Natural Dye and Tannin Safety Assessment
topic
Natural dye safety assessment screens plant-derived colorants including indigo, madder, weld, and oak gall tannins for the presence of restricted substances using HPLC-DAD and LC-MS profiling, evaluating phototoxic anthraquinone derivatives, allergenic oak moss compounds, and microbial contamination of botanical dye preparations used in artisanal and organic textile dyeing.
Role
Addresses the misconception that natural origin guarantees chemical safety by identifying specific toxic or allergenic compounds in botanical dye materials, enabling sustainable natural dyeing practices that avoid phototoxic and sensitising plant secondary metabolites in skin-contact textile products.