Abstract

A new method for discrimination analysis of adulterated milk and pure milk is proposed by combining two-dimensional correlation spectroscopy (2D-COS) with kernel orthogonal projection to latent structure (K-OPLS). Three adulteration types of milk with urea, melamine, and glucose were prepared, respectively. The synchronous 2D spectra of adulterated milk and pure milk samples were calculated. Based on the characteristics of 2D correlation spectra of adulterated milk and pure milk, a discriminant model of urea-tainted milk, melamine-tainted milk, glucose-tainted milk, and pure milk was built by K-OPLS. The classification accuracy rates of unknown samples were 85.7, 92.3, 100, and 87.5%, respectively. The results show that this method has great potential in the rapid discrimination analysis of adulterated milk and pure milk.

Raman spectroscopy combined with a support vector machine for differentiating between feeding male and female infants mother’s milk

Rahat Ullah, Saranjam Khan, Samina Javaid, Hina Ali, Muhammad Bilal, and Muhammad Saleem
Biomed. Opt. Express 9(2) 844-851 (2018)

Research on LIBS online monitoring criteria for aircraft skin laser paint removal based on OPLS-DA

Shaolong Li, Yikai Yang, Shaohua Gao, Dehui Lin, Guo Li, Yue Hu, and Wenfeng Yang
Opt. Express 32(3) 4122-4136 (2024)

Laser-induced breakdown spectroscopy-based geochemical fingerprinting for the rapid analysis and discrimination of minerals: the example of garnet

Daniel C. Alvey, Kenneth Morton, Russell S. Harmon, Jennifer L. Gottfried, Jeremiah J. Remus, Leslie M. Collins, and Michael A. Wise
Appl. Opt. 49(13) C168-C180 (2010)

Discussion on the validity of NIR spectral data in non-invasive blood glucose sensing

Wanjie Zhang, Rong Liu, Wen Zhang, Hao Jia, and Kexin Xu
Biomed. Opt. Express 4(6) 789-802 (2013)

Utilization of laser-induced breakdown spectroscopy, with principal component analysis and artificial neural networks in revealing adulteration of similarly looking fish fillets

Omnia Hamdy, Zienab Abdel-Salam, and Mohamed Abdel-Harith
Appl. Opt. 61(34) 10260-10266 (2022)