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Comprehensive essay on food preservation
Conclusion on food preservation
Microorganisms in food
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Recommended: Comprehensive essay on food preservation
Maryan Ibrahim
Discuss the role of microbiology in ensuring food supplies and food safety.
Microbiology has had a big part in food safety and food supply. Microbiology has educated us on how different ways to preserve our food. Microbiology has helped immensely with food supply, by making efforts to keep harmful organisms from our food. Teaching us the importance of not only nourishing our bodies but making sure its safe and abundant is what microbiology has don for us.
Microbiology has helped preserve our food through different processes. By making sure our food doesn’t go bad very quickly that can also manage waste. More than 25% of food supply is wasted, however people die of hunger everyday. So by using microbial processes we can make
Many relate the existence of cyanobacteria to be the reason for life on earth. Cyanobacteria are aquatic and photosynthetic. They live in the water and can find their own food. Since they are bacteria they have one cell and are really small, but grow in large colonies. They are distinctive because they have one of the oldest fossils being over 3.5 billion years old.
Cyanobacterium have an immense importance because they shaped the course of evolution by being an important maker of nitrogen fertilizer which make beans and rice. The planets oxygen atmosphere is because of cyanobacteria. Since before time we didn’t have much chemistry in the atmosphere that was made for life.
Another importance would be the origin of plants. The chloroplast plants eat is a cyanobacterium that lives in plants. They are often call blue-green algae for their prescence in water and their color.
I actually learned of this microbe at work. I was so interested even though I don’t believe in the textbook definition of evolution. One of my coworkers said that he believed Cyanobacterium was GOD. As I became alert from his answer, I began to research it. Although, I still don’t believe the bacteria is GOD it still certainly deserves
Furthermore, food safety is a major issue in the United States. Foodborne illness has caused an estimated 1 and 6 Americans to be sickened, 128,000 hospitalizations, and cause 3,000 deaths each year (http://www.sustainabletable.org/). These numbers may seem shocking, but they are all too real. All of the high levels
There are numerous types of bacteria that can be found in every environment. Each bacterium has different morphology which includes shape, texture and pigment production. These bacteria also have different food requirements which are important in being able to identify a microorganism. Microorganisms are a diverse group containing all bacteria a single cell prokaryotic organism that is found in every type of environment, archea single cell microorganism that lacks nuclei and almost all microorganisms are protozoa a unicellular eukaryotic organism. By identifying the causative agent of a bacterium within an individual, an antibiotic can be developed to prevent health issues. Microorganisms are also used to make certain food products for human consumption. An example of this would be the production of yogurt. It has probiotics that help with digestive abnormalities amongst other things. Probiotics are microorganisms that are consumed to provide health benefits in the body. Probiotics work by replacing the disturbed microbe with ones that are useful to digest. With the methods that wer...
It is widely believed that this change was brought about by the emergence of cyanobacteria which had adapted to create energy from the sun by photosynthesis(probably due to a shortage of raw materials for energy), as a result they had began to poison the earlier anaerobic bacteria or archea with their waste product; oxygen.
Bacterial cells, like plant cells, are surrounded by a cell wall. However, bacterial cell walls are made up of polysaccharide chains linked to amino acids, while plant cell walls are made up of cellulose, which contains no amino acids. Many bacteria secrete a slimy capsule around the outside of the cell wall. The capsule provides additional protection for the cell. Many of the bacteria that cause diseases in animals are surrounded by a capsule. The capsule prevents the white blood cells and antibodies from destroying the invading bacterium. Inside the capsule and the cell wall is the cell membrane. In aerobic bacteria, the reactions of cellular respiration take place on fingerlike infoldings of the cell membrane. Ribosomes are scattered throughout the cytoplasm, and the DNA is generally found in the center of the cell. Many bacilli and spirilla have flagella, which are used for locomotion in water. A few types of bacteria that lack flagella move by gliding on a surface. However, the mechanism of this gliding motion is unknown. Most bacteria are aerobic, they require free oxygen to carry on cellular respiration. Some bacteria, called facultatibe anaerobes can live in either the presence or absence of free oxygen. They obtain energy either by aerobic respiration when oxygen is present or by fermentation when oxygen is absent. Still other bacteria cannot live in the presence of oxygen. These are called obligate anaerobes. Such bacteria obtain energy only fermentation. Through fermentation, different groups of bacteria produce a wide variety of organic compounds. Besides ethyl alcohol and lactic acid, bacterial fermentation can produce acetic acid, acetone, butyl alcohol, glycol, butyric acid, propionic acid, and methane, the main component of natural gas. Most bacteria are heterotrophic bacteria are either saprophytes or parasites. Saprophytes feed on the remains of dead plants and animals, and ordinarily do not cause disease. They release digestive enzymes onto the organic matter. The enzymes breakdown the large food molecules into smaller molecules, which are absorbed by the bacterial cells. Parasites live on or in living organisms, and may cause disease. A few types of bacteria are Autotrophic, they can synthesize the organic nutrients they require from inorganic substances. Autotrophic bacteria are either photosynthetic or Chemosynthetic. The photosynthetic bacteria contain chlorophyll that are different from the plant chlorophyll. In bacterial photosynthesis, hydrogen is obtained by the splitting of compounds other than water.
