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97760

DRYING CHARACTERISTICS AND QUALITY CHANGES OF MORINGA LEAVES

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Last updated: 04 Jan 2025

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Abstract

The drying characteristics and quality changes of moringa oleifera leaves as a medicinal and aromatic plants were studied and investigated by using a laboratory dryer with initial moisture content of 86.7 % (wet base). Three different drying air temperatures (40, 50 and 60 ºC) with three different drying air velocities (0.45, 1.0 and 1.5 m/s) were functioned during this laboratory experiment. The quality of dried moringa leaves including protein, ascorbic acid (vitamin C), calcium and potassium were estimated. The experiment was carried out at Agricultural Engineering Department, Cairo University, Egypt in 2015.The obtained results demonstrated that the increase of drying temperature and air velocity resulted in lower moisture content and the drying rate was faster at the beginning than at the end for all treatments. At drying air temperature 60°C with air velocity 1.5 m/s showed the best data, at which in dried moringa, the moisture content decreased to 9.35% within drying time 5.5 hours, the average drying rate was 14.06 %/h, drying ratio was 4.42:1 and the average evaporating rate was 28.13 gmwater/h. Also, the quality tests of dried moringa leaves showed that, the best quality in terms of higher retention of protein and potassium at air temperature 60°C with air velocity 1.5 m/s, while at air temperature 40°C with air velocity 0.45 m/s showed the best quality in terms of higher retention of vitamin C and calcium.

DOI

10.21608/mjae.2016.97760

Keywords

Drying characteristics, Moringa leaves, Quality

Authors

First Name

A. E.

Last Name

Suliman

MiddleName

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Affiliation

Prof., Agric. Eng. Dept., Fac. Of Agric., Giza, Egypt.

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First Name

Y. B.

Last Name

Abdelhay

MiddleName

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Affiliation

Assistant Prof., Agric. Eng. Dept., Fac. Of Agric., Cairo Univ., Giza, Egypt.

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City

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Orcid

-

First Name

A. E.

Last Name

Saad

MiddleName

-

Affiliation

Graduate Student of Agric. Eng. Dept., Fac. Of Agric., Cairo Univ., Giza, Egypt.

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Volume

33

Article Issue

3

Related Issue

14762

Issue Date

2016-07-01

Receive Date

2020-06-24

Publish Date

2016-07-01

Page Start

947

Page End

960

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 33_Issue 3_Pages 947-960.pdf

PDF . 711.8kB

Link

https://mjae.journals.ekb.eg/article_97760.html

Detail API

https://mjae.journals.ekb.eg/service?article_code=97760

Order

11

Type

Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

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

MainTitle

DRYING CHARACTERISTICS AND QUALITY CHANGES OF MORINGA LEAVES

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Article

Created At

23 Jan 2023