WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 4 - WAC - Oral presentations 9 Polyphenols in kombucha: Metabolomic analysis of biotransformations during fermentation

Polyphenols in kombucha: Metabolomic analysis of biotransformations during fermentation

Abstract

Kombucha is a non-alcoholic beverage made of sugared tea that is transformed by a symbiotic consortium of yeasts and bacteria. This beverage is increasingly produced at industrial scale, but its quality standards remain to be defined. Metabolomics analysis was carried out using FT-ICR-MS to understand the chemical transformations induced by the production phases and the type of tea on the non-volatile compounds of kombucha. Of the two production phases, the first phase of acidification in open vessel was the most impactful on molecular diversity, but tea type mainly influenced the global composition in polyphenol profiles. Black tea polyphenols were more impacted by microbial activity compared to green tea polyphenols. Independently from tea type, the first phase was also characterized by the release of gluconate from acetic acid bacteria metabolism. Gallate was also released and probably originated from the hydrolysis of ester bounds located in polymeric flavan-3-ols. The biotransformation of antioxidant polyphenols could positively impact their bioavailability for the consumer.

DOI:

Publication date: June 14, 2022

Issue: WAC 2022

Type: Article

Authors

Thierry, Tran, Rémy, Romanet, Chloé, Roullier-Gall, Antoine, Martin, Hervé, Alexandre,Cosette, Grandvalet, Tourdot-Maréchal, Philippe, Schmitt-Kopplin

Presenting author

Thierry, Tran – UMR PAM – Team VAlMiS

SATT Sayens, Chloé, Roullier-Gall | UMR PAM – Team VAlMiS, François, Verdier | Biomère | Biomère | Helmholtz Zentrum München | UMR PAM – Team VAlMiS | UMR PAM – Team VAlMiS | UMR PAM – Team VAlMiS 

Contact the author

Keywords

kombucha, metabolomics, polyphenols, bioavailability, fermentation

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Come proteggere un territorio viticolo: il punto di vista del giurista

La valanga di fango che si è abbattuta nel Salemitano e nell’Avellinese, provocando decine di vittime, è stata causata in larga misura dalle insufficienti opere idrauliche e dalla manca­ta manutenzione di antiquati canali idrici.

Sélection génétique des variétés originelles d’Arménie, berceau de la viticulture mondiale

Armenia, a small country in the South of the Caucasus, has been rediscovering its wine-growing past since the discovery in 2007 of archaeological wine-growing remains dating back around 8,000 years. They are among the oldest in the world. Despite a great diversity of grape varieties, Armenian winegrowers did not have sufficiently organized genetic collections to produce plants and satisfy the growing demand for planting.

Approche méthodologique concernant une caractérisation sensorielle de vins rouges de l’Anjou

Face à une concurrence de plus en plus rude entre pays producteurs, le vignoble de l’Anjou, déjà riche par sa diversité, souhaite renforcer sa logique de vins d’ A.O.C., notamment au travers de ses vins rouges.

Nutrient absorption in vines (Vitis vinifera L., cv. Tempranillo blanco) under two water management approaches in a semiarid region of the north of Spain

Two treatments were studied in vines of cv. Tempranillo blanco (Vitis vinifera L.) during the 2012-2018 period in an experimental plot located in Rincón de Soto (La Rioja, Spain). Rainfed treatment (R0) was compared with respect to an irrigation treatment (R2) equivalent to 30% of the crop evapotranspiration (ET0) from fruitset to harvest phenological stages. Pre-veraison irrigation ranged from 43 (2014) to 66 mm/m2 (2018) while post-veraison irrigation ranged from 37 (2017) to 115 mm/m2 (2012).The normalized difference vegetation index (NDVI) was assessed by measures of reflectance, nutrients were determined by analysis of petioles sampled at veraison, grape production was determined at harvest as well as renewable wood weight was assessed at pruning time.

Montpellier vine & wine sciences (M-WineS)

The Occitanie Region is the first vine-growing area in France: 270 000 hectares of vineyard and an annual production of 15 million hectoliters. Its annual income reaches 1 900 million euros, of which 900 million euros in export.The vine and wine sector is facing many issues: inputs reduction, adaptation to climate change, maintaining the production competitiveness, digital tools integration in production and transformation processes, and the production of quality wines meeting the consumer demand.