Effect of Drypetes gossweileri essential oil and irradiation treatments on inhibition and sensitivity of bacterial spores
This work assesses the effect of Drypetes gossweileri essential oil on germination of Bacillus spores inoculated in orange juice and milk. We also report the capacity of the essential oil at 0.25, 0.5 and 1 µg/mL to induce sensitivity of spores to some irradiation treatments. The concentrations of e...
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| Published in: | Food science and technology international Vol. 26; no. 1; pp. 65 - 77 |
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| Main Authors: | , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
London, England
SAGE Publications
01-01-2020
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | This work assesses the effect of Drypetes gossweileri essential oil on germination of Bacillus spores inoculated in orange juice and milk. We also report the capacity of the essential oil at 0.25, 0.5 and 1 µg/mL to induce sensitivity of spores to some irradiation treatments. The concentrations of essential oil were chosen after sensory analysis. The results show that the essential oil inhibited spores germination with minimal inhibitory concentrations inhibiting spore germination (MICg) of 10 µg/mL in the orange juice. In milk, the spores appeared to be less sensitive with MICg varying from 20 to 40 µg/mL. The sensory analysis revealed 2.5 µg/mL as the acceptable concentration of essential oil in orange juice. The essential oil at 1 µg/mL induced the sensitivity of spore of three Bacillus to alpha radiation of 101.4 Gy. Ultraviolet-C and microwave treatments in the presence of essential oil in general led to higher inactivation of spores up to 100% in some cases. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 1082-0132 1532-1738 |
| DOI: | 10.1177/1082013219865659 |