RT Journal Article SR Electronic(1) A1 Manson, Eileen E. D. A1 Pollock, M. R.YR 1953 T1 The Thermostability of Penicillinase JF Microbiology, VO 8 IS 1 SP 163 OP 167 DO https://doi.org/10.1099/00221287-8-1-163 PB Microbiology Society, SN 1465-2080, AB SUMMARY: Extracellular penicillinase produced by the growth of five different strains of the genus Bacillus in casein hydrolysate is rapidly inactivated at 100°, but can be strikingly protected against such inactivation by addition of 1% gelatin or high molecular weight substances present in tryptic digest and meat infusion broth., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-8-1-163