Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry.

ABSTRACT: Chemical compounds within tea (Camellia sinensis) are characterized by an extensive heterogeneity; some of them are crucial for their protective and defensive role in plants, and are closely connected to the benefits that the consumption of tea can provide. This paper is mainly focused on the characterization of polyphenols (secondary metabolites generally involved in defense against ultraviolet radiation and aggression by pathogens) and metals, extracted from nine Chinese tea samples, by integrating different mass spectrometry methodologies, LC-MS/MS in multiple reaction monitoring (MRM) and inductively coupled plasma mass spectrometry (ICP-MS). Our approach allowed to identify and compare forty polyphenols differently distributed in tea infusions at various fermentation levels. The explo

SUBMITTER: Pinto G 

PROVIDER: S-EPMC7353651 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature