Recyclable One-Step Extraction and Characterization of Intact Melanin from Alpaca Fibers

Melanin, a ubiquitous natural pigment, has attracted much attention in energy and nanotechnology areas in recent years. With the increasing demand for high-quality melanin materials and sustainable experimental environment, this study was conducted to achieve melanin with intact structure through re...

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Bibliographic Details
Published inFibers and polymers Vol. 19; no. 8; pp. 1640 - 1646
Main Authors Liang, Yujia, Han, Qi, Byrne, Nolene, Sun, Lu, Wang, Xungai
Format Journal Article
LanguageEnglish
Published Seoul The Korean Fiber Society 01.08.2018
Springer Nature B.V
한국섬유공학회
Subjects
Chemistry
Chemistry and Materials Science
Ionic liquids
Melanin
Nanotechnology
NMR
Nuclear magnetic resonance
Polymer Sciences
Reproducibility
Structural damage
섬유공학
Recyclable production
Ionic liquid treatment
Molecular structure
Natural melanin
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Summary:Melanin, a ubiquitous natural pigment, has attracted much attention in energy and nanotechnology areas in recent years. With the increasing demand for high-quality melanin materials and sustainable experimental environment, this study was conducted to achieve melanin with intact structure through recyclable extraction method using ionic liquid (IL). Melanin extracted from base dissolution and acid isolation (BA) method and acid hydrolysis (AH) method were also used for comparison. SEM and 13 C-NMR characterizations indicated that IL treatment has retained the original structure of melanin while other methods caused particle damage to various degrees. In addition, the recycled IL (up to five times) showed good reproducibility, and the performance of extracted melanin at the 5th cycle was well-maintained.
ISSN:1229-9197
1875-0052
DOI:10.1007/s12221-018-8144-9