"Then wash the activated carbon with distilled water.
"Next, adjust the solution to acidic so that the penicillin molecules turn into free state...
"Followed by extraction with alcohol, neutralize with an alkaline solution, separate the solution, and then extract with acid again...
"Finally, the product obtained after filtration is penicillin... Oh, it should be called a type-one antibiotic."
Joseph finished in one breath, and then said, "The drug obtained should be added to the previously cultivated bacteria. If we can see the bacteria being eliminated, it means the drug is effective. If the bacteria are unaffected, then we need to modify the experimental conditions and start over."
He was well aware that making penicillin was extremely difficult; he had only told Lamark about the basic theoretical foundation. This was like telling Columbus in the 15th century, young man, there's a new world somewhere on this earth, go for it!