Unique distribution of ellagitannins in ripe strawberry fruit revealed by mass spectrometry imaging.

ABSTRACT: Ellagitannins (ETs) are hydrolysable tannins composed of a polyol core, primarily glucose, which is esterified with hexahydroxydiphenic acid (HHDP), and in some cases, gallic acid. ETs are the major phenolic compounds found in strawberries and may contribute to the health-related properties of strawberries, because of their strong antioxidative activity. However, their distribution in the strawberry fruit remains unclear. In this study, matrix-assisted laser desorption/ionization-mass spectrometry imaging (MALDI-MSI) was used to visualize ETs in ripe strawberry fruits. Five peaks, corresponding to the m/z values of ET [M-H]^- ions detected in the MALDI-MS spectrum of strawberry extracts, were identified as strictinin, pedunculagin, casuarictin, davuriicin M₁, an

SUBMITTER: Enomoto H 

PROVIDER: S-EPMC8606305 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature