History of Food Preservation Methods

  • Yasmine Dabash

The Sustainment of Foodstuffs Within the Years

Isn't it nice to go home and microwave a frozen TV dinner after an extended day of work? Minus the invention of food preserving technologies such as the refrigerator or the freezer, such could have never been possible. This is because both technology and science are interdependent using one another. Since ancient times, food has been preserved in a number of ways including refrigerating and heating, drying and salting, and canning and jarring. Within the centuries, the people has been equipped with superior knowledge thus enabling us to continually improve technology. It's quite common to see technology morph to adequately fit updated knowledge, A common exemplory case of this is cell phones which frequently update with more features in more condensed models. Food preservation today is the consequence of many hundreds of years' worth of work at the sustainment of foodstuffs.

Most mediocre households contain a refrigeration and freezer unit which is used daily to preserve foods for an allotment of your time. Refrigeration has an especially long history' for most centuries, people would carve large blocks of ice from local fresh water sources and put it iceboxes, that they used to keep their food cool. Right now in remote Amish-culture societies, people use this technique of refrigeration. Around once, people would store their produce in 30-40F root cellars. It wasn't until 1918 that the first Frigidaire was created then produced in higher quantities. Then twelve years later, the eco-friendly, Freon-less refrigerator model we used today, patented by Albert Einstein and a colleague, was introduced. (findingdulcinea. com) Twoother modes of food preservation which have a long history, primarily in hot climates of the world include drying and salting.

The ways of drying and salting to preserve fish, meat, and vegetables were been predominate in dry, hot climates (ie. the southern states of America) for hundreds of years. One of the most common means of curing meat is salting, which has been carried out since ancient times by packing meat in heavy amounts of salt in barrels; this technique of meat preservation had not been replaced before times of advanced freezing and refrigeration. Drying meat, another popular mode of meat curing, has a goal of simply evaporating the liquid content of the meat. It is because microorganisms desire a specific amount of moisture to survive in an environment, so by removing this particular content from the meat you are thus making the meat unlivable for the bacteria which in turn causes spoilage. (fao. org) This is also the same reason dried fruits (raisins, dried apricots, Craisins, etc. ) last a longer time than its fresh form. Food can be preserved for long-term storage through the techniques of canning and jarring.

By canning and jarring food you are sterilizing then inhibiting bacterial growth in the food, therefore lengthening the longevity of the food's shelf life probably. Usually vegetables and meats are packages in sealed tin cans rather than jarred; some common examples of canned foods are corn, tuna, processed beef, and soup. Jarring is also a ordinary way of conserving pickles, jams and jellies, baby food, and tomato sauce. Fermenting foods by storing them in a vinegar and salt brine in just a sterilized glass jar is named pickling. Pickling is an endeavor practiced to preserve mainly vegetables (mostly cucumbers). Unfortunately this method escalates the salt content and lowers the vitamin content of the foodstuffs preserved. Preservatives could times be added to foods to foods to make sure they are last longer.

Sometimes, when processing foods, preservatives are added to help conserve the meals by killing bacteria or slowing bacteria activity. These preservatives come in four major categories; benzoates, nitrites, sulfites, and sorbic acid. Sodium benzoate is a salt commonly coupled with acidic and carbonated products including juices, sodas, salad dressings, while others. Sodium nitrate, although controversial now, is a naturally occurring food preservative within salt, sugar, vinegar, and alcohol. Sulfites, although banned from fresh, raw eaten produce, is utilized when preserving dried fruits and dried potato products. Sorbic acid is the most used food preservative on the market as it is definitely the safest of the four common preservatives. It really is known to prevent the growth of fungi, yeast, and mold. Sometimes preservatives are dismissed and tied to america Food and Drug Administration (FDA) to improve the overall health of the foods, which is the number one concern as it pertains to food and food preservation. There are a number of organizations and universities that support and research into the study of food preservation.

The National Center for Home Food Preservation, based at the University of Georgia, generally focuses on the preservation of produce and what safety regulations and methods should be carried out to ensure safe, convenient preserved foods both domestically and industrially (nchfp. uga. edu). Even the most unexpected can donate to a cause; the United States Atomic Energy Commission majorly brought the rise to the utilization of irradiation to preserve food, specifically for NASA (The NationalAeronauticsandSpaceAdministration) astronauts to eat whilst in space. Though it may appear ridiculous, the Mayflower Trading company is the greatest web store for long-lasting, storable foods, emergency preparedness, and alternative power. It could seem to be like the go-to site for the impending zombie apocalypse but its contributions to the longevity of preserved foods (mainly canned) are remarkable. On the topic of contributions to the field of food preservation, there is a whole set of remarkable individuals who have majorly impacted food preservation as we realize it.

Many people have contributed to food preservation as will including the renowned Louis Pasteur. Louis Pasteur created the technique of pasteurization which ensures the sterility and safety of our milk and other dairy food right now. Nicolas Appert may as well be known as the 'Father of Jarring'. Nicolas Appert came up with the concept that by heating and sterilizing a product then inserting the substance in a sterilized, air-tight jar would make is long-lasting and sterile after ten years of experimentation in the hopes that he'd gain recognition by Napoleon for his works. Napoleon awarded Appert with a great deal of money for his findings and used this new knowledge to his advantage by sending sterilized, preserved foods with his armies. Another recent man to make his name in history for contributing to food preservation was Daniel Farkas, a former food scientist. Farkas discovered high-pressure preservation which kills bacteria and pathogens. This method of preserving food is also called pascalization and bridgemanization (oregonstate. edu).

Over time, methods of food preservation have improved vastly to conform to our modernized world. Now as part of your we're able to store foods for years after years without it going rancid. Plus, it I simple to use and effective, it is easy enough to store your meal in the refrigerator, whereas in the eighteenth century you'll hve to keep your food within an iebox outside of your house. Even so, Food producers should aim toward maintaining not only the meals itself but also its nutritional value. Most means of food preservation, such as pickling, salting, and freezing diminish the nutrition of the food you eat. A lot more fresh foods we consume, the closer we may become to optimum health; hopefully in years to come we are in a position to not only conserve food but also nutrients.

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