thefictionvixens Chapter 267
Chapter 267
Su Chen asked Wang Ziyu to give the copper coins to the housekeeper Wang Xi. If he needed money in the future, he could apply to Wang Xi.
When Su Chen returned to the study, Princess Changle and Su Jin had already left.
"Huh? Where did they go?"
Su Chen was free, so he took out the disease pathology analysis that he had just been rewarded from the system space.
After flipping through a few pages, he couldn't read it anymore. It was not suitable for his major.
He took a look at the human anatomy diagram and wanted to put it in the study, but after thinking it over again, he gave up.
He was worried that it would scare people.
"Penicillin? It's a good thing. It's not an exaggeration to call it a miracle drug."
Su Chen carefully read the penicillin extraction guide.
"Grapes, cantaloupe, and apples are not available in the Tang Dynasty, but pears, watermelons, and orange buns are available."
There are more than a dozen common substances that can produce penicillium. Su Chen has only seen five of them in the Tang Dynasty. As long as there are enough of them, penicillium should be able to be cultivated.
There are only three steps to extract penicillin by the ancient method. First, obtain penicillium.
Then culture the strain with culture medium, which is very simple to make.
Grind corn into powder, boil it into juice, and put the extracted Penicillium in it for about seven days.
Then add three times the amount of rapeseed oil as the culture medium, and stir it continuously to separate it into three layers.
The top layer is the oil layer of fat-soluble substances, the middle layer is insoluble substances, and the bottom layer is water-soluble substances.
Pour out the two layers of liquid on the top and keep only the bottom layer.
Then use charcoal powder to absorb the bottom layer clean, rinse the charcoal powder with distilled water, and then add acidic water and alkaline water.
The final liquid is penicillin solution.
Acidic water can be fermented with rice water and added with an appropriate amount of clean water, and alkaline water is even simpler.
Universal wood ash can be used.
Put the penicillin solution into a glass container and seal it for three days.
If a circle is formed around the penicillin solution after three days, it proves that the penicillin extraction is successful.
Otherwise, it can only be redone.
"There is only a fine line between Penicillium and Aspergillus flavus. If we make a mistake, it will be a big deal.
Let someone with brains do it!"
It seems simple, but it is not easy to do it. It requires multiple experiments.
Even if penicillin is extracted, it is impossible to prove its effectiveness 100% with the current means.
In addition, penicillin must be tested before it is used on people.
An allergic reaction can be fatal.
Therefore, penicillin should not be used unless it is absolutely necessary.
It is better to extract allicin, which is simpler and more effective.
Su Chen shook his head and gave up his plan to try to extract penicillin.
Then he looked at the medical equipment.
Mainly some commonly used equipment for small surgical operations, as well as needles and syringes.
Suddenly, Su Chen remembered that he still had 790 points.
"I almost forgot to exchange a watch for Jin'er."
Without saying a word, he spent 150 points to exchange a watch.
Shower gel, shampoo, toothpaste and toothbrush were also arranged, and there were still 410 points left.
Su Chen nodded with satisfaction, and he didn't feel sorry for spending the points.
The more he spent, the faster the mall would upgrade.
"Continue to draw the map, and the watch will be sent after dinner." Su Chen looked at the unfinished map on the desk and murmured.
...
The night came as expected.
Su Chen was used to taking a bath after dinner.
"My Lord, the weather is getting colder. I have added a little hot water to the bucket. Do you think the water temperature is appropriate?"
Su Chen reached his hand into the bucket and tested the temperature.
The water temperature was just right.
"You are really thoughtful. I didn't even think of this. Thank you."
"What's your name!" Su Chen asked with a smile.
The servant was moved and bowed, and replied:
"My Lord, this is my duty, and I don't deserve your thanks.
My humble name is Luo Youfu."
Luo Youfu was probably in his early twenties, and no one had called him by his name for nearly ten years.
He was a slave, and had no social status. He was the master's personal property, and could be traded and sold.
No one cared about the names of people like them. They worked as servants in rich families without wages, and only wanted food and shelter.
"Okay, I'll remember you. How much is your monthly salary now?"
"My Lord, I am lucky to be able to come to the manor to serve you.
I dare not ask for monthly salary."
Luo Youfu hurriedly saluted, trembling.
What he said was true. Before, he was a slave and servant in other places. Not only did the master's face look bad, but sometimes he was scolded or beaten.
No one treated them as human beings.
How could they be treated as well as in the manor? No one looked down on them, and they had the same food and lodging as the guards.
The manor provided food and lodging, and even if they were paid, they could not spend it.
Slaves had no chance to marry and start a family, and money was not important to them.It is dispensable to them.
Unless good fortune comes and their slavery can be cancelled.
"Why no wages?" Su Chen asked doubtfully.
"My Lord, I am a slave, serving the master only for food and clothing."
"My Lord, the water is getting cold, please take a bath."
"I will wait outside the door."
Luo Youfu bowed and hurriedly left the backyard.
If he continued, he was worried about losing this good job.
Su Chen was thinking on the spot.
"In this evil feudal society, a young man who works so hard does not get paid."
"This is not good!"
Su Chen immediately made a decision in his heart. He could not control others now, but all the servants in the manor.
He must pay wages.
"Slave status? Ask Li Tai what's going on later."
Without thinking any more, he took off his clothes and started to take a bath.
"We need to build a bathroom with a shower as soon as possible. It's really uncomfortable to take a shower like this when it's cold.
How do we solve the water pipe problem? And the flush toilet."
...
After taking a quick shower and changing his clothes, Su Chen asked the servant to find Li Tai.
"What's the matter?"
This was the first time Su Chen came to him after dark. Li Tai guessed that the matter might be urgent.
"I want to ask you why those servants are all slaves." Su Chen motioned Li Tai to sit down and talk.
"That's wrong. Not all servants are slaves.
Many people voluntarily become slaves because they have no land to farm and cannot make a living. Such people are not slaves."
Su Chen continued to ask: "Why do some people become slaves?"
After thinking for a moment, Li Tai said:
"The main source of slaves is prisoners of war, or they are sentenced to slavery by the government because of crimes."
Su Chen nodded, as if he understood.
At first, Su Chen thought that slaves were because the people were poor and voluntarily became slaves.
In this way, people who have become slaves are almost the same as laborers.
Originally, Su Chen had planned to slowly persuade Li Shimin to abolish slavery, as the population of the Tang Dynasty was pitifully small.
Most of those slaves and maids could not get married, and how many such people were there in the entire Tang Dynasty?
"Can people who have become slaves marry and have children?"
Li Tai shook his head slowly, "Male slaves have no possibility of getting married and starting a family. A small number of slave women may be recruited as concubines by their masters."
Su Chen pondered for a moment. Slavery cannot be changed now, and there are huge interests involved.
He can only temporarily pay wages to the servants of the manor.
It's like a hiring system.
"Okay, I understand. Are there any people registering for school today?"
"There are thirty-six people." Li Tai replied.
...