Drying of food products under inert atmosphere using heat pump

In conventional drying of food products, the drying medium is air and the drying potential is controlled with the variation temperature. Normally, the drying is carried out at high temperature and the presence of oxygen in the air affects nutrients of the food product. To improve the drying potentia...

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Main Author:	Hawlader, Mohammad Nurul Alam
Format:	Conference or Workshop Item
Language:	English
Published:	2012
Subjects:	S Agriculture (General) T175 Industrial research. Research and development
Online Access:	http://irep.iium.edu.my/26686/ http://irep.iium.edu.my/26686/2/Hawlader_Paper.docx-2.pdf

id	iium-26686
recordtype	eprints
spelling	iium-266862013-07-03T13:14:06Z http://irep.iium.edu.my/26686/ Drying of food products under inert atmosphere using heat pump Hawlader, Mohammad Nurul Alam S Agriculture (General) T175 Industrial research. Research and development In conventional drying of food products, the drying medium is air and the drying potential is controlled with the variation temperature. Normally, the drying is carried out at high temperature and the presence of oxygen in the air affects nutrients of the food product. To improve the drying potential and also to carry out the drying under low temperature conditions, a heat pump is used to improve the drying environment. Since the heat pump is operated in a closed loop, where condenser heat controls the drying temperature and evaporator removes the moisture content released at the drying chamber, the drying medium operates at low temperature and moisture content. As the system operates under closed loop condition, to eliminate the effect of oxygen in the air, the air is replaced by inert gases such as nitrogen and carbon dioxide. This paper includes results of drying of some heat sensitive fruit materials e.g. guava and papaya using nitrogen, carbon dioxide, and air to find the impact on nutrients and color. These results were also compared with those dried by freeze and vacuum dryers. 2012-06-18 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/26686/2/Hawlader_Paper.docx-2.pdf Hawlader, Mohammad Nurul Alam (2012) Drying of food products under inert atmosphere using heat pump. In: The 2nd International Symposium on Processing & Drying of Foods, Vegetables and Fruits (ISPDFVF 2012), 18-19 June 2012, Malaysia.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	S Agriculture (General) T175 Industrial research. Research and development
spellingShingle	S Agriculture (General) T175 Industrial research. Research and development Hawlader, Mohammad Nurul Alam Drying of food products under inert atmosphere using heat pump
description	In conventional drying of food products, the drying medium is air and the drying potential is controlled with the variation temperature. Normally, the drying is carried out at high temperature and the presence of oxygen in the air affects nutrients of the food product. To improve the drying potential and also to carry out the drying under low temperature conditions, a heat pump is used to improve the drying environment. Since the heat pump is operated in a closed loop, where condenser heat controls the drying temperature and evaporator removes the moisture content released at the drying chamber, the drying medium operates at low temperature and moisture content. As the system operates under closed loop condition, to eliminate the effect of oxygen in the air, the air is replaced by inert gases such as nitrogen and carbon dioxide. This paper includes results of drying of some heat sensitive fruit materials e.g. guava and papaya using nitrogen, carbon dioxide, and air to find the impact on nutrients and color. These results were also compared with those dried by freeze and vacuum dryers.
format	Conference or Workshop Item
author	Hawlader, Mohammad Nurul Alam
author_facet	Hawlader, Mohammad Nurul Alam
author_sort	Hawlader, Mohammad Nurul Alam
title	Drying of food products under inert atmosphere using heat pump
title_short	Drying of food products under inert atmosphere using heat pump
title_full	Drying of food products under inert atmosphere using heat pump
title_fullStr	Drying of food products under inert atmosphere using heat pump
title_full_unstemmed	Drying of food products under inert atmosphere using heat pump
title_sort	drying of food products under inert atmosphere using heat pump
publishDate	2012
url	http://irep.iium.edu.my/26686/ http://irep.iium.edu.my/26686/2/Hawlader_Paper.docx-2.pdf
first_indexed	2023-09-18T20:39:43Z
last_indexed	2023-09-18T20:39:43Z
_version_	1777409283811442688

Drying of food products under inert atmosphere using heat pump

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