importance to identify irradiated hazelnut, especially in cases of the absence of outer shells with a speed test; this helps the global hazelnut trade and ensures safe consumption.…”

Section: Introductionmentioning

confidence: 99%

Irradiated Hazelnut (Corylus avellana): Identification and Dose Assessment Using Electron Paramagnetic Resonance Spectroscopy

Maghraby,

Salama,

Mansour

et al. 2023

Asec 2023

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Identification and dosimetry of irradiated walnuts (Juglans regia) using EPR

Cited by 11 publications

References 11 publications

Nontargeted Analytical Methods as a Powerful Tool for the Authentication of Spices and Herbs: A Review

Nontargeted Analytical Methods as a Powerful Tool for the Authentication of Spices and Herbs: A Review

Determination of dosimetric and kinetic features of gamma irradiated solid calcium ascorbate dihydrate using ESR spectroscopy

Irradiated Hazelnut (Corylus avellana): Identification and Dose Assessment Using Electron Paramagnetic Resonance Spectroscopy

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