Analysis of mixed ghee by using Raman spectroscopy
Year: 2023
Type: article
Abstract: As the problem of product adulteration has always existed in the ghee industry, there is an urgent need exists for a reliable and rapid method to distinguish the authenticity of ghee. In this study, adulterated ghee samples with different concentrations were identified by high-resolution Raman spectroscopy combined with multivariate data analysis. The band differences of 1007, 1156, and 1520 cm−1 assigned to β-carotene and 1656 cm−1 assigned to CLA in the Raman spectra of ghee were investigated. The partial least squares discrimination analysis (PLS-DA) model established in the whole spectral range was able to identify the yak ghee samples adulterated with cattle-yak ghee of more than 5% mass fraction, and the total correctness of both the training and prediction sets was 100%. The results demonstrated that Raman spectroscopy combined with chemometric methods has a broad application potential in the identification of adulterated ghee products as a functional analysis technique for rapid detection.
Source: LWT
Authors: X.L. Liang, Z.C. Zhang, B. Ding, Z.R. Ma, J.T. Yang, G.T. Ding, H.N. Liu
Institution: Northwest Minzu University
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,250
OpenAlex ID: W4386800533