Fermentation Lab Movie

[@lindseymao8961]

Thanks!! I'm using this during the COVID19 shutdowns for my class :D

[@Doughnutchef]

If you combined flour and sugar,the yeast would process the sugar 1st until its supply is exhausted,then and only then would it feed on the maltose in the flour.

[@teamwarriorsharsh7545]

Take you for explaining very clearly and energetic way

[@dinololic5676]

Can someone explain to me where the foam comes from? And why does the sugar produce more foam than flour? Did the experiment earlier today, and the sugar produced quite a lot of CO2, and foam aswell, the flour did also procude only slightly less CO2 (we measured balloons), but had no foam what so ever, we had the yeast mixtures in water for 10 minutes.

[@ciencias3344]

The foam is trapped CO2 molecules. The sugar is a simpler molecule so it is easier for the yeast to consume. The flour is made out of more complex sugars so it could not eat as much of that one... Hope this helps

[@mominahussain5552]

Wait would yeast undergo fermentation even if there is oxygen present in the conical flasks? Because I read if there is oxygen present, then the yeast will only undergo fermentation if the sugar substrate is in excess? Is this true? Nice video btw :)

[@_Jado]

Very well explained! Thank you!

[@adenawong2292]

Thank you, this video is amazing. Allow me to share it

[@mugsycarter974]

Please do!

[@aliciagarcia8379]

Why is the balloon in the flask that was boiled sucked in?

[@anniebehm2473]

how much water should i add to the yeast and why. i really need to know why it is for lab

[@mugsycarter974]

good question, the water is the environment the yeast live in so there should be enough to totally dissolve the yeast. amount isn't important as it is with the other ingredients. I used 100mL, i think, in this experiment

[@shantelramdial8760]

What enzyme in the yeast was responsible for carrying out fermentation?

[@paulinesdiary]

awesome explanation.

[@amazingactions9620]

How did each setup or treatment ended after 24 hours? Explain the principles behind each setup’s result.

[@lissaldana9768]

we love your videos..please make more!!!

[@igrewold]

Does yeast eat/consume starch(potatoes/rice/corn...etc.) ? Is it similar to table sugar ?

[@mugsycarter974]

Good question. The answer is yes. Starches are carbohydrates, and carbohydrates all also called sugars because they all contain the same building blocks. Whether its starch or table sugar, all carbohydrates can basically be broken down to glucose and used for energy by yeast (and humans, for that manner). The only difference is that sucrose (table sugar) is much smaller and can be broken down faster for energy than starch.

[@asthamishra6017]

Why we are adding salts in case of fermentation process when our aim is specific enzyme from specific substrate

[@hilitheartiste1212]

This is so helpful

[@faizshah3471]

nice videos and explanations

[@omprakash-ro3bl]

This is very good experiment

[@anushkanarula685]

where is the observation table?

[@seyiolufolabi9178]

Could you use a gas syringe instead of the balloons?

[@hanifah6466]

How much does the flour in the video weigh? This is for the lab.

[@mugsycarter974]

The flour and the sugar were both 300 grams

[@justin7hundley]

this will help my yields! Thanks science teacher dude. Shall I send you any samples?

[@kadidiat8692]

Thank you for your video, what gaz is collecting in the fermentation tube ?

[@mugsycarter974]

Carbon Dioxide

[@easy-draw]

The boiled one failed because you killed yeast by boiling. Yeast dies after 55 Celsius.

[@artistarmygrv1087]

What if you don’t have a hot pan can you put it on a stove / electric stove

[@mugsycarter974]

Yeah, that'd work great

[@patrickhaimbe4254]

Sir how much baker's yeast do you need for 150g of starch plus 1L of water?

[@mugsycarter974]

You don't need much, 1g or so should be fine

[@itsmefaith3168]

I have an idea of what it might of been but what was the control?

[@mugsycarter974]

The flask with no sugar or flour probably fits the best as a control. You could also argue for the flask with boiled yeast.

[@ChrisPBacon-rs9iv]

ok mugsy so technically you could produce alchohal from flour and yeast?

[@mugsycarter974]

Absolutely. Best left to the pros, though, to be safe and not terrible-tasting.

[@jocelynquintana4672]

What sugar was yeast best able to utilize for energy production?

[@TrinaSarkar808]

sucrose

[@marxiewasalittlegirl]

Nicely done,I needed it for my chemistry project.

[@vanessacardoza2391]

what flask(s) are considered as the control?

[@mugsycarter974]

It's a good question, it's a little more complicated than this, but i'd say the flask with no yeast in it is the best control.

[@omprakash-ro3bl]

any where available fermentation rate detection meter

[@bc6926]

What was the temperature you used to boil flask?

[@mugsycarter974]

Water boils at 100 degrees celsius.

[@engrWajih]

How the fermentation occurred in presence of air(oxygen) plz tell

[@mugsycarter974]

Yeast have evolved to do fermentation preferentially even if oxygen is available.

[@america2222]

Good video. Thank you.

[@berryff05]

Whats the aim?

[@emihlendaba9039]

What is the Independent variable

[@mugsycarter974]

In any experiment, the independent variable is the thing that the scientist changes. You could ask yourself 'What did he change about each of the flasks?'. This experiment is tricky because I didn't just change one thing, I changed several things in each flask (yeast, food, and temperature). A better experiment would be to just change one of these things, such as changing the amount of sugar in each flask.

[@jabrbho]

@@mugsycarter974 how did you change the yeast?

[@mugsycarter974]

@@jabrbho in one flask, I boiled the yeast in water before adding it. This killed the yeast.

[@pranjalbora1224]

how much time it will take

[@mugsycarter974]

This took experiment took 24 hours, but you can see some results if the water is warm after just 30 minutes or so.

[@Mrmogr]

online school...

[@HaniAni2522]

What kind of flour is that?

[@mugsycarter974]

Just all-purpose wheat flour. Any carbohydrate flour should work, though.

[@HaniAni2522]

@@mugsycarter974 Thank you sir.

[@sk71569]

What grade level do you teach?

[@mugsycarter974]

I teach high school in the US (grades 9-12). This demonstration was for a 9th grade class, but I could see it being useful for other grades too.

[@sk71569]

Thanks!

[@kailo8626]

sorry, but any askers?

[@dr.ploymorakotrumruangwong243]

Johncena

[@unfortunategamer2990]

no

[@edboi9953]

pog

[@sammalick4540]

Daddy mason oh daddy mason love but I’m black I don’t have a dad but where’s daddy mason

[@benjaminturnermurraybenjam2546]

P

[@majedalameeri7089]

Swag

[@rumbleizer]

69

[@rumbleizer]

is the number of yeast grains i would choose per bottle

[@rumbleizer]

Patrick Bays ech

[@rumbleizer]

Patrick Bays ech

[@rumbleizer]

Patrick Bays asdasdasd

[@disneyde1479]

Nice

[@drewevans5755]

Those are fucking beakers not flasks

[@mugsycarter974]

Nope, flasks. www.differencebetween.com/difference-between-beaker-and-erlenmeyer-flask/