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Cranberries



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Cranberries
dex Offline
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Cranberries

Cranberries are low, creeping shrubs up to 10 cm tall (often less), with slender, wiry stems, not thickly woody, and small leaves. They have dark pink flowers, with very distinct petals, leaving the style and stamens fully exposed and pointing forward. The berry is the fruit that is larger than the leaves of the plant; it is initially white, but turns a deep red when fully ripe. Its taste is acidic and is edible, with an taste that can overwhelm its sweetness.
The name cranberry probably derives from their being a favourite food of a bird, the Crane, though some sources claim the name comes from "'craneberry' because before the flower expands, its stem, calyx, and petals resembled the neck, head, and bill of a crane". Another name, used in northeastern Canada, is mossberry.

Cranberry beds are constructed in upland areas that have a shallow water table. The topsoil is scraped off to form dikes around the bed perimeter. Clean sand is hauled in to a depth of four to eight inches. The surface is laser leveled with a slight crown in the center to facilitate drainage. Beds are frequently drained with tile in addition to the perimeter ditch. In addition to making it possible to hold water, the dikes allow equipment to service the beds without driving on the vines.

Cranberry vines are propagated by mowing vines from an established bed. The vines are spread on the surface of the sand of the new bed and pushed into the sand with a blunt disk. The vines are watered frequently during the first few weeks until roots form and new shoots grow. Beds are given frequent light application of nitrogen fertilizer during the first year.

A common misconception about cranberry production is that the beds remain flooded throughout the year. During the growing season cranberry beds are not flooded, but are irrigated regularly to maintain soil moisture. Beds are flooded in the fall to facilitate harvest and again during the winter to protect against low temperatures. In cold climates like Wisconsin and Massachusetts the winter flood typically freezes into ice while in warmer climates the water remains liquid. When ice forms on the beds trucks can be driven onto the ice to spread a thin layer of sand that helps to control pests and to rejuvenate the vines. Sanding is done every three to five years.

Cranberries are harvested in the fall when the fruit takes on its distinctive deep red color. This is usually in late September and into October. To harvest cranberries the beds are flooded with six to eight inches of water. A harvester is driven through the beds to remove the fruit from the vines. For the past 50 years water reel type harvesters have been used. In 2005 a new type harvester was introduced that does less vine damage and takes less time. Harvested cranberries float in the water and can be corraled into a corner of the bed and conveyed or pumped from the bed. From the farm cranberries are taken to receiving stations where they are cleaned, sorted, and stored prior to packaging or processing.

About 95% of cranberries are processed into products such as juice, sauce, and sweetened dried cranberries. The remaining 5% is sold fresh to consumers. Cranberries destined to processing are usually frozen in bulk containers shortly after arriving at a receiving station. Cranberries for fresh market are stored in shallow bins or boxes with perforated bottoms to allow air movement and to prevent decay. Because harvest occurs in late fall cranberries for fresh market are frequently stored in thick walled barns without mechanical refrigeration. Temperatures are regulated by opening and closing vents in the barn as needed.

Cranberry juice, usually sweetened to reduce its natural severe tartness and make "cranberry juice "cocktail" or blended with other fruit juices, is a major use of cranberries.

Remember - Great Oak trees from little acorns grow
11-21-2006 03:18 PM
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neandethal Offline
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RE: Cranberries

This site has some fascinating information on the health benefits of cranberries-

http://www.cranberryinstitute.org/healthresearch.htm
Quote:Anti-cancer - In 1996 laboratory studies conducted by University of Illinois scientists and published in Planta Medica demonstrated the potential anticarcinogenic properties of cranberries. More recently researchers at the University of Western Ontario demonstrated, using an animal model, that human breast cancer cells showed significantly lower incidence of tumor development when the experimental group's diet was supplemented with cranberries. Although these results are very preliminary, compounds in cranberries may prove to be a potent cancer fighter.

Anti-aging - Using an animal model James Joseph, Ph.D. and Barbara Shukitt-Hale Ph.D. have been experimenting with cranberries and their ability to protect brain cells from free radical damage and subsequent motor and cognitive function losses. Rats feed diets supplemented with cranberries are put through a series of tests to evaluate their neural function compared to a control group. Preliminary results indicate that there will be compelling evidence that cranberry can help protect the brain from neurological damage (unpublished results).

Dental - Critical Reviews in Food Science and Nutrition (2002) reported on a preliminary clinical trial using a mouthwash containing cranberry NDM. Saliva samples of the experimental group showed a two order of magnitude reduction in Streptococcus mutans colony forming units compared with the placebo group (unpublished data). A large percentage of dental caries (cavities) can be attributed to S. mutans.

Heart - Flavonoids have been shown to function as potent antioxidants both in vitro and in vivo and may reduce the risk of atherosclerosis. Cranberries contain significant amounts of flavonoids and polyphenolic compounds that have been demonstrated to inhibit low density lipoprotein oxidation. Ongoing research continues to suggest that cranberries may offer a natural defense against atherosclerosis.

Ulcers - Peptic ulcers are increasingly being attributed to infection by Helicobacter pylori bacteria, as opposed to stress and/or stomach acidity. A high-molecular-weight nondialysable constituent of cranberry juice has been shown to inhibit the adhesion of H. pylori to human gastric mucus in vitro. These preliminary results suggest that cranberry may be beneficial in the prevention of peptic ulcers through the inhibition of H. pylori adhesion to gastric mucus and stomach epithelium.
11-22-2006 06:42 PM
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trueblue Offline
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Post: #3
RE: Cranberries

The only thing to watch with cranberries is that they can interact with warfarin, a drug used for blood clot prevention, according to some in the medical field. It seems the warfarin is less effective when taking in cranberry juice or products.
11-22-2006 06:49 PM
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