Natural penicillin the Strawberry Roan : there ain't no chemist here all alive that can stay with that mold when it makes that... high dive"

Chemists versus the fungal Strawberry Roan

To the Big Scientists of the Modern Age , natural penicillin from the penicillium mold was like an old moth-eaten cayuse , an old strawberry roan , a has been and a never was .

They saw it as a living being easily broken at the chemical wheel - requiring only a little heat and pressure to make it reveal all of its secrets.

Then the chemists could patent improved analogues of natural penicillin and thus corner the financial market on this precious lifesaver.

But as Montana Slim (Wilf Carter) might have sung it - "There ain't no chemist here all alive that can stay with that mold when it makes that... high dive."

Chemistry PhD = Hubris ?

As penicillium mold spores drift about through the air, the fortunate ones land on a suitably moist food supply.

The spores almost need the moisture more than the food , as they can feed on almost any organic matter.

But when they get stressed, usually when the food supply runs low , they may respond by producing the antibiotics we rather loosely call by the single word 'penicillin' , to keep at bay bacterial competitors for that same food.

Note I said antibiotics in the plural, because, depending on the particular food source at hand, each penicillin produced might be in fact ever so slightly different.

Technically, the key part of the penicillin molecule - the famous strained beta lactam ring - must always be there , for it to work as a antibiotic .

But the extra bit on the side of that key component - the side chain - can vary widely and will tend to produce various kinds and strengths of antibiotics.

Many of them offer different - useful - qualities - from the original penicillin (type G).

Now, in Nature , all these marvellous variants are mere happy accidents induced by the chance of varying wind currents and drifting spores.

In the Lab, biologists and chemists feed the penicillium spores all sorts of extra food treats , (fancied up ,the technical word for these humble food supplements is precursors) hoping to see a useful variant emerge.

When the new improved variants do emerge , the chemists tend to glorify this 'brute force' approach to the discovery of new chemicals by daring to call the results "semi-synthetic" penicillin.

But this just hubris and hooey.

It is merely a way for human chemists - who tried and failed to make penicillin from scratch* like the tiny mold spores so readilyand so easily did - to regain some lost luster for their profession.

(*To chemists , this is their holy grail of  "total synthesis".)

Because it is really no different than the ancient practise of farmers trying out plants on differing soil mixtures and cultivation techniques and running with the methods that gave the best yields.

The chemists, rather like the British , lost really big in WWII.

Partly to physics (the A-Bomb) and partly to biology (natural penicillin triumphing over the chemists' failure to make synthetic penicillin) .

And like the British, they've been trying to re-write the history of WWII ever since ....

Penicillin : a bunch of biologists who put all their faith in chemistry vs two chemists who put all their faith in biology

In the Alice Through the Looking Glass world of wartime penicillin it should hardly be surprising that about the only strong supporters of natural ,biological, penicillin in the upper echelons of the overall enterprise were two professional chemists : Larry Elder of the American Office for Production Research and Development (the OPRD) and Harry Jephcott of the British drug company, Glaxo.

Or that the group most strongly bewitched by the thought of synthetic penicillin were a bunch of medical doctors with Howard Florey and Alexander Fleming leading the charge (with the OSRD and MRC close behind): the sort of scientists who might have been thought would normally occupy a place at the biological end of  hard science.....

Would penicillin have been available for patients in 1930, if Fleming had produced his '29 paper - and then died ?

If only pneumonia had killed Alec, not John....

Imagine - if you will - that you're at a medical meeting - one of hundreds and hundreds that Alexander Fleming routinely attended between the Fall of 1928 and the Fall of 1942 and you happen to overhear Fleming regaling a small audience in the corridor about his 'wonderful' penicillin.


It is, he says (translated into today's medical terminology) a wide spectrum totally non-toxic anti-bacterial agent , the only one he as ever seen that doesn't harm the natural healing powers of the body's blood.

It is, Fleming says with great force , simply a great lab clearing agent for vaccine studies and potentially a useful antiseptic...

....And ? AND ?!  You wait for the other shoe to drop, somewhat impatiently : how is it as a systemic, for saving those dying from bacterial infections ?

Oh that, says Fleming indifferently , its useless for that.

And, he adds brutally honestly , as an antiseptic it is slow acting and is so unstable that it will only be useful if the chemists can synthesize it - but they haven't so far.

For fourteen years , I believe only one man stood between penicillin the potential life-saver for millions and penicillin the actual life saver for millions and that man was - unfortunately - Alexander Fleming.

The history of penicillin might have been quite different if only he and not his brother John had died of the pneumonia that Fleming's 1928 imperfect penicillin would have cured.

I can not believe that Fleming could offer such frequent public build-ups of his wonderful penicillin without someone in the audience venturing : well how do you rate its life-saving systemic qualities then ?

Fleming in his honest (but incorrect) way , would have had to say in public what he deliberately omitted from his published articles : 'as a systemic, I believe that penicillin is useless'.

This - more than anything someone else did or didn't do - dammed penicillin to wander useless in the desert for 15 years : its own discoverer damning it with the very faintest of praise ....