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Antibacterial activity of formulated Psidium guajava (guava) hand sanitizer gel on Staphylococcus aureus

Yaun, Emma A.; Vasquez, Brian A.


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    "description": "<p>The primary purpose of the study was to detect the bactericidal potential of a formulated guava hand sanitizer gel on&nbsp;<em>Staphylococcus aureus</em>.&nbsp; The efficacy of this formulation was tested against a bacterial strain through the well-diffusion method. Inhibition of&nbsp;<em>Staphylococcus aureus</em>&nbsp;growth was compared across two independent variables: (a) the type of sanitizer (experimental guava hand sanitizer gel vs. three other commercial brands); and (b) the type of alcohol utilized (experimental guava hand sanitizer gel vs. isopropyl vs. ethyl alcohol). The dependent variable which is the reduction of&nbsp;<em>S. aureus</em>&nbsp;growth rate, was measured by the zone of inhibition in each of the bacterial strains. Experimental design was used to measure the bactericidal potential of guava hand sanitizer gel. Through a two-way ANOVA, no significant difference was found between groups of commercial hand sanitizers and the formulated guava hand sanitizer gel (Brand A with a zone of inhibition of of 9.7 mm, Brand B with 9.3 mm, Brand C with 9 mm, and the new formulation with a zone of inhibition of 9 mm). These findings reveal that the reference standard commercial product (Brand A) with a highest zone of inhibition manifests a similar antibacterial property with the formulated guava hand sanitizer gel as revealed by bacterial reduction rate. In conclusion, the formulated hand sanitizer possesses antibacterial potential to inhibit the multiplication of S. aureus. Further studies should be conducted on other therapeutic activity parameters and the elucidation of structure for the active constituent with potential as bactericidal.</p>", 
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    "title": "Antibacterial activity of formulated Psidium guajava (guava) hand sanitizer gel on Staphylococcus aureus", 
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      "volume": "11", 
      "issue": "1", 
      "pages": "1-6", 
      "title": "University of the Visayas - Journal of Research"
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    "language": "ang", 
    "references": [
      "Biswas, B., Rogers, K., McLaughlin, F., Daniels, D., & Yadav, A. (2013). Antimicrobial activities of leaf extracts of guava (Psidium guajava L.) on two gram-negative and gram-positive bacteria. International Journal of Microbiology, 2013.", 
      "Guintu, F. Z., & Chua, A. H. (2013). Effectivity of guava leaves (Psidium guajava) as mouthwash for patients with aphthous ulcers. Philippine Journal Of Otolaryngology-Head And Neck Surgery, 28(2), 8-13.", 
      "Mailoa, N., Maherdradatta, M., Laga, A., & Pjide, N. (2013). Tannin Extract of Guava Leaves (Psidium guajava). Variation with concentrated organic solvents. International Journal of Scientific and Technology Resesrch, 2(9), 2277-8616", 
      "Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Exprtimental and Quasi-Experimental Designs for Generslized Casual Inference. New York, USA: Houghton Mifflin Company.", 
      "Swartzberg, J. E. (2014, September). 6 Things To Know About Hand Sanitizer. Berkeley Wellness Retrieved from http://www.berkeleywellness.com/self-care/over-counter-products/article/6-things-know-about-hand-sanitizers", 
      "Tortora, G. J., Funke, B. R., & Case, C. L. (2010). Microbial Diseases of the skin and eyes. In C. L. Case (Ed.) Microbiology an Introduction. P. Education edition (pp. 584-591). San Francisco, USA: Pearson Benjamin Cummings", 
      "Turner, R. F., Fuls, J. L., & Rodgers, N. D. (2010). Effectiveness of hand sanitizers with and without organic acids for removal of rhinovirus from hands. Antimicrobial Agents and Chemotherapy, 54(3), 1363-1364."
    ], 
    "keywords": [
      "formulated guava hand sanitizer gel,, hand sanitizer commercial product,, Staphylococcus aureus"
    ], 
    "publication_date": "2017-12-18", 
    "creators": [
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        "orcid": "0000-0003-4376-5428", 
        "affiliation": "University of the Visayas", 
        "name": "Yaun, Emma A."
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        "affiliation": "University of the Visayas", 
        "name": "Vasquez, Brian A."
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