Spatially resolved metabolomics reveals variety-specific metabolic changes in banana pulp during postharvest senescence.

ABSTRACT: Banana is one of most popular fruits globally due to health-promoting and disease-preventing effects, yet little is known about in situ metabolic changes across banana varieties. Here, we integrated gold nanoparticle (AuNP)-assisted laser desorption/ionization mass spectrometry imaging (LDI-MSI) and metabolomics to investigate the spatiotemporal distribution and levels of metabolites within Brazil and Dongguan banana pulps during postharvest senescence. Metabolomics results indicated that both postripening stages and banana varieties contribute to metabolite levels. Benefiting from improved ionization efficiency of small-molecule metabolites and less peak interference, we visualized the spatiotemporal distribution of sugars, amino acids (AAs) and monoamines within pulps using AuNP-a

SUBMITTER: Yin Z 

PROVIDER: S-EPMC9234350 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature