Dougabka Dao, Bianzeube Tikri, Amadji Togbé Armel, Gérard Jean, Djonglibet Wel-Doret, Bentaleb Ilham. 2023. Comparative study of the stable carbon isotope ratio of cellulose, lignin and whole wood powder of Balanites aegyptiaca. Holzforschung, 77 (11-12) : 855-859.
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Résumé : This study involved analysing the carbon-13 isotope ratio (δ13C) of cellulose, lignin, and whole wood powder of Balanites aegyptiaca to determine the optimal substrate for future ecophysiological studies. From seven different trees (i.e., three from the Sudanian zone and four from the Chadian Sahelian zone), 21 samples were taken for this study. Identical variation trends were observed with cellulose, lignin, and whole wood powder, with δ13C values for cellulose always higher than for the other substrates, although the trees were located under different climatic conditions. The means obtained were −26.0 ‰, −28.7 ‰, and −27.1 ‰, for cellulose, lignin, and whole wood powder, respectively. Spearman's correlation test, which was used to analyse relationships between the results, revealed a strong correlation (r2 = 0.93) between the δ13C cellulose values and those of whole wood powder from B. aegyptiaca, as well as between the δ13C cellulose values and those of lignin (r2 = 0.73). This strong correlation between cellulose and wood powder results, and between cellulose and lignin, suggests that the isolation of cellulose is not necessary for δ13C analysis of B. aegyptiaca wood.
Mots-clés Agrovoc : Balanites aegyptiaca, bois, carbonisation du bois, lignine, propriété physicochimique, cellulose, carbone, isotopes du carbone, poudre
Mots-clés géographiques Agrovoc : France
Mots-clés libres : Balanites aegyptiaca wood, Cellulose, Lignin, Stable carbon isotope, Whole wood powder
Classification Agris : K50 - Technologie des produits forestiers
Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques
Auteurs et affiliations
- Dougabka Dao, National School of Civil Engineering (TCD) - auteur correspondant
- Bianzeube Tikri, Université de N'Djamena (TCD)
- Amadji Togbé Armel, UAC (BEN)
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Gérard Jean, CIRAD-PERSYST-UPR BioWooEB (FRA)
ORCID: 0000-0002-5005-8636
- Djonglibet Wel-Doret, Université de N'Djamena (TCD)
- Bentaleb Ilham, UM2 (FRA)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/606902/)
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