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98270

EFFECT OF DIFFERENT DRYING METHODS ON MINT LEAVES PHYSICAL AND QUALITY PROPERTIES

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Last updated: 04 Jan 2025

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Abstract

Three  drying methods were used for drying mint leaves, oven drying (40, 50, 60 and 70 oC), microwave drying (180, 360, 540, 720 and 900 Watt) and direct solar drying with three levels of load (0.5, 1.25 and 5kg/m2).The drying characteristics and the quality aspects of the dried mint leaves were studied. From  initial moisture content (7.65 g.w/g.d.m.)  to achieve the equilibrium moisture content the drying time was 5 minutes by microwave drier at use powers 900 and 720 Watt with loading level 0.5 kg/m2, while the highest time took for drying mint was 20 hours to achieve equilibrium moisture content when use oven drier at 40 oC. Meanwhile, the solar drier required 8 hr. to achieve the final moisture content of mint leaves (0.11 g. w./g. d .m) at both 1.25 and 0.5 kg/m2 loading levels. The results showed that drying of the mint leaves at temperature 50 oC with loading rate 1.25 kg/m2  was the best treatment from all treatments were studied in this work to getting the highest amount of essential oil. Midili - kucuk, model adequately described the oven and solar drying behaviors and logarithmic model adequately described the microwave drying behaviors.

DOI

10.21608/mjae.2015.98270

Keywords

mint leaves, microwave, oven drying, solar drying

Authors

First Name

A. T.

Last Name

Taha

MiddleName

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Affiliation

Ag. Eng. Dept., Fac. of Ag., Menoufia Univ., Egypt.

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First Name

M. H.

Last Name

Keshek

MiddleName

-

Affiliation

Ag. Eng. Dept., Fac. of Ag., Menoufia Univ., Egypt.

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City

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Orcid

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First Name

M.

Last Name

Baggash

MiddleName

-

Affiliation

Ag. Eng. Dept., Fac. of Ag., Menoufia Univ., Egypt.

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Volume

32

Article Issue

3

Related Issue

14844

Issue Date

2015-07-01

Receive Date

2020-06-26

Publish Date

2015-07-01

Page Start

1,161

Page End

1,184

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 32_Issue 3_Pages 1161-1184.pdf

PDF . 922.6kB

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https://mjae.journals.ekb.eg/article_98270.html

Detail API

https://mjae.journals.ekb.eg/service?article_code=98270

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13

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Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

https://mjae.journals.ekb.eg/

MainTitle

EFFECT OF DIFFERENT DRYING METHODS ON MINT LEAVES PHYSICAL AND QUALITY PROPERTIES

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Article

Created At

23 Jan 2023