Urinary pesticide concentrations in French adults with low and high organic food consumption: results from the general population-based NutriNet-Santé.

An organic diet may reduce dietary exposure to pesticides but findings based on observational data are scant. We aimed to compare urinary pesticide concentrations between "organic" and "conventional" consumers from the NutriNet-Santé study. Organic food consumption was determined using a self-reported food frequency questionnaire.

High-throughput oenomics: shotgun polyphenomics of wines.

Red wine is a complex mixture of organic compounds including polyphenols and the use of ultra high performance liquid chromatography-electrospray ionization-quadrupole-time-of-flight-mass spectrometry (UHPLC-ESI-Q-TOF-MS) is a promising technique to better understand its quality and authenticity. To optimize the characterization of red wine, we developed an original and fast method that represents the first shotgun polyphenomics analysis of wine. We show that our new method yields significantly more information than previous fast methods such as direct injection-ESI-MS of wine, with the identification of 103 compounds in 2 min.

Identification of new flavan-3-ol monoglycosides by UHPLC-ESI-Q-TOF in grapes and wine.

Flavan-3-ol monoglycosides, having four aglycons (+)-catechin, (-)-epicatechin, (-)-epigallocatechin and epicatechin gallate monomeric units, are detected for the first time in Vitis vinifera L. cv. Merlot grape seeds and wine.