Importance Of Yeast

Yeast is a type of a fungus, and Lactobacillus acidophilus is a type of bacterium. First of all, yeast is a unicellular fungus that consists of the single oval-shaped cell. It is capable of converting sugar into carbon dioxide and alcohol. The word ‘yeast’ was originated from the Old English word ‘gist’ and ‘gyst’. Also from the Indo-European word meaning ‘boil’, ‘foam’ or ‘bubble’. Yeast cell is made up with nucleus, which contains genetic codes for enzymes for the respiration, Mitochondria (a.k.a food storage granule), which contains enzymes for the reactions in aerobic respiration, cell membrane, which allows gases and water to enter and exit the cell and blocking other chemicals from entering, Cell wall, which maintains the shape of the

Yeast can be used in our daily life to make food such as alcoholic drinks and bread. Yeast takes a big part of the bread while it’s made because it is the main source that makes the bread/dough rise. During this process, yeast consumes the sugar and excrete carbon dioxide and alcohol. Not just yeast has an ability to leaven the dough, but also the fermentation helps to strengthen the gluten and contributes to the flavors of the bread. Even though the two different life processes (eg. Reproduction and excretion) are carried out, the results are all connected. Yeast can not directly, in most cases, benefit humans; however, humans can use yeast to benefit their lives. Reproduction, nutrition, and excretion have a big connection between them. A dough containing sugar is a nutrition for the yeasts and it excretes the carbon dioxide after consumption. When the ingredients are mixed fermentation occurs in which the yeast cells break down the large starch molecules into sugars for nutrition. It is required for survival and reproduction, and then, yeast excretes carbon dioxide and ethyl alcohol into the oxygen bubbles in the dough. However, if too much of the yeasts are added, it will produce more gluten and the dough may collapse while baking. Another famously known example is alcoholic drinks. Yeast is the most important ingredient in wine and beer making. It seems to do the same thing in bread making. For winemaking, according to the history, it uses grapes. The sugar from the grapes is consumed by the yeasts and converts them into ethanol(alcohol) and carbon dioxide through the process of fermentation. Same with bread, the budding will increase the number of yeasts and therefore, they will produce more alcohol and carbon dioxide. However, there are a certain amount that has to be put in, in order to produce the perfect result. Not only if it can help us through the food, but yeast can work as a