The paper describes the development of a targeted quantitative method for the analysis of policosanols in hemp inflorescence. Policosanols are long chain aliphatic alcohols, with carbon chains typically in the range 20–36, with interesting biological activities. These compounds are typically separated by gas chromatography and only a few methods employ liquid chromatography for policosanols. In both cases, methods always include the derivatization of policosanols. In this study, policosanols were separated by ultra-high performance liquid chromatography without any derivatization and detected using high resolution mass spectrometry by formation of lithiated adducts. The procedure was optimized and a quantitative method was validated for the most abundant policosanols (with C24, C26, C27, C28, and C30 chain lengths) in industrial hemp inflorescence extracts. The method was used for the quantitative analysis of policosanols in five hemp types. Hemp wax was found rich in these compounds, especially C26 and C28 policosanols, which may prove useful for revalorization of wax by-products. Finally, the acquired data were also used to expand the search to the untargeted qualitative analysis of policosanols using Compound Discoverer. The untargeted method allowed the annotation of underivatized policosanols up to C33.

Targeted and untargeted characterization of underivatized policosanols in hemp inflorescence by liquid chromatography-high resolution mass spectrometry / Montone, Carmela Maria.; Aita, Sara elsa; Cannazza, Giuseppe; Cavaliere, Chiara; Cerrato, Andrea; Citti, Cinzia; Mondello, Luigi; Piovesana, Susy; Laganà, Aldo; Capriotti, Anna Laura. - In: TALANTA. - ISSN 0039-9140. - 235:(2021). [10.1016/j.talanta.2021.122778]

Targeted and untargeted characterization of underivatized policosanols in hemp inflorescence by liquid chromatography-high resolution mass spectrometry

Montone, Carmela Maria.;Aita, Sara elsa;Cavaliere, Chiara;Cerrato, Andrea;Piovesana, Susy
;
Laganà, Aldo;Capriotti, Anna Laura
2021

Abstract

The paper describes the development of a targeted quantitative method for the analysis of policosanols in hemp inflorescence. Policosanols are long chain aliphatic alcohols, with carbon chains typically in the range 20–36, with interesting biological activities. These compounds are typically separated by gas chromatography and only a few methods employ liquid chromatography for policosanols. In both cases, methods always include the derivatization of policosanols. In this study, policosanols were separated by ultra-high performance liquid chromatography without any derivatization and detected using high resolution mass spectrometry by formation of lithiated adducts. The procedure was optimized and a quantitative method was validated for the most abundant policosanols (with C24, C26, C27, C28, and C30 chain lengths) in industrial hemp inflorescence extracts. The method was used for the quantitative analysis of policosanols in five hemp types. Hemp wax was found rich in these compounds, especially C26 and C28 policosanols, which may prove useful for revalorization of wax by-products. Finally, the acquired data were also used to expand the search to the untargeted qualitative analysis of policosanols using Compound Discoverer. The untargeted method allowed the annotation of underivatized policosanols up to C33.
2021
industrial hemp; policosanols; targeted analysis; untargeted analysis; long chain alcohols; fatty alcohols
01 Pubblicazione su rivista::01a Articolo in rivista
Targeted and untargeted characterization of underivatized policosanols in hemp inflorescence by liquid chromatography-high resolution mass spectrometry / Montone, Carmela Maria.; Aita, Sara elsa; Cannazza, Giuseppe; Cavaliere, Chiara; Cerrato, Andrea; Citti, Cinzia; Mondello, Luigi; Piovesana, Susy; Laganà, Aldo; Capriotti, Anna Laura. - In: TALANTA. - ISSN 0039-9140. - 235:(2021). [10.1016/j.talanta.2021.122778]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1568939
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