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75-562: The city is an industrial centre for lumber and paper, food processing , glass manufacturing, textiles, medical equipment production, and heavy industry , the last one represented by the Călărași steel works . The city is known colloquially as "Capșa provinciei" (the Capșa from the provinces). The site of a medieval village, called Lichirești from the time of Michael the Brave . Călărași appeared for

150-509: A 14,500-year-old Natufian site in Jordan's northeastern desert. Around 10,000 BC, with the dawn of the Neolithic age and the spread of agriculture, grains became the mainstay of making bread. Yeast spores are ubiquitous, including on the surface of cereal grains , so any dough left to rest leavens naturally. An early leavened bread was baked as early as 6000 BC in southern Mesopotamia, cradle of

225-453: A certain amount of applied force. Because air pockets within this gluten network result from carbon dioxide production during leavening, bread can be defined as a foam, or a gas-in-solid solution. Acrylamide , like in other starchy foods that have been heated higher than 120 °C (248 °F), has been found in recent years to occur in bread. Acrylamide is neurotoxic , has adverse effects on male reproduction and developmental toxicity and

300-408: A coarser bread crumb. Dough recipes commonly call for 500 grams (about 1.1 pounds) of flour, which yields a single loaf of bread or two baguettes . Calcium propionate is commonly added by commercial bakeries to retard the growth of molds. Flour is grain ground into a powder. Flour provides the primary structure, starch and protein to the final baked bread. The protein content of the flour

375-422: A few may cause problems for some individuals, including sulfites, artificial sweeteners, artificial colors and flavors, sodium nitrate, BHA and BHT, olestra, caffeine and monosodium glutamate — a flavor enhancer. When designing processes for the food industry the following performance parameters may be taken into account: Food processing industries and practices include the following: Bread Bread

450-447: A hermetic bottling technique that would preserve food for French troops which ultimately contributed to the development of tinning, and subsequently canning by Peter Durand in 1810. Although initially expensive and somewhat hazardous due to the lead used in cans, canned goods would later become a staple around the world. Pasteurization , discovered by Louis Pasteur in 1864, improved the quality and safety of preserved foods and introduced

525-490: A large profit potential exists for the manufacturers and suppliers of processed food products. Individuals may see a benefit in convenience , but rarely see any direct financial cost benefit in using processed food as compared to home preparation. Processed food freed people from the large amount of time involved in preparing and cooking "natural" unprocessed foods. The increase in free time allows people much more choice in life style than previously allowed. In many families

600-406: A loose-textured mixture composed of roughly equal amounts of flour and water (by weight); " biga ", a stiff mixture with a higher proportion of flour; and "pâte fermentée", which is a portion of dough reserved from a previous batch. Sourdough is a type of bread produced by a long fermentation of dough using naturally occurring yeasts and lactobacilli . It usually has a mildly sour taste because of

675-412: A special taste or texture. At one time, all yeast-leavened breads were sourdoughs. Recently there has been a revival of sourdough bread in artisan bakeries. Traditionally, peasant families throughout Europe baked on a fixed schedule, perhaps once a week. The starter was saved from the previous week's dough. The starter was mixed with the new ingredients, the dough was left to rise, and then a piece of it

750-452: A study published in " Food & Nutrition Research " in 2010, meaning more of their food energy content is retained within the body. Processed foods also tend to be more allergenic than whole foods, according to a June 2004 "Current Opinion in Allergy and Clinical Immunology" article. Although the preservatives and other food additives used in many processed foods are generally recognized as safe,

825-619: A study published in " The American Journal of Clinical Nutrition " in December 2007. Foods that have undergone processing, including some commercial baked goods, desserts, margarine, frozen pizza, microwave popcorn and coffee creamers, sometimes contain trans fats . This is the most unhealthy type of fat, and may increase risk for high cholesterol, heart disease and stroke. The 2010 Dietary Guidelines for Americans recommends keeping trans fat intake as low as possible. Processed foods may actually take less energy to digest than whole foods, according to

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900-657: A year average temperature of 11.3 °C (52 °F). The lowest temperature ever recorded in Călărași was −30.0 °C (−22 °F) on January 9, 1938, and the highest was 41.4 °C (107 °F) on August 10, 1957. At the 2021 census , Călărași had a population 58,211. In 2011, it had a population of 65,181, with 95.05% of them declaring themselves as being Romanians and 3.59% Roma . The surrounding communes ( Modelu , Ostrov , Roseți , Grădiștea , Cuza-Vodă , and Ștefan Vodă ) together with Călărași number almost 100,000 inhabitants. Food processing Food processing

