000			02226nab a2200301 i 4500
003			BR-BrBNA
005			20260407053309.0
008			260407b2019 bl.qr|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aQ02 _b3290
072			_aU10 _b2790
100			_aBastos, Alefe Viana Souza
100			_aAmaral, Alisson Macendo
100			_aGomes, Flávio Henrique Ferreira
100			_aXavier, Warlles
100			_aResende, Osvaldo
245			_aDrying Kinetics of Cecropia pachystachya Leaves
500			_aPublicação on-line; 49 ref.; 5 tables; 2 illus.; Summary (En)
520			_a ABSTRACT The species Cecropia pachystachya has important medicinal purposes and its leaves have been used in pharmaceutical research, so the drying of this product may help maintaining its chemical properties and ensure safe storage. Thus, the objective of this study was to select mathematical models to represent the drying kinetics of Cecropia pachystachya leaves, determine the effective diffusion coefficient and obtain the activation energy during drying at different temperatures. Leaves were dried in an oven under five temperature conditions (40, 50, 60 and 70 °C), until reaching hygroscopic equilibrium moisture content. Among the models analyzed, the Logarithmic model best represented the drying kinetics at temperatures of 40 and 60 °C, whereas Modified Henderson & Pabis and Dryceleaves represented temperatures of 50 and 70 °C, respectively. The effective diffusion coefficient increased with increasing air temperature, and the activation energy for liquid diffusion in the drying process was 64.53 kJ mol-1. Keywords: activation energy, embaúba, liquid diffusion, mathematical models, technology of forest products.
650			_aEMBAÚBA
650			_aSECAGEM
650			_aMODELO MATEMÁTICO
650			_aPLANTA MEDICINAL
773	0		_02929 _9347952 _dRio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 _o2025-0451 _tFloresta e Ambiente (Brazil) _x1415-0980 / ISSN 2179-8087 0nline _gv. 26(3) p. 1-9; (2019) _wBR2026000296
856			_uhttps://www.scielo.br/j/floram/a/VDHQH5BN3dpH6GxgJNwPczj/?format=pdf&lang=en
942			_cANA
999			_c341259 _d341259