ArticleScientific reports2026
Extraction and characterization of a novel glycosylated naphthazarin pigment from mangrove Aspergillus unguis AUMC15225.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Natural naphthoquinone (NQ) dyes are gaining attention as safer and more sustainable alternative to synthetic colorants, and their glycosylation can enhance solubility and stability. In the present study, a novel, extracellular, highly stable, glycosylated derivative of NQ pigments (2-O-β-L-arabinofuranosyl-5,8-dihydroxy-1,4-naphthoquinone, C₁₅H₁₆O₈) was produced by the mangrove epiphytic fungus, Aspergillus unguis. Pigment production kinetics and solubility testing indicated the secondary metabolic behavior and high polarity of the pigment. HPLC separated the pigment into two isomeric fractions with retention times of 4.840 and 6.020 min. Structural characterization was supported by several analyses, with a λ
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