(PART 1) Introduction and History of Food Preservation Flashcards
Process of treating and handling food to slop or greatly slow down spoilage
Food Preservation
This prevents foodborne illnesses while maintaining nutritional value, texture, and flavor. One of the most important inseparable parts of human life. Produces the best possible foods over a long period of time with minimum loss of nutritive value.
Food Preservation
It increases the shelf-life of food products by applying various methods such as? (9 methods)
(1) Drying, (2) Storage in vinegar under acidic conditions, (3) Canning, (4) Freezing, (5) Fermenting, (6) Dry salting, (7) Curing, (8) Smoking, (9) Sealing
Promotes the loss of temperature sensitive compounds, denaturation of proteins, alteration of food structures, change of color and taste, and the formulation of undesirable substances.
Traditional Methods
Generally recognized as the earliest form of preservation
Salting
There are several intrinsic and extrinsic factors, the most important of which include (6 Factors)
(1) Water activity, (2) Temperature - low or high, (3) Preservatives, (4) Acidity, (5) Competitive microorganism, (6) Redox potential
The science that deals with the process of prevention of decay or spoilage of foods, thus allowing it to be stored in a fit condition for future use. The process in which the perishable food materials are given a suitable physical or chemical treatment to prevent wastage or spoilage and retain their nutritive value for long periods.
Food Preservation
The basic necessity of life and is invaluable for healthy existence of human beings. Most consists of agricultural and livestock products which are usually seasonal and spoil quickly.
Food
Gradually undergo deterioration or spoilage from the time they are harvested, caught, slaughtered, or manufactured unless it is preserved. Deterioration in some cases is accompanied by production of toxic substances. While other cases result in loss of nutritive value
Food
Advantages of Food Preservation
Increased shelf-life
Increased availability of convenience foods
Increased variety of foods
Decreased hazards from microbial pathogens
Decreased spoilage
Inactivation of anti-nutritional factors
Ensured year-round availability of seasonal foods
Perishable foods that can be transported to far distances
Produces different form of the products which are of great importance in various cuisines
They sun-cured buffalo meat
Native Americans
They cured and smoke meat, dried apples, and preserved fruit in honey
Ancient Mesopotamia (Iraq) - Akkadian Empire
Thy were likely the first to make cucumber pickles over 3,000 years ago
People in India
They pickled fish (catfish, salmon) and they even pickled a goose
Ancient Egyptians and Babylonians
People used vinegar for pickling proteins, from eggs to a variety of meats including rabbit, venison (deer), and goats
Ancient Chinese
This pinpoints the precise beginnings of human awareness of the presence and role of microorganisms in foods.
History of Food Preservation
Covers the time from human origin to over 1 million years ago up to 8,000 years ago. Humans were presumably carnivorous in this period. Foods were first cooked.
The Food-Gathering Period
Problems of spoilage and food poisoning were encountered early in this period. Problems of disease transmission by foods and of faster spoilage were caused by improper storage
The Food-Producing Period
Dates back from about 8,000 to 10,000 years ago, and includes present times.
The Food-Producing Period
Spoilage of prepared foods dated back from around?
600 B.C.
The first evidence of beer manufacture has been traced to (?) as far back as (?) BC
Ancient Babylonia; 7000
They are believed to have been the first great livestock breeders, dairymen, and were among the first to make butter
Sumerians of about 3000 B.C.
Milk, butter, and cheese were used by (?) as early as (?)
The Egyptians; 3000 B.C.
Between (?) BC and (?) BC, the (?) used salt from the Dead Sea in the preservation of various foods
3,000 B.C. And 12,000 B.C.; The Jews
They used salted fish in their diet, and the (?) are credited with passing this practice onto the (?), whose diets included pickled meats.
The Chinese and Greeks; Greeks; The Romans