A Fruit A Day.

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prasanna
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A Fruit A Day.

Post by prasanna » Sat Oct 18, 2008 6:20 pm

Pears Pears

Juicy and sweet, with a soft, buttery yet somewhat grainy texture, the white to cream-colored flesh of pears was once referred to as the "gift of the gods". Although the season for pears runs from August through October, there is a variety of pear available year-round because of the seasonal variations amongst the different varieties

Pears are members of the rose family and related to the apple and the quince. Pears generally have a large round bottom that tapers towards the top. Depending upon the variety, their paper-thin skins can either be yellow, green, brown, red or a combination of two or more of these colors. Like apples, pears have a core that features several seeds.

Food Chart
This chart graphically details the %DV that a serving of Pears provides for each of the nutrients of which it is a good, very good, or excellent source according to our Food Rating System. Additional information about the amount of these nutrients provided by Pears can be found in the Food Rating System Chart. A link that takes you to the In-Depth Nutritional Profile for Pears, featuring information over 80 nutrients, can be found under the Food Rating System Chart.


Health Benefits

Protection from Free Radicals

Our food ranking system also qualified pears as a good source of vitamin C and copper. Both of these nutrients can be thought of as antioxidant nutrients that help protect cells in the body from oxygen-related damage due to free radicals. Vitamin C functions as an antioxidant in all water-soluble areas of the body, and in addition to its antioxidant activity, is critical for good immune function. Vitamin C stimulates white cells to fight infection, directly kills many bacteria and viruses, and regenerates Vitamin E (an antioxidant that protects fat-soluble areas of the body) after it has been inactivated by disarming free radicals.

Copper helps protect the body from free radical damage as a necessary component of superoxide dismutase (SOD), a copper-dependent enzyme that eliminates superoxide radicals. Superoxide radicals are a type of free radical generated during normal metabolism, as well as when white blood cells attack invading bacteria and viruses. If not eliminated quickly, superoxide radicals damage cell membranes.

Treat your tastebuds to a delectable, juicy pear, and you'll be treating your body to 11.1% of the daily value for vitamin C along with 9.5% of the daily value for copper.

Pears Promote Cardiovascular and Colon Health

Pear's fiber does a lot more than help prevent constipation and ensure regularity. Fiber has been shown in a number of studies to lower high cholesterol levels, good news to people at risk for atherosclerosis or diabetic heart disease. Fiber in the colon binds to bile salts and carries them out of the body. Since bile salts are made from cholesterol, the body must break down more cholesterol to make more bile, a substance that is also necessary for digestion. The end result is a lowering of cholesterol levels.

Fiber also binds to cancer-causing chemicals in the colon, preventing them from damaging colon cells. This may be one reason why diets high in fiber-rich foods, such as pears, are associated with a reduced risk of colon cancer. Additionally, the fact that low dietary intake of copper seems to also associated with risk factors for colon cancer (increased fecal free radical production and fecal water alkaline phosphatase activity) serves as yet another reason in support of why this delicious fruit may be very beneficial for colonic health.

Fruit and Cereal Fiber Protective against Postmenopausal Breast Cancer

Results of a prospective study involving 51,823 postmenopausal women for an average of 8.3 years showed a 34% reduction in breast cancer risk for those consuming the most fruit fiber compared to those consuming the least. In addition, in the subgroup of women who had ever used hormone replacement, those consuming the most fiber, especially cereal fiber, had a 50% reduction in their risk of breast cancer compared to those consuming the least. Int J Cancer. 2008 Jan 15;122(2):403-12.

Fruits richest in fiber include apples, dates, figs, pears and prunes. When choosing a high fiber cereal, look for whole grain cereals as they supply the most bran (a mere 1/3rd cup of bran contains about 14 grams of fiber).

A Hypo-Allergenic Fruit

Although not well documented in scientific research, pears are often recommended by health care practitioners as a hypoallergenic fruit that is less likely to produce an adverse response than other fruits. Particularly in the introduction of first fruits to infants, pear is often recommended as a safe way to start.

Protection against Macular Degeneration

Your mother may have told you carrots would keep your eyes bright as a child, but as an adult, it looks like fruit is even more important for keeping your sight. Data reported in a study published in the Archives of Ophthalmology indicates that eating 3 or more servings of fruit per day may lower your risk of age-related macular degeneration (ARMD), the primary cause of vision loss in older adults, by 36%, compared to persons who consume less than 1.5 servings of fruit daily.

In this study, which involved over 110,000 women and men, researchers evaluated the effect of study participants' consumption of fruits; vegetables; the antioxidant vitamins A, C, and E; and carotenoids on the development of early ARMD or neovascular ARMD, a more severe form of the illness associated with vision loss. While, surprisingly, intakes of vegetables, antioxidant vitamins and carotenoids were not strongly related to incidence of either form of ARM, fruit intake was definitely protective against the severe form of this vision-destroying disease. Three servings of fruit may sound like a lot to eat each day, but pears can help you reach this goal. Add sliced pears to your morning cereal, lunch time yogurt or green salads. For an elegant meal, decorate any broiled fish with slices of pear.
prasanna

LEAD, KINDLY LIGHT. LOVE IS GOD, LOVE IS OCEAN, " Love Is Eternal. " LIVE TO LOVE TO LIVE.

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prasanna
Posts: 4397
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Location: DUBAI, Los Angeles, Chennai

More about Pears

Post by prasanna » Sat Oct 18, 2008 6:28 pm

Description

Pears are delicious fruits that are related to the apple and the quince. While there are thousands of varieties of pears with each differing in size, shape, color, taste and storage qualities, the Bosc, Bartlett, Anjou and Comice pears are the most commonly available types in the United States. Varieties such as Conference, Passe Crassane and Packham, which are popular in other countries, are also becoming more widely available.

