Rei Saito

Research and Development, Advanced Analytical Science Research Laboratories, Lion Corporation, Tokyo, Japan


  • Research Article   

    Author(s): Rei Saito46359*, Seiichi Tobe46360, Miyuki Miyake46361, Yukari Sekine46362, Takeshi Takizawa46363, Junichi Sugiyama46364, Yasushi Kakizawa46365 and Shigeru Morikawa46366

    Quaternary cationic surfactants with bactericidal activity such as Didecyldimethylammonium chloride (DDAC) show an inactivation effect on enveloped viruses, but they have little effect on non-enveloped viruses such as noroviruses. Therefore, we examined additives that enhance the inactivation effect of cationic surfactants by using Feline calicivirus (FCV) as a representative of a non-enveloped virus. The result was that SO42- ions, which are a general-purpose salt, had a strong salting-out effect that reduced the solubility of proteins, greatly enhancing the inactivation ability of DDAC. The SO42- ions also enhanced FCV inactivation by other cationic surfactants such as Cetylpyridinium Chloride (CPC) and Benzalkonium chloride (ADBAC). To clarify the mechanism, we evaluated the denaturation and binding process of DDAC to Bovine Seru.. Read More»
    DOI: 10.31858/0975-8453.13.11.751-755

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