Melatonin (MEL) has been found in some medicinal and food plants, including grapevine, a commodity of particular interest for the production of wine, a beverage of economic relevance. It has also been suggested that MEL in wine may, at least in part, contribute to the health-promoting properties attributed to this beverage and, possibly, to other traditional Mediterranean foodstuffs. After a preliminary screening of 9 yeast strains in laboratory medium, three selected strains (Saccharomyces cerevisiae EC1118, Torulaspora delbrueckii CBS1146(T) and Zygosaccharomyces bailii ATCC36947(T) ) were inoculated in experimental musts obtained from 2 white (Moscato and Chardonnay) and 2 red (Croatina and Merlot) grape varieties. The production of MEL, melatonin isomers (MIs) and tryptophan ethyl ester (TEE) was monitored during the alcoholic fermentation. The screening showed that the three investigated strains produced the highest concentrations of MEL and two MIs in optimal growth conditions. However, MEL and MIs were not produced in oenological conditions, but the three strains synthesized high concentrations of a new MI and TEE in musts.

Yeast contribution to melatonin, melatonin isomers and tryptophan ethyl ester during alcoholic fermentation of grape musts / I. Vigentini, C. Gardana, D. Fracassetti, M. Gabrielli, R. Foschino, P. Simonetti, A. Tirelli, M. Iriti. - In: JOURNAL OF PINEAL RESEARCH. - ISSN 0742-3098. - 58:4(2015 May), pp. 388-396. [10.1111/jpi.12223]

Yeast contribution to melatonin, melatonin isomers and tryptophan ethyl ester during alcoholic fermentation of grape musts

I. Vigentini
Primo
;
C. Gardana
Secondo
;
D. Fracassetti;M. Gabrielli;R. Foschino;P. Simonetti;A. Tirelli
Penultimo
;
M. Iriti
Ultimo
2015

Abstract

Melatonin (MEL) has been found in some medicinal and food plants, including grapevine, a commodity of particular interest for the production of wine, a beverage of economic relevance. It has also been suggested that MEL in wine may, at least in part, contribute to the health-promoting properties attributed to this beverage and, possibly, to other traditional Mediterranean foodstuffs. After a preliminary screening of 9 yeast strains in laboratory medium, three selected strains (Saccharomyces cerevisiae EC1118, Torulaspora delbrueckii CBS1146(T) and Zygosaccharomyces bailii ATCC36947(T) ) were inoculated in experimental musts obtained from 2 white (Moscato and Chardonnay) and 2 red (Croatina and Merlot) grape varieties. The production of MEL, melatonin isomers (MIs) and tryptophan ethyl ester (TEE) was monitored during the alcoholic fermentation. The screening showed that the three investigated strains produced the highest concentrations of MEL and two MIs in optimal growth conditions. However, MEL and MIs were not produced in oenological conditions, but the three strains synthesized high concentrations of a new MI and TEE in musts.
grapes; melatonin; must fermentation; non-Saccharomyces yeasts; Vitis vinifera; wine
Settore AGR/16 - Microbiologia Agraria
Settore AGR/15 - Scienze e Tecnologie Alimentari
Settore BIO/09 - Fisiologia
Settore AGR/12 - Patologia Vegetale
mag-2015
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/289713
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