alexa Temperature Dependence of Bulk Viscosity in Edible Oils
ISSN: 2157-7110

Journal of Food Processing & Technology
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article

Temperature Dependence of Bulk Viscosity in Edible Oils using Acoustic Spectroscopy

Sunandita Ghosh*, Melvin Holmes and Malcolm Povey

epartment of Food Science and Nutrition, University of Leeds, Leeds, UK

*Corresponding Author:
Sunandita Ghosh
Department of Food Science
and Nutrition, University of Leeds
Leeds, UK
Tel: +44-0113-3437594
E-mail: [email protected]

Received Date: May 09, 2017 Accepted Date: May 26, 2017 Published Date: June 02, 2017

Citation: Ghosh S, Holmes M, Povey M (2017) Temperature Dependence of Bulk Viscosity in Edible Oils using Acoustic Spectroscopy. J Food Process Technol 8: 676. doi: 10.4172/2157-7110.1000676

Copyright: © 2017 Ghosh S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

When ultrasound waves are applied to a compressible Newtonian fluid, bulk viscosity plays an important parameter to cause attenuation. Ultrasound spectroscopy is an important technique to characterise and determine the physico-chemical properties of many food components because it is a non-invasive, non-destructive, easy and accurate technique. The aim of this study was to find the bulk viscosity of three brands of sunflower and extra-virgin olive oil by using the Navier’s-Stoke equation across a temperature range of 5°C to 40°C and to test the hypothesis that there is a significant difference in the value of bulk viscosity between the different brands of sunflower and olive oil used. The value of bulk viscosity was not found to be constant over the operating frequency range of 12-100 MHz, which suggested edible oils are non-Newtonian fluids. Also, no significant statistical difference of bulk viscosity values was found between different brands of the same oil (p ≥ 0.05). This shows bulk viscosity is not affected by small compositional variations. Acoustic spectroscopy is increasingly being used to characterise food materials. More studies on bulk viscosity must be employed in order to be able to utilise this technology to its full strength.

Keywords

Share This Page

Additional Info

Loading
Loading Please wait..
 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords