Contribution in an anthology

Appeared in: Steviol glycosides

Editor list: Galanakis, C.M.

Publication year: 2021

Pages: 103-132

ISBN: 978-0-12-820060-5

eISBN: 978-0-12-820401-6

DOI Link: https://doi.org/10.1016/B978-0-12-820060-5.00005-4

Abstract: 

New food products and diverse formulations containing the regulated steviol glycoside(s) as well as Stevia extracts of Stevia leaves have been introduced to the global market. The upcoming multitude of such food products, and also their falsification and adulteration, have an impact on food analysis. Robust high-throughput methods that cope with different food matrices are required for food control to ensure food safety. The analysis of steviol glycosides is mainly performed by high-performance liquid chromatography or high-performance thin-layer chromatography (HPTLC). Mass spectrometry is used for detection when evaluation of the UV absorbance is challenged by matrix interferences. HPTLC methods use a simple derivatization step to detect selectively the steviol glycosides. If needed, the recording of mass spectra follows. Further techniques like capillary electrophoresis, near-infrared spectroscopy, nuclear magnetic resonance spectroscopy, and enzymatic and electroanalytical methods have been reported. Among other areas, performance data, efficiency, robustness with regard to different sample matrices, and relevant sample preparations are discussed. Important analytical techniques are compared with regard to routine analysis.

Harvard Citation style: Morlock, G., Wasik, A. and Zimmermann, B. (2021) Analysis, in Galanakis, C. (ed.) Steviol glycosides. London: Academic Press, pp. 103-132. https://doi.org/10.1016/B978-0-12-820060-5.00005-4

APA Citation style: Morlock, G., Wasik, A., & Zimmermann, B. (2021). Analysis. In Galanakis, C. (Ed.), Steviol glycosides (pp. 103-132). Academic Press. https://doi.org/10.1016/B978-0-12-820060-5.00005-4