69novels Chapter 291
Chapter 291
"Old Immortal, why are you always energetic every time I see you, whether it's morning or afternoon?
It seems that you look more energetic than young people."
Su Chen came to Sun Simiao's 'research room', only to see Sun Simiao concentrating and squinting his eyes, carefully observing the glass tubes in front of him.
The liquid in the glass tube showed a light green color, which was the culture solution of Penicillium species extracted seven days ago.
After seven days of cultivation, it should now be called: penicillin solution.
The solution in the glass tube has been standing for seven days.
Today is the third verification, whether the penicillin extraction is successful or not.
Sun Simiao's previous two extractions failed, and the success mark on the instruction manual did not appear after the extraction.
If penicillin is extracted successfully, the most intuitive manifestation is:
A circle will appear around the solution.
"Hahaha, young man, you are joking. How can an old Taoist over eighty years old compare with young people?
When I first met you, I felt that you were full of pure yang energy, as the saying goes, if you have no desire, you will be strong.
I believe you will not have any lustful desires!"
Sun Simiao teased Su Chen in return.
"Well, old immortal, let's talk about this penicillin." Su Chen's old face blushed slightly.
It's no wonder that Sun Simiao said this.
In the past, there were many men who married and had children at the age of sixteen.
Who can believe that Su Chen is still an old fledgling?
"Young friend, please go forward and take a look. This time it can't be considered a success, nor can it be considered a failure.
There are circles on the surface of the solution, but not many.
The old Taoist thought carefully and found that the problem is most likely to be with the thing called 'cotton'. The old Taoist has never heard of this thing.
The last filtration is as the book says: This cotton filters charcoal powder.
The old Taoist does not know what cotton is, so he uses multiple layers of cotton and linen instead.
Perhaps it is because of this that the filtration is incomplete, resulting in residual impurities and impure extraction."
Sun Simiao carefully analyzed the experimental process. Only the cotton filtered the charcoal powder that absorbed the culture solution, and this step was a little biased.
Su Chen understood that it was his own carelessness.
He also read the ancient method of extracting penicillin in full, and Su Chen only thought that cotton was a common thing.
Ignoring that there is no cotton in the Tang Dynasty now.
Whether it is silk or fine cotton and linen, the filtering effect is not as good as cotton balls.
It is very likely that the reason for the failure of the extraction is this.
"Old Immortal, I was careless. Cotton is not planted in the Tang Dynasty yet.
Cotton is white flounder, which is only found in the Western Regions now.
However, I accidentally got some seeds and can plant some next year."
Su Chen explained with a little apology.
"I see, you don't have to worry about this matter, I will think about other alternatives carefully."
Sun Simiao is not afraid of failure, as long as he finds the problem and tries a few more times.
"Okay, then I'll trouble you to take care of it." Su Chen bowed and smiled.
"Hahaha, I'm never tired of refining medicine!" Sun Simiao laughed heartily.
"Then I won't bother you, old immortal, you can study it slowly!"
Su Chen bowed again and said goodbye to Sun Simiao.
"Please do as you like!" Sun Simiao stretched out his hand and sent Su Chen to the door.
...
After leaving Sun Simiao's courtyard, Su Chen murmured:
'This matter, cotton! I don't know what the caravans are like now.
It's been more than two months, and there are caravans formed by aristocratic families. I don't know if the glass has been sold.
It's really inconvenient without a phone! '
Su Chen returned to his residence slowly.
"Wang Xi, didn't Li Ke and Xue Rengui send a message back?"
When he walked to the living room, he happened to meet the housekeeper Wang Xi.
"My Lord, no one has sent a message back to the manor during this period of time."
The last time Li Ke sent someone back to deliver a message, he and Xue Rengui had crossed the Yellow River and entered Shanxi.
It has been ten days since today.
In their forward route, the only bandit in Chang'an had already voluntarily joined the road construction team.
The second-in-command of the Lotus Mountain bandits is called Tu Jiu.
I heard that Tu Jiu has become a foreman now, and his wages have increased a little.
At that time, Su Chen proposed to Li Shimin that Li Ke and Xue Rengui spread along the road construction route. Suppress bandits all the way to Shanxi, and distribute household registration books and ID cards by the way.
Li Shimin answered without saying anything.
Li Ke and Xue Rengui led 500 people from Chang'an. Li Shimin gave each of them a token.
Wherever they went along the way, they could call up any official and soldiers from the government by showing the token.
There were also two officials from the Ministry of Households accompanying them, mainly to assist the local county magistrate in issuing household registers and identity cards.
Li Shimin originally intended to assign Li Ke and Xue Rengui, each with 2,000 people.
However, Li Ke declined politely. Whether they could meet bandits was still a question. Too many people would be a waste. Five hundred people would be enough.
Those five hundred people were not ordinary soldiers, but were drawn from the Xuanjia Army.
Among themThere are two other deputy generals in the Xuanjia Army, who have rich experience in marching and fighting.
"Okay, I understand."
Su Chen nodded. He was not worried about the safety of Xue Rengui and Li Ke.
Even if they can't beat the other party, they will definitely be able to escape with their lives.
There are not many people who can beat them alone.
"Okay, Lord!" Wang Xi bowed and continued to do his own work.
...
When he is free, Su Chen usually stays in the study.
"Today is Friday, let's go to Wude Teahouse on the weekend."
The teahouse opened by Li Yuan is called Wude Teahouse. He named it himself. There are private rooms on the upper and lower floors.
Just like Zhenguan Book House, Li Yuan also used his reign as a signboard.
Li Yuan is the shopkeeper himself. There are ten "guys" in the teahouse, all of whom are very skilled.
There are also two deputy shopkeepers, who are eunuchs who have followed Li Yuan for many years.
Teahouses have many business items, and drinking tea is the most basic consumption item.
You can play chess, play Landlord and read newspapers inside.
The tea fee is 20 wen per person, and each table is given three small plates of peanuts, sunflower seeds and popcorn.
Unlimited tea refills are free, and additional tea leaves are charged.
The tea sold by other teahouses in Chang'an City is added with various high-quality spices, and the charge for a cup of tea is only two wen.
Li Yuan Teahouse charges 20 wen per person, which can be regarded as high consumption.
Today is the fifth day of opening. It is said that the total turnover in the first three days is as high as more than two guan.
This profit is still a little different from what Su Chen said at the beginning, that he could earn tens of thousands of guan a month.
This made Li Yuan, who was doing business for the first time, smile happily. This was the money he earned with his own ability.
Li Shimin invested more than 300 guan at the beginning, not counting other daily operating costs.
The first batch of customers who entered the teahouse had only one comment:
'This kind of clear soup, charging 20 wen? ’
But after drinking the tea, the customers thought it was worth the money. Especially the free peanuts and melon seed popcorn.
“Haha, I wonder how the old man’s teahouse business is now?”
Su Chen smiled slightly and said to himself.
…