975-565: Is carcinogenic . A study has found that more than 99 percent of the acrylamide in bread is found in the crust. A study by the University of Hohenheim found that industrially produced bread typically has a high proportion of FODMAP carbohydrates due to a short rising time (often only one hour). The high proportion of FODMAP carbohydrates in such bread then causes flatulence . This is particularly problematic in intestinal diseases such as irritable bowel syndrome . While in traditional bread making

1050-567: Is a staple food prepared from a dough of flour (usually wheat ) and water , usually by baking . Throughout recorded history and around the world, it has been an important part of many cultures' diet. It is one of the oldest human-made foods, having been of significance since the dawn of agriculture , and plays an essential role in both religious rituals and secular culture. Bread may be leavened by naturally occurring microbes (e.g. sourdough), chemicals (e.g. baking soda), industrially produced yeast , or high-pressure aeration, which creates

1125-461: Is a good source of carbohydrates and micronutrients such as magnesium, iron, selenium, and B vitamins. Whole grain bread is a good source of dietary fiber and all breads are a common source of protein in the diet, though not a rich one. Bread crust is formed from surface dough during the cooking process. It is hardened and browned through the Maillard reaction using the sugars and amino acids due to

1200-554: Is connected by National Roads DN3 , DN21 , DN31, and DN3B. Also A2 ("The Sun's Motorway") has 3 exits for Călărași, at Lehliu Gară (about 50 km (31 mi) NW), Dragalina (about 30 km (19 mi) N) and Fetești (about 40 km (25 mi) NE). The city lies on the seventh pan-European corridor of transport (the Danube river) and is next to the fourth pan-European transport corridor ( Dresden – Constanța ) at 26 km (16 mi). The Călărași train station serves

1275-593: Is leavened by Clostridium perfringens , one of the most common sources of food-borne illness. Aerated bread is leavened by carbon dioxide being forced into dough under pressure. From the mid-19th to mid-20th centuries, bread made this way was somewhat popular in the United Kingdom, made by the Aerated Bread Company and sold in its high-street tearooms . The company was founded in 1862, and ceased independent operations in 1955. The Pressure-Vacuum mixer

1350-518: Is made at home, in a small bakery, or in a large factory, is an example of secondary food processing. Fermenting fish and making wine , beer , and other alcoholic products are traditional forms of secondary food processing. Sausages are a common form of secondary processed meat, formed by comminution (grinding) of meat that has already undergone primary processing. Most of the secondary food processing methods known to humankind are commonly described as cooking methods . Tertiary food processing

1425-404: Is most commonly eaten with the hands, either by itself or as a carrier for other foods. Bread can be spread with butter , dipped into liquids such as gravy , olive oil , or soup ; it can be topped with various sweet and savory spreads, or used to make sandwiches containing meats , cheeses, vegetables, and condiments . Bread is used as an ingredient in other culinary preparations, such as

1500-1110: Is necessary to make most foods edible while secondary food processing turns ingredients into familiar foods, such as bread . Tertiary food processing results in ultra-processed foods and has been widely criticized for promoting overnutrition and obesity , containing too much sugar and salt , too little fiber , and otherwise being unhealthful in respect to dietary needs of humans and farm animals. Primary food processing turns agricultural products, such as raw wheat kernels or livestock, into something that can eventually be eaten. This category includes ingredients that are produced by ancient processes such as drying , threshing , winnowing and milling grain, shelling nuts , and butchering animals for meat. It also includes deboning and cutting meat, freezing and smoking fish and meat, extracting and filtering oils, canning food, preserving food through food irradiation , and candling eggs , as well as homogenizing and pasteurizing milk . Contamination and spoilage problems in primary food processing can lead to significant public health threats, as

1575-655: Is not necessary to limit the sugars found naturally in whole, unprocessed foods like fresh fruit, eating too much added sugar found in many processed foods increases the risk of heart disease, obesity, cavities and Type 2 diabetes. The American Heart Association recommends women limit added sugars to no more than 420 kilojoules (100 kilocalories), or 25 grams, and men limit added sugars to no more than 650 kJ (155 kcal), or about 38.75 grams, per day. Currently, Americans consume an average of 1,490 kJ (355 kcal) from added sugars each day. Processing foods often involves nutrient losses, which can make it harder to meet

