000			01967nam a22002297a 4500
005			20230810113953.0
007			ta
008			210216s2023 pe ||||f |||| 00| 0 spa d
040			_apelicpp _bspa _cpelicpp
041			_aspa
043			_aSITC 01
100			_aSilva Paz, Reynaldo J. _95250
245			_aMathematical Modelling of Muña Leaf Drying (Minthostachys mollis) for Determination of the Diffusion Coefficient, Enthalpy, and Gibbs Free Energy
300			_a12 páginas
500			_aCita fuente PROMPERÚ. In Peru, there are more than four thousand plants with medicinal properties, including muña, which helps digestion and improves health. The way to preserve these plants is drying up. The objective of this research was to investigate the coefficient of diffusion, enthalpy, and Gibbs free energy in the drying kinetics of muña leaves. Different pretreatments were carried out on the samples (without pretreatment, as well as treated by immersion in 1% ascorbic acid and bleaching at 60 °C for 30 s), and they were dehydrated at three temperatures (40, 50, and 60 °C). The drying kinetics were modeled using eight mathematical models to represent the drying curve. The water content was reduced by the drying process. The logarithmic model was selected, as it showed the best fit to represent the drying kinetics of the muña. Activation energy values were similar between treatments (p > 0.05). The increase in temperature decreases the enthalpy and entropy and increases the Gibbs free energy with the effective diffusion coefficient. The drying kinetics allows one to determine the drying time for the storage of the product and the thermodynamic properties for the design of the equipment. Keywords: kinetics; drying; models; muff; thermodynamics
546			_aInglés
650		0	_aSector agronegocios _94304
651		0	_931 _aPerú
700			_aMateo Mendoza, Dante K. _95261
700			_aEccoña Sota, Amparo _95262
942			_2z _cCR
999			_c8795 _d8795