Chapter 56

Back in the yard, ran Yan sees Xing Niang Hu sitting in the corridor cutting cloth, looking glum, and sighing for a while.

When Xing Niang saw ran Yan come back, she hastened to come up, took over the power fence, looked at ran Yan's face, and said with heartache, "is your wife exhausted? When I return to the main house in a few days, it is estimated that there will be fewer people looking for you. "

"Well, Xing Niang, help me make bath soup. I want to take a bath." Ran Yan said.

Xing Niang said with a smile, "it's time to take a bath to get rid of the disease."

Ran Yan's body just recovered for a short time, and it was already empty. On this day, two patients were diagnosed and two corpses were dissected. It was really too much to eat.

Soaking in the warm water, ran Yan was a little sleepy.

"Empress, empress Xing ordered the maids and maids to serve you in the bath." There was a clear sound outside.

Ran Yan is not used to being watched by others taking a bath, but this time it is really too sleepy. You can ask the maid to help wash the damned long hair and say, "come in."

The visitor is Xiaoman, who cleans up for ran Yan in the morning. She carries a small bath bucket with a wooden cover on it. There is heat in the gap, and a smell of flowers is escaping in the air.

"What is it?" Ran Yan asked.

Xiaoman knows that ran Yan is not as frightening as she looks, so she smiles and opens the dimples on her cheek. "Seeing that the gold and silver flowers in the yard are blooming well, I take some to bathe my wife. It's very good to bathe with honeysuckle in summer."

Ran Yan nodded, but he thought to Xiao song that fanchun was drowned in the bath, but Whose bathtub did she drown in?

Xiaoman saw ran Yan didn't speak, so he bravely stepped forward and said, "lady, will you wash your hair?"

"Good." Ran Yan responded.

Xiaoman pulled a high stool from the corner of the wall, put it beside the bath barrel, and then put the small bath bucket up.

Ran Yan raises water to the body while looking at Xiaoman's action. His pupil shrinks violently - high stool! Barrel!

The high stool in the bath room is a bit rough, but it is very similar to the stool that fell to the ground under the feet on the day when the late green was suspended. People in the Tang Dynasty were still sitting in their seats, and the desks were very low. There were only hutbeds with legs similar to chairs and benches, and the Hu beds were far from so high.

Also, this end

"Xiaoman, you stand opposite me." Ran Yan said slowly.

Xiaoman is pouring petal bath soup into the bath bucket. Hearing that ran Yan remembers her name, he responds happily. He puts the remaining half of the water on the high stool beside the bath bucket and stands opposite to him according to his words.

Ran Yan stretched out his hand from the tub, touched the bucket, and poured all the water into the bucket. Then he began to study the barrel body and the lid of the barrel. From time to time, he took these two things and stroked at Xiaoman's head. He felt a shiver in his heart for fear that she would really throw something on his head.

The mouth of this barrel is wide and narrow, but it is very heavy. No matter the bottom or the mouth hits people's head, it will not be just swollen. At least the skin has to be broken. The wound on fanchun's head is curved, which should be caused by the lid of the bucket.

The size of the bucket is different, and the radian is also different. Maybe the murderer smashed fanchun noodles with the cover of the bucket in a hurry, and then immediately found that she was not dead, nor fainted

Ran Yan stood up from the bucket and held Xiaoman's neck.

Small full eyes staring at ran Yan's concave and convex body, Lanyan jade like skin with a Ying Ying Ying Shui Guang, standing in the smoke curl, it is enchanting.

She was in a trance, but ran Yan grabbed her neck and pushed down the edge of the bath bucket. Her face was almost close to the water. She cried out in a hurry, "madam, spare me! Spare your life, lady

Ran Yan regained consciousness and found himself standing naked in the tub. He coughed awkwardly. He sat back in the water and explained to the frightened man, "I It's just a little thought. "

Hearing such an explanation, Xiaoman doesn't feel relieved at all. He thinks of something. At one time, he holds the lid of the bucket to show her head, and then he wants to push her into the water?

But The lady's body is really impressive! Small full of water spirit big eye toward the body which is looming in the water, whispered, "lady, maid will wash your hair."

Ran Yan nodded, and now he figured out some things, so he didn't have to toss about any more. Xiaoman was allowed to help her wash her black hair which was longer than her waist and buttocks.

After the bath, ran Yan immediately went back to the room to grind, and drew the shape of the bath bucket and the shape of the high stool. Then he wrote a letter to Yang Yong, who was guarding the team on Chuang Tzu, and asked him to send someone to Liu Sishi immediately.

After finishing all this, ran Yan really relaxed. After having dinner, he went to accompany the evening green for a while, then went back to his bedroom to have a rest.

Xu was tired and cruel. Although there were many pictures in this night's dream, they didn't connect to each other. On the contrary, it was the best sleep in the past six or seven years.