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1650-459: Is one of the oldest prepared foods. Evidence from 30,000 years ago in Europe and Australia revealed starch residue on rocks used for pounding plants. It is possible that during this time, starch extract from the roots of plants, such as cattails and ferns , was spread on a flat rock, placed over a fire and cooked into a primitive form of flatbread . The oldest evidence of bread-making has been found in

1725-439: Is only truly possible on a wide scale because of food processing. Transportation of more exotic foods, as well as the elimination of much hard labor gives the modern eater easy access to a wide variety of food unimaginable to their ancestors. The act of processing can often improve the taste of food significantly. Mass production of food is much cheaper overall than individual production of meals from raw ingredients. Therefore,

1800-427: Is the best indicator of the quality of the bread dough and the finished bread. While bread can be made from all-purpose wheat flour, a specialty bread flour, containing more protein (12–14%), is recommended for high-quality bread. If one uses a flour with a lower protein content (9–11%) to produce bread, a shorter mixing time is required to develop gluten strength properly. An extended mixing time leads to oxidization of

1875-468: Is the commercial production of what is commonly called processed food . These are ready-to-eat or heat-and-serve foods, such as frozen meals and re-heated airline meals . Food processing dates back to the prehistoric ages when crude processing incorporated fermenting, sun drying, preserving with salt , and various types of cooking (such as roasting, smoking, steaming, and oven baking), Such basic food processing involved chemical enzymatic changes to

1950-418: Is the most important measurement in a bread recipe, as it affects texture and crumb the most. Hard wheat flours absorb about 62% water , while softer wheat flours absorb about 56%. Common table breads made from these doughs result in a finely textured, light bread. Most artisan bread formulas contain anywhere from 60 to 75% water. In yeast breads, the higher water percentages result in more CO 2 bubbles and

2025-494: Is the process of adding gas to a dough before or during baking to produce a lighter, more easily chewed bread. Most bread eaten in the West is leavened. A simple technique for leavening bread is the use of gas-producing chemicals. There are two common methods. The first is to use baking powder or a self-raising flour that includes baking powder. The second is to include an acidic ingredient such as buttermilk and add baking soda ;

2100-587: Is the transformation of agricultural products into food , or of one form of food into other forms. Food processing takes many forms, from grinding grain into raw flour , home cooking , and complex industrial methods used in the making of convenience foods . Some food processing methods play important roles in reducing food waste and improving food preservation , thus reducing the total environmental impact of agriculture and improving food security . The Nova classification groups food according to different food processing techniques. Primary food processing

2175-471: The Americas , Australia , and Southern Africa . This is in contrast to parts of South and East Asia, where rice or noodles are the staple. Bread is usually made from a wheat - flour dough that is cultured with yeast, allowed to rise, and baked in an oven . Carbon dioxide and ethanol vapors produced during yeast fermentation result in bread's air pockets. Owing to its high levels of gluten (which give

2250-520: The CFR Line 802 . The nearest major cities are: Bucharest 120 km (75 mi), Constanța 148 km (92 mi), and Varna 155 km (96 mi). The city features seven middle schools and several high schools, including The city is currently represented by Dunărea Călărași in the Romanian Liga III football league. Călărași is twinned with: The climate is continental with

2325-543: The Sumerian civilization, who may have passed on the knowledge to the Egyptians around 3000 BC. The Egyptians refined the process and started adding yeast to the flour . The Sumerians were already using ash to supplement the dough as it was baked. There were multiple sources of leavening available for early bread. Airborne yeasts could be harnessed by leaving uncooked dough exposed to air for some time before cooking. Pliny

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2400-564: The lactic acid produced during anaerobic fermentation by the lactobacilli. Longer fermented sourdoughs can also contain acetic acid , the main non-water component of vinegar. Sourdough breads are made with a sourdough starter. The starter cultivates yeast and lactobacilli in a mixture of flour and water, making use of the microorganisms already present on flour; it does not need any added yeast. A starter may be maintained indefinitely by regular additions of flour and water. Some bakers have starters many generations old, which are said to have

