Willeria sinensis maserasyon yağı ile Bacillus subtilis ve Candida tropicalis inaktivasyonu

In this study, the antimicrobial effect of maceration oil obtained from W. sinensis flowers oil soaked in olive oil on B. subtilis and C. tropicalis was investigated. In addition, the efficacy of W. sinensis maceration oil on inactivation of the strains of B. subtilis and C. tropicalis inoculated bulgur (pounded wheat) was investigated using dip incubation method. The components of W. sinensis macerate were analyzed by GC-MS and found the main components as olealdehyde (38.03%), oleic acid (29.13%), 9- octadecenoic acid (15.09%), (Z)-9,17-octadecadienal (7.87%) and palmitic acid (5.97%). Broth Microdilution and Agar Well Diffusion Method for antimicrobial activity of W. sinensis and also Modified TDtest for persistent/tolerant levels of microorganisms were used. Minimum Inhibitory Concentrations (MICs) of W. sinensis were 10.3 mg/mL and 9.6 mg/mL for B. subtilis and C. tropicalis while the inhibition zones were 2.23 mm and 2.07 mm, respectively. In TDTest which was made persistent/tolerant screening of microorganisms in W. sinensis condition, both of microrganisms were persistent sensitive. W. sinensis at 50 µL, 100 µL and 150 µL caused an almost 2-log reduction on the number of B. subtilis and C. tropicalis on bulgur.Bu çalışmada, zeytinyağına batırılmış W. sinensis çiçeklerinden elde edilen maserasyon yağının B. subtilis ve C. tropicalis üzerindeki antimikrobiyal etkisi araştırıldı. Ek olarak, W. sinensis maserasyon yağının, bulgura (dövülmüş buğday) aşılanmış B. subtilis ve C. tropicalis suşlarının inaktivasyonu üzerindeki etkinliği daldırma inkübasyon metodu kullanılarak araştırıldı. W. sinensis maserat bileşenleri GC-MS ile analiz edildi ve ana bileşenleri olealdehit (%38.03), oleik asit (%29.13), (Z)-9,17- oktadekadienal asit (%15.09), (Z)-9,17-oktadekadienal (%7.87) ve palmitik asit (%5.97) olarak bulundu. W. sinensis'in antimikrobiyal aktivitesi için Sıvı Mikrodilüsyon ve Agar Kuyucuk Difüzyon Yöntemi ve ayrıca kalıcı/toleranslı mikroorganizma seviyeleri için Modifiye TDtest kullanıldı. W sinensis’in Minimum İnhibitör Konsantrasyonları (MİK), B. subtilis ve C. tropicalis için 10.3 mg/mL ve 9.6 mg/mL iken inhibisyon zonları sırasıyla 2.23 mm ve 2.07 mm idi. W. sinensis varlığında mikroorganizmaların kalıcı/toleranslı taranması yapılan TDTest'te her iki mikroorganizmanın da kalıcı duyarlılığı saptandı. W. sinensis’in 50 µL, 100 µL ve 150 µL’si, bulgur üzerindeki B. subtilis ve C. tropicalis sayısında neredeyse 2 log azalmaya neden oldu

Antimicrobial performance of methanol extract of Foeniculum vulgare Mill. as a sanitizer agent

In food industry, microbial contamination poses a big challenge. Chemicals used for disinfection compromise food safety and therby health. ofThere is an urgent need for effective safe sanitizers for the inhibition of pathogens in agricultural and food products. In this context, here, we investigated the possibility of using the Foeniculum vulgare methanol extract (ME) in the fight against Escherichia coli, Staphylococcus aureus, and Candida albicans as natural a sanitizer agent candidate. The components of F. vulgare ME were analyzed by GC-MS. Broth microdilution method and Surface disinfection test were used for antimicrobial activity and logarithmic inhibition, respectively. The main substances were anethole (50.44%), estragole (13.59%) and benzoic acid (13.58%). Minimum ınhibitory concentrations (MICs) of F. vulgare were 0.1 g/mL for S. aureus and C. albicans while it was >0.1 g/mL for E. coli. In surface disinfection test which investigated the survival of E. coli, S. aureus and C. albicans exposure to F. vulgare sanitizer (F-SAN: 10%), F. vulgare at 50, 100 and 150 μL caused an almost 8-log reduction in E. coli in clean condition (0.3 g/mL BSA). In S. aureus, 150 μL of F. vulgare caused about 4.8 and 4.7 log reduction in clean and dirty surface (3 g/mL BSA), respectively. The highest colony reduction was in C. albicans with ˃4.93 log reduction in both environments. The results suggest that F. vulgare methanol extract could be a strong natural sanitizer against pathogens

Antimicrobial performance of methanol extract of Foeniculum vulgare Mill. as a sanitizer agent

124-130In food industry, microbial contamination poses a big challenge. Chemicals used for disinfection compromise food safety and therby health. ofThere is an urgent need for effective safe sanitizers for the inhibition of pathogens in agricultural and food products. In this context, here, we investigated the possibility of using the Foeniculum vulgare methanol extract (ME) in the fight against Escherichia coli, Staphylococcus aureus, and Candida albicans as natural a sanitizer agent candidate. The components of F. vulgare ME were analyzed by GC-MS. Broth microdilution method and Surface disinfection test were used for antimicrobial activity and logarithmic inhibition, respectively. The main substances were anethole (50.44%), estragole (13.59%) and benzoic acid (13.58%). Minimum ınhibitory concentrations (MICs) of F. vulgare were 0.1 g/mL for S. aureus and C. albicans while it was >0.1 g/mL for E. coli. In surface disinfection test which investigated the survival of E. coli, S. aureus and C. albicans exposure to F. vulgare sanitizer (F-SAN: 10%), F. vulgare at 50, 100 and 150 μL caused an almost 8-log reduction in E. coli in clean condition (0.3 g/mL BSA). In S. aureus, 150 μL of F. vulgare caused about 4.8 and 4.7 log reduction in clean and dirty surface (3 g/mL BSA), respectively. The highest colony reduction was in C. albicans with ˃4.93 log reduction in both environments. The results suggest that F. vulgare methanol extract could be a strong natural sanitizer against pathogens

Evaluation of Citrus reticulata essential oil: Chemical composition and antibacterial effectiveness incorporated gelatin on E. coli and S. aureus

In the present study, we evaluated the antibacterial activity of Citrus reticulata (C. reticulata) essential oil-incorporated gelatin film solution against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The minimum inhibitory concentration (MIC) of C. reticulata essential oil (CrEO) on E. coli and S. aureus were found to be 10.1 and 9.1 mg mL(-1), respectively, using spectrophotometric microdilution technique. The antimicrobial effect of CrEO alone and incorporated gelatin-based film solutions (CrEO-F) against these pathogens were determined by the disc diffusion method. While the inhibition zones of CrEO were 2.4 mm and 10.05 mm, CrEO-F was reported as 1.5 and 7.8 mm against E. coli and S. aureus, respectively. These findings demonstrated that the CrEO can compete with coating agents with antimicrobial additives and it can find a place in the application areas. Besides, the chemical composition of the CrEO was determined by GC-MS