STEP 2: Submitted Samples - Day 0 to 21

Here are the pictures of your samples before and after 21 days of incubation with a special food that helps yeasts grow. Look for changes between the pictures, what has happened? Do you notice any differences? Compare both of your pictures to the picture on the right that shows the yeast food before you added your sample.

CLEAN
 and
CLEAR
559.JPG
560.JPG
561.JPG
562.JPG
563.JPG
564.JPG
559.JPG
d21 559.jpg

#559

Doesn't look great for yeast growth but let's see what grows on a petri dish! 

567 D0.JPG
567 D21.JPG

#567

This looks like there is yeast growth! There are bubbles most likely from the gas produced by yeast! We will see what we find on a petri dish! 

561.JPG
d21 561.jpg

#561

Yeasts don't appear to be growing but let's see what grows on a petri dish! 

562.JPG
d21 562.jpg

#562

This isn't looking like yeasts are growing but we will check what grows on a petri dish to be sure! 

563.JPG
d21 563.jpg

#563

There are no clear signs of yeast growth but we will still see what grows on a petri dish! 

564.JPG
d21 564.jpg

#564

Doesn't look much different after 21 days, but we will see if anything grows on a petri dish! 

565.JPG
d21 565.jpg

#565

Yeast growth is not clear in the tube but we will try a petri dish! 

566 D0.JPG
566 D21.JPG

#566

The media became cloudy but if there is yeast growth cannot be fully determined by looking at this tube. Let's try it on a petri dish! 

568 D0.JPG
568 D21.JPG

#568

There are bubbles and the media is becoming cloudy! These are good signs of yeast! A petri dish will help us decide if there is yeast! 

569 D0
569 D21.jpg

#569

This doesn't look like it has much growth. We will try putting it on a petri dish to verify there is no growth! 

570 D0.JPG
570 D21.jpg

#570

This sample doesn't appear to have much growth in it. We will plate it out to see if we get any yeast! 

571 D0.JPG
571 D21.jpg

#571

This sample doesn't appear to have growth but we will streak it out on a petri dish and see if it does have any yeast! 

572 D0.JPG
572 D21.jpg

#572

This looks good for yeast growth! We will streak it out and see if any yeast grows on a petri dish! 

573 D0.JPG
573 D21.jpg

#573

See the bubbles in the liquid! This looks good for yeast growth! We will plate this on a petri dish and check for yeast growth! 

574 D0.JPG
574 D21.jpg

#574

The media is cloudy! This means there is some microbial growth! It could be yeast! We will plate it out and see what grows! 

575 D0.JPG
575 D21.jpg

#575

The media is cloudy! This means that there are probably microbes growing! We will plate them out to see if they are yeasts! 

576 D0.JPG
576 D21.jpg

#576

The sample has some cloudiness to it which means that there are microbes growing! We need to plate them on a petri dish to see if they are yeast! 

577 D0.JPG
577 D21.jpg

#577

The sample doesn't look too promising for yeast growth but we will plate it out and check to see if you got yeast! 

578.JPG
d21 578.jpg

#578

There doesn't appear to be yeast growth in this tube but let's see what grows on a petri dish! 

579 D0.JPG
579 D21.jpg

#579

The sample seems to have microbial growth in it! We will plate it out to see if it is yeast or other microbes! 

580.JPG
d21 580.jpg

#580

Look at those bubbles in the second picture! Those are a good sign that yeast are present! This is getting moved to a petri dish! 

582 D0.JPG
581 D21.jpg

#581

This is interesting! The media turned black so it's hard to see what's going on! We will plate this out to see whats going on! 

582 D0.JPG
582 D21.jpg

#582

The media turned really dark and it is hard to see! We will plate it to see if there is microbial growth! 

583 D0.JPG
583 D21.jpg

#583

This is cloudy! This means that there is probably some microorganisms growing in the media! We will plate it out to see what grows! Hopefully yeast! 

584  D0.JPG
584 D21.jpg

#584

The media got cloudy! That looks good for microbial growth! Let's see if it is yeast by plating it out on a petri dish! 

585 D0.JPG
585 D21.jpg

#585

There may be yeasts in this tube! You can see the liquid got cloudier this may be a sign that it has yeast! We will plate it out and see what grows! 

586 D0.JPG
586 D21.jpg

#586

The white coating on the fruit is most likely yeast! The media is also cloudier so this is a good candidate for yeast growth! We will plate it out to see! 

587 D0.JPG
587 D21.jpg

#587

The liquid got very cloudy which is a good sign of yeast growth! We will plate it out to see what grows! Hopefully we got yeast! 

588 D0.JPG
588 D21.jpg

#588

There doesn't appear to be much change between the samples. This may not contain yeast but we will plate it to see  

589 D0.JPG
589 D21.jpg

#589

The liquid looks a little cloudier! This could mean there are yeast growing in this tube! We will streak it out to make sure that it is yeast! 

590 D0.JPG
590 D21.jpg

#590

There is slight cloudiness in the tube that might indicate yeast growth in the tube! We will streak it out to see if there is yeast! 

591 D0.JPG
591 D21.jpg

#591

This doesn't look like it has yeast growth in it but we can double check it with a petri dish! 

