Food conservation essay
She points out that communities expand and advance their structures to accommodate the increased population growth which have resulted into food insecurity. If foods are to be preserved for longer periods, they must undergo special treatments such as freezing or heating.
When the topic regarding conservation comes up, what is the first thing you think of?
Food conservation essay
It is orally ingested and after passing through a series of processes involving enzymatic actions it is assimilated and the energy obtained is used by the organism to carry out processes like growth, maintenance of life and carrying out physical activities. The processes involved in canning include food pasteurization, boiling, sterilization and vacuum treatment Singh, What happens between the time food leaves the farm and the time it is eaten at the table? In the absence of air, no new pathogens can gain access to the sterilized food. As with most methods of food preservation, freezing works better with some foods than with others. The holes were then sealed with hot metal. Some are made of aluminum. Packaging The packaging of processed foods is just as important as the process itself. Some endangered species do not need much help from human beings—if the threat is removed, they can recover on their own. Of the many dozens of chemical additives available, all are designed either to kill or retard the growth of pathogens or to prevent or retard chemical reactions that result in the oxidation of foods. The foods are prepared and the empty cans are sterilized. If foods are to be preserved for longer periods, they must undergo special treatments such as freezing or heating. Liquid food is dehydrated usually by spraying it as fine droplets into a chamber of hot air, or occasionally by pouring it over a drum internally heated by steam.
He argues that material science defines the relationship that exists between the food structure and its properties. The process is less effective in food preservation than are thermal techniques such as boiling because pathogens are more likely to be able to survive cold temperatures than hot temperatures.
They point out that these science disciplines have eased the synthesis and packaging of different foods, hence encouraging food preservation methods. The farmers that are using it says that it gives them a means of conserving, improving, and making more efficient use of their natural resources There is no single method of food preservation that provides protection against all hazards for an unlimited period of time.
Food preservation technology
But when the plants and animals are killed, the organisms yeast, mold, and bacteria begin to multiply, causing the food to lose flavor and change in color and texture. Many Himalayans depend on farm animals for their living but do not have enough food for them; as a result Conservation words - 4 pages environment. Experts predict that the ease and efficiency of food preservation by means of radiation will develop considerably in the future. Present-day dehydration techniques include the application of a stream of warm air to vegetables. From the modest canning industries in to the sophisticated food processing plants of today, food processors have provided the world with more healthful diets, food combinations never before possible, and a convenience unimagined years ago. Drying and Dehydration Although both these terms are applied to the removal of water from food, to the food technologist drying refers to drying by natural means, such as spreading fruit on racks in the sun, and dehydration designates drying by artificial means, such as a blast of hot air. Along with it bringing new discoveries, allowing for our lives to become healthier, more efficient, safer, and at the same time, possibly more dangerous. Tools of Preservation One of the tools that have been widely used in food preservation is refrigeration. Preservation Methodology Food Packaging One of the packaging instruments that have been widely used in food preservation is food canning. Further sterilizing is not required. In any case, the value of adding salt to foods for preservation has been well known for centuries. Related essays. She notes that the community is expanding in such areas as building design and structural development, science and technology development, population and economic dependency.
Second, it forces out most of the air above the food in the container. Ancient people learned to leave meat and fruits and vegetables in the sun and wind to remove moisture. This cycle was repeated with subsequent wars, but after World War II the dehydration industry thrived.
Suddenly everything becomes harder and seems to be more difficult.
Scientifically, one is required to know the components of a given food in order to be able to develop appropriate technologies, necessary for the processing, preservation, packaging, and distribution of food.
It has the ability to penetrate deeply into a food interacting with its atoms and molecules, and causing some chemical and biological effects that could possibly decrease its rate of decay.
In the freezing of meats various methods are used depending on the type of meat and the cut.
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