Antimicrobial Activity of Selected Mosses on Obafemi Awolowo University Campus, Ile-Ife, Nigeria

Abstract

The present study aimed to evaluate antimicrobial activity of ethanol, methanol, schnapp (40% alcohol), oil palm wine and Raffia palm wine extracts of moss species Archidium ohioense, Pelekium gratum and Hyophila involuta against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans and Candida pseudotropicalis. The antimicrobial activities of the alcoholic extracts were tested against selected microorganisms using agar well diffusion method. Minimum inhibitory concentrations (MIC) of the extracts were determined using standard methods. The antimicrobial test of the extracts on selected organisms revealed that the methanolic and ethanolic extracts of the mosses studied were inactive against all the bacteria and fungi screened, while the schnapp, Oil palm wine and Raffia palm wine extracts showed significant activity against the selected organisms. The minimum inhibitory concentration (MIC) value of the extracts on the test organisms ranged from 1.25 to 40 mg/ml. The study concluded that the extracts of the mosses studied contain pharmacologically active constituents which may be responsible for their antimicrobial properties.

Utilization of the First Land Plants (Bryophytes) as a Source of Beneficial Bioactive Chemicals

“…Therefore, these mosses pretend to have significant pharmaceutical and a source of drugs and bioactive chemicals. A common moss, Hyophila showed a high intensity of colors in the presence of flavonoids, terpenoids, saponins, cardiac glycosides and methanolic extracts which was further followed by ethanolic and aqueous crude extracts 47 Makinde et al 48 studied the presence and absence of secondary metabolite and their antibiotic potential in Hyophila using different extracts of acetone and ethanol of selected organisms. Only acetone extract tested positive for the presence of flavonoids, whereas alkaloids and cardiac glycosides were identified as present in both acetone and ethanolic extracts.…”

Bazı Karayosunu Türlerinin İn Vitro Antimikrobiyal Aktivitelerinin Belirlenmesi

“…Bu çalışmada kullanılan karayosunu örnekleri iki çalışmada kullanılan ortak olan E. coli, K. pneumoniae, L. monocytogenes, S. aureus, S. typhimurium, P. aeruginosa, C. albicans suşlarına karşı diğer çalışmadaki örneklerden daha az antimikrobiyal aktivite göstermiştir.Olasoji ve arkadaşları[21] gerçekleştirdiği çalışmada 3 farklı karayosunu örneğinin etanol ekstraktlarının 4 bakteri ve 2 maya suşuna karşı antimikrobiyal aktivite belirlenmiştir. Çalışmada kullanılan E. coli, B. subtilis, S. aureus, P. aeruginosa, C. albicans suşları her iki çalışma içinde ortaktır.…”