Concentrated Bioshell Calcium Oxide (BiSCaO) Water Kills Pathogenic Microbes: Characterization and Activity

Area of Science:

• Materials Science
• Microbiology
• Environmental Science

Background:

• Bioshell calcium oxide (BiSCaO) is known for its deodorizing and antimicrobial properties.
• The potential application of BiSCaO Water as a disinfectant and deodorizer requires further investigation.

Purpose of the Study:

• To evaluate the efficacy of BiSCaO Water as a microbicidal and deodorizing agent.
• To characterize the properties of BiSCaO Water, including its nanoparticle composition and pH.

Main Methods:

• BiSCaO Water was prepared by repeatedly washing BiSCaO precipitate with clean water.
• Nanoparticle characterization and pH measurements were performed.
• In vitro assays were conducted to assess microbicidal activity against various bacteria and viruses.
• Deodorization activity was compared with other antimicrobial reagents.

Main Results:

• BiSCaO Water contained nanoparticles (400-800 nm) and had a pH > 12.7.
• It eliminated over 99.9% of tested bacteria (e.g., E. coli, S. aureus) and viruses (e.g., Influenza A, Feline calicivirus) within 15 minutes.
• BiSCaO Water exhibited potent deodorization and broad-spectrum microbicidal efficacy comparable to or exceeding other tested reagents.

Conclusions:

• BiSCaO Water is a highly effective reagent for disinfection and deodorization.
• Its broad-spectrum activity against pathogenic bacteria and viruses, including enveloped and nonenveloped types, highlights its potential utility.