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Title: Inactivation of the enveloped bacteriophage phi 6 butylated hydroxytoluene and butylated hydroxyanisole

Journal Article · · Antimicrob. Agents Chemother.; (United States)
DOI:https://doi.org/10.1128/AAC.10.1.96· OSTI ID:5797046

Butylated hydroxytoluene (BHT) is a potent inactivator of the enveloped bacterial virus phi 6 at concentrations as low as 3 x 10/sup -5/ M. The viral envelope is not removed by BHT treatment, in contrast to the effects of exposure to the detergent Titon X-100. BHT-treated viruses are morphologically indistinguishable from controls but are defective in their abilty to attach to the host cell. Temperature at the time of exposure was found to be a crucial factor in the effectiveness of BHT against phi 6. A precipitous drop in the degree of inactivation by 3 x 10/sup -5/ M BHT occurred when the temperature was lowered from 20 to 15/sup 0/C. Calcium ions were found to potentiate te effect of BHT, particularly at lower temperatures where BHT alone was relatively ineffective. Barium and strontium, but not magnesium, were also effective in enhancing the activity of BHT. A structurally related molecule, butylated hydroxyanisole (BHA), was also found to inactivate phi 6 virus, but higher concentrations were required than with BHT. Both BHT and BHA are commonly used as food additives, have apparent low toxicity to humans and other animals, and are potentially useful as antiviral agents.

OSTI ID:
5797046
Journal Information:
Antimicrob. Agents Chemother.; (United States), Vol. 10:1
Country of Publication:
United States
Language:
English