Simply peel the potatoes, chop them into small pieces, weigh out 200 grams and put them in 1000 ml of water, then cook for half an hour (use low heat after boiling).
After that, filter the soup with gauze and add some cold boiled water to make the soup back to 1000 ml.
Finally, add 20 grams of white sugar to the 1000 ml potato soup to make the culture medium.
Then take the orange peel and wait for it to mold in a cool place.
Then inoculate the culture medium with orange peel and culture it for another five days to obtain mature Penicillium.
Crush the culture medium, centrifuge and obtain the supernatant to get crude penicillin.
The production of Penicillium has been completed, and now her laboratory is full of germs. She is really afraid that her children and other people in the family will come in and be contaminated by these bacteria.
So she locked the door when entering and leaving the laboratory, and specially prepared several sets of clothes for doing experiments.
She planned to move the laboratory away as soon as the experiment was successful.
After waiting for a while, and once she has collected enough crude penicillin powder, she can start purifying penicillin.
For her who had studied mathematics, it was not a difficult task.
Qian Chunhua plans to use the precipitation method.
This would make it easier to produce penicillin in large quantities.
Qian Chunhua was busy recording various data on paper, including the temperature of the environment, the number of strains added, the volume of the culture medium...
The day flies by.
On that day, when Lu Chen went to Bailu Academy to pick up the children after school, Lu Wu did not have to follow them back to the mansion. He directly got on the carriage that picked up Lu Heng and went to the Duke's Mansion with Lu Heng.
The space in the carriage was not large. Lu Heng and Lu Wu sat facing each other silently, one on each side of the carriage.
Lu Wu, who grew up without any love or care, always cares a lot about what others think of him.
From the moment he boarded the carriage, he felt the hostility of 峔夌恒 towards him, so he, who had originally intended to greet 倲夌恒, suddenly sat there in a daze, not daring to speak actively.
Heng glanced at him and turned his head away. Although he didn't like Lu Wu in his heart, he would not take the initiative to provoke this boy who caught his grandfather's eye.
The carriage arrived at the Duke's Mansion.
Dinner has been prepared at home, and we can eat as soon as the two children come home from school.
Because Lu Wu was in poor health, old lady Lu also wanted to nourish her grandson, so she stewed a chicken for dinner today.
Zhuheng held the bowl and drank the chicken soup in small sips, then ate a chicken leg that Zuqi had picked for him.
Another chicken leg was put into Lu Wu's bowl.
Lu Wu was flattered, holding the bowl, he couldn't believe it. He actually had the chance to eat chicken legs.
When he was in the mountains, he would feed the chicken legs he got from hunting to his fellow apprentices.
The tradition of the Wuying Sect is that the older ones give way to the younger ones.
So Lu Wu didn't have the chance to eat the chicken leg.
After moving to the capital and living in Aunt Qian's house, he also retained this habit.
The chicken legs at home were left for the younger children to eat. Only occasionally did Aunt Qian feel that it was unfair and would ask the kitchen to cook a few more chickens, and then give each of them a small piece of chicken leg.
But such opportunities don’t come often. After all, due to natural disasters, there are very few supplies outside.
Looking at the chicken leg in the bowl, Lu Wu suppressed his gratitude, thanked the old lady, and then began to eat with relish.
"You are too thin, kid. Eat more." Old Madam said to Lu Wu with a smile.
Lu Wu nodded and ate without even raising his head.
Because of his martial arts training, he has a big appetite. Not only him, but everyone in their Shadowless Sect has a big appetite.
They can eat at least three bowls of rice for every meal, but what can they do? They won’t gain weight after eating.
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