Exploring the chemistry and composition of black soldier fly eumelanin, a material for a circular economy

被引：3

作者：

Mostert, A. B. ^{[1
,2
,3
]}

Mattiello, S. ^{[3
,4
]}

Li, S. ^{[5
]}

Perna, G. ^{[6
]}

Lasalvia, M. ^{[6
]}

Ambrico, P. F. ^{[3
]}

Paulin, J. V. ^{[7
]}

Lima, J. V. M. ^{[7
]}

Graeff, C. F. O. ^{[7
]}

Phua, J. W. ^{[8
]}

Matta, M. ^{[5
]}

Surman, A. J. ^{[5
]}

Gunnella, R. ^{[4
]}

Ambrico, M. ^{[3
]}

机构：

[1] Swansea Univ, Dept Phys, Bay Campus,Fabian Way, Swansea SA1 8EN, W Glam, Wales

[2] Swansea Univ, Ctr Integrat Semicond Mat, Bay Campus,Fabian Way, Swansea SA1 8EN, W Glam, Wales

[3] CNR Inst Plasma Sci & Technol, Bari Branch, Via Amendola 122-D, I-70125 Bari, Italy

[4] Univ Camerino, Sch Sci & Technol, Via Madonna Carceri 9, I-62032 Camerino, Italy

[5] Kings Coll London, Dept Chem, Britannia House,7 Trinity St, London SE1 1DB, England

[6] Univ Foggia, Dept Clin & Expt Med, Via Napoli 20, I-71122 Foggia, Italy

[7] Sao Paulo State Univ UNESP, Sch Sci, Dept Phys & Meteorol, Bauru, SP, Brazil

[8] Insectta Pte Ltd, 8 Cleantech Loop, Singapore S637145, Singapore

来源：

MATERIALS ADVANCES | 2024年 / 5卷 / 22期

基金：

巴西圣保罗研究基金会;

关键词：

ELECTRON-SPIN RESONANCE; FREE-RADICAL NATURE; HUMAN HAIR MELANIN; CHEMICAL DEGRADATION; SEPIA MELANIN; ION-EXCHANGE; PHEOMELANIN; BINDING; CONDUCTIVITY; SPECTROSCOPY;

D O I：

10.1039/d4ma00825a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Eumelanin is a black-brown biopigment that provides photoprotection and pigmentation in mammals, insects, and invertebrates. It can be obtained by oxidative polymerisation of 5,6-dihydroxyindole (DHI) and its 2-carboxylic acid (DHICA). Due to its unique physical and chemical properties and its biocompatibility, eumelanin is a promising biomaterial for applications in energy storage, biomedicine, and sensing. However, poor solubility in water and lack of sustainable and low-cost sources of eumelanin have so far limited the full exploitation of this biomaterial. Insect farming is rapidly emerging as an alternative source of eumelanin. Unlike other types of eumelanin, BSF eumelanin, which is extracted from the exoskeleton of the black soldier fly (BSF, Hermetia illucens), is water-dispersible; however, its fundamental chemical properties are not completely understood. Here, we report the characterisation of BSF eumelanin using various spectroscopy techniques. Contrary to what is known about other insect eumelanins, which are believed to contain exclusively DHI, our results indicate that BSF eumelanin may contain both DHI and DHICA moieties. We discuss the potential reasons for this discrepancy.

引用

页码：8986 / 8999

页数：14