Medina OJ, Patarroyo W, Moreno LM. Current trends in cacti drying processes and their effects on cellulose and mucilage from two Colombian cactus species.
Heliyon 2022;
8:e12618. [PMID:
36619411 PMCID:
PMC9816971 DOI:
10.1016/j.heliyon.2022.e12618]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/02/2022] [Accepted: 12/16/2022] [Indexed: 12/25/2022] Open
Abstract
The effect of temperature and drying technologies on mucilage and cellulose (obtained by the microwave-assisted extraction technique, MAE) from Opuntia ficus-indica (OFI) and Austrocylindropuntia cylindrica (CC) was determined using a conventional oven (CO) and Refractive Window (RW). Mathematical modeling was performed from drying kinetics data using the Lewis, Henderson-Pabis, Page, and Logarithmic models. Activation Energy (Ea) and Diffusivity (D) were also determined. The model with the best fit was the logarithmic one, with a correlation coefficient (R2) greater than 0.99. The obtained activation energies were 22.81 kJ mol-1 for Refractance window (RW) and 31.44 kJ mol-1 using conventional hot air drying (CO) while a diffusivity of 2.9 ∗10-8 m2 s-1 for RW and 1.3∗10-8 m2 s-1 for CO were found as well. According to our results, a greater drying efficiency and a less chemical deterioration of the plant sample are obtained by drying with Refractance window.
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