Molecules, Vol. 24, Pages 3415: Preparation and Application of Bioshell Calcium Oxide (BiSCaO) Nanoparticle-Dispersions with Bactericidal Activity

Molecules, Vol. 24, Pages 3415: Preparation and Application of Bioshell Calcium Oxide (BiSCaO) Nanoparticle-Dispersions with Bactericidal Activity Molecules doi: 10.3390/molecules24183415 Authors: Sato Ishihara Nakamura Fukuda Takayama Hiruma Murakami Fujita Yokoe Scallop-shell powder (SSP) heated at high temperature exhibits high pH and broad antimicrobial activity. Bioshell calcium oxide (BiSCaO) is an SSP composed mainly of calcium oxide. It is poorly water-soluble under alkaline conditions and the generated precipitate can plug spray nozzles. The aim of this study was to establish that BiSCaO dispersion caused no significant CaO loss and plugging of spray nozzles, and to evaluate its deodorization and microbicidal abilities and its ability to reduce the concentrations of NO2− and NO3−. BiSCaO dispersions were prepared by mixing various concentrations of BiSCaO suspension, while phosphate compounds such as Na3PO4, Na2HPO4 or NaH2PO4 and the pH, average diameter, zeta potential, and form of the compounds with cryo-SEM were evaluated. We evaluated deodorization using tainted pork meat and microbicidal efficacy using contaminated suspension with normal bacterial flora. The concentration of NO2− and NO3− after mixing BiSCaO dispersion and pure water containing a high proportion of NO2− and NO3− were measured. BiSCaO dispersion formed with Na2HPO4, whose ratio to...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research