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Microbiology: The spread plate technique

Learn how to make a glass spreader and aseptically spread an aliquot of bacteria evenly onto the surface of an agar plate.

Пікірлер: 24

  • @MrMRbarati
    @MrMRbarati10 ай бұрын

    Thanks a lot David. I am planning to do this experiment in our lab for the first time. Your demonstration made me feel confident. Cheers

  • @zarinhaidernodi9622

    @zarinhaidernodi9622

    9 ай бұрын

    It was e.coli????

  • @Mayanfull
    @Mayanfull3 жыл бұрын

    Thanks!! I needed a reminder and this was very useful!

  • @MrWhangdoodles
    @MrWhangdoodles2 ай бұрын

    Excellent video.

  • @alisaleh1987
    @alisaleh19872 жыл бұрын

    thank you s🇮🇶Thank you, sir. I am from Iraq, and this lesson we have is in biology Thank you very much

  • @farahali463
    @farahali4633 жыл бұрын

    u r so good, thank u bc of u I'll take a very good score in the exam

  • @sawairagul251
    @sawairagul2513 жыл бұрын

    Well explained 👌🏼

  • @user-wk2gp3tu8h
    @user-wk2gp3tu8h2 жыл бұрын

    Thank you 💯💯

  • @arunkalaivanan8075
    @arunkalaivanan8075 Жыл бұрын

    sir, i have doubt, about why there is moisture alone with the bacterial colony in the end pic?

  • @byronmunashe3827
    @byronmunashe38272 жыл бұрын

    Well explain.👍👍👍👍👍

  • @lauryngrcic6237
    @lauryngrcic62372 жыл бұрын

    What about the very small amount of inoculum that is inevitably left on the spreader tool? Doesn't that loss of volume affect your CFU calculation if the true volume isn't delivered to the plate? Why doesn't the loss of volume matter?

  • @davecummings6328

    @davecummings6328

    2 жыл бұрын

    Hi Lauryn. You could try to calculate how much is lost based on surface area of the spreader and surface tension of the broth. But my guess is that it's a few uL and the change in colony count is probably well within the error of the technique anyway. All that is to say that I don't think it would impact your results significantly.

  • @vet.doctoraliakbarrehmat2914
    @vet.doctoraliakbarrehmat29143 жыл бұрын

    Thanks

  • @vetberrypk
    @vetberrypk3 жыл бұрын

    What should be the temperature inside incubator ?

  • @josephgaleno5098

    @josephgaleno5098

    3 жыл бұрын

    Little late but typically E.coli on petridish can grow at 35c. At this temperature, you should be able to see growth within 24 hours.

  • @davecummings6328

    @davecummings6328

    2 жыл бұрын

    usually 37C, but that depends on the species of bacteria.

  • @sushamapawar5842

    @sushamapawar5842

    Жыл бұрын

    I also watch your vidios pleas give a way after dmlt diploma in medical lab tech. Need your guidance sir

  • @sushamapawar5842

    @sushamapawar5842

    Жыл бұрын

    I also watch your vidios pleas give a way after dmlt diploma in medical lab tech. Need your guidance sir

  • @sarekaya4815
    @sarekaya4815 Жыл бұрын

    I tried this method, but the bacteria did not grow as colonies, they grew in the whole plate and I could not count the colonies. What is the reason? thanks

  • @fukyoutubestupidfuckinghandles

    @fukyoutubestupidfuckinghandles

    Жыл бұрын

    This method covered the whole plate so that's how it grew. This method isn't for counting colonies.

  • @fukyoutubestupidfuckinghandles

    @fukyoutubestupidfuckinghandles

    Жыл бұрын

    streak plate method might be better but ive just started so there's probably a better method i dont know

  • @ashlykraphy9933

    @ashlykraphy9933

    Жыл бұрын

    Sare kaya, You probably need to dilute the sample more so that you get it in countable range which is 20-200 for spread plating technique.

  • @haroldosoares6531
    @haroldosoares65312 жыл бұрын

    muito bom, perfeito 👍

  • @pabasarasamarawickrama8404
    @pabasarasamarawickrama8404 Жыл бұрын

    Oo😂❤❤o❤oo❤❤❤o❤o❤ oki iiooi❤❤❤k😊kk