Caloric

Calor gas, Calor propane The trade name for a liquified petroleum gas (LPG) sold in cylinders for domestic and industrial healing. Calor gas is the name used for commercial butane while commercial propane is sold as Calor propane. 

We shonld also utilize liquid hydrocarbons, which frequently accompany natural gas. These so-called natural gas liquids currently have little use besides their caloric heat value. They consist mainly of saturated straight hydrocarbons chains containing 3-6 carbon atoms, as well as some aromatics. As we found (Chapter 8), it is possible by superacidic catalytic treatment to upgrade these liquids to high-octane, commercially usable gasoline. Their use will not per se solve our long-... 

Rice is grown in more than 100 countries and on every continent except Antarctica. In the world economy rice is an extremely important food, second only to wheat in total world production, and its yield per hectare exceeds that of wheat (57). Rice is the main staple food for more than half of the world s population and it accounts for one-third to one-half of the daily caloric intake in many Asian countries. It is also the major source of protein for the masses of Asian people. In many African and South American countries rice is rapidly becoming the staple food for much of the population. 

The health-conscious trend toward development of fat replacements (see Eat replacers), reduced salt and MSG intake, and use of artificial sweeteners (qv) to reduce caloric intake has influenced the increase in spice usage. AH of these trends requite spices to compensate for flavor loss or to overcome a perceived or actual difference in flavor. 

Nonnutritive Sweeteners. Consumer desire to reduce caloric iatake and protect dental health has created an enormous market for nonnutritive sweeteners (qv). As of this writing there are only three nonnutritive sweeteners approved for use ia the United States. 

Starch [9005-25-8] the main reserve food of plants, constitutes two-thirds of the carbohydrate caloric intake of most humans but only 47% of... 

The above chemicals can be obtained by fermentation (qv) of other sugars. However, some compounds require sucrose as a unique feedstock. Examples are the polysaccharides dextran, alteman, andlevan, which are produced by specific strains of bacteria (48,54—56). Dextrans are used to make chromatographic separation media, and sulfated dextran derivatives are used as plasma extenders (41). Levans show promise as sweetness potentiators and, along with alteman, have potential as food thickeners and bulking agents in reduced-caloric foods (55,56) (see Carbohydrates). 

The rising incidence of obesity has not paralleled sucrose consumption. The FDA Task Force concluded that sugars have no unique role in obesity and that dietary fat rather than carbohydrate is a significant contributor to this condition (62,67,68). However, sugar can promote weight gain in individuals with life-styles marked by excess caloric intake and insufficient exercise. 

Nonnutritive sweeteners are potently sweet ia general and only minute quantities are required for sweetening foods. As such, foods containing nonnutritive sweeteners generate no or negligible calories from the sweeteners themselves, regardless of whether or not these sweeteners are caloric. 

HES containing 90% fmctose is used in low calorie or specialty foods because of its high sweetness and, therefore, reduced usage level and lower caloric value. Crystalline fmctose is essentially pure and used at a level that provides sweetness at a lower caloric level than other sweeteners (qv). Initial use was in diet and nutritious foods but appHcation has now been extended to many other food areas, such as powdered beverages, dry mix desserts, dairy products, and confections. 

Obesity is a difficult condition to treat. Dietary restriction of caloric intake is the first line therapy and is optimally combined with an exercise program to promote loss of fat relative to lean body mass (17). For the grossly obese (BMI > 40), invasive mechanical measures such as jaw wiring, gastric banding, and gastric by-pass have been attempted with at least limited success (18). 

J. L. Vetter, Caloric and Fat-Modified Bakery Products, MZB Technical Bulletin XIII, Issue 5, American Institute of Baking, 1991. 

A beer with normal alcohol content, but much lower ia caloric coateat, can be made with the help of external, specific enzymes that ate added duriag mashing or fermentation to achieve further breakdowa of carbohydrates. 

Fiber components are the principal energy source for colonic bacteria with a further contribution from digestive tract mucosal polysaccharides. Rate of fermentation varies with the chemical nature of the fiber components. Short-chain fatty acids generated by bacterial action are partiaUy absorbed through the colon waU and provide a supplementary energy source to the host. Therefore, dietary fiber is partiaUy caloric. The short-chain fatty acids also promote reabsorption of sodium and water from the colon and stimulate colonic blood flow and pancreatic secretions. Butyrate has added health benefits. Butyric acid is the preferred energy source for the colonocytes and has been shown to promote normal colonic epitheUal ceU differentiation. Butyric acid may inhibit colonic polyps and tumors. The relationships of intestinal microflora to health and disease have been reviewed (10). 

Glucose Isomeriza.tion, Enzymatic isomerization of glucose to fmctose provides a real alternative to sugar (sucrose) derived from sugarcane or sugarbeets. The commercial product obtained is known as high fmctose com symp (HECS). Two grades of the symp have become estabUshed on the world market, HECS-42 and HECS-55, which contain 42 and 55% fmctose on dry substance basis. These products account for over one-third of the caloric sweetener market ia the United States. 

This task can be avoided if a hydrocarbon stream is the limiting resistance by the use of the caloric temperature charts developed by Colburn [Ind. Eng. Chem., 25, 873 (1933)]. 

Assuming that the gas is thermally and calorically perfect cp, and 7 are constant) equation 7-1 can be rewritten as ... 

Until the beginning of the 19th century, it was thought that heat was an invisible substance called caloric. An object at a high temperature was thought to contain more caloric than one at a low temperature. However, British physicist Benjamin Thompson in 1798 and British chemist Sir Humphry Davy in 1799 presented... 

Calor Gas Limited, Coryton occupies a small site employing about 100 people to fill cylinders with LPG which is supplied by pipelines from both of the nearby refineries and stored in it.s seven tanks 350 tonnes total capacity. Large numbers of portable cylinders of all sizes, full and empty, are on the site totalling about 500 tonnes of LPG. These are transported by road gases are transported in tank trucks. 

LPG is a mixture of flammable hydrocarbons which are gas at normal temperature hut liquid under pressure or when cooled below the boiling point at atmospheric pressure. Two mixtures are in common use, commercial propane and commercial butane. Large quantities are stored and handled at British Gas Corporation methane terminal, Shell UK Oil, Mobil Oil Co. Ltd, and Calor t ias LiJ The last also fills and handles large numbers of portable LPG cylinders. 

Calor Gas Ltd. stores a small quantity of liquefied gas because it can be delivered readily hs pipelines from the neighboring oil refineries. The five tanks each storage about 60 tonnes capacity at ambient temperature. Three are tised for propane and two for butane. The total quantity of gas contained in filled cyl mders averages 500 tonnes. 

Gas Caloric Heating Cost Basis Evaluation for Liquids Recovery... 

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