thanks a lot.. so badly needed this to recover my micobiological testing knowladge...
@MicroChemsExperiments7 ай бұрын
Thank you
@ilililililiillli6682 жыл бұрын
Absolutely helpful thank you so much!!
@MicroChemsExperiments2 жыл бұрын
Glad it helped!
@biannekaulf92212 жыл бұрын
Cool. I really understand the video. Thanks for making this!
@MicroChemsExperiments2 жыл бұрын
Thanks
@Patolitte3 жыл бұрын
Informative and comprehensive
@MicroChemsExperiments3 жыл бұрын
Thank you so much. Stay with us.
@sangitasahoo7599 Жыл бұрын
Its really informative. Can you plz make a swab test video
@MicroChemsExperiments Жыл бұрын
Sure. We will make soon
@brianmarv Жыл бұрын
Is this a Most Probable Number (MPN) method or Membrane Filtration Method (MFM)? Can it work for turbid water?
@fatemehhassantabar4842 Жыл бұрын
really useful, thanks
@MicroChemsExperiments Жыл бұрын
Thank you
@malaiyarasujanakiraman7535 Жыл бұрын
thank you so much
@MicroChemsExperiments Жыл бұрын
You're welcome!
@Rajput_ff0016 ай бұрын
How is Peptone salt solution preparation done because in this you have told something else about the formula to make it and in the video of Ecoli you had told something else, please do tell🙁🙁
@zarqaarshad4112 жыл бұрын
Kindly upload protozoa, helminths, campylobacter, staphylococcus video as soon as possible I need this for my research
@MicroChemsExperiments2 жыл бұрын
Noted
@tasyanurafifahsyifafitriya314411 ай бұрын
Can i ask something mam, why VRBL media do not autoclave? and what happen if VRBL media di autoclave? pls answer me mam
@ibrahimmohamed6209Ай бұрын
VRBL media should not be autoclaved due to its specific preparation requirements and the potential negative impact on its selective properties and overall performance in microbiological assays.
@niketadixit97212 ай бұрын
Mam please explain vibrio Cholera ,vibrio monocytogenes
@mohammadhammad58443 жыл бұрын
Pls make a video for: Salmonella Staphylococcus E.coli using tbx media Listeria spore forming bacteria(aerobic , an aerobic) Thank you very much
@MicroChemsExperiments3 жыл бұрын
Okay. We will make
@GolamSaroar-k7p Жыл бұрын
just remarkable !
@MicroChemsExperiments Жыл бұрын
Thanks
@yasminmazur31429 ай бұрын
thank you very much, can you tell me what the minimum dilution required for solids? I see that the liquids are X10, can you do that with solids too?
@MicroChemsExperiments9 ай бұрын
Yes. You can. ×10 dilution is the minimum
@SirajulIslam-vp9gp3 жыл бұрын
Very nice. Thank you....
@MicroChemsExperiments3 жыл бұрын
Thank you too!
@saniketbhosle33909 ай бұрын
Is it ok if we count the colonies manually if there's no colony counting machine. The video is really helpful Thanks....
@MicroChemsExperiments9 ай бұрын
Yes. You can count colonies manually.
@Jinia217443 жыл бұрын
Pls make a video for Thermophillic acidophillic bacteria and Heat resistant mold identification by using k agar ,plate count agar and Pda media for fruit juice.
@MicroChemsExperiments3 жыл бұрын
Ok. we will make
@salonipatil85446 ай бұрын
Whatu have used is durham's tube for gas production ? is it peptone watet??
@MicroChemsExperiments6 ай бұрын
BGLB broth is used along with Durham tube
@InnocentUtondo2 ай бұрын
Can same method be used for alcoholic beverages?
@hajarzakzouk74582 жыл бұрын
thank you so much for the video .. may i ask a question ? .. why did you poure 4 ml medium after solidifying ?
