Journal
FOOD CONTROL
Volume 130, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2021.108327
Keywords
Acacia honey; Authentication; Fluorescence spectroscopy; Fluorescence intensity; Lifetime
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Funding
- National NaturalScience Foundation of China [31672499]
- Shandong Province Modern Agricultural Technology System [SDAIT-24-05]
- Jinan Customs Scientific Research Project [2019JK006]
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The potential of multiple fluorescence spectroscopy detection methods for the authentication of acacia honey was evaluated by assessing the fluorescence intensity, three-dimensional fluorescence spectra, and fluorescence lifetime. The results showed significant differences in fluorescence parameters among acacia honey, concentrated acacia honey, and syrups, making it a reliable and cost-effective method for authentication.
The potential of multiple fluorescence spectroscopy detection methods for the authentication of Robinia pseudoacacia L. honey (acacia honey) was evaluated. Fluorescence intensity (excitation wavelength: 280 nm), threedimensional fluorescence spectra (excitation wavelengths: 200-460 nm; emission wavelengths: 260-560 nm), and fluorescence lifetime were recorded respectively to distinguish acacia honey (n = 160 samples harvested from eight regions of Shandong province in North China), concentrated acacia honey, and syrups. The fluorescence intensities, three-dimensional fluorescence spectra, and fluorescence lifetime of acacia honey, concentrated acacia honey, and syrups showed significant difference. Acacia honey samples had a higher fluorescence intensity and peak values as well as shorter fluorescence lifetime. The combination of the three fluorescence spectroscopy detection methods could easily distinguish acacia honey, concentrated acacia honey and syrups, and multiple fluorescence parameters gave advantage to distinguish adulteration of acacia honey, which represents a reliable, rapid, non-destructive, and low-cost method for authenticating acacia honey.
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