Microbiology is a complex subject that spans out into a variety of areas. I am a person who is entering the health care field, and it is inparitive that I know the subject of microbiology and how if effects the world in which we live.
The term “microbiology” refers to the branch of study that deals with microorganisms. Microbiology is extremely important in today’s time for the crucial information that the study provides. Human’s have had a long and cruel history of disease and sickness, for example the bubonic plague, but microbiology gives scientists the ability to observe, study, and prevent sickness like the bubonic plague to ever happen again. At the center of microbiology lies the bacterial cell, one that differs from those of a plant or animal because it lacks a nucleus and membrane-bound organelles which, in turn are traded for pili, flagella, and in some cases a cell capsule. Bacteria that are capable of causing illness or disease are called pathogens, pathogens work by releasing toxins in the body or directly damaging the host’s cells. An article by Lise Wilkinson explains that the earliest categorizations of bacterial cells first occurred in the late eighteen-hundreds to the early nineteen-hundreds by scientists (at the time) O. Muller and C. Ehrenburg (Wilkinson, 2004). The observation and identification of unknown bacteria that emerge is crucial because these new bacteria might be pathogenic and cause illness so it is very important that the bacteria is identified as soon as possible in order to either prevent the upcoming illness or treat it. While the common person is unable to identify if they are carrying bacteria (which is very likely), specialized tests that are ran in a lab can identify different types of bacteria and can even help
It is a single-celled organism that is not visible to the human eye, which means it can only be seen with a microscope. Bacteria are classified as Prokaryotes. They make their own food from the sunlight and can absorb food from the materials that they live on.
Food safety is an increasingly important public health issue. Governments all over the world are intensifying their efforts to improve food safety. Food borne illnesses are diseases, usually either infectious or toxic in nature, caused by agents that enter the body through the ingestion of food. “In industrialized countries, the percentage of people suffering from food borne diseases each year has been reported to be up to 30%. In the United States of America, for example, around 76 million cases of food borne diseases, resulting in 325,000 hospitalizations and 5,000 deaths, are estimated to occur each year.” (Geneva 2)
The energy extracted today by the burning of coal and petroleum products represents sunlight energy captured and stored by photosynthesis almost 200 million years ago. A third very interesting group of bacteria synthesize sugars, not by using sunlight’s energy, but by extracting energy from inorganic chemical compounds; In a (d) deep sea vent, chemoautotrophs, such as these (e) thermophilic bacteria, capture energy from inorganic compounds to produce organic compounds.
In some way, shape, or form energy is one of the several reasons why there is an existence of life on earth. Cellular respiration and Photosynthesis form a cycle of that energy and matter to support the daily functions that allow organisms to live. Photosynthesis is often seen to be one of the most important life processes on Earth. Photosynthesis is a process by which plants use the energy of sunlight to convert carbon dioxide and water into glucose so other organisms can use it as food and energy. It changes light energy into chemical energy and releases oxygen. This way organisms can stay alive and have the energy to function. Chlorophyll is an organelle generally found in plants, it generates oxygen as a result too. As you can see without
Life according to scientists is “the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death, also the way of life of a human being or animal.”("Life,”) In order for one to have life, one must have the nine characteristics to be considered a living thing. These nine characteristics are; all living things are made up of cells, living things are able to reproduce, living thing use energy, maintain homeostasis, respond and adapt to the environment, grow and develop, have a life span, evolve over time, and are interdependence. All of the nine characteristics have one thing in common, something that is needed for all living things to use, even if they do not know it. This beautiful thing that all living things should value is photosynthesis. Without photosynthesis there wouldn’t consist humans, animals, insects, and most importantly life!
...esity is becoming an epidemic, nanotechnology could be used to create foods which are low in fat, salt and sugar but are still nutritionally dense and taste great. Food is naturally nanostructured material – simply boiling an egg causes many changes; the proteins in the egg white change shape and tangle together to form a solid. We now have the opportunity to study what exactly happens in these nanoscale changes. Nanotechnology gives us many ways to ensure our food is safe and waste is cut down. However, there are many concerns that this form of processing is another way to put more power into the hands of large food companies- yet food has never been safer than it is today largely due to the strict hygiene and sanitation practices these companies follow. As the population continues to grow – so too will the importance of new food technologies like nanotechnology.
Food is a product that is rich with nutrient and can be contaminated with exposed to major source such as water, air, dust, sewage, insects and rodent (Oi Nee and Norrakiah, 2011). As a food handler they need to handle the changes in preparation techniques and food production because the fact remains whereby food is the source for microorganism which can cause illness (Oi Nee and Norrakiah, 2011).
New opportunities and challenges of human health are presented by the application of biotechnology to food. Biotechnology helps improve the quality and nutrition of foods consumed by people,this helps their health. Foods produced through biotechnology has been around for more than 15 years but people are still debating about how safe the food is. Biotechnology still have to plays its role by increasing agricultural productivity,especially in light of climate change. I believe that biotechnology is still going to help better th nutritional value of food. It can also assist farmers to increase their productivity so that they can feed their families and many people across the globe. The whole world should be using the food biotechnology because it has the ability to change the world,it can be to end world hunger .
Food-borne illnesses fall into two categories, intoxicant and infections. An understanding of the causes and preventions will limit any contaminations. The food preparation process emcompresses the sanitation process from