Qiu-ling ZHAO, Ya-jing SHI, Zhen-yu ZHANG. Rapid Determination of Canthaxanthin in Egg Yolk by First Order Derivative Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2020, 40(11): 3537
- Spectroscopy and Spectral Analysis
- Vol. 40, Issue 11, 3537 (2020)
Fig. 1. Ultraviolet-visible absorption spectra of the yolk extract and canthaxanthin
a , b , c are the first, second and third yolk extracts respectively; d , e and f are the standard solution of canthaxanthin with concentrations of 1, 10 and 20 μg·mL-1, respectively
Fig. 2. The first derivative spectra of yolk extract and canthaxanthin
a , b , c are the first, second and third yolk extracts respectively; d , e and f are the standard solution of canthaxanthin with concentrations of 1, 10 and 20 μg·mL-1, respectively
Fig. 3. (a) is the ultraviolet-visible absorption spectrum of the yolk extract with canthaxanthin; (b) is the first order derivative spectrum of (a)
g , h , i , j , k , l and m represent canthaxanthin with the concentrations of 0, 2.67, 5.33, 8.00, 10.67, 13.10 and 17.68μg·mL-1, respectively
Fig. 4. Standard curve (a) and linear regression equation of canthaxanthin (b) in egg yolk extract
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Table 1. Standard-added recovery experiments of the samples (n =5)
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