The microbial degradation of silk: a laboratory investigation

Seves, A.M; Romanó, Maria; Maifreni, Tullia; Sora, Silvio; Ciferri, Orio

doi:10.1016/s0964-8305(98)00050-x

Cited by 101 publications

(49 citation statements)

References 14 publications

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“…It was three times lower than the emission determined for A. niger IHEM:2312 and C. globosum IHEM:6552. The obtained results are consistent with the literature wherein comparisons of the proteolytic and cellulolytic properties of the examined species of fungi have determined that the most active are A. niger and C. globosum [36][37][38][45][46][47]. The relatively low cellulolytic activity of T. viride IHEM:3170 is not typical for this species [40].…”

Section: Quantitative Analysissupporting

confidence: 89%

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Application of solid phase microextraction–gas chromatography–mass spectrometry method for the detection of active moulds on historical objects

Sawoszczuk

Syguła‐Cholewińska

2017

Herit Sci

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The main purpose of these studies was to assess the possibility of applying the technique of solid phase microextraction (SPME)-gas chromatography (GC)-mass spectrometry (MS) to detect the activity of moulds on historical objects, based on the analysis of microbial volatile organic compounds (MVOCs). The studies were performed for selected species of moulds, which were inoculated onto model samples of silk, cellulose, parchment and wool that had been prepared on microbiological medium, in vials for headspace sampling. After a few days of incubation, the MVOCs in the vials were sampled by using SPME fibre, and then they were analysed in the GC-MS system. The acquired chromatograms were qualitatively and quantitatively assessed, and it was ascertained that among the identified compounds are markers of mould activity which can be used to detect the vital mould growing on actual historic items. This usefulness of the method was additionally confirmed by analysis of MVOCs emitted by keratinolytically active mould inoculated on a sample of historical wool prepared in a Petri dish without a medium.

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Section: Quantitative Analysissupporting

confidence: 89%

“…A. niger IHEM:2312 was recognized as a fungus capable to decay the silk [36,37], A. fumigatus IHEM:1363 shows collagenolytic properties [38,39]. C. herbarum IHEM:5294 and T. viride IHEM:3170 have cellulolytic properties [3,40].…”

Section: Selection Of Mouldsmentioning

confidence: 99%

Application of solid phase microextraction–gas chromatography–mass spectrometry method for the detection of active moulds on historical objects

Sawoszczuk

Syguła‐Cholewińska

2017

Herit Sci

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“…This result reflected the difference of SF and sericin in amino acid sequences and structure. 25,26 The linear polypeptide structure of SF is mainly composed of highly solvent-exposed β-sheet 27 where the bulky Tyr residues favor in. There are about 5.3% Tyr residues in a polypeptide chain of 5263 residues for SF.…”

Section: Studies Of Interferencementioning

confidence: 99%

Square Wave Voltammetric Label‐free Determination of the Natural Protein Material Silk Fibroin

Song

2008

Chin. J. Chem.

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The electrochemical behavior of silk fibroin (SF) was investigated by cyclic voltammetry and square wave voltammetry in 0.01 mol/L HCl for the first time. Within the potential scan range of 0.0 to1.2 V (vs. SCE), two oxidative peaks at 0.91 V (P a,1 ) and 0.43 V (P a,2 ) as well as one reductive peak at 0.24 V (P c ) were observed on cyclic voltammogram at scan rate of 0.2 V/s. The peak current of the peak P a,1 was linear with SF concentration in the range of 5.8×10 -8 to 1.1×10 -6 mol/L, with the limit of detection 3.0×10 -8 mol/L (S/N＝3). The proposed method was of high selectivity without the interferences from the coexisting substances such as another natural protein material sericin and other small molecular substances. It was applied to the determination of SF in raw silk liquid samples without any pre-separation and pre-purification.

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“…Additionally, changes in the inner structure of textile fi bers enable easier penetration of enzymes, produced by diff erent types of living organisms into the structure [3,4]. Th is is the case especially with fungi, which are among the most severe deteriorating agents of textiles [5] and which attack mainly pre-degraded fi bers. Since fungi can cause changes in the supermolecular structure of textile fi bers [6][7][8][9][10][11], an analysis of infected materials is of crucial importance.…”

Section: Introductionmentioning

confidence: 99%

FT-Raman Analysis of Cellulose based Museum Textiles: Comparison of Objects Infected and Non-infected by Fungi

Kavkler¹,

Cimerman²,

Zalar³

et al. 2018

TEK

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It is well-known fact that the supermolecular structure of museum textiles changes during aging and biodeterioration. These structural changes can be observed by diff erent spectroscopic methods such as FT-IR, FT-Raman, and dispersive Raman spectroscopy. The purpose of the presented research is to present the usability of FT-Raman spectroscopy method for the analysis of the cellulose structure of the biodeteriorated historical textile fi bers. Although historical textiles have already been analyzed using FT-Raman spectroscopy the method has been rarely used to analyze the changes of supermolecular structure of the biodeteriorated historical textiles attacked by microorganisms. In the research, cellulose textile samples from diff erent museums and religious institutions were analyzed. Contemporary and historical cellulose textiles were scanned by FT-Raman spectra of reference and compared to determine the supermolecular cellulose fi ber structure of each material. It has been shown that structural changes such as depolymerization and crystallinity changes can be detected using FT-Raman spectroscopy. The supermolecular changes of the cellulose fi ber structure have been detected in biodeteriorated as well as in historical objects not infected by microorganisms. In the spectra of biodeteriorated objects, more intensive changes of spectral features were observed compared to spectra of non-infected samples. The changes were more pronounced at the museum objects made of fl ax. It can be concluded that biodeterioration causes more intensive structural changes than aging. On the basis of the research work, it has been shown that FT-Raman spectroscopy method can be used for the analysis of supermolecular structure changes of cellulose textiles.

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The microbial degradation of silk: a laboratory investigation

Cited by 101 publications

References 14 publications

Application of solid phase microextraction–gas chromatography–mass spectrometry method for the detection of active moulds on historical objects

Application of solid phase microextraction–gas chromatography–mass spectrometry method for the detection of active moulds on historical objects

Square Wave Voltammetric Label‐free Determination of the Natural Protein Material Silk Fibroin

FT-Raman Analysis of Cellulose based Museum Textiles: Comparison of Objects Infected and Non-infected by Fungi

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