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Sherri Maxwell, B.S., Kelly Bright, Ph.D., Charles P. Gerba, Ph.D.
Department of Soil, Water and Environmental Science
University of Arizona
Tucson, AZ
April 20, 2011
The results for the inactivation of bacterial species by exposure (in-vitro) to D’Viness (oral liquid cold&flu product) are shown in Table 5. Greater than a 5-log reduction was observed for Ps. aeruginosa after a 60 minute exposure and Listeria monocytogenes after a 5 minute exposure to D’Viness. In contrast, 3.3, 1.8, 0.12 and 3.8 log reductions were observed for the species E. coli, S. pyogenes, A. niger, and Canidida albicans after 60 minutes of exposure to product D’Viness, respectively. D’Viness was also very effective against Influenza virus A with greater than 99% of the virus inactivated in less than 30 seconds. (D’Viness had complete inactivation of all available virus in the samples) D’Viness was found to be effective against the various test bacteria to varying degrees, except the mold Aspergillus niger, for which it did inhibit further growth of the mold.
D’Viness & PE899 formerly called Absolute Fx: Effective Against Human Corona Virus
Absolute Fx, A Natural Peptide-Based Antimicrobial With Broad-Spectrum Activity.
Enue E. Sicairos, Kelly R. Bright*, and Charles P. Gerba
Department of Soil, Water and Environmental Science
The University of Arizona
Tucson, AZ 85721
Greater than a 4-log10 reduction (99.99%) in human coronavirus 229E was observed within 30 seconds of exposure to both a 1:200 and a 1:400 dilution of Absolute Fx. Absolute Fx was found to be highly effective against both Gram-negative and Gram-positive bacteria with slight variability in resistance between species. Although it did effect a reduction in the number of the non-enveloped feline calicivirus, it was, not surprisingly, more effective against the lipid containing human coronavirus. Absolute Fx appears to exhibit antimicrobial activity against a wide variety of both bacteria and viruses.
Greater than a 5-log10 reduction (99.999%) was observed for all of the Gram-negative species and the Gram-positive L. monocytogenes after a 30 second exposure to both Absolute Fx concentrations, with the only exception being a 3.90-log10 reduction (99.9%) of P. aeruginosa with the 1:800 dilution. In contrast, 4.23-log10 (99.99%) and 3.71-log10 (99.9%) reductions were observed for the Gram-positive species S. aureus after 30 seconds of exposure to the 1:400 and the 1:800 Absolute Fx, respectively. After 5 minutes, greater than a 5.0-log10 reduction (99.999%) was observed for P. aeruginosa and greater than a 6.0-log10 reduction (99.9999%) was observed for S. aureus at both Absolute Fx concentrations.