title: NMR spectroscopic study of the Murex trunculus dyeing process.
abstract: It is widely accepted that indigo dyes derived from Murex trunculus were used to produce the biblical dyes tekhelet and argaman. We describe a method of following the debromination of natural leucoindigos and their binding to wool using NMR spectroscopy. Debromination is observed prior to reaction with the wool and prior to oxidation. Binding to the wool is shown to occur prior to oxidation. NMR allows the dyeing process to be followed. This, in principle, could be used to correct problems during dyeing that would increase the reliability of the process.
authors.affiliation: Ulpanat Zvia, 30 Derech Kedem, Ma'ale Adummim 98452, Israel.
authors.forename: Rina C
authors.initials: RC
authors.lastname: Hoffman
authors.forename: Reut C
authors.initials: RC
authors.lastname: Zilber
authors.forename: Roy E
authors.initials: RE
authors.lastname: Hoffman
mesh_terms: D000818:Animals; D004396:Coloring Agents / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000592:standards; D015394:Molecular Structure; D008974:Mollusca / Q000737:chemistry*; D010084:Oxidation-Reduction; D012015:Reference Standards; D013237:Stereoisomerism
chemical_list: D004396:Coloring Agents