[Study on melanin from taihe silky fowl and its complexes with Cu2+, Fe3+ ions by IR spectrum].

OBJECTIVE: The interaction between Cu2+, Fe3+ and Melanin from Taihe Silky fowl for different pH values was investigated in heterogeneous system. METHODS: The IR spectrum of melanin and its complexes with Cu2+, Fe3+ ions was determined. RESULTS: The carbonyl group of melanin may interact with metals. CONCLUSION: Taihe Silky fowl melanin is the mixture of pheomelanin and isomelanin.