Crystals in Antheraea assamensis silkworm cocoon: Their removal, recovery and roles

Jasjeet Kaur; Rangam Rajkhowa; Takuya Tsuzuki; Xungai Wang

doi:10.1016/j.matdes.2015.08.148

Crystals in Antheraea assamensis silkworm cocoon: Their removal, recovery and roles

Jasjeet Kaur, Rangam Rajkhowa, Takuya Tsuzuki, Xungai Wang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Brick shaped mineral deposits or crystals are found in the shell of semi-domestic silk cocoon of Antheraea assamensis (A. assamensis). Effective removal and recovery of these crystals are important to understand their roles in the cocoon's protective function towards pupae. In this study, chemical and physical (ultrasonication) demineralisation methods were investigated for A. assamensis. It was found that the physical demineralisation method could effectively separate crystals without changing their shape and size and not effecting other components of the silk cocoon. The efficient recovery of the crystals, without any change in their chemical composition was confirmed based on FTIR, XRD and EDX techniques. Chemical demineralisation method was optimised and performed under milder conditions than reported in the past. It helped reeling of silk without much loss of strength or natural colour of silk fibre.

Original language	English
Pages (from-to)	236-244
Number of pages	9
Journal	Materials and Design
Volume	88
DOIs	https://doi.org/10.1016/j.matdes.2015.08.148
Publication status	Published - 25 Dec 2015

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title = "Crystals in Antheraea assamensis silkworm cocoon: Their removal, recovery and roles",

abstract = "Brick shaped mineral deposits or crystals are found in the shell of semi-domestic silk cocoon of Antheraea assamensis (A. assamensis). Effective removal and recovery of these crystals are important to understand their roles in the cocoon's protective function towards pupae. In this study, chemical and physical (ultrasonication) demineralisation methods were investigated for A. assamensis. It was found that the physical demineralisation method could effectively separate crystals without changing their shape and size and not effecting other components of the silk cocoon. The efficient recovery of the crystals, without any change in their chemical composition was confirmed based on FTIR, XRD and EDX techniques. Chemical demineralisation method was optimised and performed under milder conditions than reported in the past. It helped reeling of silk without much loss of strength or natural colour of silk fibre.",

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T2 - Their removal, recovery and roles

AU - Kaur, Jasjeet

AU - Rajkhowa, Rangam

AU - Tsuzuki, Takuya

AU - Wang, Xungai

PY - 2015/12/25

Y1 - 2015/12/25

N2 - Brick shaped mineral deposits or crystals are found in the shell of semi-domestic silk cocoon of Antheraea assamensis (A. assamensis). Effective removal and recovery of these crystals are important to understand their roles in the cocoon's protective function towards pupae. In this study, chemical and physical (ultrasonication) demineralisation methods were investigated for A. assamensis. It was found that the physical demineralisation method could effectively separate crystals without changing their shape and size and not effecting other components of the silk cocoon. The efficient recovery of the crystals, without any change in their chemical composition was confirmed based on FTIR, XRD and EDX techniques. Chemical demineralisation method was optimised and performed under milder conditions than reported in the past. It helped reeling of silk without much loss of strength or natural colour of silk fibre.

AB - Brick shaped mineral deposits or crystals are found in the shell of semi-domestic silk cocoon of Antheraea assamensis (A. assamensis). Effective removal and recovery of these crystals are important to understand their roles in the cocoon's protective function towards pupae. In this study, chemical and physical (ultrasonication) demineralisation methods were investigated for A. assamensis. It was found that the physical demineralisation method could effectively separate crystals without changing their shape and size and not effecting other components of the silk cocoon. The efficient recovery of the crystals, without any change in their chemical composition was confirmed based on FTIR, XRD and EDX techniques. Chemical demineralisation method was optimised and performed under milder conditions than reported in the past. It helped reeling of silk without much loss of strength or natural colour of silk fibre.

KW - Antheraea assamensis

KW - Crystals

KW - Demineralisation

KW - Protection

KW - Semi-domestic

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VL - 88

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JO - Materials and Design

JF - Materials and Design

ER -

Crystals in Antheraea assamensis silkworm cocoon: Their removal, recovery and roles

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