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Chapter 1185 Life-Saving Artifact

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    There are already several people busy in the germ laboratory.

    Several rows of wooden shelves are filled with a dazzling array of glassware, and several microscopes are placed on the long table.  The sink, operating table, various knives and strange-shaped glassware looked very strange.

    Although it was April, Ma Yilong couldn't help but shudder.

    Pang Xian stepped forward and reported to Li Shizhen and Li Lunming, who were studying under the microscope, before they looked up at Zhao Hao.

    "You're here just in time, look." Li Shizhen greeted Zhao Hao excitedly.

    "What did you find?" Zhao Hao walked over with interest, stood between Li Wan and Li Wan, and pointed one eye at the eyepiece of the microscope.

    I saw a thin layer of solid culture medium spread in the glass petri dish This is made from marine Gelidium cauliflower to make transparent agar, and then add a little nutritious gravy, which can not only cultivate bacterial growth, but also facilitate observation.  This method is still being used four hundred years later.  In this time and space, it is naturally regarded as one of Mr. Zhao's many scientific inventions that are not worth mentioning.

    Of course the culture medium is not the focus, the focus is the small round dots on the culture medium.

    "What kind of cocci is this?" Zhao Hao asked casually.

    Li Lunming answered from the side: "We have found this kind of cocci in the purulent wounds of different patients. According to the method taught by the master, after staining with iodine, it turns golden yellow when observed under an oil microscope. It should be what the master said  of Staphylococcus aureus.¡±

    "Oh." Zhao Hao nodded.  People in later generations who have a little common sense will know that this is the most common bacteria that can cause various types of infections and is zoonotic.  It is the biggest threat after a person is injured.

    But for the doctors of the Ming Dynasty, this was an incredible discovery.

    But obviously, this is not what excites Er Li, because this plate Oh no, they did not dye this cocci, the purpose is naturally to avoid contaminating the test results!

    "Master, look below." Seeing his eyes wide open, Er Li jumped up and down anxiously.  "So obviously you can't see?!"

    Under the guidance of the two men, Zhao Hao discovered that there was a pale white circular area in the culture medium full of cocci breeding colonies. Because it was too obvious, he ignored it.

    "Is this the cocci melting?" Zhao Hao finally understood and immediately became interested: "How did you do it?"

    There are too many things that can kill yellow cocci, such as alcohol and iodine, so it is not surprising that it can be done. The key is how to do it.

    "Use this!" Li Shizhen picked up a speckled orange.

    "Damn it, you have isolated penicillin!" Zhao Hao suddenly became excited.  God, I have finally waited for this day

    Why is Mr. Zhao always so cautious?  He never drinks boiled water on weekdays. He scalds fruits and vegetables in boiling water before eating them. He refuses strenuous activities and does not dare to do any dangerous actions.  It's really because I'm afraid of bacterial infection.

    In this era of lack of medical treatment and medicine, a small opening or eating bad food will lead to bacterial infection and death.

    Mr. Zhao was so worried that his forehead was broken last time at sea

    So one of his main purposes in establishing Jiangnan Hospital was to do everything possible to improve the medical level of Ming Dynasty and increase his chances of surviving when an injury strikes.

    As a life-saving artifact for time travel, penicillin is naturally the top priority of research and development.

    In his previous life, he had watched the Japanese TV series "Benevolent Doctor", and he still vividly remembered the plot of a southern doctor traveling through ancient times to create penicillin.  At that time, he also knew that there were three medical doctors who provided medical guidance for the screenwriters. That method should be reliable

    When Jiangnan Hospital was first established, Zhao Hao told three miracle doctors the method of extracting penicillin by southern doctors.  Basically, the oranges are sterilized first and then the culture medium is made.  Then Penicillium is inoculated from the moldy oranges and continuously cultured and multiplied.

    After breeding to a certain number, use a funnel to filter the culture solution, add rapeseed oil to the filtered liquid, and stir evenly in the bucket to make the liquid layered - oil-soluble substances in the upper layer, insoluble substances in the middle, and water-soluble substances in the lower layer.

    Penicillin is a water-soluble substance.  So by installing a faucet at the bottom of the bucket, you can get the penicillin dissolved in the water.

    Next, pour it into activated carbon sterilized with boiling water and stir.  Then filter with distilled water to wash away the debris.  Then filter it with acidic water mixed with white vinegar. Because penicillin is weakly acidic, it will not dissolve in acidic water. In this way, alkaline impurities are removed.

    Finally, filter with baking soda and water to obtain a high-purity penicillin solution.

    It sounds very simple, and Mr. Zhao also thinks it is not difficult, so he says it is not difficult.??: "Allicin extraction was successful."

    "Oh no, I didn't tell you earlier! If you want to show off with me, please suppress it first" Mr. Zhao immediately beamed with smiles.

    Compared with the difficult penicillin, extracting allicin is much simpler.  Mash the garlic and let it sit for an hour, then soak it in high-concentration alcohol for extraction, and you can get a low-concentration alcohol solution of allicin.  Or it can be obtained by steam distillation. The allicin solution has a killing effect on a variety of cocci and bacilli, and also has an inhibitory effect on fungi. It can be regarded as a low-profile multi-purpose life-saving artifact

    "Uh, sorry, interrupt" Seeing that the three of them were about to discuss allicin with great interest, Ma Yilong, who had been waiting over there for a long time, finally couldn't help but asked: "This penicillin, and  Can allicin cure silkworm disease?"

    "Uh" The three of them were so excited that they remembered that there was another person here.

    "Sorry, I don't know." Li Shizhen shook his head honestly and said: "It's just that I haven't caught him for a long time. Let's report the progress of the work to him." (Remember the website address: www.hlnovel.com
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