Aims: Diabetic foot ulcer is a significant complication of diabetes mellitus and often proceed lower extremely amputation. Propolis is a naturally occurring anti-inflammatory bee derived protectant resin. Previously, topically applied propolis has been reported to reduce inflammation and improves cutaneous ulcer healing in diabetic rodents. This study aimed to determine the Libyan honey and propolis activity and honey against bacteria isolated from diabetic foot ulcer lesion Study Design: In vitro antimicrobial activities of honey and crude hexane and methanolic extract of Libyan propolis against bacteria isolated from diabetic foot ulcer lesion Place and Duration of Study: Samples collected from patient in Tripoli Iben Nafees Hospital using disc and agar diffusion method. Methodology: Disk diffusion method on groups of aerobic and anaerobic bacteria were obtained from diabetic foot lesion. Results: The result showed that the percentage of aerobic bacteria isolated from diabetic lesion was about 74%, which include MRSA, E. coli, Ps. aeruginose, Citrobacter, Pantoea, Proteus, Staphylococcus epidermis, Enterobacter and Serratia bacteria. Whereas anaerobic bacteria reported about 26% of Clostridium, Bacteroides, and Lactobacillus Jensenii. Conclusion: It was concluded that the honey and propolis extract had antibacterial activity against a different type of aerobic and anaerobic bacteria that were isolated from diabetic foot ulcer lesion.
Basma Mohamed K Doro(1-2019)

The antibacterial activity of peppermint oil and different extracts of Mentha piperita against some Gram-positive and Gram-negative bacterial strains was evaluated in the present research work by agar well diffusion method. It was found that the distilled concentrations of essential oil inhibited the growth of microorganisms and the results were comparable with those of antibiotic gentamycin. Essential oils showed a wider spectrum of activity but less strong inhibition as compared to the investigated commercial antibiotic. Minimum inhibitory concentrations (MICs) for the bacterial species ranged from 0.4% to 0.7% v/v. The oil and extracts also exhibited significant antioxidant activity and the oil showed about half potency when compared to the standard BHT. These results indicated the strong antibacterial and antioxidant activities of peppermint oil but additional investigations need to be performed in order to confirm the safety of these concentrations (MIC) for human consumption. Peppermint oil could be used as a good conservation agent by inhibiting some food borne pathogens. arabic 8 English 54
Rajinder Singh, Muftah A. Shushni, Asma Belkheir(5-2015)

Chemical constituents and biological activities of the Mitrella kentii leaf oil were investigated in this study. Gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) were used to determine the chemical constituents of the oil. The oil was evaluated for its ability to inhibit prostaglandin E2 (PGE2) and thromboxane B2 (TXB2) productions in human whole blood using a radioimmunoassay technique. Its inhibitory effect on platelet-activating factor (PAF) receptor binding with rabbit platelets using 3H-PAF as a ligand and its free radical scavenging effect on DPPH were also investigated. Caryophyllene oxide (33.8%w/w), E,Z-farnesol (6.9%), benzyl benzoate (6.5%w/w) and viridiflorol (6.5%w/w) were among the major components of the oil. Even though weak inhibitory activities were observed in both PGE2 and TXB2 assays, significant results were obtained in both PAF receptor binding inhibition and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging effect with IC50 value of 6.6 μg/mL and 155.6 μg/mL respectively. These promising activities warrant the development of the oil as an anti-inflammatory agent. arabic 14 English 74
Sakina Salem Mohammed Saadawi, JURIYATI JALIL, IBRAHIM JANTAN, MALINA JASAMAI(1-2021)