Abstract

MARTINEZ-PEREZ, Ricardo et al. Calorific value and inorganic material in the bark of six fruit trees. Rev. Chapingo ser. cienc. for. ambient [online]. 2012, vol.18, n.3, pp.375-384. ISSN 2007-4018.  https://doi.org/10.5154/r.rchscfa.2011.05.039.

Calorific value and mineral matter (ash) content were determined in the bark of six fruit tree species (Annona cherimola Mill., Citrus aurantifolia Swingle, Malus domestica Borkh., Psidium guajava L., Prunus dulcis [Mill.] D. A. Webb and Tamarindus indica L.). Ashes obtained were analyzed by X-ray.The calorific values found ranged from 3,453.49 kcal·kg^-1 in T. indica to 4,076.10 kcal·kg¹ in P. guajava. In the case of the ashes, the results ranged from 5.76 % in Psidium guajava to 21.93 % in Tamarindus indica. It was observed that a higher content of minerals in the bark tends to decrease its calorific value. The common chemical elements in the samples analyzed were calcium, potassium, magnesium, phosphorus and sulfur. No heavy metals were detected in the samples of the bark.

Keywords : Broad-leaved; combustion; ash content; chemicals; X-ray analysis.

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