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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kiang, W-S Bhat, R. Rosma, A. Cheng, L-H |
| Description | Country affiliation: Malaysia Author Affiliation: Kiang WS ( Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Minden, Penang, Malaysia.) |
| Abstract | UNLABELLED: In this study, the effects of thermosonication and thermal treatment on Escherichia coli O157:H7 and Salmonella Enteritidis in mango juice were investigated at 50 and 60°C. Besides, nonlethal injury of Salm. Enteritidis after both treatments was also examined. The highest inactivation was attained with thermosonication at 60°C. The inactivation rate was different for both pathogens, and Salm. Enteritidis was found to be more sensitive to thermosonication than E. coli O157:H7. Salmonella Enteritidis was recovered in all treated samples, except those subjected to more than 5-min thermosonication at 60°C. It was found that the introduction of high-intensity ultrasound enhanced the inactivation of pathogens compared to thermal treatment alone. On the other hand, Salm. Enteritidis was detected in a number of samples following incubation in universal pre-enrichment broth, but no growth was detected after incubation in mango juice. SIGNIFICANCE AND IMPACT OF THE STUDY: Fruit juices are commonly heat treated to inactivate micro-organisms and enzymes. However, excessive heat treatments may result in undesirable changes in juice quality. Treatment by power ultrasound, a nonthermal technology, may be an alternative processing technique to pasteurize fruit juices. This study highlights the effectiveness of thermosonication in inactivating Escherichia coli O157:H7 and Salmonella Enteritidis in mango juice. |
| File Format | HTM / HTML |
| ISSN | 02668254 |
| Issue Number | 4 |
| Volume Number | 56 |
| e-ISSN | 1472765X |
| Journal | Letters in Applied Microbiology |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2013-04-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Beverages Microbiology Escherichia Coli O157 Physiology Hot Temperature Mangifera Salmonella Enteritidis Sonication Colony Count, Microbial Fruit Humans Microbial Viability Sound Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Microbiology and Biotechnology |
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