Preliminary Study of the Potential Extracts from Selected Plants to Improve Surface Cleaning

Abstract

Environment hygiene is important for preventing infection and promoting a healthier environment in which to live or work. The goal of this study was to examine the antimicrobial effects of Citrus aurantifolia (key lime) juice and aqueous extracts of Cinnamomum iners (cinnamon) bark and Citrus hystrix (kaffir lime) leaves on the kinetic growth of Pseudomonas aeruginosa and methicillin resistance Staphylococcus aureus (MRSA). Antimicrobial activity was quantitatively evaluated using spectrophotometry and viable cell counts versus bacterial growth time. The fomite surface samples that were used in the second experiment were chosen randomly from the laboratories. They were assessed both before and after intervention using a mixture of commercial disinfectant detergent and lime juice. In the kinetic growth study, the lime juice effectively eliminated P. aeruginosa and MRSA. The cinnamon bark extract was more effective at inhibiting P. aeruginosa than MRSA. The kaffir lime leaf extract demonstrated bacteriostatic activity for the first 60 min, which then weakened after 90 min for both bacteria. The lime juice extract and commercial disinfectant mixture effectively disinfected the fomites. Further studies of the use of key lime juice as a disinfectant in the hospital environment should be conducted, as C. aurantifolia exhibits antibacterial activities against endemic microbes.

Polyphenol Profile and Pharmaceutical Potential of Quercus spp. Bark Extracts

“…Tree barks are widely used in traditional medicine to treat several diseases because of their medicinal properties grounded in the presence of phenolic compounds that can have antioxidant, antimicrobial, and anti-inflammatory activities [1,2,3]. The bark of Quercus species in particular is receiving increased attention because of its diverse traditional medicinal uses, its abundance and the low price of its wood residues, such as bark [4].…”

Selection of Effective Plant Extract as A Disinfecting Agent using Hot and Cold-water Extraction

“…The surface swabbed sample of the respective areas were diluted respectively in 10 ml sterile saline and then 1ml of each sample was pour plated into the nutrient agar plate in two replicates. The plates were then incubated at 37 °C for 24 hrs (Vong et al, 2018;. The number of colony forming unit per area sample=CFU/cm 2 was calculated using the formula (National Infection services, 2017).…”

“…Floor surfaces are often covered by the dust containing of organic pollutants, fibres, particles, polycyclic aromatic compounds, minerals, metals, bacteria, pollen, allergens, etc. (Vong et al, 2018;APIC). Some of the clinically important bacteria found mainly in the indoor environment floors are Staphylococcus aureus, Bacillus sp., Pseudomonas aeruginosa, Escherichia coli, Salmonella sp., Klebsiella pneumonia, etc.…”

“…(Gupta, 2017;North Star Mat Services, 2019). Disinfection is very much necessary in the cleaning process which contributes to broad mi-crobiological sterilisation (Vong et al, 2018). The term 'disinfection' means the process of reducing or eliminating the harmful microorganisms from inanimate objects and surfaces (Mc Keen, 2012).…”

UHPLC-MS profiles and antidiarrheal activity of Quercus coccinea münchh. and Quercus robur L. employing in vivo technique

“…The anti-inflammatory, antibacterial, hepatoprotective, antidiabetic, gastroprotective, and antioxidant activity were assessed in previous reports (Moharram et al, 2015;Taib et al, 2020). It was reported that the biological effects of Quercus species were attributed to their high content of polyphenolic compounds which possess anti-inflammatory, antioxidant, and antidiarrheal activities (Salem et al, 2016;Dróżdż and Pyrzynska, 2018;Vong et al, 2018). The identified polyphenolic compounds in Quercus species were related to flavonoid, tannins and proanthocyanidins classes (Şöhretoğlu and Renda, 2020).…”