2475-530: The straight dough process , the sourdough process , the Chorleywood bread process and the sponge and dough process . Professional bread recipes are stated using the baker's percentage notation. The amount of flour is denoted to be 100%, and the other ingredients are expressed as a percentage of that amount by weight. Measurement by weight is more accurate and consistent than measurement by volume, particularly for dry ingredients. The proportion of water to flour

2550-502: The 20th century, automatic appliances like microwave oven , blender , and rotimatic paved way for convenience cooking . In western Europe and North America, the second half of the 20th century witnessed a rise in the pursuit of convenience. Food processing companies marketed their products especially towards middle-class working wives and mothers. Frozen foods (often credited to Clarence Birdseye ) found their success in sales of juice concentrates and " TV dinners ". Processors utilised

2625-513: The Elder reported that the Gauls and Iberians used the foam skimmed from beer , called barm , to produce "a lighter kind of bread than other peoples" such as barm cake . Parts of the ancient world that drank wine instead of beer used a paste composed of grape juice and flour that was allowed to begin fermenting, or wheat bran steeped in wine , as a source for yeast . The most common source of leavening

2700-554: The FODMAPs that cause discomfort can be broken down during a rising time of four hours. In the study, whole-grain yeast doughs were examined after different rising times; the highest level of FODMAPs was present after one hour in each case and decreased thereafter. The study thus shows that it is essentially the baking technique and not the type of grain that determines whether a bread is well tolerated or not. A better tolerance of bread made from original cereals can therefore not be explained by

2775-628: The adults are working away from home and therefore there is little time for the preparation of food based on fresh ingredients. The food industry offers products that fulfill many different needs: e.g. fully prepared ready meals that can be heated up in the microwave oven within a few minutes. Modern food processing also improves the quality of life for people with allergies, diabetics , and other people who cannot consume some common food elements. Food processing can also add extra nutrients such as vitamins . Processing of food can decrease its nutritional density. The amount of nutrients lost depends on

2850-581: The basic structure of food in its natural form, as well served to build a barrier against surface microbial activity that caused rapid decay. Salt-preservation was especially common for foods that constituted warrior and sailors' diets until the introduction of canning methods . Evidence for the existence of these methods can be found in the writings of the ancient Greek , Chaldean , Egyptian and Roman civilizations as well as archaeological evidence from Europe , North and South America and Asia. These tried and tested processing techniques remained essentially

2925-438: The body's needs if these nutrients are not added back through fortification or enrichment. For example, using high heat during processing can cause vitamin C losses. Another example is refined grains, which have less fiber, vitamins and minerals than whole grains. Eating refined grains, such as those found in many processed foods, instead of whole grains may increase the risk for high cholesterol , diabetes and obesity, according to

3000-405: The bread is baked in an oven . Many breads are made from a " straight dough ", which means that all of the ingredients are combined in one step, and the dough is baked after the rising time; others are made from a " pre-ferment " in which the leavening agent is combined with some of the flour and water a day or so ahead of baking and allowed to ferment overnight. On the day of baking, the rest of

3075-423: The crumb and the overall texture by stabilizing and strengthening the gluten. Some artisan bakers forego early addition of salt to the dough, whether wholemeal or refined, and wait until after a 20-minute rest to allow the dough to autolyse . Mixtures of salts are sometimes employed, such as employing potassium chloride to reduce the sodium level, and monosodium glutamate to give flavor ( umami ). Leavening

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3150-569: The development of gluten in breads by coating and lubricating the individual strands of protein. They also help to hold the structure together. If too much fat is included in a bread dough, the lubrication effect causes the protein structures to divide. A fat content of approximately 3% by weight is the concentration that produces the greatest leavening action. In addition to their effects on leavening, fats also serve to tenderize breads and preserve freshness. Bread improvers and dough conditioners are often used in producing commercial breads to reduce

3225-702: The dough is allowed to autolyse . Water, or some other liquid, is used to form the flour into a paste or dough. The weight or ratio of liquid required varies between recipes, but a ratio of three parts liquid to five parts flour is common for yeast breads. Recipes that use steam as the primary leavening method may have a liquid content in excess of one part liquid to one part flour. Instead of water, recipes may use liquids such as milk or other dairy products (including buttermilk or yogurt ), fruit juice, or eggs. These contribute additional sweeteners, fats, or leavening components, as well as water. Fats, such as butter, vegetable oils, lard, or that contained in eggs, affect

