Lignin Quantification of Papyri by TGA—Not a Good Idea
Papyri belong to the oldest writing grounds in history. Their conservation is of the highest importance in preserving our cultural heritage, which is best achieved based on an extensive knowledge of the materials’ constituents to choose a tailored conservation approach. Thermogravimetric Analysis (T...
Main Authors: | , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-07-01
|
Series: | Molecules |
Subjects: | |
Online Access: | https://www.mdpi.com/1420-3049/26/14/4384 |
id |
doaj-df163694fbd042c694261f83d42e23a9 |
---|---|
record_format |
Article |
spelling |
doaj-df163694fbd042c694261f83d42e23a92021-07-23T13:56:59ZengMDPI AGMolecules1420-30492021-07-01264384438410.3390/molecules26144384Lignin Quantification of Papyri by TGA—Not a Good IdeaFlorian Bausch0Dickson D. Owusu1Paul Jusner2Mario J. Rosado3Jorge Rencoret4Sabine Rosner5José C. del Río6Thomas Rosenau7Antje Potthast8Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, A-3430 Tulln, AustriaDepartment of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, A-3430 Tulln, AustriaDepartment of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, A-3430 Tulln, AustriaInstituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, SpainInstituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, SpainDepartment of Integrative Biology and Biodiversity Research, Institute of Botany, University of Natural Resources and Life Sciences Vienna (BOKU), Gregor-Mendel Straße 33, A-1180 Vienna, AustriaInstituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, SpainDepartment of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, A-3430 Tulln, AustriaDepartment of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Konrad-Lorenz-Straße 24, A-3430 Tulln, AustriaPapyri belong to the oldest writing grounds in history. Their conservation is of the highest importance in preserving our cultural heritage, which is best achieved based on an extensive knowledge of the materials’ constituents to choose a tailored conservation approach. Thermogravimetric Analysis (TGA) has been widely employed to quantify cellulose and lignin in papyrus sheets, yielding reported lignin contents of 25% to 40%. In this work, the TGA method conventionally used for papyrus samples was repeated and compared to other lignin determination approaches (Klason-lignin and acetyl bromide-soluble lignin). TGA can lead to a large overestimation of the lignin content of commercial papyrus sheets (~27%) compared to the other methods (~5%). A similar overestimation of the lignin content was found for the pith and rind of the native papyrus plant. We concluded that the TGA method should, therefore, not be used for lignin quantification.https://www.mdpi.com/1420-3049/26/14/4384papyrusligninquantificationTGADTGKlason-lignin |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Florian Bausch Dickson D. Owusu Paul Jusner Mario J. Rosado Jorge Rencoret Sabine Rosner José C. del Río Thomas Rosenau Antje Potthast |
spellingShingle |
Florian Bausch Dickson D. Owusu Paul Jusner Mario J. Rosado Jorge Rencoret Sabine Rosner José C. del Río Thomas Rosenau Antje Potthast Lignin Quantification of Papyri by TGA—Not a Good Idea Molecules papyrus lignin quantification TGA DTG Klason-lignin |
author_facet |
Florian Bausch Dickson D. Owusu Paul Jusner Mario J. Rosado Jorge Rencoret Sabine Rosner José C. del Río Thomas Rosenau Antje Potthast |
author_sort |
Florian Bausch |
title |
Lignin Quantification of Papyri by TGA—Not a Good Idea |
title_short |
Lignin Quantification of Papyri by TGA—Not a Good Idea |
title_full |
Lignin Quantification of Papyri by TGA—Not a Good Idea |
title_fullStr |
Lignin Quantification of Papyri by TGA—Not a Good Idea |
title_full_unstemmed |
Lignin Quantification of Papyri by TGA—Not a Good Idea |
title_sort |
lignin quantification of papyri by tga—not a good idea |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2021-07-01 |
description |
Papyri belong to the oldest writing grounds in history. Their conservation is of the highest importance in preserving our cultural heritage, which is best achieved based on an extensive knowledge of the materials’ constituents to choose a tailored conservation approach. Thermogravimetric Analysis (TGA) has been widely employed to quantify cellulose and lignin in papyrus sheets, yielding reported lignin contents of 25% to 40%. In this work, the TGA method conventionally used for papyrus samples was repeated and compared to other lignin determination approaches (Klason-lignin and acetyl bromide-soluble lignin). TGA can lead to a large overestimation of the lignin content of commercial papyrus sheets (~27%) compared to the other methods (~5%). A similar overestimation of the lignin content was found for the pith and rind of the native papyrus plant. We concluded that the TGA method should, therefore, not be used for lignin quantification. |
topic |
papyrus lignin quantification TGA DTG Klason-lignin |
url |
https://www.mdpi.com/1420-3049/26/14/4384 |
work_keys_str_mv |
AT florianbausch ligninquantificationofpapyribytganotagoodidea AT dicksondowusu ligninquantificationofpapyribytganotagoodidea AT pauljusner ligninquantificationofpapyribytganotagoodidea AT mariojrosado ligninquantificationofpapyribytganotagoodidea AT jorgerencoret ligninquantificationofpapyribytganotagoodidea AT sabinerosner ligninquantificationofpapyribytganotagoodidea AT josecdelrio ligninquantificationofpapyribytganotagoodidea AT thomasrosenau ligninquantificationofpapyribytganotagoodidea AT antjepotthast ligninquantificationofpapyribytganotagoodidea |
_version_ |
1721286829955612672 |