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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
...standing the nature of relationship between the residing microbes inside human cells and about their function is very important to put an end to this war and to live in peace with the natural organisms that are benefitting human body and their survival has become our primary importance.
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
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.
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
Microbes are major key components in both are homes and industrial food preparation. There are number of lactic acid which is a form of bacteria which is a large group of beneficial bacteria used in certain foods while they are getting prepared such as yogurt, cheese, sour cream, butter milk and other type of fermented milk products. Things such as vinegars are produced by bacterial acetic acid fermentation. Yeast is also major use in the making of beer and wine and also for the leaving of breads. This also involves fermentations to convert corn and other vegetable carbohydrates to also make beer, wine or gasohol but also bacteria is the agents of are other foods. Other fermented foods will include things such as soy sauce, olives and cocoa. (Microbes and human life, 2013) Single cell proteins are known as dried cells of microbes which are used in protein supplement shacks. They are also called “novel food” and “minifood”. The production of this requires micro-organisms which then serve as the protein source and then the substrate which is biomass which they grow on them. There are a number of both these sources that we are able to use for the production of single cell protein (SCP). The micro-organisms used belong to the following groups of Algae, Fungi and bacteria. (Slide Share, 2012)
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.
Microbial decomposition releases nutrients into the environment that are needed by other organisms. Microbes are also involved in the cycling of many other important compounds in — and between — ecosystems, including oxygen, carbon and nitrogen. Many microbes use the energy of sunlight to convert carbon dioxide to oxygen, which we need to breathe. As they do this, they create new organic material — themselves — which are then eaten by other organisms. In this way, the cycling of nutrients and energy
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)
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!
The main reason why this research is being investigated is because it would benefit scientists researching this material. If scientists could find a way to make certain bacteria grow at a slower or faster rate it could benefit society. If certain types of bad bacteria were growing in your home and scientist knew how to keep that bacteria from spreading quickly it could help people with serious health conditions.
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.
...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.
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