Biometry and verification of papermaking potential of secondary xylem fibers of two Theobroma species

Alisson Rodrigo Souza Reis () and Cassiele Fonseca Cruz ()
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Alisson Rodrigo Souza Reis: University of Pará, University Campus of Altamira
Cassiele Fonseca Cruz: University of Pará, University Campus of Altamira

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2021, vol. 23, issue 7, No 69, 11090-11097

Abstract: Abstract Theobroma glandiflorum and T. cacao, known as cupuaçu and cacao, respectively, are species widely used for food purposes. However, when plantations are renewed, these plants are discarded, making studies on the reuse of this material necessary. Thus, the objective of this study was to perform biometry of cellular elements and to investigate the papermaking potential of the fibers of these two species. We used the cellular element maceration technique to measure fiber and vessel element dimensions and calculated the fiber slenderness ratio, wall fraction, coefficient of flexibility and the Runkel index. According to the classification literature, the fibers of these species were of medium size, and there was a significant difference in wall thickness, with cupuaçu fibers being thicker. The values of the fiber slenderness ratio and the coefficient of flexibility were higher in cocoa, while those of wall fraction and the Runkel index were higher in cupuaçu. To conclude, the fibers of both species have papermaking potential. However, the paper manufactured with these fibers should be tested to confirm the results of this study.

Keywords: Cacao; Cupuaçu; Waste reuse; Runkel index (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10668-020-01068-3

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