Showing posts with label source. Show all posts
Showing posts with label source. Show all posts

Saturday, April 14, 2012

Food sources of molybdenum

Molybdenum s essential to both plants and animals. It is a lesser known trace mineral.

In human molybdenum is part of a complex called molybdenum cofactor, which is required for the three enzymes sulfite oxidase –involved in sulfur containing amino acid metabolism, aldehydes oxidase – catalyses the conversion of aldehydes into acids, and xanthine oxidase –participates in purine- uric acid compound- metabolism.

Molybdenum can protect against tooth decay and it plays an important role in and nitrogen metabolism. Molybdenum is found mainly in plant products such as cereals, whole grains and legumes.

Organ meat such as liver and kidney also are fairly rich sources, but other meats tend to be poor sources.

Milk and other diary products are good source of molybdenum. As the molybdenum content of plants depends on the soil molybdenum content and other environmental conditions, the molybdenum content of foods can vary considerably.

Foods that have vitamin C must contain molybdenum to activate the vitamin C.
Food sources of molybdenum

Saturday, February 11, 2012

Food sources of magnesium

Magnesium is require by seven key enzymes for glycolysis pathway. Magnesium also participates in muscle contraction and blood clotting.

Magnesium supports the heart, increases brainpower, causes strong peristalsis, and also help build storing bones.

Magnesium is available in many foods. However, most people in the United States probably do not get as much magnesium as they should from their diet.

Magnesium is ubiquitous in foods. This mineral enters human diet mostly from plants. Whole grains, many vegetables, legumes, tofu, and some seafood are good sources, and chocolate contains modest amounts.

Foods with highest magnesium content include milk and other dairy products, meats, seafood, and blackstrap molasses.

Beverages rich in magnesium are coffee, tea and cocoa. Cocoa seems to be the number one source of magnesium.

Magnesium also can be found in whole unprocessed foods in the diet. However, different methods for calculating amounts of magnesium in foods have often lead to conflicting results.
Food sources of magnesium

Friday, July 01, 2011

Sources of Manganese

The largest quantities of manganese are found in avocados, nuts and seeds, seaweeds and whole grains.

Refined grains are a poor source of manganese, as milling removes 73 percent of the manganese content and the enrichment process does not put it back.

Manganese may also be found in blueberries, egg yolks, legumes, dried peas, pineapples and green leafy vegetables.

Vegetable products contribute almost 75 percent of the manganese consumed by the average adult human male.

Meat, dairy products, poultry, fish and refined foods are poor sources: they contain little manganese.

Herbs that contain manganese include alfalfa, burdock root, catnip, chamomile, chickweed, dandelion, eyebright, fennel seed, fenugreek, ginseng, hops, horsetail, lemongrass, mullein, parsley, peppermint, raspberry, red clover, rosehips, wild yam, yarrow and yellow dock.

Other sources included tea and coffee. Some estimates suggest that coffee or tea supplies as much as 20 to 30 percent of our daily manganese intake.
Sources of Manganese

Saturday, March 26, 2011

Sources of Vitamin D

Diet is not a major source of vitamin D. Perfectly reasonably and well balanced diet may not supply the amount required to prevent deficiency.

Some food items that naturally contain small amounts of vitamin D include oil fish such as salmon, mackerel and blue fish. Cod liver oil is the best source of vitamin D.

The two basic substances with vitamin D activity D2 and D3, occur only in yeast and fish liver oils.

Vitamin D is also present in small quantities in vegetables, meat and egg yolk.

The main food source are those to which crystalline vitamin D has been added. Milk, because it is commonly used, has prove to be the most practical carrier.

The most efficient source of the vitamin is not a food at all, but exposure to sunlight, which transforms a related pro-vitamin substance in the skin into a substance which the kidney can change into active vitamin D.

Sunlight, in the form of ultraviolet-B radiation, providing 90-100% of the requirement for most people who are exposed to adequate sunlight.

Like other fat soluble vitamins, the sunlight activated pro-vitamin D can be stored away in the liver.

Vitamin D can also be obtained from nutritional supplements, For example, multivitamin supplements typically contain 400 IU vitamin D and pharmaceutical preparations can contain as much as 50,000 IU vitamin D per capsule/tablet.
Sources of Vitamin D

Sunday, January 30, 2011

Starch in food diet

Starch are by far the most significant polysaccharide in the diet. They are are found in grains, legumes and other vegetables and some fruits in minute amounts.

It is the most important dietary carbohydrate worldwide.

Starch made up of glucose until linked together to form long chains. It is one of the most abundant storage polysaccharides in plants and at the same time the most important energy source in human and animal nutrition.

After cooking starch is highly digestible by human beings, raw starch often resists digestion.

The number of glucose molecules joined in a single starch molecule varies from five hundreds to several hundred thousand, depending on the type of starch.

Starch is the storage form of energy for plants. However to use it for humans, either as structuring compound in foods or for technical application, as it does not provide all the desired properties.

They breakdown slowly and supply energy over as longer period of time. For starch to be used more promptly by the body, the outer membrane can be broken down by grinding or cooking.

Two types of starch molecules exist-amylose and amylopectin. Amylose averages 20 to 30 percent of the total amount of starch in most native starches.

Amylopectin is a branched chain polymers. Amylose consists of linear chain polymers.

Different plants have different relative amounts of amylose and amylopectin. These different proportions of the two types of starch within the starch grains of the pant five each starch its characteristics properties in cooking and gel formation.

In food starches are used to increase viscosity or to form gels. Because starch is insoluble in water, a mixture of starch with forms a suspension.

Thermal processing can change the physiochemical properties of starch, therefore it can affect s the texture of food products, characterization of aqueous starch suspension behavior and its interaction with other food additives.

Many cooks use starch for such diverse properties as thickening gravies and soups, making a sweet pudding or dusting pastry before cooking.

The major food sources of starch include grains in the form of cereal, pasta, crackers, bread and other baked goods.

Starch is used to produce food extenders and sugars syrups such as maltodextrins, glucose, dextrose, fructose, maltose and hydrogenated derivatives.
Starch in food diet

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