The Evaporation of Water and Oil Absorption During The Vacuum Frying Of Fruit Chips

Jamaluddin, Jamaluddin and Rahardjo, Budi and Hastuti, Pudji and Dirawan, Gufran Darma (2016) The Evaporation of Water and Oil Absorption During The Vacuum Frying Of Fruit Chips. Global Journal of Engineering Education, 18 (2). pp. 111-118. ISSN 1328-3154

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Abstract

ABSTRACT: Fruit chips are now popular and enjoyed by consumers world-wide due to their unique properties: they are tasty, savoury and crunchy. During the frying process, heat and mass transfer occur simultaneously. Heat transfer occurs from the hot oil to the surface and propagates into the solids, so that the water content in the solids comes to the surface of the solids as vapour, while at the same time, the solids absorb the oil. The aim of this research was to develop a mathematical model of heat and mass transfer when frying fruit pieces in a vacuum. The samples were jackfruit fried at a temperature of 70-100OC, in an old frying pan for 15-60 minutes and with a vacuum pressure of 80-90 kPa. Changes in water content, oil content, starch and sucrose concentration, when reducing sugar levels and β-carotene levels in solids were taken into account during the model’s development. The model is based on the concept of lump capacitance. The shape is reflected in first order ordinary differential equations that are solved with the aid of the Runge-Kutta numerical method. Simulation results, including the rise in temperature, moisture reduction and absorption of oil during the frying process in a vacuum, illustrate that mathematical models can be developed quite well, when used to explain the phenomenon of heat and mass transfer during the frying process of fruit in a vacuum. This experimental procedure may be particularly useful for postgraduate education.

Item Type:	Article
Uncontrolled Keywords:	Evaporation of water, oil absorption, vacuum frying
Subjects:	FAKULTAS TEKNIK FAKULTAS TEKNIK > Pendidikan Teknologi Pertanian KARYA ILMIAH DOSEN Universitas Negeri Makassar > KARYA ILMIAH DOSEN
Divisions:	KOLEKSI KARYA ILMIAH UPT PERPUSTAKAAN UNM MENURUT FAKULTAS > KARYA ILMIAH DOSEN KARYA ILMIAH DOSEN
Depositing User:	S.T., M.T. Faruq Ratuhaji
Date Deposited:	22 May 2020 14:58
Last Modified:	28 May 2020 01:13
URI:	http://eprints.unm.ac.id/id/eprint/17614

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