Beta
ManageSearchChatDiscover
96059

DRYING OF THOMPSON SEEDLESS GRAPES IN THIN-LAYER USING A BIOGAS DRYER

Article

Last updated: 04 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Processing Engineering of Agricultural Products

Abstract

A biogas dryer was developed to study experimentally drying behavior of Thompson seedless grapes under Alexandria Governorate, Egypt conditions. Drying experiments are carried out in the month of August 2016. During the experimentation, temperatures of air at various places in the dryer, ambient relative humidity and humidity variation in drying chamber and mass of the dried grape are measured on hourly basis. four kg of Thompson seedless grapes are dried in forced convection heat transfer mode from initial moisture content of 79% (wb) to final moisture content 14% (wb) in 44 hours. The drying was carried out under uncontrolled condition. The average drying chamber temperature was around 51.98 °C. The biogas burner efficiency was 62.06 %. The effect of heating source on color change of the dried grapes was investigated. Color data were obtained using a high-resolution digital camera and lighting box and the images were analyzed quantitatively using Photoshop to get the L, a and b in the Histogram Window. Statistical analysis showed that there was a significant effect of heating source on color data of the dried grapes. Regardless of the heating source, all raisins had varying degrees of brown coloring.  The dried grapes by the biogas dryer had lower browning index (BI) of 43.52 indicating good quality. It could be concluded that the farmers can use biogas energy to enhance its utilization to produce good quality raisins.

DOI

10.21608/mjae.2018.96059

Keywords

Drying, biogas energy, Grapes, raisins

Authors

First Name

M.

Last Name

Zayed

MiddleName

-

Affiliation

Researcher, Agric. Eng. Res. Inst., Agric. Res. Centre, Dokki, Giza, Egypt.

Email

-

City

-

Orcid

-

First Name

S.

Last Name

Kassem

MiddleName

S.

Affiliation

Researcher, Agric. Eng. Res. Inst., Agric. Res. Centre, Dokki, Giza, Egypt.

Email

-

City

-

Orcid

-

First Name

H.

Last Name

Awad

MiddleName

A.

Affiliation

Lecature, Dept. of Agric. Eng., Fac. of Agric., Omar Al Mukhtar Univ., Al Bayda, Libya., M. Sc. Student, Dept. of Natural Resources & Agric. Eng., Fac. of Agric., Damanhour Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

I.

Last Name

Nassar

MiddleName

N.

Affiliation

Prof., Dept. of Natural Resources & Agric. Eng., Fac. of Agric., Damanhour Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

E.

Last Name

Aboukila

MiddleName

F.

Affiliation

Assist. Prof., Dept. of Natural Resources & Agric. Eng., Fac. of Agric., Damanhour Univ., Egypt.

Email

-

City

-

Orcid

-

Volume

35

Article Issue

1

Related Issue

14445

Issue Date

2018-01-01

Receive Date

2020-06-15

Publish Date

2018-01-01

Page Start

275

Page End

298

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 35_Issue 1_Pages 275-298.pdf

PDF . 867.4kB

Link

https://mjae.journals.ekb.eg/article_96059.html

Detail API

https://mjae.journals.ekb.eg/service?article_code=96059

Order

16

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 OF THOMPSON SEEDLESS GRAPES IN THIN-LAYER USING A BIOGAS DRYER

Details

Type

Article

Created At

23 Jan 2023