Modeling the solar drying kinetics of gamma irradiation-pretreated oystermushrooms (Pleurotus ostreatus)

Kortei N. K., . and Odamtten G. T., . and Ayim-Akonor M., . and Akonor P. T., . Modeling the solar drying kinetics of gamma irradiation-pretreated oystermushrooms (Pleurotus ostreatus). pp. 34-39. ISSN 2231-7546

Oyster mushroom slices (Pleurotus ostreatus) were exposed to -radiation as a pretreatment and solar dried to investigate the influence of irradiation on drying kinetics. Processing conditions included exposure of mushrooms to 0 kGy (control) 0.5 kGy 1.0 kGy 1.5 kGy and 2.0 kGy of -radiation at a dose rate of 1.7 kGy/h and drying at a mean temperature of 53.26.4C. Experimental drying data were fitted to 5 thin layer drying models by non-linear regression. Irradiation was observed to enhance the drying rate of mushroom slices with higher doses causing faster moisture removal. Drying characteristics of slices exposed to lower dosages were best described by Pages model (R20.9878 0.9967 0.9925 correspondingly for control� (0.0 kGy) 0.5 and 1.0 kGy while the Diffusion model best fit the data for those exposed to higher doses of radiation (R20.9938 0.9890 for 1.5 and 2.0 kGy respectively). Deff ranged from 1.88 to 2.44 x 10-08 and increase from control� 0.5 kGy 1.0 kGy 1.5 kGy to 2.0 kGy. Irradiation of mushrooms as a pretreatment for drying increases moisture diffusivity and drying rate with higher doses having the most effect.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/23%20(01)%202016/(6).pd...

Abstract

Oyster mushroom slices (Pleurotus ostreatus) were exposed to -radiation as a pretreatment and solar dried to investigate the influence of irradiation on drying kinetics. Processing conditions included exposure of mushrooms to 0 kGy (control) 0.5 kGy 1.0 kGy 1.5 kGy and 2.0 kGy of -radiation at a dose rate of 1.7 kGy/h and drying at a mean temperature of 53.26.4C. Experimental drying data were fitted to 5 thin layer drying models by non-linear regression. Irradiation was observed to enhance the drying rate of mushroom slices with higher doses causing faster moisture removal. Drying characteristics of slices exposed to lower dosages were best described by Pages model (R20.9878 0.9967 0.9925 correspondingly for control� (0.0 kGy) 0.5 and 1.0 kGy while the Diffusion model best fit the data for those exposed to higher doses of radiation (R20.9938 0.9890 for 1.5 and 2.0 kGy respectively). Deff ranged from 1.88 to 2.44 x 10-08 and increase from control� 0.5 kGy 1.0 kGy 1.5 kGy to 2.0 kGy. Irradiation of mushrooms as a pretreatment for drying increases moisture diffusivity and drying rate with higher doses having the most effect.

[error in script]

Item Type:	Article
AGROVOC Term:	Pleurotus ostreatus
AGROVOC Term:	Solar drying
AGROVOC Term:	Gamma irradiation
AGROVOC Term:	Moisture content
AGROVOC Term:	Irradiation
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/22418

Actions (login required)

View Item