Rapid authentication of edible bird's nest by FTIR spectroscopy combined with chemometrics.
J Sci Food Agric
; 98(8): 3057-3065, 2018 Jun.
Article
em En
| MEDLINE
| ID: mdl-29194631
ABSTRACT
BACKGROUND:
Edible bird's nests (EBNs) have been traditionally regarded as a kind of medicinal and healthy food in China. For economic reasons, they are frequently subjected to adulteration with some cheaper substitutes, such as Tremella fungus, agar, fried pigskin, and egg white. As a kind of precious and functional product, it is necessary to establish a robust method for the rapid authentication of EBNs with small amounts of samples by simple processes. In this study, the Fourier transform infrared spectroscopy (FTIR) system was utilized and its feasibility for identification of EBNs was verified.RESULTS:
FTIR spectra data of authentic and adulterated EBNs were analyzed by chemometrics analyses including principal component analysis, linear discriminant analysis (LDA), support vector machine (SVM) and one-class partial least squares (OCPLS). The results showed that the established LDA and SVM models performed well and had satisfactory classification ability, with the former 94.12% and the latter 100%. The OCPLS model was developed with prediction sensitivity of 0.937 and specificity of 0.886. Further detection of commercial EBN samples confirmed these results.CONCLUSION:
FTIR is applicable in the scene of rapid authentication of EBNs, especially for quality supervision departments, entry-exit inspection and quarantine, and customs administration. © 2017 Society of Chemical Industry.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Contaminação de Alimentos
/
Espectroscopia de Infravermelho com Transformada de Fourier
/
Análise de Alimentos
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article