3300-407: The dough rises for several hours, industrial breads rise for a much shorter time, usually only one hour. However, a sufficiently long rising time is important to break down the indigestible FODMAP carbohydrates. Some flours (for example, spelt , emmer and einkorn ) contain fewer FODMAPs, but the difference between grain types is relatively small (between 1 and 2 percent by weight ). Instead, 90% of

3375-459: The dough sponginess and elasticity), common or bread wheat is the most common grain used for the preparation of bread, which makes the largest single contribution to the world's food supply of any food. Bread is also made from the flour of other wheat species (including spelt , emmer , einkorn and kamut ). Non-wheat cereals including rye , barley , maize (corn), oats , sorghum , millet and rice have been used to make bread, but, with

3450-425: The dough, which gives the finished product a whiter crumb, instead of the cream color preferred by most artisan bakers. Wheat flour, in addition to its starch, contains three water-soluble protein groups ( albumin , globulin , and proteoses ) and two water-insoluble protein groups ( glutenin and gliadin ). When flour is mixed with water, the water-soluble proteins dissolve, leaving the glutenin and gliadin to form

3525-497: The elements (alongside wine ) of the Eucharist , and in other religions including Paganism . In many cultures , bread is a metaphor for basic necessities and living conditions in general. For example, a "bread-winner" is a household's main economic contributor and has little to do with actual bread-provision. This is also seen in the phrase "putting bread on the table". The Roman poet Juvenal satirized superficial politicians and

3600-535: The exception of rye, usually in combination with wheat flour as they have less gluten. Gluten-free breads are made using flours from a variety of ingredients such as almonds, rice, sorghum, corn, legumes such as beans, and tubers such as cassava. Since these foods lack gluten, dough made from them may not hold its shape as the loaves rise, and their crumb may be dense with little aeration. Additives such as xanthan gum , guar gum , hydroxypropyl methylcellulose (HPMC), corn starch , or eggs are used to compensate for

3675-506: The first time in 1700 on a map drawn by Constantin Cantacuzino . It got its name after it was made by the Wallachian princes , in the 17th century, a station of "mounted couriers' service" on the route from Bucharest to Constantinople . The service was operated by horseback riders (the călărași ). It expanded into a small town, and in 1834 became the surrounding county's capital. Călărași

3750-490: The food and processing method. For example, heat destroys vitamin C . Therefore, canned fruits possess less vitamin C than their fresh alternatives. The USDA conducted a study of nutrient retention in 2004, creating a table of foods, levels of preparation, and nutrition. New research highlighting the importance to human health of a rich microbial environment in the intestine indicates that abundant food processing (not fermentation of foods) endangers that environment. One of

3825-482: The gas bubbles that fluff up bread. In many countries, commercial bread often contains additives to improve flavor, texture, color, shelf life, nutrition, and ease of production. The Old English word for bread was hlaf ( hlaifs in Gothic : modern English loaf ) which appears to be the oldest Teutonic name. Old High German hleib and modern German Laib derive from this Proto-Germanic word, which

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3900-510: The ingredients are added, and the process continues as with straight dough. This produces a more flavorful bread with better texture. Many bakers see the starter method as a compromise between the reliable results of baker's yeast and the flavor and complexity of a longer fermentation. It also allows the baker to use only a minimal amount of baker's yeast, which was scarce and expensive when it first became available. Most yeasted pre-ferments fall into one of three categories: " poolish " or "pouliche",

3975-1000: The intense heat at the bread surface. The crust of most breads is harder, and more complexly and intensely flavored, than the rest. Old wives' tales suggest that eating the bread crust makes a person's hair curlier. Additionally, the crust is rumored to be healthier than the remainder of the bread. Some studies have shown that this is true as the crust has more dietary fiber and antioxidants such as pronyl - lysine . Doughs are usually baked , but in some cuisines breads are steamed (e.g., mantou ), fried (e.g., puri ), or baked on an unoiled frying pan (e.g., tortillas ). It may be leavened or unleavened (e.g. matzo ). Salt , fat and leavening agents such as yeast and baking soda are common ingredients, though bread may contain other ingredients, such as milk , egg , sugar , spice , fruit (such as raisins ), vegetables (such as onion ), nuts (such as walnut ) or seeds (such as poppy ). Methods of processing dough into bread include

