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Effect of chlorine‐releasing agents on Bacillus subtilis vegetative cells and spores
Author(s) -
Bloomfield Sally F.,
Arthur M.
Publication year - 1989
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1989.tb00233.x
Subject(s) - bacillus subtilis , pharmacy , spore , library science , medicine , history , classics , biology , microbiology and biotechnology , family medicine , computer science , bacteria , genetics
Buffered solutions of chlorine‐releasing agents, sodium hypochlorite (NaOCl), sodium dichloroisocyanurate (NaDCC), and chloramine‐T, showed similar activity against vegetative cells of Bacillus subtilis but there was considerable variation in activity against spores, NaOCl showing higher activity than NaDCC, which in turn was more active than chloramine‐T. The effect of coat and cortex extraction on sporicidal activity was determined. It was concluded that although spore coats play a role, they do not totally account for chlorine resistance and that the cortex is also involved, probably through its function in maintaining a low water level in the enclosed core. Observed differences in the sporicidal action of NaOCl, NaDCC, and chloramine‐T may be related to their differing ability to produce core and cortex degradation.