592 D0.JPG
592 D21.jpg

#592

This tube doesn't appear to have any yeast growth in it! We will streak it out to double check that it doesn't have yeast! 

593 D0.JPG
593 D21.jpg

#593

This tube doesn't appear to have any yeast growth. We will streak it out on a plate to help verify this! 

594 D0.JPG
594 D21.jpg

#594

There doesn't appear to be any yeast growth in this tube. We will streak it out to verify that this is true! 

595 D0.JPG
595 D21.jpg

#595

There doesn't appear to be any yeast in this tube. We will streak it out on a petri dish to verify this! 

596 D0 _).JPG
596 D21.jpg

#596

This tube isn't cloudy so there probably isn't any yeast in this tube. We will streak it out to see if there is any yeast in this tube! 

597 D0.JPG
597 D21.jpg

#597

This tube may have slight signs of yeast growth. There seems to be a collection of white down at the bottom of the tube. This might be yeasts!  

598 D0.JPG
598 D21.jpg

#598

This tube doesn't look like it has yeast growing in it but we will streak it out to double check! 

599 D0.JPG
599 D21.jpg

#599

The liquid seems a little bit cloudier and it looks like things have settled on the bottom a little. These are great signs of yeast growth! Move to step 4! 

600 D0 _).JPG
600 D21.jpg

#600

There seems to be a pile of stuff down at the bottom of the tube! This is a great sign of yeast growth! Move onto step 4! 

601 D0.JPG
601 D21.jpg

#601

The liquid got cloudier which is a great sign that yeast are growing in there! We will streak it out to see if there are! 

602 D0.JPG
602 D21.jpg

#602

There is a small pile of white at the bottom of this tube! This is a sign that yeast may be growing in this tube! We will continue to step 4 to see if you have yeast! 

603 D0
603 D21.jpg

#603

This sample doesn't appear to have much growth of yeast in it. We will streak it out on a petri dish to double check! 

604 D0.JPG
604 D21.jpg

#604

There seems to be a settled pile of white at the bottom of this tube! This looks very good for yeast growth! We will see if any grows on a petri dish! 

605 D0.JPG
605 D21.jpg

#605

The sample has a pile of white formed at the bottom! This is a great sign that there is yeast growth! We will see if yeast grow on a petri dish! 

606 D0.JPG
606 D21.jpg

#606

The liquid is cloudier which is a good sign that there is microbial growth! We will streak it out to see if there is yeast in there! 

607 D0.JPG
607 D21.jpg

#607

There is some gas production! You can see bubbles! This is a good sign of yeast! Let's see what grows on a petri dish! 

608 D0.JPG
608 D21.jpg

#608

There is some gas production which you can see because there are bubbles. This i a good sign of yeasts so we will see if any yeast grow on a petri dish! 

609 D0.JPG
609 D21.jpg

#609

The sample sure looks different but I wouldn't say it is growing yeast. We will streak it out to see if it is though! 

610 D0.JPG
610 D21.jpg

#610

There is a lot of white colored stuff collecting down at the bottom of the tube! This could be a sign of yeast! We will streak it out to see what grows! 

611 D0.jpg
Day 0 Control.jpg

#611

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

612 D0.jpg
Day 0 Control.jpg

#612

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

613 D0.jpg
Day 0 Control.jpg

#613

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

614 D0.jpg
Day 0 Control.jpg

#614

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

615 D0.jpg
Day 0 Control.jpg

#615

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

616 D0.jpg
Day 0 Control.jpg

#616

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

617 D0.jpg
Day 0 Control.jpg

#617

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

618 D0.jpg
Day 0 Control.jpg

#618

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

619 D0.jpg
Day 0 Control.jpg

#619

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

620 D0.jpg
Day 0 Control.jpg

#620

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

621 D0.jpg
Day 0 Control.jpg

#621

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

622 D0.jpg
Day 0 Control.jpg

#622

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

623 D0.jpg
Day 0 Control.jpg

#623

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

624 D0.jpg
Day 0 Control.jpg

#624

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

625 D0.jpg
Day 0 Control.jpg

#625

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

626 D0.jpg
Day 0 Control.jpg

#626

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

627 D21.jpg
Day 0 Control.jpg

#627

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

628 D21.jpg
Day 0 Control.jpg

#628

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

629  D0.jpg
Day 0 Control.jpg

#629

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

630 D0.jpg
Day 0 Control.jpg

#630

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

631 D0.jpg
Day 0 Control.jpg

#631

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

632 D0.jpg
Day 0 Control.jpg

#632

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

633 D0.jpg
Day 0 Control.jpg

#633

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#634

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#634

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

D0 635.jpg
Day 0 Control.jpg

#635

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

D0 636.jpg
Day 0 Control.jpg

#636

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

D0 637.jpg
Day 0 Control.jpg

#637

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

D0 638.jpg
Day 0 Control.jpg

#638

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

D0 639.jpg
Day 0 Control.jpg

#639

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#640

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#641

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#642

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#643

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#644

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#645

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#646

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#647

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#648

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#649

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#650

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#651

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#652

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#653

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#654

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#655

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#656

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

634 D0.jpg
Day 0 Control.jpg

#650

The sample has to sit and grow for 21 days to allow for any yeasts to grow up! Check back in 21 days! 

Day 21

Day 0