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156111

USING DEHYDRATED AIR IN DRYING FARM CROPS

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Last updated: 04 Jan 2025

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Abstract

The aim of this study is to investigate a new drying method that depends on absorbing the moisture from the air using some chemical materials named desiccants. The experiments were done in two stages; the initial experiments were with no load (without plants in the drying chamber) on purpose of choosing the best treatment that provides high dehydrated air. Three forced air velocities were used (2.0, 4.50 and 7.0 m/s) in combination with three desiccant materials and four configurations of them. The used desiccants were sulfuric acid conc., calcium chloride anhydrous and silica gel. The best treatment for dehydrating the air was when air passes in succession through 4 flasks of 500 ml H2SO4, 500 g CaCl2, 500 ml H2SO4 and 500 g SiO2 with the lowest velocity (2.0 m/s). The declination of moisture was from 56.77% to 18.2%. In the second stage oven dryer was used at 70 °C and Desiccant Drying System (DDS) with the best treatment in drying garlic with slices thickness 3 mm. Three levels of loading were also used 1.15 Kg/m², 2.3 Kg/m² and 4‏.6 Kg/m². The quality attributes of the fresh and dehydrated garlic slices were evaluated for color and oil content. The results revealed that using the DDS method provides a good quality dehydrated garlic slices with higher oil content and lower color change.

DOI

10.21608/maje.2019.156111

Keywords

Desiccant drying system, Dehydrated air, oven drying, Garlic

Authors

First Name

M.A.

Last Name

Mohamed

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Affiliation

Prof. of Agricultural Engineering, Fac. of Agric., Menoufia Univ.

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First Name

A. T. H.

Last Name

Taha

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Affiliation

Associate Prof. of Agricultural Engineering, Fac. of Agric., Menoufia Univ.

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Volume

2

Article Issue

1

Related Issue

22967

Issue Date

2019-12-01

Receive Date

2021-03-13

Publish Date

2019-12-01

Page Start

7

Page End

8

Print ISSN

2357-0784

Online ISSN

2735-3516

Article File

MAJE_Volume 2_Issue 1_Pages 7-8.pdf

PDF . 310.7kB

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https://maje.journals.ekb.eg/article_156111.html

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https://maje.journals.ekb.eg/service?article_code=156111

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4

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original papers

Type Code

1,462

Publication Type

Journal

Publication Title

Menoufia Journal of Agricultural Engineering

Publication Link

https://maje.journals.ekb.eg/

MainTitle

USING DEHYDRATED AIR IN DRYING FARM CROPS

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Article

Created At

23 Jan 2023