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19 November 2004 Ultraviolet and visible transmittance techniques for detection of quality in poultry eggs
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The principle of the ultraviolet and visible (UV-VIS) transmittance method to detect the quality of intact poultry egg and the characteristic of the transmittance spectra of the eggshell, egg content and intact egg were investigated in the spectra range of 200-800 nm using UV-VIS (UV-1100 nm)spectrophotometer at the air condition of 28±2°C and less than 55% R. H. The results indicated that eggshell thickness, different testing position and surface color of the eggshell influenced on spectroscopic characteristic of poultry eggs at a certain extent. There was obvious difference about transmittance spectra between the fertilized and non-fertilized eggs’ content. Two wave crests about 610 nm and 710 nm, and one wave trough about 650 nm in the spectral wavelength range of 500-760 nm were found in this research. A relationship between the intact egg transmittance and the storage time was developed and the correlation equation was established by linear regression analysis of SPSS10.0 with the correlation coefficients was 0.935 based on the sensitive spectral wavelength at the sensitive wavelength of 465 nm. There was significance at the α=0.01 level between the transmittance and the different storage time.
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Yande Liu, Aigou Ouyang, Chuzhi Zhong, and Yibin Ying "Ultraviolet and visible transmittance techniques for detection of quality in poultry eggs", Proc. SPIE 5587, Nondestructive Sensing for Food Safety, Quality, and Natural Resources, (19 November 2004);

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