After five years of teaching support, Daming became an empire on which the sun never sets.

Chapter 196: Making Penicillin by Soil Method
"Also, the officers and soldiers sent by the imperial court to exterminate the robbers, and possibly the common people, are the side effects of Western medicine."

"In addition, if the villagers do not deal with the officers and soldiers, they will anger the officers and soldiers. The officers and soldiers sent by the imperial court to exterminate the robbers may also kill the villagers together. This is the death of a patient caused by an allergy to western medicine."

"Well, um." The crowd nodded incessantly.

Qin Yu's speech was so simple and easy to understand that there was almost nothing he couldn't understand.

"In addition, there is another benefit of traditional Chinese medicine." Qin Yudao, "When the villagers learn martial arts, learn to use knives and guns, they will become stronger, and they will not be afraid of robbers in the future. This is called improving immunity."

"Traditional Chinese medicine studies nature and uses plants in nature to treat diseases. People live in nature, so they are more in line with the laws of natural survival. Western medicine uses chemical reactions to create medicines that are not found in nature. To treat diseases, respect scientific and technological facts more.”

"Makes sense!" said the crowd.

"Okay, then let's learn about bacteria now." Qin Yudao, "Chinese medicine is not aware of the existence of bacteria at all, because there is no microscope. Therefore, in this aspect, Chinese medicine is much behind Western medicine."

"So when faced with a gang of robbers with a fierce temperament, a large number of people, and more advanced weapons. It is simply too late to teach the villagers to practice martial arts and give them knives and guns. It must rely on the imperial court to send elite officers and soldiers to strangle. If there is no strong And with a powerful slaughter, the villagers will be slaughtered cleanly."

"And penicillin is undoubtedly a group of the most elite officers and soldiers."

"Then the question is, how to make penicillin by the soil method?" Qin Yu said, "During World War II, due to the lack of resources, the Japanese encouraged the private sector to produce penicillin in large quantities. It can be seen that the feasibility of this method is still good. "

"First of all, we must extract penicillium from moldy objects. For example, oranges, cucumbers, etc., preferably cantaloupe." Qin Yu turned around and wrote it down on the blackboard for the students to record.

And the students did not let him down. Not only did they listen carefully, but they also recorded everything in their notebooks.

"The amount of substances used to cultivate Penicillium is very large, because at least dozens, or even hundreds of trials are required to extract a suitable species of Penicillium."

"The second step is to use grains, high-starch potatoes, and boiled juice mixed with rice soup to make a solution of culture medium."

"The third step is to put Penicillium in the medium."

"After a week, the medicinal ingredients can be extracted from the propagating Penicillium."

"While extracting penicillium, a bacterium called staphylococcus was extracted from the patient and used to test the efficacy of penicillin."

"After a week, go to the fourth step. First, filter the culture medium in a funnel, then pour rapeseed oil into the filtered liquid and put it into a wooden barrel to stir, so that the liquid in the barrel will be divided into three layers."

"Take the bottom layer of water for use. That layer of water is the water with penicillin."

"The next step is to remove the impure substances from the water with penicillin. The fifth step is to inject the penicillin solution into the sterilized toner, stir again, and the toner will absorb the penicillin."

"Put the toner in a container, pour it into boiled purified distilled water, and the impurities will be washed out."

"Next, pour in acidic water made of vinegar. Penicillin is a weak acid substance and will not dissolve in acidic water. This step is to further remove alkaline impurities."

"It's followed by an alkaline soda so that the penicillin dissolves out of the toner."

"Then what comes out is a higher-purity penicillin solution."

"The last step is the detection step. Pour the penicillin solution into the staphylococcus petri dish, close the lid and wait for a few days. If there is no change, it means that the penicillin solution was not successful."

"On the contrary, if there is a circle around the dripping solution, it means that the penicillin has dispelled the staphylococcus, which means that the culture solution has been made successfully."

"The penicillin solution can be purified again with sterilized rice paper."

"The prepared penicillin solution is applied to the rice paper, hangs vertically, and the end is immersed in the acid di-alkali-eight solution. Using the paper chromatography method, the layers are layered on the paper to refine the high-purity penicillin."

"Note that a skin test must be performed before using it on a patient. As for the skin test method, it is to inject a little bit under the skin and watch the experimenter's reaction."

Qin Yu was talking on the top, and the students were recording attentively below.

Even Zhu Yuanzhang and Queen Ma joined the record.

In the classroom at this time, there were only two voices, Qin Yu's voice and the students' writing voice.

Because they are all written with a brush, almost everyone has memorized more than a dozen pieces of white paper.

"Okay, finished." Finally, Qin Yu finished teaching, and finally said in conclusion, "Penicillin is the greatest drug invention in the twentieth century, and it plays an even greater role in wars."

"Some wounded soldiers can easily die from bacterial infections, and penicillin is the best drug for treating infections."

"During World War II, penicillin saved the lives of tens of millions of people. Human life span has therefore continued for 15 years."

"Ten million people have been saved? The life expectancy of human beings has continued for 15 years!" The crowd was shocked when they heard this.Although this drug has the risk of allergies, it is definitely a miracle drug in terms of saving tens of millions of people and prolonging human life by 15 years.

There is nothing to doubt!

"Although the method I teach you is a local method, it has been purified several times." Qin Yu added, "The effect has been verified by the Japanese people during World War II, and it is not much worse than the high-tech ones. ."

"It can be said that it is already the best among the folk methods."

"If the village chief has ambition and enough energy, he should strictly follow this method."

"Have ambition? We have this ambition too much." Zhu Yuanzhang said in his heart.

For our sister, no matter how hard it is, we have to make penicillin.

Penicillin, not only can save our sister, but also save wounded soldiers, and other people infected with bacteria.

If you don't do such heaven-defying magic medicine, you are not a qualified emperor.

In addition, we also have enough energy, and we are not doing it ourselves. There are hundreds of imperial doctors in the palace.

……

After such a long class, it was soon over in the morning.

Qin Yu announced his dismissal.

Originally, Emperor Zhu had a lot of questions he wanted to ask Qin Yu, such as the Hu Weiyong case, and the unfinished problems of corrupt officials, but the most important thing at the moment was to make a magic medicine that could save his sister.

Therefore, the questions he wants to ask can only be saved for next time.

Soon, the two walked out of the village entrance.

(End of this chapter)