So Dr. Quan began to continue to introduce:

"What we're doing now is to mix refined rice and refined flour, grind it into a soup paste, and then put it in a tank to ferment for a week.

Look, here, the upper layer has formed a skin of moldy material, which we scrape off every once in a while and store it separately, and after a few days we can collect a large jar. ”

Everyone's eyes followed Dr. Quan's fingers and saw a row of large glass jars on the wooden shelves, which were the kind of cylindrical wide-mouth glass jars that are often seen in homes or snack bars for kimchi.

"After storing it for a period of time, take out these spoiled dough and put it into an incubator for culture, what we have in the electric incubator is, and we should be able to make it in the future, so these devices shouldn't be a problem, right?"

Doctor Quan looked at everyone, and at this time, a group of science and engineering men such as Boss Luo Kangda Xiao Fei and others in the crowd nodded violently, so Doctor Quan then introduced:

"After three days of incubation in an incubator, the paste was taken out and the paste was placed in a large glass funnel with a bottom filled with medical cotton.

Everyone, look here, this is what we have in the infirmary, I hope Mr. Zhao, after your glass factory is put into operation, you will make us a few more, no problem, right? ”

Doctor Quan turned his head and found Zhao Xihe and Hou Xianglin in the crowd and asked questions.

"No problem at all, as long as you need it, we can make it more complicated than this, and there is no transparency requirement anyway, right?"

Teacher Zhao's answer was very crisp, and Hou Xianglin was also nodding.

So Dr. Quan nodded with satisfaction and continued:

"The next step is to introduce distilled water, see? Those small pots with pipes are specially made for distilled water.

So I'll make it live now, and a few doctors will help me. ”

So Duan Fang Huang came over and took out a glass bottle from the incubator, which was a cultivated paste containing mold, and then poured some of it into the funnel.

"Note that the distilled water is poured into the funnel slowly and without pause, and you see, the distilled water dissolves the moldy material in the funnel, and then filters through the cotton to form a primary liquid containing penicillin.

Filter a few more times, a process that needs to be done at least three times...... Did you find it? The cloudy gray-green liquid is now a little transparent, right? Well, the main purpose of filtering three times is to remove impurities and hygiene, and it will be even better if we have a sterile room operation in the future......

So, the next step is to purify it further, put the primary liquid into this glass jar, and then put in the salad oil......"

When Dr. Quan said this, some people in the crowd couldn't help but ask questions, so Dr. Quan had to let several other doctors continue to operate and answer everyone's questions by himself.

"Yes, yes, you're right, it's in Mr. Sun's kitchen, don't worry, we don't use it much, it won't affect everyone's life......"

"Its practical canola oil is also possible, but we still use salad oil considering medical hygiene standards."

Then Dr. Quan continued to explain:

"Okay, now pay attention, after the primary liquid is mixed with salad oil, stir it in a blender, that's right, what you see is the kind of ordinary household soybean milk machine sold in the supermarket, we asked Boss Luo to modify it a little, it takes about ten minutes or more, and then takes it out and rests.

Slowly, you will see that there are three layers of substance in the glass jar. Oil and intermediate substances are unwanted impurities, because penicillin is water-soluble, so we use this method to further purify the primary liquid, please see, here, turn on the small faucet at the bottom, and now what flows out is basically a transparent liquid, well, this is a refined liquid.

Of course, the process has not yet been completed, and everyone looks at it, this is activated carbon.

We can't make our own industrial activated carbon, but it doesn't matter, we use an electric wok to dry fry refined flour, and the formed thing after frying paste and black is actually activated carbon, of course, it is best to do it in a sterile environment!

Oh, of course, you can also use charcoal and coal, but we still consider medical hygiene standards, so use activated carbon, so that there will be fewer impurities.

Note that then the activated charcoal is mixed with the refined liquid, yes, this is to allow the activated charcoal to absorb penicillin, and then put it into another large glass funnel that is also stuffed with medical cotton, this time with distilled white vinegar...... Well, yes, yes, yes! It's also something in the kitchen, filter once, twice, preferably more than three times.

And then with soda, yes, yes, yes! We are using medical soda now, so let's make our own soda in the future, right, Mr. Zhao? No problem? That's great, soda has a wide range of applications in medical medicine...... Okay, let's not go far, now on to that.

Guys, after a series of filtration, a bottle of semen@liquid, oh no, a bottle of refined penicillin liquid is done! Note that the whole process should be done in a sterile environment, of course, we don't have that right now, but it should be in the future, right?

Alright guys! Now we have penicillin! It's this ---- the liquid in the glass test tube in my hand! ”

At this time, Dr. Quan held a glass test tube in his hand and said to everyone proudly.

Next, almost everyone personally looked at the glass petri dish with the agar slices, and the spots on it were the phenomenon of staphylococci being dissolved.

Is staphylococcus a sample taken from saliva after a person with a cold went to the doctor last time, or is it Staphylococcus aureus!

Doctors cultured it in glassware with rice broth and saw the staph bacteria forming a circle around a drop of penicillin.

Everyone is very excited, the reason is not that this "elixir" can be sold all over the world for money as someone just said, but that everyone thinks that if a large number of laborers are introduced, all kinds of infectious diseases will also come to everyone, in this era, there are no antibacterial drugs in hand, once the plague breaks out, it is a more terrible thing than war.

So some people in the crowd thought of cinchona cream, homemade quinine, and various other anti-inflammatory drugs, and some people actually thought of banyan root......

The discussion was very enthusiastic, and the people in the chemical group were also discussing how to produce quinine and other anti-inflammatory and bactericidal drugs at this time, and finally everyone's attention focused on Qiao Xiaomu and Gui Xianning, one of them is engaged in coal coke chemical industry, and the other is engaged in fine chemicals, and their subdivisions belong to the field of chemical pharmaceuticals.

At this time, the members of the chemical engineering group replaced the doctors as the keynote speakers.

Among them, how to get the coal coke chemical industry up as soon as possible became the main topic at that time.

Because dyes, medicines, explosives @ medicine and calcium carbide synthetic ammonia series are the four major areas of the coal tar chemical industry, Mr. Zhao, Qiao Xiaomu and Gui Xianning said on the spot that according to the strong advice of the doctors, we do intend to do the preliminary technical preparation of salicylic acid and aspirin with the help of the doctors, and the next step is sulfonamides, which are all from the important products of coal coke chemical industry--- coal tar.

Qiao Gui and the others also said on the spot that there are many good things in coal tar, and now they should consider building a laboratory in the karst cave, first carry out small-scale experimental research and technical preparation, and then, in the near future, go directly to the coal dry distillation equipment......

The discussion in the cave was very lively, and finally came to a very important decision---- the establishment of a medicinal chemistry laboratory, which was attended by all members of the chemical industry group and doctors, and this laboratory was led by Quan Yishan and Zhao Xihe.

Later, the laboratory was very rich in scientific research results, and a few years later, this medicinal chemistry laboratory born in the cave became the first comprehensive private laboratory in the Australian Commonwealth, and it is also a world-famous authoritative laboratory with international first-class level.

Of course, that's another story.