https://orcid.org/0000-0002-3976-1849
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ABSTRACT
Black (Piper nigrum L.) and cubeb pepper (Piper cubeba L.) fruits from the Serbian market were chosen as unprocessed materials for obtaining market-valuable essential oils. Since pepper fruits are only imported in Serbia, inadequate transportation and storage conditions may lead to their spoilage, negatively affecting their quality as feedstocks. To ensure the highest quality of essential oils, fruits were refrigerated upon purchase, mechanically disintegrated at colder conditions and subjected to hydrodistillation. Black (BPEO) and cubeb pepper essential oil (CPEO) contained 34 and 42 compounds, respectively. CPEO showed better inhibitory effect on B. cereus (ATCC strain) and C. albicans (isolate and ATCC strain). Both oils were not bactericidal against B. cereus (isolate and ATCC strains) and S. enterica (isolate). The best antioxidant properties were shown after 1 h of incubation. These results are valuable for further progress, development and production regarding the aromatic plant industry, pharmaceutical and food industry.
Abbreviations
| BHT | = | butylated hydroxytoluene |
| BPEO | = | black pepper essential oil |
| CPEO | = | cubeb pepper essential oil |
| DMSO | = | dimethylsulfoxide |
| DPPH | = | 1,1-diphenyl-2-picrylhydrazil |
| MIC | = | minimum inhibitory concentration |
| MMC | = | minimum microbicidal (bactericidal/fungicidal) concentration |
| TTC | = | triphenyltetrazolium chloride |
Acknowledgments
This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia under the Program of financing scientific research work, number 451-03-68/2022-14/200133 (Project assigned to the Faculty of Technology in Leskovac, University of Niš, researchers’ groups III 44006, III 45001 and TR-451-03-47/2023-01/200133).
Disclosure statement
No potential conflict of interest was reported by the authors.
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All the authors approved the consent for publishing the manuscript and, if accepted for publication, it will not be published elsewhere in the same form or in any other language.