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Effect of γ-irradiation on the physicochemical properties, and microbial and sensory qualities of cold-stored onion puree.


Citation

Sadoughi, Navideh and Karim, Roselina and Mat Hashim, Dzulkifly and Zainuri, Ahmad and Mohd Ghazali, Hasanah (2013) Effect of γ-irradiation on the physicochemical properties, and microbial and sensory qualities of cold-stored onion puree. Journal of Food Processing and Preservation, 37 (5). pp. 889-898. ISSN 0145-8892; ESSN: 1745-4549

Abstract

The present study was conducted to evaluate the effect of different doses (0, 1, 2, 3, 5 and 7 kGy) of γ-irradiation on the physicochemical properties (pH, titratable acidity, total soluble solid, color, organic acid content), and also the microbial and sensory qualities of onion puree during cold storage at 4C for 28 days. The different doses of γ-irradiation were found to not have any negative effect on titratable acidity, pH, total soluble solid and organic acid contents of onion puree immediately after irradiation and also during cold storage. Irradiation at 3 kGy and above was able to control the development of yeasts and molds in the onion puree, but had negative effects on the color and sensory quality of the onion puree. This study indicates that irradiation at 2 kGy reduced microbial counts with minimum adverse effects on color and sensory qualities.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
DOI Number: https://doi.org/10.1111/j.1745-4549.2012.00739.x
Publisher: Wiley
Keywords: Onion puree; G-irradiation; Physicochemical properties; Storage.
Depositing User: Khairil Ridzuan Khahirullah
Date Deposited: 14 Jul 2014 01:45
Last Modified: 03 Feb 2016 03:34
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1111/j.1745-4549.2012.00739.x
URI: http://psasir.upm.edu.my/id/eprint/30424
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