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Updated: Jan 27, 2026

Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores
Published on: April 15, 2019
Production of Stable Bacillus stearothermophilus Spores
1Division of Dairy Microbiology, National Dairy Research Institute, Karnal-132001, India.
Abstract:
A technique has been developed for production of a stable suspension of spores of Bacillus stearothermophilus var. calidolactis . The organism was grown in a sporulating medium on a rotary shaker at 55°C. After 4-5 d, spores were centrifuged and washed to obtain a clear spore suspension, which was able to detect as low as 0.008 I.U./ml of penicillin in 2 h. The spore suspension retained its viability up to 5 months.
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