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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. S1 — Aug. 28, 2005
  • pp: S188–S190

Changes of delayed luminescence spectra in rice of different polluted degree by Aspergillus flavus

Wenli Chen, Da Xing, Weigui Chen, and Yingliang Li  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue S1, pp. S188-S190 (2005)


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Abstract

Light-induced delayed luminescence (DL) of living organisms contains information on the quality of the living state of these organisms. Employing a LS-55 Luminescence Spectrometer, the changes of DL spectra of rice with Aspergillus flavus treating different time were observed. Rice with Aspergillus flavus treatment for a shorter time had a stronger intensity of DL. The polluted degree of Aspergillus showed a negative correlation with the intensity of DL. Comparing with the intensity of DL, we found that the concentration of aflatoxin in different polluted degree rice had negative correlation with the intensity of DL. We believe DL technique may be helpful in elaborating a fast, holistic, and non-invasive method for the rapid evaluation the polluted degree of rice by Aspergillus flavus.

© 2005 Chinese Optics Letters

OCIS Codes
(000.4920) General : Other life sciences
(170.6280) Medical optics and biotechnology : Spectroscopy, fluorescence and luminescence
(300.2140) Spectroscopy : Emission
(300.6170) Spectroscopy : Spectra
(350.5130) Other areas of optics : Photochemistry

Citation
Wenli Chen, Da Xing, Weigui Chen, and Yingliang Li, "Changes of delayed luminescence spectra in rice of different polluted degree by Aspergillus flavus," Chin. Opt. Lett. 3, S188-S190 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-S1-S188

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