Chitosan Film as a Replacement for Conventional Sulphur Dioxide Treatment of White Wines: A ¹H NMR Metabolomic Study.

ABSTRACT: Chitosan-genipin (Ch-Ge) films have been proposed for the replacement of sulfur dioxide (SO₂) in white wines preservation to circumvent the adverse health consequences caused by SO₂ intake. To assess the effects of different-sized Ch-Ge films (25 and 100 cm²) on wine composition compared to SO₂-treated and untreated wines, nuclear magnetic resonance metabolomics was applied. Relative to SO₂, 100 cm² films induced significant changes in the levels of organic acids, sugars, amino acids, 5-hydroxymethylfurfural, among other compounds, while 25 cm² films appeared to induce only small variations. The observed metabolite variations were proposed to arise from the mitigation of fermentative processes, electrostatic inter

SUBMITTER: Rodrigues JA 

PROVIDER: S-EPMC9655381 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature