Title |
Short communication: Cheese supplemented with Thymus algeriensis oil, a potential natural food preservative
|
---|---|
Published in |
Journal of Dairy Science, February 2018
|
DOI | 10.3168/jds.2017-13714 |
Pubmed ID | |
Authors |
Danka Bukvicki, Abdulhmid Giweli, Dejan Stojkovic, Ljubodrag Vujisic, Vele Tesevic, Milos Nikolic, Marina Sokovic, Petar D Marin |
Abstract |
The essential oil of Thymus algeriensis was analyzed as a potential preservative in soft cheese. We developed a novel method to test the preserving properties of essential oil in soft cheese. Contamination incidence of Penicillium aurantiogriseum was absent after 30 d of storage at 4°C with 25 µL of essential oil added. The antimicrobial activity was tested against 8 bacteria and 8 fungi. Thymus algeriensis oil showed inhibitory activity against tested bacteria at 0.03 to 0.09 mg/mL, and bactericidal activity was achieved at 0.05 to 0.15 mg/mL. For antifungal activity, minimum inhibitory concentrations ranged between 0.01 and 0.04 mg/mL and minimum fungicidal concentrations between 0.01 and 0.04 mg/mL. Furthermore, the oil was also screened for antiradical activity using the 1,1-diphenyl-2-picrylhydrazyl assay. The results showed that the oil was active and achieved half-maximal inhibitory activity at 0.132 mg/mL. We used gas chromatography, gas chromatography-mass spectrometry, and nuclear magnetic resonance spectrometry to investigate the volatile compounds from the oil. Carvacrol was identified as the main compound in the oil, represented by 80.9% of the total constituents, followed by p-cymene (7.7%). |
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Geographical breakdown
Country | Count | As % |
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United States | 1 | 50% |
Unknown | 1 | 50% |
Demographic breakdown
Type | Count | As % |
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Scientists | 1 | 50% |
Members of the public | 1 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 69 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Bachelor | 11 | 16% |
Student > Master | 10 | 14% |
Researcher | 5 | 7% |
Professor | 4 | 6% |
Student > Ph. D. Student | 4 | 6% |
Other | 11 | 16% |
Unknown | 24 | 35% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 12 | 17% |
Pharmacology, Toxicology and Pharmaceutical Science | 4 | 6% |
Veterinary Science and Veterinary Medicine | 3 | 4% |
Biochemistry, Genetics and Molecular Biology | 3 | 4% |
Chemistry | 3 | 4% |
Other | 10 | 14% |
Unknown | 34 | 49% |