In:
PLOS ONE, Public Library of Science (PLoS), Vol. 18, No. 9 ( 2023-9-21), p. e0291769-
Abstract:
The stable isotope technique provides the possibility to trace ancient textiles because the technique is associated with advantages such as trace indication, fast detection, and accurate results. Since different cocooning conditions may impact cocoons even under identical habitats, it is important to investigate the effects of different cocooning temperatures and humidity on the isotope incorporation values in the cocoons. In this study, silk fibers were reeled under different conditions of temperature and humidity, followed by analysis of the secondary structure of cocoon proteins and isotope incorporation patterns. We found that the deviations in carbon isotope values of silk under different cocooning conditions could reach up to 0.76‰, while the deviation in carbon isotope values at different locations of a single silk was 2.75‰. Further, during the cocooning process, depletion of the 13 C-isotope at different locations of the silk fibers was observed, reducing the δ 13 C values. We proposed that the changes in carbon isotopes in silk were related to the content of sericin and silk fibroin in silk. Finally, we did not observe a significant difference in isotope ratios in degummed cocoons. In summary, the 13 C isotope was enriched in sericin, whereas 15 N was enriched in fibroin, and these findings provide basic information for tracing the provenance of silks.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0291769
DOI:
10.1371/journal.pone.0291769.g001
DOI:
10.1371/journal.pone.0291769.g002
DOI:
10.1371/journal.pone.0291769.g003
DOI:
10.1371/journal.pone.0291769.g004
DOI:
10.1371/journal.pone.0291769.g005
DOI:
10.1371/journal.pone.0291769.g006
DOI:
10.1371/journal.pone.0291769.g007
DOI:
10.1371/journal.pone.0291769.s001
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2023
detail.hit.zdb_id:
2267670-3
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