Amino Acid Betaxanthins: Absorption, Fluorescence, And Stability.

ABSTRACT: Betaxanthins are natural pigments responsible for the vivid yellow coloration and intrinsic fluorescence of flowering succulent plants within the order Caryophyllales. Though less extensively studied than other plant pigments classes, betaxanthins hold potential for application as safe food dyes, solar cell absorbers, antioxidants, and genetically encodable fluorophores. Herein, we report the absorption spectra, fluorescence properties, and hydrolysis rate constants of 24 distinct betaxanthins obtained by semisynthesis from betalamic acid and a variety of amino acids. The molecular library includes all known derivatives from amino acids present in plants and fungi, as well as cysteine-betaxanthin (which remains undetected in nature) and a selection of model non-natural analogues. St

SUBMITTER: Esteves LC 

PROVIDER: S-EPMC12560082 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature