Frozen and defrosted fruit revealed with X-ray dark-field radiography

A novel non-destructive method for distinguishing frozen and defrosted fruit and berries using X-ray dark-field radiography is proposed. In this proof-of-principle study we are able to discern between the raw and frozen state of two kinds of berries and a piece of mandarin as well as between the raw...

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Bibliographic Details
Published in:Food control 2014-05, Vol.39, p.222-226
Main Authors: Nielsen, Mikkel Schou, Christensen, Lars Bager, Feidenhans'l, Robert
Format: Article
Language:English
Subjects:
Berries and fruits
Biological and medical sciences
Food industries
Freeze injuries
Fundamental and applied biological sciences. Psychology
General aspects
Hygiene and safety
X-ray dark-field radiography
X-ray radiography
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Summary:A novel non-destructive method for distinguishing frozen and defrosted fruit and berries using X-ray dark-field radiography is proposed. In this proof-of-principle study we are able to discern between the raw and frozen state of two kinds of berries and a piece of mandarin as well as between the raw and defrosted state of one of the berries. Contrast-to-noise (CNR) values of around 2.5 are obtained with X-ray dark-field radiography whereas almost no contrast is found with conventional X-ray radiography with CNR values around 0.2.
ISSN:0956-7135
1873-7129
DOI:10.1016/j.foodcont.2013.11.019