@MicroChemsExperiments Жыл бұрын
This overlay of media is needed to facilitate the growth of bacterial cell on the surface of the first layer of the media
@ramkrishansharma67175 ай бұрын
Sir please make a video of coliform confirmation test
@farheenzahidsiddiquie97666 ай бұрын
there are white colored center dots on pink color colony, are these coliform and to be counted?
@MicroChemsExperiments6 ай бұрын
Yes. Those are also coliform
@rajanpatel32282 ай бұрын
I have pepton not enzymatically digested casein. Will it work?
@MicroChemsExperiments2 ай бұрын
Yes
@hamini13757 ай бұрын
do you have vrba for finger test???for fingers of food factory
@md.shahinsarkar16253 жыл бұрын
Thank you
@MicroChemsExperiments3 жыл бұрын
You are welcome
@nehatiwari2521Ай бұрын
In this calculation dilution factor is 10 but you prepared the dilution only once?
@JitendraKkushawaha9993 жыл бұрын
Please make a video on total plate count..
@MicroChemsExperiments3 жыл бұрын
Noted. We will work on it soon.
@EelasMusic3 жыл бұрын
I have a one question from you... I collected sample from the sewage water,and followed with 3 times serial dilution with bglb broth and incubated for the identification of coliform bacteria.after the production of gas I isolate them into(0.1ml) macconkey agar and did indole test for them for the confirmation.in plates I've got 60 colonies,so the CFU /ml was calculated...6x10^5 CFU /ml ...so,I need to dilute them into three samples.like 10 CFU/ml,100 CFU/ml and 1000 CFU/ml...so can u give me an idea how to do that.... And my second question after diluted them,I need to those cultures to grow inside the nutrient broth for the DNA extraction,so,how can I inoculate them,I mean after getting dilution,we should do the culture again which I mention in 1st question like culture into the agar plates,if I take the one colony from the agar plate define 1 ml?I mean let say we culture the agar plate from the 100cfu/ml sample if I take one colony from them means that colony contain 100cfu?
@MicroChemsExperiments3 жыл бұрын
Eelam Music Production, Its soo tough to explain here to solve your question. But I'm trying.... Situation-1: You got 60 CFU from 0.1 BGLB broth culture ****Ans to the first question: 1. To get 10CFU/ml sample, dilute 1ml BGLB culture (600CFU) into 59ml normal saline. 2. To get 100CFU/ml sample, dilute 1ml BGLB culture (600CFU) into 5ml normal saline. 3. To get 1000CFU/ml sample, you need to use lower dilution in the same way as done for 1 & 2. ****Ans to the second queation: A single colony contains millions of CFU. First dilute 1 colony in 100ml normal saline then culture 0.1ml from the diluted colony on nutrient agar. Count the CFU on nutrient agar plate. Now Calculate and dilute the normal saline as much as you need to find your desired bacterial concentration, on the basis of how much CFU you got on NA plate. If you dont get the expected result by following my guideline then try the bellow procedure: First culture a coliform bacteria in nitrient broth, centrifuge at 4000rpm for 5 min. Discard the upper broth layer, dilute the lower bacterial cell in normal saline, prepare McFarland 1.5 turbidity and match the turbidity of your bacterial cell using a spectrophotometer. Then dilute to desired concentration of bacterial cell as needed. Thank you
@EelasMusic3 жыл бұрын
@@MicroChemsExperiments can I use the distilled water instead of saline for the serial dilution?
@MicroChemsExperiments3 жыл бұрын
@@EelasMusic using diatiiled water for dilution in microbiology is not a good practice. You should use normal saline.
@EelasMusic3 жыл бұрын
In first question,for 1000 CFU/ml I need to put 0.1 ml of bglb into 0.5 ml of saline right,but that volume is not enough for me,so what can I do to increase that volume without changing the value(1000 CFU/ml)
@EelasMusic3 жыл бұрын
In first question,for 1000 CFU/ml I need to put 0.1 ml of bglb into 0.5 ml of saline right,but that volume is not enough for me,so what can I do to increase that volume without changing the value(1000 CFU/ml)
@Ankitsingh-bq9bu2 жыл бұрын
Thank you mam
@MicroChemsExperiments2 жыл бұрын
You are welcome
@uchechukwucynthia8450 Жыл бұрын
Why do you have to use peptone sugar solution for another 1st and 2nd trial instead of using the waste water
@anshulchoudhary72383 жыл бұрын
please make a video for Vibro cholera and Listeria monocytogenes.
