Well water may contain minerals and other impurities that can affect the growth and activity of yeast. Different mineral levels in well water can impact fermentation, potentially by inhibiting or promoting yeast growth. Water quality can influence the flavor and quality of the final product in yeast-based processes like bread making or brewing.
You need a minimum of one yeast organism (which is microscopic). If you start with a very small amount of sugar, water, and yeast, you will wind up with a very small amount of ethanol. It's very logical.
Hydrogen peroxide is a very powerful oxidizing agent. The cell walls of the yeast are made up of organic compounds that can be oxidized by the H2O2. It destroys the cell walls and kills the yeast in the process.
Yeast produces an enzyme called catalase, which breaks down hydrogen peroxide into water and oxygen gas. When yeast is added to hydrogen peroxide, the catalase enzyme reacts with the peroxide, generating oxygen gas bubbles, which causes the frothing effect.
The yeast itself doesn't react, the enzyme within the yeast which is called catalase simply acts as a catalyst for the decomposition of H202 (hydrogen peroxide) in to H20 and 02. You will see the mixture begin to rise, this is the oxygen bubbles.
Yeast needs sugar as a food source, water for hydration, and a moderate temperature range to produce carbon dioxide during fermentation.
Depending on the amount of acid added, the yeast not grow as well, and will die if enough is added.
EH...... what the heck
Warm water is best for yeast because yeast is a living organism that likes to live in similar temperatures to humans. Put yeast in hot water and it dies, put it in cold water and it will not do its job properly (will be too cold to reproduce fast etc). Put it in water that is just right and it will thrive
Yes, because it can respire in water. This can be proved as to make bread people put yeast and that yeast can respire in water as batter has water. Respiration in yeast- C6H12O6----> C2H5OH + 2CO2 + Ethyl Alcohol/ethanol
Your recipe should indicate where and how to add the yeast, but yeast does not dissolve well in milk (if at all). Yeast forms into large clumps when mixed directly with milk and will take much longer to activate. I made this mistake the first time I tried to substitute milk for water when making bread. The usual way of adding yeast to such a recipe is to fully dissolve the yeast in 1/4 cup of warm water (about 110 degrees Fahrenheit). If the water is not warm enough, it won't activate the yeast and if it's too warm, it can kill the yeast. One of my colleagues proofs the yeast in the usual way (1/4 cup warm water, 1 tsp sugar, 1 tsp yeast), then adds the rest of the yeast to the water, mixes the dry ingredients with the milk for the recipe, then adds the water-yeast mixture to that. He claims that it works perfectly. Of course, if you use 1/4 cup of water to dissolve your yeast, subtract 1/4 cup of milk from the recipe unless otherwise indicated. And also make sure you're using the proper yeast for whatever it is you are baking.
warm water - yeast needs warm water to become active. suger is the yeast's food .it gives the yeast the energy it needs to grow. cold water - the cold water kills the yeast (kind of) normal room temperature - the yeast just becomes in active and doesn't react
The heat provides energy for the enzymes in the yeast to work. If the water is to hot however, the enzymes will be denatured, and the yeast will not grow.
flour , yeast , warm water , salt
Hot water kills yeast. If the water is to hot then the enzymes within the yeast will be denatured and unable to work. Instead warm water must be used to encourage 'growth'.
When yeast is in cold water, it goes dormant. If the water is too cold, though, it will kill the yeast.
Hydrogen peroxide and yeast can react to produce oxygen gas and water. The yeast acts as a catalyst, breaking down the hydrogen peroxide into oxygen and water.
The main types of yeast used for baking and cooking are active dry yeast, instant yeast, and fresh yeast. Active dry yeast needs to be dissolved in water before use, instant yeast can be mixed directly into the dough, and fresh yeast is a moist block that needs to be crumbled and dissolved in water.