Dao Dougabka, Tikri Bianzeube, Togbé Armel Amadji, Jean Gérard, Wel-Doret Djonglibet, Ilham Bentaleb
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Comparative study of the stable carbon isotope ratio of cellulose, lignin and whole wood powder of Balanites aegyptiaca
Abstract This study involved analysing the carbon-13 isotope ratio (δ 13 C) 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 δ 13 C 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 ( r 2 = 0.93) between the δ 13 C cellulose values and those of whole wood powder from B . aegyptiaca , as well as between the δ 13 C cellulose values and those of lignin ( r 2 = 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 δ 13 C analysis of B . aegyptiaca wood.
期刊介绍:
Holzforschung is an international scholarly journal that publishes cutting-edge research on the biology, chemistry, physics and technology of wood and wood components. High quality papers about biotechnology and tree genetics are also welcome. Rated year after year as one of the top scientific journals in the category of Pulp and Paper (ISI Journal Citation Index), Holzforschung represents innovative, high quality basic and applied research. The German title reflects the journal''s origins in a long scientific tradition, but all articles are published in English to stimulate and promote cooperation between experts all over the world. Ahead-of-print publishing ensures fastest possible knowledge transfer.