@MicroChemsExperiments3 жыл бұрын
Noted. Ok we will make.
@GloryOjimaIsaacАй бұрын
What other media can replace VBRL
@ilkhomrakhmatullaev7768 Жыл бұрын
Hi, I have a quation about Total coliform count! If I have 26 coliform in 1st trail and 0 in second trail, How can I count Total coliforms? (26+0)/2=13, 13*10=130! Is it true answer? Thanks for your answer!
@seloumabio6407 ай бұрын
Normally we count only those who have a number between 15 and 300 so the one with 0 is not countable
@kurohi98182 жыл бұрын
hello can i ask a question can this method be used to test filtered water, to use it as one of the test conducted to test a filter i made?
@MicroChemsExperiments2 жыл бұрын
Yes. You can use
@kurohi98182 жыл бұрын
@@MicroChemsExperiments thank you
@mohdabrar28393 жыл бұрын
thanks
@MicroChemsExperiments3 жыл бұрын
You are welcome. Stay with us.
@haiderkhan30623 жыл бұрын
Can you make vedio on M Endo agar media preparation and calculation
@MicroChemsExperiments3 жыл бұрын
Noted. Stay with us.
@shazekorcari49223 жыл бұрын
Can you replace Endo Agar with VRBLA ?? Thank you
@haiderkhan30623 жыл бұрын
@@shazekorcari4922 Which organisms grow on this VRBL
@hemedimshanafihiri53716 ай бұрын
Can maconkey used in determination of faecal coliform in food sample which is in solution form
@MicroChemsExperiments6 ай бұрын
Yes. You can use
@MounikaKinnera-x4m8 ай бұрын
Mam why don't we use macconkey agar for coliforms
@MicroChemsExperiments8 ай бұрын
VRBL agar medium is more specific for coliform
@foodiekamini2993 жыл бұрын
Can u plz tell me if I have done testing of E.coli on Tryptone bile X Glucuronide medium and after incubation I have found yellow growth on my plate ,so which bacteria is this E.coli or something else????? Plz reply
@MicroChemsExperiments3 жыл бұрын
E. coli gives Blue colour colonies on TBX agar medium. So, other gram negative bacteria may give yellow colour colony. So you have to go for the identification tests to identify that bacteria
@saniketbhosle33909 ай бұрын
Is this technique applicable for food products like milk?
@MicroChemsExperiments9 ай бұрын
Yes
@gloriagrey51847 ай бұрын
what is the standard values that the water is safe to drink.
@MicroChemsExperiments7 ай бұрын
The maximum permissible limit of MPN in drinking water is 2.2 per 100 ml of water, as recommended by WHO
@madinimallika93675 ай бұрын
Mam please culture media preparation
@seloumabio6407 ай бұрын
Why did you add the medium for a second tima ?
@MicroChemsExperiments6 ай бұрын
To confirm isolated coliforms
@poojabondre30163 жыл бұрын
MPN method bataiye TC,FC,nd E.Coli
@MicroChemsExperiments3 жыл бұрын
Pooja Bondre, Noted. We will work on it soon. Stay with us.
@poojabondre30163 жыл бұрын
@@MicroChemsExperiments okk...
@kanukanu41413 жыл бұрын
Can we use lactose broth for enrichment than pouring in vrb
@MicroChemsExperiments3 жыл бұрын
For Total Coliform Count, don't go for the enrichment. Enrichment is only applicable for detection method.
