88C-30 |
FT-Raman Spectroscopy for detection of maple syrup adulteration with sugars from beet and cane |
M. M. PARADKAR, S. Sakhamuri, and J. M. K. Irudayaraj. Department of Agricultural and Biological Engineering, Pennsylvania State University, 220, Agricultural Engineering Building, University Park, PA 16802 Maple syrup is always a target for adulteration due to its simple composition, predominantly sucrose. It’s very easy to adulterate maple syrup with sugars from cheap sources such as beet and cane. The existing methods based on isotope ratios are more accurate but time consuming and expensive, hence there is need of simple, rapid, economical and reproducible method for detection of this adulteration. FT-Raman spectroscopy is vastly developing as a tool in quality evaluation. This technique is simple, rapid and hence use of it for the purpose of detection of maple syrup adulterations. FT-Raman spectra adulterated samples were evaluated using the Nicolet FT-Raman spectrometer. Range of 400-1500 cm -1and 2800 to 3000 cm -1are found to be of great interest. These regions were taken in combination for multivariate analysis. The chemometric data obtained after analysis shows that FT-Raman can be used to detect maple syrup adulteration with very high correlation. The advantage of Raman over FTIR and NIR is its high resolution and detailed structural information as FTIR but yet with the simplicity of sample preparation as in NIR.
Session 88C, Food Engineering: Physical and Chemical Properties
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