hi and tactically Stanford in for the day on food science we are talking about
presentation just the strictly speaking fermentation is an energy-producing process that does not require oxygen to take place it anaerobic in nature bacteria least and even human cells use fermentation to create energy in the form a ATP from sugar some organisms like the bacteria that can get into canned food in cause botulism or that lyndon rust can cause tetanus will die if they're exposed
oxygen they rely on fermentation for all their energy others use oxygen but can switch to fermentation if the environment demands it still others don't really care one way or another so to break it down walk self take a simple sugar glucose and split it into a compound called pie roommate through a process called glycolysis then depending on the organism the paper they can go down one to two different fermentation pathways in human muscle cells and in the bacteria that help us make yogurt
I really get converted into lactate you may call it lactic acid pink you get it back to you hey
YUM the other pathways used by single-celled organisms to convert the pie rebate into carbon dioxide and alcohol something animals have been taking advantage I have for a long time peoplemeter barey get and mitogenic and the little baby and I'm gonna land in a trunk humans have harnessed the fermenting power Saccharomyces cerevisiae atop the East for bread making
the yeast ferments the sugar added to the dough creating carbon dioxide which
makes the bread rise by creating lots and lots of bubbles
the gases forced out of the bread but the space is left behind by the air bubbles give us back what the poorest final product we can take advantage of the East sugar addiction for more kitchen fun
like making carbonated ginger ale cuz that's what you would do right spied so first
with the final in a 2-liter bottle you gonna take a cup of white sugar and a quarter teaspoon
at the East use bread making is that you can get at a grocery store convenient and it works just fine take your final out and shake it to distribute the yeast throughout the sugar
now we're going to great one to one-and-a-half tablespoons a fresh ginger add more ginger if you like it I the act take the ginger and just stuff it in your bottle back and add the juice of 1 lemon
Meyer lemons work great because the pretty sweet but you know whatever liminal work
are squeeze let's do it again speak to be strong architects squeeze squeeze squeeze
KS there we go add that to the mix in the bottle up and shake it up mixed up but the final back in
and then fill the bottle almost to the top with water edged ok I'm
cap it and check it again this time given a million vigorous shaking
she gets to decide lol support role play circuits have any and all those polled that was a silly so
tickets upset when you then shaking it put it someplace warm not hot for twenty-four to forty-eight
hours he still do its thing take up the sugar and converted into carbon dioxide
a little bit about the hall but not so much that you need to worry about getting buzzed
however you do need to be concerned with how much co2 is being formed
too much and you might end up with an exploding soda bottle
so check it periodically by squeezing it with your fingers when you can no longer
dent the bottle it's done steak in the fridge to chill
the cool temperatures will slow down the East metabolism and the fermentation process
keeping you from having to clean up a giant math when it sufficiently chilled strain out the ginger ok of
I'm and drink 0 tangy but remember it's not just food a pairing free premium he planted food bank for improved