@abdullahmohamed20273 жыл бұрын
thanks in advance for this informative video ,but i have concern if the number of colonies is less than 10 cfu and i analysis food sample as cocoa powder what result i will write in report absent or not detected or less 10 cfu or tltc and what in case higher than 150 cfu also if no colonies detected but i should mention the iso standard i follow appreciate your support
@MicroChemsExperiments3 жыл бұрын
Mention all your dilutions. Which lowest dilution you used to inoculate? Mention also the count of each plate.
@Azmo4773 жыл бұрын
Yeah, there's a Iimitation in this procedure when it comes to detection threshold. The best result you'll be able to provide is
@MicroChemsExperiments3 жыл бұрын
@@Azmo477 you are correct. Thanks for the explanation.
@KashifateOsseni6 ай бұрын
J'adore la vidéo svp 🙏 pouvez vous faire une version en français pour nous
@MicroChemsExperiments6 ай бұрын
Thank you very much. Unfortunately at this moment we can't make videos in French. You can use translator or select french subtitles while playing the video
@ramkrishansharma671711 ай бұрын
Sir bacillus cereus ki video hai kyaaa
@MicroChemsExperiments11 ай бұрын
We will make it later
@ramkrishansharma67175 ай бұрын
Ok sir @@MicroChemsExperiments
@ladymex072 жыл бұрын
Would you have a pdf version of this?
@MicroChemsExperiments2 жыл бұрын
We do not provide any pdf
@gloriagrey51847 ай бұрын
we get the water sample to the deepwell.the result is 8.0 MPN/100ml. is this safe to drink?
@MicroChemsExperiments7 ай бұрын
The maximum permissible limit of MPN in drinking water is 2.2 per 100 ml of water, as recommended by WHO
@sinatryaahmaddwifa3012 жыл бұрын
Peptone salt solution is for?
@MicroChemsExperiments2 жыл бұрын
Diluent for Dilution of sample
@swathikumar1002 жыл бұрын
Using 1ul or 10 ul Inoculating rod used in microbiology.
@MicroChemsExperiments2 жыл бұрын
Your question is not clear
@gajahmada96652 жыл бұрын
what is the name of this method ?
@MicroChemsExperiments2 жыл бұрын
Enumeration of coliform from food and feed samples.
@aak-lm5ln2 жыл бұрын
@@MicroChemsExperiments this is method not for water??!!
@MicroChemsExperiments2 жыл бұрын
@@aak-lm5ln Yes. This method is also available for water samples
@aak-lm5ln2 жыл бұрын
@@MicroChemsExperiments but it is Approvalin food.
@aak-lm5ln2 жыл бұрын
@@MicroChemsExperiments is there any method to confirm coliform in water with only petri dishes without tubes?
@Wt520lyn3 жыл бұрын
Hi, I would like to ask, if my sample is a food, does the steps still apply?
@MicroChemsExperiments3 жыл бұрын
Yes. The same method will be applicable for any kinds of food sample
@Sunnycookies2 жыл бұрын
Can we apply same method to potable water? Also can we run positive and negative control?
@MicroChemsExperiments2 жыл бұрын
Yes. You can
@surampudiraviteja50892 жыл бұрын
Do you have Instagram page
@MicroChemsExperiments2 жыл бұрын
Nop
@kanukanu41413 жыл бұрын
How much ml of lactose broth u took for confirmation
@MicroChemsExperiments3 жыл бұрын
10 ml
@glacymaejacinto94513 жыл бұрын
What sample has the highest number of bacteria?
@MicroChemsExperiments3 жыл бұрын
It is difficult to say because bacterial load depends on sample type and the environment. You will find large number of bacteria in spoiled food sample and in waste water sample
@glacymaejacinto94513 жыл бұрын
What if you serial diluted a water sample and in 1:10 you have 63 counted colonies and its number of bacteria per ml is 630, and you also have 1 colony in 1:1000 and its number of bacteria per ml is 1000. What dilution has the highest number of bacteria?
@MicroChemsExperiments3 жыл бұрын
@@glacymaejacinto9451 The plate with 1 CFU should be considered in the colony counting. Count the plates with 10-150CFU per plate for coliform and calculate the total CFU of your original sample.
