The presence of melatonin in plant foods is a relatively recent topics. Since nineties, there has been an ever-growing number of studies reporting melatonin in a variety of vegetables, fruits, cereals, seeds and medicinal herbs by different extraction protocols, identification and quantification techniques. More recently, melatonin has been reported also in wine, olive oil and beer. The most common analytical techniques used to detect melatonin in plant foods are both immunological, the radioimmunoassay (RIA) and enzyme-linked immunosorbent assay (ELISA), and chromatographic, high performance liquid chromatography (HPLC) with electrochemical (HPLC-EC) or fluorimetric (HPLC-F) detection. Additionally, mass-spectrometry (MS) identification represents a powerful tool for an accurate determination of melatonin in plant samples. Apart from the analytical techniques used, the chemical complexity of plant tissues and the physicochemical properties of melatonin may influence the analyses, determining, in some cases, opposing results. Furthermore, factors such as the characteristics of the place where plants were grown, if agrochemicals or chemical processes were employed in the vineyard, the light regime and the circadian behavior of the plant, the ripening stage and the type of tissue analyzed contribute to explain the lack of homogeneity in the data published on the melatonin levels in food plants.

Occurence and analysis of melatonin in food plants / M. Iriti, S. Vitalini, M. Rossoni, F. Faoro - In: Handbook of analysis of active compounds in functional food / [a cura di] L.M.L. Nollet, F. Toldrà. - Boca Raton (FL) : CRC Press, 2012. - ISBN 9781439815885. - pp. 651-661

Occurence and analysis of melatonin in food plants

M. Iriti
Primo
;
S. Vitalini;F. Faoro
Ultimo
2012

Abstract

The presence of melatonin in plant foods is a relatively recent topics. Since nineties, there has been an ever-growing number of studies reporting melatonin in a variety of vegetables, fruits, cereals, seeds and medicinal herbs by different extraction protocols, identification and quantification techniques. More recently, melatonin has been reported also in wine, olive oil and beer. The most common analytical techniques used to detect melatonin in plant foods are both immunological, the radioimmunoassay (RIA) and enzyme-linked immunosorbent assay (ELISA), and chromatographic, high performance liquid chromatography (HPLC) with electrochemical (HPLC-EC) or fluorimetric (HPLC-F) detection. Additionally, mass-spectrometry (MS) identification represents a powerful tool for an accurate determination of melatonin in plant samples. Apart from the analytical techniques used, the chemical complexity of plant tissues and the physicochemical properties of melatonin may influence the analyses, determining, in some cases, opposing results. Furthermore, factors such as the characteristics of the place where plants were grown, if agrochemicals or chemical processes were employed in the vineyard, the light regime and the circadian behavior of the plant, the ripening stage and the type of tissue analyzed contribute to explain the lack of homogeneity in the data published on the melatonin levels in food plants.
nutraceuticals ; melatonin ; grapevine ; detection
Settore AGR/12 - Patologia Vegetale
Settore AGR/15 - Scienze e Tecnologie Alimentari
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/178816
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