4050-552: The lack of gluten. In wheat , phenolic compounds are mainly found in hulls in the form of insoluble bound ferulic acid , where it is relevant to wheat resistance to fungal diseases. Rye bread contains phenolic acids and ferulic acid dehydrodimers . Three natural phenolic glucosides, secoisolariciresinol diglucoside , p-coumaric acid glucoside and ferulic acid glucoside , can be found in commercial breads containing flaxseed . Glutenin and gliadin are functional proteins found in wheat bread that contribute to

4125-472: The main sources for sodium in the diet is processed foods. Sodium, mostly in the form of sodium chloride , i.e. salt, is added to prevent spoilage, add flavor and enhance the texture of these foods. Americans consume an average of 3436 milligrams of sodium per day, which is higher than the recommended limit of 2300 milligrams per day for healthy people, and more than twice the limit of 1500 milligrams per day for those at increased risk for heart disease. While it

4200-486: The original cereal itself, but rather by the fact that traditional, artisanal baking techniques are generally used when baking original cereals, which include a long dough process. The study also showed that a long rising time also breaks down undesirable phytates more effectively, flavors develop better, and the finished bread contains more biologically accessible trace elements . Bread can be served at many temperatures ; once baked, it can subsequently be toasted . It

4275-781: The perceived value of time to appeal to the postwar population, and this same appeal contributes to the success of convenience foods today. Benefits of food processing include toxin removal, preservation, easing marketing and distribution tasks, and increasing food consistency. In addition, it increases yearly availability of many foods, enables transportation of delicate perishable foods across long distances and makes many kinds of foods safe to eat by de-activating spoilage and pathogenic micro-organisms. Modern supermarkets would not exist without modern food processing techniques, and long voyages would not be possible. Processed foods are usually less susceptible to early spoilage than fresh foods and are better suited for long-distance transportation from

4350-739: The public as caring only for " panem et circenses " ( bread and circuses ). In Russia in 1917, the Bolsheviks promised "peace, land, and bread." The term " breadbasket " denotes an agriculturally productive region. In parts of Northern , Central , Southern and Eastern Europe bread and salt is offered as a welcome to guests. In India , life's basic necessities are often referred to as "roti, kapra aur makan" (bread, clothes, and house). Words for bread, including "dough" and "bread" itself, are used in English -speaking countries as synonyms for money . A remarkable or revolutionary innovation may be called

4425-463: The reaction of the acid with the soda produces gas. Chemically leavened breads are called quick breads and soda breads . This method is commonly used to make muffins , pancakes , American-style biscuits , and quick breads such as banana bread . Many breads are leavened by yeast . The yeast most commonly used for leavening bread is Saccharomyces cerevisiae , the same species used for brewing alcoholic beverages. This yeast ferments some of

4500-496: The resulting foods are used so widely. However, many forms of processing contribute to improved food safety and longer shelf life before the food spoils. Commercial food processing uses control systems such as hazard analysis and critical control points (HACCP) and failure mode and effects analysis (FMEA) to reduce the risk of harm. Secondary food processing is the everyday process of creating food from ingredients that are ready to use. Baking bread , regardless of whether it

4575-412: The same pattern. Water is mixed with flour, salt and the leavening agent. Other additions (spices, herbs, fats, seeds, fruit, etc.) are not needed to bake bread, but are often used. The mixed dough is then allowed to rise one or more times (a longer rising time results in more flavor, so bakers often "punch down" the dough and let it rise again), loaves are formed, and (after an optional final rising time)

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4650-515: The same until the advent of the Industrial Revolution . Examples of ready-meals also date back to before the preindustrial revolution, and include dishes such as Cornish pasty and Haggis . Both during ancient times and today in modern society these are considered processed foods. Modern food processing technology developed in the 19th and 20th centuries was developed in a large part to serve military needs. In 1809, Nicolas Appert invented

4725-491: The source to the consumer . When they were first introduced, some processed foods helped to alleviate food shortages and improved the overall nutrition of populations as it made many new foods available to the masses. Processing can also reduce the incidence of food-borne disease. Fresh materials, such as fresh produce and raw meats, are more likely to harbour pathogenic micro-organisms (e.g. Salmonella) capable of causing serious illnesses. The extremely varied modern diet

4800-547: The structure of bread. Glutenin forms interconnected gluten networks within bread through interchain disulfide bonds. Gliadin binds weakly to the gluten network established by glutenin via intrachain disulfide bonds. Structurally, bread can be defined as an elastic-plastic foam (same as styrofoam ). The glutenin protein contributes to its elastic nature, as it is able to regain its initial shape after deformation. The gliadin protein contributes to its plastic nature, because it demonstrates non-reversible structural change after