In the next few days, it was rainy and rainy, and it was very inconvenient to travel. People who wanted to see ran Yan sent letters saying that they did not dare to bother her to come to the door in person, but would take the patients to the door on the appointed date.So these days, ran Yan was at leisure. After seeing the patients every day, she went to Wu Xiuhe to listen to him talk about medicine. Since ran Yan had finished the meal, Wu Xiuhe was obviously more attentive and hardworking than before. From time to time, she hinted that she should make a meal to reward him for his hard work.

Five days later, the Penicillium in the culture medium was almost ready to extract penicillin.

Ran Yan poured the liquid from 30 Petri dishes into a special wooden bucket prepared in advance, then poured vegetable oil into the barrel, mixed and stirred.

Penicillium water contains fat soluble substances, which can be dissolved and separated by oil. After mixing evenly, let stand and wait.

Finally, the substance in the barrel will be separated into three layers. The first layer is fat soluble substance dissolved by oil, and the second layer is insoluble substance which is insoluble in water and oil. Because penicillin is water-soluble substance, penicillin is contained in the bottom water.

The bottom of the special wooden barrel is made into a wine barrel. There is a wooden plug. After pulling the plug, the water at the bottom slowly flows out. Ran Yan connects it to a porcelain bowl sterilized with wine and distilled water.

After filtering some of the large impurities, it is poured into the jar, which contains sterilized crushed carbon. After stirring, penicillin will be absorbed by carbon.

Xing Niang, who is helping at the side, looks at ran Yan with a blank face. She doesn't understand what the difference will be in a bucket of mouldy and seven days' water after being oiled and carbonized?

In fact, these steps in today's operation are not difficult at all. What is difficult is the preparation of these materials. The wine and distilled water used for disinfection make ran Yan busy every day. In particular, the collection of distilled water is not difficult, but the amount is small. It takes a lot of time to collect a bottle. When disinfecting, most of the bottles are poured out at once Pour ran Yan's blood and sweat!

Besides, sodium carbonate for filtration, commonly known as alkali and soda, is made from salt, sulfuric acid, coal and limestone. Fortunately, ran Yan has been nurtured by the chemist's father for several years. Otherwise, he would only stare at him if he knew how to extract penicillin.

Ran Yan stirred the carbon and water-soluble material evenly, and then purified it three times. Add distilled water, baking soda water and weak acid water (vinegar + water) respectively.

Add distilled water to filter for the first time. The water poured out is not penicillin solution and can be discarded.

The second time add weak acid water, filtered water is still thrown away.

The third step is to add sodium bicarbonate. The filtrated solution is the real penicillin solution.

Ran Yan looked at the four bottles containing penicillin solution. She was always calm and her eyes were slightly red - it was really not easy! These days, she is tired of distilled water, and her back aches.

Ran Yan didn't think much about seeing syphilis on Zixu's body, because as a psychological modern person and a modern medical person, he subconsciously thought that the penicillin extraction process was relatively simple, but only when he really did it did he knew that there was no soda in the Tang Dynasty, no distilled water, fine carbon had to be ground slowly, and the medium solution had to be boiled with taro and rice ……

How could Tang Dynasty have such a difficult disease! Ran Yan sighed in her heart that if she could change it, she would rather dissect two corpses every day, and would never be willing to make penicillin!

"Lady, is this immortal water?" Xing Niang asked in a low voice.

Ran Yan pauses for a moment and then remembers that he had no choice but to nod his head when he said that he had been instructed in his dream.

Ran Yan poured two drops into another dish, which contained Staphylococcus aureus. This strain is better to get. Ran Yan found a little bit a few days ago and put it in the culture medium to promote its growth. Today, there is a full piece. With the dripping of penicillin solution, Staphylococcus aureus gradually died out, and a piece of it was quickly emptied.

Validation is useful. Ran Yan breathes a sigh of relief completely. If the last step is proved to be invalid after all the efforts, she will cry. Fortunately, God treats her not unkindly.

Ran Yan carefully put away these bottles of penicillin, and finally put down a big stone in his heart. Feeling quite relaxed, he decided to make a meal for the cheap master.

Wu Xiu and his neck lengthened for a long time. Ran Yan had just finished his first dish, and ran Yunsheng came. He was so angry that his old man blew his beard and glared at his eyes. His hard-earned immortality disintegrated in an instant and played tricks on him.

Ran Yan had no choice but to make his favorite Dongpo meat, one meat and one vegetable, which comforted his broken heart.

Ran Yunsheng laughed Yan Yan like a flower, "ah Yan, you master is really interesting."

Ran Yan lip corner slightly curved, did not receive this topic, turned to ask, "are you busy?"

"Did you forget?" Ran Yunsheng stopped his pace and said angrily, "today is Qiqiao Festival on Chinese Valentine's Day! As a daughter, how can you forget all about it? "

"Oh." Ran Yan remembers that Xing Niang has been busy talking since the early morning.

"Hurry up, go and have a shower. We're going to Pingjiang River tonight. Uncle let me take you too!" Ran Yunsheng urged urgently. (to be continued. If you like this work, you are welcome to start（ qidian.com ）Your support is my biggest motivation to vote for recommendation and monthly tickets. )www.novelhall.com , the fastest update of the webnovel!