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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(3): 2278-2296
DOI: https://doi.org/10.20546/ijcmas.2018.703.268


Microbiological Quality and Safety of Unfinished UHT Milk at Storage Time-Temperature Abuse
A. Siti Norashikin, M.A.R. Nor-Khaizura* and W.I. Wan Zunairah 
1Department of Food Science, Faculty of Food Science and Technology,Universiti Putra Malaysia, 43400 Serdang Selangor, Malaysia
*Corresponding author
Abstract:

The objective of this study is to determine the effect of storage time-temperature abuse on the microbiological quality and safety of unfinished UHT milk. Therefore, the present study attempts to imitate the condition of unfinished UHT milk during consumption. The UHT milk was opened and drank and then the UHT milk was kept at three different storage temperature of 15 ± 1°C, 25 ± 1°C, 35 ± 1°C for 2, 4, and 6 hours. The microbiological analysis had been conducted which includes the account of the number of bacteria regarding Total Plate Count (TPC), Yeast and moulds count, Mesophilic sporeformers count, Bacillus Cereus, Staphylococcus aureus, Total and Fecal Coliform, Listeria monocytogenes. At the 35°C storage temperature for 6 hours storage time for unfinished UHT milk, results showed mean of TPC 7.91 log10 CFU/mL, Yeast and Moulds counts 6.84 log10 CFU/mL, Mesophilic sporeformers counts 7.55 log10 CFU/mL, Bacillus cereus counts 7.73 log10 CFU/mL, Staphylococcus aureus counts 8.30 log10 CFU/mL and Listeria monocytogenes counts 100 CFU/mL. This indicates that unfinished UHT milk is not safe to consume at this condition since value of all bacteria counts exceeded the maximum limit (100 CFU/mL for L. monocytogenes and 5.00 log10 CFU/mL for others) permitted by Food Act 1983 (Act 281) and Food Regulations 1985 and Netherlands National Food and Commodities Law. Interestingly, there is no detection of total and fecal coliform in the sample.


Keywords: UHT milk, Unfinished, Storage temperature, Storage timeUHT milk, Unfinished, Storage temperature, Storage time
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How to cite this article:

Siti Norashikin, A., M.A.R. Nor-Khaizura and Wan Zunairah, W.I.2018. Microbiological Quality and Safety of Unfinished UHT Milk at Storage Time-Temperature Abuse.Int.J.Curr.Microbiol.App.Sci. 7(3): 2278-2296. doi: https://doi.org/10.20546/ijcmas.2018.703.268