Delayed luminescence spectra detection of AflatoxinB1 contamination in whole rice

WenLi Chen D.D.S.; Zhou Quan; Da Xing

doi:10.1117/12.741287

1 May 2007 Delayed luminescence spectra detection of AflatoxinB1 contamination in whole rice

WenLi Chen D.D.S., Zhou Quan, Da Xing

Proceedings Volume 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine; 653429 (2007) https://doi.org/10.1117/12.741287
Event: Fifth International Conference on Photonics and Imaging in Biology and Medicine, 2006, Wuhan, China

Abstract

Employing a luminescence spectrometer the usefulness of light-induced delayed luminescence (DL) for the detection of aflatoxinB1 (AfB1) contamination in whole rice was studied. Rice was artificially contaminated with Aspergillus flavus (7.5×10⁵ conidia/ml) and incubated for 0 - 72 h. The DL spectra of contaminated rice were obtained by a luminescence spectrometer. The correlation between the spectra and contamination levels was established. The DL intensity has a negative correlation with the AfB1 concentration. The results suggested that the DL technique might be useful for the rapid and non-invasive evaluation of AfB1 contamination levels in whole rice.

Citation Download Citation

WenLi Chen D.D.S., Zhou Quan, and Da Xing "Delayed luminescence spectra detection of AflatoxinB1 contamination in whole rice", Proc. SPIE 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine, 653429 (1 May 2007); https://doi.org/10.1117/12.741287

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