Arbab, Monire (2017) Effect of Trigonella Foenum-graecum Linn Seed Extract on the growth of Staphylococcus aureus contimi noted in Cyprinus carpio fillet. Masters thesis, university of zabol.
|
Text
Effect of Trigonella Foenum-graecum Linn Seed.pdf Download (303kB) | Preview |
Abstract
The increased demand for fishery product without chemical additive motivates many researchers to investigate the antioxidant and antimicrobial effects of medicinal herbs such as Fenugreek (Trigonella foenum-graecum). The aim of this study was investigated the effect of Trigonella foenum-graecum seed aqueous and ethanolic extracts on Staphylococcus aureus (103 CFU/g) inoculated in Cyprinus carpio fillets. The seed extraction was done using water and ethanol as solvents. Fresh fillets were injected with different concentrations of extracts at concentrations of 1, 2.5 and 4%. Microbial (enumeration of Staphylococcus aureus, TVC and PTC) and chemical (pH, TVB-N and TBA) parameters were determined during storage at 4 °C for 12 days. The addition of aqueous and ethanolic extracts (2.5%) into fillets had positive effects on sensory properties (color, flavor, texture, smell and general acceptability). All concentrations had antibacterial activity against Staphylococcus aureus inoculated in Cyprinus carpio fillets during storage. Bacterial growth was completely inhibited by 4% ethanolic and aqueous extracts after 9 and 12 days respectively. Moreover, the extracts caused reduction in TVC and PTC of Cyprinus carpio fillets. The pH, TVB-N and TBA values increased gradually with the storage time and the lowest changes were measured in treatments containing 4% extracts. As results, it is concluded that the Trigonella foenum-graecum seed ethanolic extract have more anti-microbial properties than aqueous extract.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Staphylococcus aureus, Antimicrobial, Extract, Cyprinus carpio |
| Subjects: | S Agriculture > SH Aquaculture. Fisheries. Angling |
| Depositing User: | Mrs najmeh khajeh |
| Date Deposited: | 10 Apr 2018 06:06 |
| Last Modified: | 12 Mar 2019 04:44 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/1986 |
Actions (login required)
 |
View Item |
