TY - JOUR
T1 - Paper-based dots and smartphone for detecting counterfeit country eggs
AU - Ray, Rohitraj
AU - Goyal, Ayush
AU - Prabhu, Anusha
AU - Parekkh, Saumya
AU - Maddasani, Srinivasulu
AU - Mani, Naresh Kumar
N1 - Funding Information:
NKM and AP acknowledge the financial support from the Vision Group on Science and Technology, Government of Karnataka , India under SMYSR and RGS/F Scheme (Sanction Letter no.: KSTePS/VGST/SMYSR-2016–17/GRD-595/2017–18, KSTePS/VGSTRGS/F/GRD No.711/2017–18). AP acknowledges Indian Council of Medical Research (ICMR), India for providing Senior Research Fellowship (File no: 5/3/8/91/ITR-F/2020). NKM acknowledges the financial support received from the Science and Engineering Research Board (SERB), Department of Science and Technology, Govt of India, under Core Research Grant (CRG) Scheme (File number CRG/2020/003060). Dr. NKM specially thanks Dr. Praveen Kumar and Dr. Vijendra Prabhu for their fruitful discussions.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/3/1
Y1 - 2023/3/1
N2 - Herein, we present for the first time, the employment of paper-based devices for rapidly differentiating original country eggs from the plain broiler eggs that have been coated with tea to appear as the former. The devices leverage two types of phenomena involving the phenols present in tea in precisely 5 min, namely precipitation, which produces a well-defined dark bluish precipitate on the surface of the counterfeit country eggs or tea-coated broiler eggs and de-coloration, wherein the dried layer of tea coating present on the surface of the dummy country eggs get dissolved, thereby revealing the white colour of the plain broiler egg shell. To reduce the subjectivity, a smartphone application ‘Eggo’ has been developed which is capable of detecting the spots produced by both the methods using mobile's camera. Fourier Transform Infrared Spectroscopy (FTIR) analysis was performed to study the changes occurring on the shell surface. Such sophisticated yet simple technologies will revolutionize food fraud analysis.
AB - Herein, we present for the first time, the employment of paper-based devices for rapidly differentiating original country eggs from the plain broiler eggs that have been coated with tea to appear as the former. The devices leverage two types of phenomena involving the phenols present in tea in precisely 5 min, namely precipitation, which produces a well-defined dark bluish precipitate on the surface of the counterfeit country eggs or tea-coated broiler eggs and de-coloration, wherein the dried layer of tea coating present on the surface of the dummy country eggs get dissolved, thereby revealing the white colour of the plain broiler egg shell. To reduce the subjectivity, a smartphone application ‘Eggo’ has been developed which is capable of detecting the spots produced by both the methods using mobile's camera. Fourier Transform Infrared Spectroscopy (FTIR) analysis was performed to study the changes occurring on the shell surface. Such sophisticated yet simple technologies will revolutionize food fraud analysis.
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U2 - 10.1016/j.foodchem.2022.134484
DO - 10.1016/j.foodchem.2022.134484
M3 - Article
AN - SCOPUS:85139306156
SN - 0308-8146
VL - 403
JO - Food Chemistry
JF - Food Chemistry
M1 - 134484
ER -