Identification of silk components in the bombycoid moth Andraca theae (Endromidae) reveals three fibroin subunits resembling those of Bombycidae and Sphingidae

Kmet, Peter; Kucerova, Lucie; Sehadova, Hana; Chia-hsiang Wu, Bulah; Wu, Yueh-Lung; Zurovec, Michal

doi:10.1016/j.jinsphys.2023.104523

Journal of Insect Physiology

2023

DOI: 10.1016/j.jinsphys.2023.104523

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Identification of silk components in the bombycoid moth Andraca theae (Endromidae) reveals three fibroin subunits resembling those of Bombycidae and Sphingidae

Peter Kmet,

Lucie Kucerova,

Hana Sehadova

et al.

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Cited by 3 publications

References 34 publications

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A comprehensive gene expression analysis of the unique three-layered cocoon of the cecropia moth, Hyalophora cecropia

Rouhová,

Podlahová,

Kmet

et al. 2024

Insect Biochemistry and Molecular Biology

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A comprehensive gene expression analysis of the unique three-layered cocoon of the cecropia moth, Hyalophora cecropia

Rouhová,

Podlahová,

Kmet

et al. 2024

Insect Biochemistry and Molecular Biology

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Degumming and characterization of Bombyx mori and non-mulberry silks from Saturniidae silkworms

Schmidt,

Puchalla,

Schendzielorz

et al. 2023

Sci Rep

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In this study, cocoons and degummed silk samples of Bombyx mori and twenty Saturniidae species of the genera Actias, Attacus, Argema, Antheraea, Caligula, Callosamia, Cricula, Epiphora, Hyalophora, Loepa, Samia and Saturnia are studied to gain an insight into their morphology, chemical composition and physical structure. For this purpose, silk samples are characterized by optical microscopy and FTIR spectroscopy in attenuated total reflection mode (ATR-FTIR spectroscopy). Furthermore, degummed silk samples are analyzed for their amino acid (AA) composition by GC-FID. In the course of method development, various degumming methods are tested using alkalis, citric acid, enzymes and detergents. A mixture of 0.1% sodium carbonate and 2.5% ethylenediamine proves to be an effective agent for degumming Saturniidae and B. mori cocoons. After hydrolysis of the fibroin filaments with 6 N hydrochloric acid and derivatization with propyl chloroformate, fifteen AAs are identified and qualified. This method shows a satisfactory overall analytical performance with an average recovery rate of 95% at the medium concentration level. The chemical composition of the different silks was considered comparatively. Within a genus, the analyses usually show a high degree of similarity in AA composition and the resulting structural indices, whereas differences are found between genera.

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Characterization of Recent and Historical Silks: Effects of Silk Processing on Chemical Composition and Amino Acid Racemization

Schmidt,

Koch,

Puchalla

et al. 2024

Journal of Natural Fibers

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Identification of silk components in the bombycoid moth Andraca theae (Endromidae) reveals three fibroin subunits resembling those of Bombycidae and Sphingidae

Cited by 3 publications

References 34 publications

A comprehensive gene expression analysis of the unique three-layered cocoon of the cecropia moth, Hyalophora cecropia

A comprehensive gene expression analysis of the unique three-layered cocoon of the cecropia moth, Hyalophora cecropia

Degumming and characterization of Bombyx mori and non-mulberry silks from Saturniidae silkworms

Characterization of Recent and Historical Silks: Effects of Silk Processing on Chemical Composition and Amino Acid Racemization

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