@glacymaejacinto94513 жыл бұрын
@@MicroChemsExperiments thank you for the info! 🤍
@MicroChemsExperiments3 жыл бұрын
@@glacymaejacinto9451 you are welcome
@gsreekanth71503 жыл бұрын
What is the limt of range
@MicroChemsExperiments3 жыл бұрын
Detection Limit is 1 CFU/ml
@s.d.heavyseafoodprivatelim35412 жыл бұрын
why add 4 ml of extra violet red bile lactose agar
@MicroChemsExperiments2 жыл бұрын
The ISO method said so
@salmahshahab81462 жыл бұрын
if there is no gas in the BGLB medium, how do we interpret the presence of total coliforms? or what is the relationship between the confirmation test and the number of colonies in VRBL?
@MicroChemsExperiments2 жыл бұрын
Coliform must produce gas in durham tube. If gas production is failed the interpret the result as the count is less than 1 CFU/ml
@ZAKIUR.2 жыл бұрын
Make for mold culture
@MicroChemsExperiments2 жыл бұрын
Noted
@bokulhossain57714 жыл бұрын
make a vedio for ice-cream microbilogy test!
@MicroChemsExperiments4 жыл бұрын
Total coliform count of ice cream is same as water. If you want other parameter test for ice cream, please mention that parameter. Thank you
@@bokulhossain5771 Noted. Hopefully we will start working with your mentioned parameter soon.
@migueth27874 жыл бұрын
@@MicroChemsExperiments espectacular :)
@MicroChemsExperiments4 жыл бұрын
@@migueth2787 Thank you. Be with us
@deeppandit38074 жыл бұрын
Ma'am please fecal coliform test procedure bataye.
@MicroChemsExperiments4 жыл бұрын
Deep Pandit, Noted. We will work on it. Stay with us.
@sinatryaahmaddwifa3012 жыл бұрын
265/ml is 26500/100 ml right?
@MicroChemsExperiments2 жыл бұрын
Yes.
@safaafrin53913 жыл бұрын
Put up lot of coliform test pls
@MicroChemsExperiments3 жыл бұрын
Sorry I didn't get your request. plzz clarify
@safaafrin53913 жыл бұрын
Water analysis test
@MicroChemsExperiments3 жыл бұрын
@@safaafrin5391 please mention test parameter.
@safaafrin53913 жыл бұрын
@@MicroChemsExperiments like aerobic colony count, listeria sp, clostridium perfringens, etc..
@MicroChemsExperiments3 жыл бұрын
@@safaafrin5391 noted. We will make video for it. Stay with us.
@abhipal87213 жыл бұрын
Hindi me batao
@MicroChemsExperiments3 жыл бұрын
Sorry, we use international language.
@ArtworkShalini4 жыл бұрын
Are you a teen? Please don't use such an accent.... I'm not able to concentrate 😂
@MicroChemsExperiments4 жыл бұрын
Artwork Shalini, I'm not good in English and I'm sorry for that. Please mute the audio and take help from the videos and subtitles.
@ArtworkShalini4 жыл бұрын
@@MicroChemsExperiments Oh sorry...I didn't mean to hurt you... Anyways, the video was good. The important thing is that it was informative.
@ArtworkShalini4 жыл бұрын
@@MicroChemsExperiments and I wanted to ask, what is MPN/100ml...I mean what is the full form of MPN?
@MicroChemsExperiments4 жыл бұрын
@@ArtworkShalini No no I didn't mind for your comment. Your findings will help me to do better in future. I will try to improve my accent in future. Thanks for the comment.
@MicroChemsExperiments4 жыл бұрын
@@ArtworkShalini MPN is Most Probable Number. MPN/100ml means Most Probable Number of microorganisms in 100ml of sample
@gatkuothyuot68073 жыл бұрын
please thank for microbiological video this is wonderful lesson you make my experience great again.