In a preliminary communication Fried, Koerber, and Wintersteiner (1) reported the results of their study in 1944 on the chemical nature of (‘flava-cidin,” the penicillin produced by aspergillus $avus. The evidence then available seemed to indicate that flavacidin was a new penicillin not produced by Penicillium notatum; namely, 3-pentenylpenicillin, mixed with some benzylpenicillin (penicillin G).l
No takes yet. Share an insight, caveat, or question.
Adler et al. (1948) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: