Learn how to make a glass spreader and aseptically spread an aliquot of bacteria evenly onto the surface of an agar plate.
Жүктеу.....
Пікірлер: 24
@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
9 ай бұрын
It was e.coli????
@Mayanfull3 жыл бұрын
Thanks!! I needed a reminder and this was very useful!
@MrWhangdoodles2 ай бұрын
Excellent video.
@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
@farahali4633 жыл бұрын
u r so good, thank u bc of u I'll take a very good score in the exam
@sawairagul2513 жыл бұрын
Well explained 👌🏼
@user-wk2gp3tu8h2 жыл бұрын
Thank you 💯💯
@arunkalaivanan8075 Жыл бұрын
sir, i have doubt, about why there is moisture alone with the bacterial colony in the end pic?
@byronmunashe38272 жыл бұрын
Well explain.👍👍👍👍👍
@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
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.doctoraliakbarrehmat29143 жыл бұрын
Thanks
@vetberrypk3 жыл бұрын
What should be the temperature inside incubator ?
@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
2 жыл бұрын
usually 37C, but that depends on the species of bacteria.
@sushamapawar5842
Жыл бұрын
I also watch your vidios pleas give a way after dmlt diploma in medical lab tech. Need your guidance sir
@sushamapawar5842
Жыл бұрын
I also watch your vidios pleas give a way after dmlt diploma in medical lab tech. Need your guidance sir
@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
Жыл бұрын
This method covered the whole plate so that's how it grew. This method isn't for counting colonies.
@fukyoutubestupidfuckinghandles
Жыл бұрын
streak plate method might be better but ive just started so there's probably a better method i dont know
@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.
Пікірлер: 24
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
9 ай бұрын
It was e.coli????
Thanks!! I needed a reminder and this was very useful!
Excellent video.
thank you s🇮🇶Thank you, sir. I am from Iraq, and this lesson we have is in biology Thank you very much
u r so good, thank u bc of u I'll take a very good score in the exam
Well explained 👌🏼
Thank you 💯💯
sir, i have doubt, about why there is moisture alone with the bacterial colony in the end pic?
Well explain.👍👍👍👍👍
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
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.
Thanks
What should be the temperature inside incubator ?
@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
2 жыл бұрын
usually 37C, but that depends on the species of bacteria.
@sushamapawar5842
Жыл бұрын
I also watch your vidios pleas give a way after dmlt diploma in medical lab tech. Need your guidance sir
@sushamapawar5842
Жыл бұрын
I also watch your vidios pleas give a way after dmlt diploma in medical lab tech. Need your guidance sir
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
Жыл бұрын
This method covered the whole plate so that's how it grew. This method isn't for counting colonies.
@fukyoutubestupidfuckinghandles
Жыл бұрын
streak plate method might be better but ive just started so there's probably a better method i dont know
@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.
muito bom, perfeito 👍
Oo😂❤❤o❤oo❤❤❤o❤o❤ oki iiooi❤❤❤k😊kk