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THE IN VITRO PROTECTION OF PENICILLIN FROM INACTIVATION BY PENICILLINASE

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Science  17 Aug 1945:
Vol. 102, Issue 2642, pp. 174-175
DOI: 10.1126/science.102.2642.174

Abstract

(1) A combination of penicillin and immune plasma protein has been obtained which possesses bacteriostatic activity.

(2) The presence of the penicillinase immune plasma protein in this mixture protects penicillin in vitro from destruction by penicillinase.