4875-415: The structure of the resulting bread. When relatively dry dough is worked by kneading , or wet dough is allowed to rise for a long time (see no-knead bread ), the glutenin forms strands of long, thin, chainlike molecules, while the shorter gliadin forms bridges between the strands of glutenin. The resulting networks of strands produced by these two proteins are known as gluten . Gluten development improves if

4950-445: The sugars producing carbon dioxide . Commercial bakers often leaven their dough with commercially produced baker's yeast . Baker's yeast has the advantage of producing uniform, quick, and reliable results, because it is obtained from a pure culture . Many artisan bakers produce their own yeast with a growth culture. If kept in the right conditions, it provides leavening for many years. The baker's yeast and sourdough methods follow

5025-472: The time needed for rising and to improve texture and volume and to give antistaling effects. The substances used may be oxidising agents to strengthen the dough or reducing agents to develop gluten and reduce mixing time, emulsifiers to strengthen the dough or to provide other properties such as making slicing easier, or enzymes to increase gas production. Salt ( sodium chloride ) is very often added to enhance flavor and restrict yeast activity. It also affects

5100-621: The time taken to produce a loaf. The process, whose high-energy mixing allows for the use of grain with a lower protein content, is now widely used around the world in large factories. As a result, bread can be produced very quickly and at low costs to the manufacturer and the consumer. However, there has been some criticism of the effect on nutritional value. Bread is the staple food of the Middle East , Central Asia , North Africa , Europe , and in European-derived cultures such as those in

5175-435: The use of breadcrumbs to provide crunchy crusts or thicken sauces; toasted cubes of bread, called croutons , are used as a salad topping; seasoned bread is used as stuffing inside roasted turkey; sweet or savoury bread puddings are made with bread and various liquids; egg and milk-soaked bread is fried as French toast ; and bread is used as a binding agent in sausages , meatballs and other ground meat products. Bread

5250-448: The water from the inner surface of the bubbles within the dough. The steam expands and makes the bread rise. This is the main factor in the rising of bread once it has been put in the oven. CO 2 generation, on its own, is too small to account for the rise. Heat kills bacteria or yeast at an early stage, so the CO 2 generation is stopped. Salt-rising bread does not use yeast. Instead, it

5325-558: The wine, beer, and milk preservation. In the 20th century, World War II , the space race and the rising consumer society in developed countries contributed to the growth of food processing with such advances as spray drying , evaporation , juice concentrates, freeze drying and the introduction of artificial sweeteners, colouring agents, and such preservatives as sodium benzoate . In the late 20th century, products such as dried instant soups, reconstituted fruits and juices, and self cooking meals such as MRE food ration were developed. By

5400-508: Was borrowed into some Slavic ( Czech : chléb , Polish : bochen chleba , Russian : khleb ) and Finnic ( Finnish : leipä , Estonian : leib ) languages as well. The Middle and Modern English word bread appears in other Germanic languages , such as West Frisian : brea , Dutch : brood , German : Brot , Swedish : bröd , and Norwegian and Danish : brød ; it may be related to brew or perhaps to break , originally meaning "broken piece", "morsel". Bread

5475-521: Was later developed by the Flour Milling and Baking Research Association for the Chorleywood bread process . It manipulates the gas bubble size and optionally the composition of gases in the dough via the gas applied to the headspace. Bread has a significance beyond mere nutrition in many cultures because of its history and contemporary importance. Bread is also significant in Christianity as one of

5550-499: Was saved to be the starter for next week's bread. The rapid expansion of steam produced during baking leavens the bread, which is as simple as it is unpredictable. Steam-leavening is unpredictable since the steam is not produced until the bread is baked. Steam leavening happens regardless of the raising agents (baking soda, yeast, baking powder, sour dough, beaten egg white) included in the mix. The leavening agent either contains air bubbles or generates carbon dioxide. The heat vaporises

5625-408: Was to retain a piece of dough from the previous day to use as a form of sourdough starter , as Pliny also reported. The ancient Egyptians, Greeks, and Romans all considered the degree of refinement in the bakery arts as a sign of civilization. The Chorleywood bread process was developed in 1961; it uses the intense mechanical working of dough to dramatically reduce the fermentation period and

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