Fermentation: When Food Bad But Stays Good

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Many of the sciences we learn today come from the past. The people back then didn’t know the specifics and could not find a reason of these sciences, so the people started to praise their gods thinking they were the ones who made all this possible. There are many fields in sciences such as: chemistry, biology, physics, and astronomy. One of the biggest and most common fields is biology. One of the subtopics of biology is fermentation. Fermentation was used between 7000 and 8000 years ago making beer, wine, and bread. The two beverages were also a symbolic way to distinguish social statues, the better your wine or beer was the higher you were in the society. Today we have all types of fermented foods from bread, coffee, pickles, beer, cheese,…show more content…
Food fermentation is the process where there is a process of conversion between carbohydrates to alcohols and from carbon dioxide to organic acids. During this process we normally use bacteria, yeast, or both so these conversions could take place. In the article “‘Fermentation’: When Food Goes Bad But Stays Good” the author explains the descriptions of fermentation from a man called Sandor Katz (he calls himself a “fermentation revivalist”). Once he said that strong flavors were created by fermentation, but not everybody liked this kind of flavor. I agree with what he had said from my personal experience. When my father got married with my stepmother I got to have a new brother and he couldn’t stand the flavor of cheese and would not eat any food with it. As Katz said, this had to do with strong flavors affecting the culture. My new brother was not familiar with the strong flavor of cheese like in Mexico so he couldn’t stand it. A year passed and as he got familiar with the Mexican culture he started to eat and enjoy cheese. In this article it also talks about the effects of fermentation in foods. For example, by fermenting bread, cheese, yogurt, or any other kind of food he says that the fermented food would rot after a longer time than food that has not been fermented. The author also talks about how to ferment yogurt and…show more content…
This type uses fermentation to produce useful products to humans by fermenting microorganisms such as: bacteria and yeast. In this world there are five important types of fermentation; microbial cells, microbial enzymes, microbial metabolites, recombinant products, and biotransformation. In industrial fermentation there are many important factors to consider so that the bacteria could ferment. Growth media is one of the main factors we need to consider in this process. Growth media refers to any liquid or gel that will support any microorganisms or cells to grow. In the BIOE160 class we are currently using the medium LB (Lysogeny Broth or Luria Broth) to grow E. coli (this type of bacteria is usually found in the lower intestine of warm blooded organisms). Microorganisms also need water, oxygen, an energy source, carbon source, nitrogen source, and micronutrients. There are four stations that you could see on a graph of the cell growth. The first phase is called the lag phase. This phase is when the organisms are getting adapted to the media. The second phase is called the log phase. This phase is when the organism growth starts to increase in a steady way. The third phase is called the stationary phase. This phase is when the organism growth starts to slows down. The last phase is called the death phase. After many hours there would not be enough nutrients for the

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