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Thin-layer Drying Characteristics of Papaya (Carica papaya) Peel using Convection Oven and Microwave Drying
Pertanika J. Sci. & Technol. • 2020
Publication Information
Authors
Sama Manzoor
Yus Aniza Yusof
Chin Nyuk Ling
Intan Syafinaz Mohamed Amin Tawakkal
Mohammad Fikry
Chang Lee Sin
Keywords
Activation energy, convection oven drying, drying kinetic models, effective moisture diffusivity,
microwave drying, papaya peel
Journal
Pertanika J. Sci. & Technol.
Publisher
UPM
Volume
27
Issue
3
Pages
1207 - 1226
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
In this study, papaya (Carica papaya) peel was dried using convection oven and microwave
drying methods to investigate the drying kinetics and the drying behavior in the attempt
to search for a feasible way to utilize waste peel. Three different drying temperatures
(45, 55, and 65 oC) and microwave powers (250, 440, and 600 W) were applied to dry
the papaya peel, wherein the drying data were fitted into the following seven drying
kinetic models: Lewis, Page, Modified
Page, Henderson and Pabis, Logarithmic,
Two-Term, and Approximation of Diffusion
models. The study outcomes indicated that
the Page model emerged as the best fitted
model for oven drying of papaya peels with
the highest coefficient of determination
(R2) value (0.994-0.996) for all the three
temperatures. As for microwave drying,
the Approximation of Diffusion model
exhibited the best fit owing to the highest
R2 value (0.996-0.999) for all the three
powers. The effective moisture diffusivity
values for convection oven and microwave In this study, papaya (Carica papaya) peel was dried using convection oven and microwave
drying methods to investigate the drying kinetics and the drying behavior in the attempt
to search for a feasible way to utilize waste peel. Three different drying temperatures
(45, 55, and 65 oC) and microwave powers (250, 440, and 600 W) were applied to dry
the papaya peel, wherein the drying data were fitted into the following seven drying
kinetic models: Lewis, Page, Modified
Page, Henderson and Pabis, Logarithmic,
Two-Term, and Approximation of Diffusion
models. The study outcomes indicated that
the Page model emerged as the best fitted
model for oven drying of papaya peels with
the highest coefficient of determination
(R2) value (0.994-0.996) for all the three
temperatures. As for microwave drying,
the Approximation of Diffusion model
exhibited the best fit owing to the highest
R2 value (0.996-0.999) for all the three
powers. The effective moisture diffusivity
values for convection oven and microwave
drying methods to investigate the drying kinetics and the drying behavior in the attempt
to search for a feasible way to utilize waste peel. Three different drying temperatures
(45, 55, and 65 oC) and microwave powers (250, 440, and 600 W) were applied to dry
the papaya peel, wherein the drying data were fitted into the following seven drying
kinetic models: Lewis, Page, Modified
Page, Henderson and Pabis, Logarithmic,
Two-Term, and Approximation of Diffusion
models. The study outcomes indicated that
the Page model emerged as the best fitted
model for oven drying of papaya peels with
the highest coefficient of determination
(R2) value (0.994-0.996) for all the three
temperatures. As for microwave drying,
the Approximation of Diffusion model
exhibited the best fit owing to the highest
R2 value (0.996-0.999) for all the three
powers. The effective moisture diffusivity
values for convection oven and microwave In this study, papaya (Carica papaya) peel was dried using convection oven and microwave
drying methods to investigate the drying kinetics and the drying behavior in the attempt
to search for a feasible way to utilize waste peel. Three different drying temperatures
(45, 55, and 65 oC) and microwave powers (250, 440, and 600 W) were applied to dry
the papaya peel, wherein the drying data were fitted into the following seven drying
kinetic models: Lewis, Page, Modified
Page, Henderson and Pabis, Logarithmic,
Two-Term, and Approximation of Diffusion
models. The study outcomes indicated that
the Page model emerged as the best fitted
model for oven drying of papaya peels with
the highest coefficient of determination
(R2) value (0.994-0.996) for all the three
temperatures. As for microwave drying,
the Approximation of Diffusion model
exhibited the best fit owing to the highest
R2 value (0.996-0.999) for all the three
powers. The effective moisture diffusivity
values for convection oven and microwave