Pears generally have a large round bottom that tapers towards the top. Depending upon the variety, their paper-thin skins can either be yellow, green, brown, red or a combination of two or more of these colors. The white to cream-colored flesh of pears is very juicy and sweet, while their textures are soft and buttery, yet slightly grainy. Like apples, pears have a core that features several seeds.

The scientific name for pear is Pyrus communis.

History

While the cultivation of pears has been traced back in western Asia for three thousand years, there is also some speculation that its history goes back even further and that this marvelous fruit was discovered by people in the Stone Age. Whatever their origins, pears have been revered throughout time. Called the "gift of the gods" by Homer in his epic, The Odyssey, pears were also a luxurious item in the court of Louis XIV. The early colonists brought pears to America, and while the first pear tree was planted in 1620, much of their pear supply was still imported from France. Like many other fruit trees, pears were introduced into California and Mexico by missionaries who planted them in their mission gardens.

Interestingly, with all of the respect that pears commanded, until the 18th century they did not have the soft juicy flesh that we now know them to possess. It was during this time that a lot of attention was given to the cultivation and breeding of pears, and many varieties were developed that featured pears' distinctive buttery texture and sweet taste. Today, much of the world's pear supply is grown in China, Italy and the United States.

How to Select and Store

Since pears are very perishable once they are ripe, the pears you find at the market will generally be unripe and will require a few days of maturing. Look for pears that are firm, but not too hard. They should have a smooth skin that is free of bruises or mold. The color of good quality pears may not be uniform as some may feature russetting where there are brown-speckled patches on the skin; this is an acceptable characteristic and oftentimes reflects a more intense flavor. Avoid pears that are punctured or have dark soft spots.

Pears should be left at room temperature to ripen. Once their skin yields to gentle pressure, they are ripe and ready to be eaten.

For the most antioxidants, eat fully ripened pears:

Research conducted at the University of Innsbruck in Austria suggests that as fruits fully ripen, almost to the point of spoilage, their antioxidant levels actually increase.

Key to the process is the change in color that occurs as fruits ripen, a similar process to that seen in the fall when leaves turn from green to red to yellow to brown- a color change caused by the breakdown and disappearance of chlorophyll, which gives leaves and fruits their green color.

Until now, no one really knew what happened to chlorophyll during this process, but lead researcher, Bernard Kräutler, and his team, working together with botanists over the past several years, has identified the first decomposition products in leaves: colorless, polar NCCs (nonfluorescing chlorophyll catabolytes), that contain four pyrrole rings - like chlorophyll and heme.

After examining apples and pears, the scientists discovered that NCCs replace the chlorophyll not only in the leaves of fruit trees, but in their very ripe fruits, especially in the peel and flesh immediately below it.

"When chlorophyll is released from its protein complexes in the decomposition process, it has a phototoxic effect: when irradiated with light, it absorbs energy and can transfer it to other substances. For example, it can transform oxygen into a highly reactive, destructive form," report the researchers. However, NCCs have just the opposite effect. Extremely powerful antioxidants, they play an important protective role for the plant, and when consumed as part of the human diet, NCCs deliver the same potent antioxidant protection within our bodies. . Angew Chem Int Ed Engl. 2007 Nov 19;46(45):8699-8702.

If you will not be consuming the pears immediately once they have ripened, you can place them in the refrigerator where they will remain fresh for a few days. If you want to hasten the ripening process, place them in a paper bag, turning them occasionally, and keep them at room temperature. Storing pears in sealed plastic bags or restricted spaces where they are in too close proximity to each other should be avoided since they will have limited exposure to oxygen, and the ethylene gas that they naturally produce will greatly increase their ripening process, causing them to degrade. Pears should also be stored away from other strong smelling foods, whether on the countertop on in the refrigerator, as they tend to absorb smells.

How to Enjoy


Tips for Preparing Pears:

Fresh pears are delicious eaten as is after gently washing the skin by running it under cool water and patting it dry. Since their skin provides some of their fiber, it is best to not peel the fruit but eat the entire pear. To cut the pear into pieces, you can use an apple corer, cutting from the fruit's base to remove the core, and then cutting it into the desired sizes and shapes. Once cut, pears will oxidize quickly and turn a brownish color. You can help to prevent this by applying some lemon, lime or orange juice to the flesh.

A Few Quick Serving Ideas:

Combine pears with mustard greens, watercress, leeks and walnuts for a delicious salad.

Serve pears with goat or bleu cheese for a delightful dessert.

Add chopped pears, grated ginger and honey to millet porridge for a pungently sweet breakfast treat.

Core pears, and poach in apple juice or wine.

Safety

Pears and Pesticide Residues

Virtually all municipal drinking water in the United States contains pesticide residues, and with the exception of organic foods, so do the majority of foods in the U.S. food supply. Even though pesticides are present in food at very small trace levels, their negative impact on health is well documented. The liver's ability to process other toxins, the cells' ability to produce energy, and the nerves' ability to send messages can all be compromised by pesticide exposure. According to the Environmental Working Group's 2006 report "Shopper's Guide to Pesticides in Produce," pears are among the 12 foods on which pesticide residues have been most frequently found. Therefore, individuals wanting to avoid pesticide-associated health risks may want to avoid consumption of pears unless they are grown organically.

Nutritional Profile

Pears are a good source of dietary fiber, vitamin C, copper, and vitamin K.

For an in-depth nutritional profile click here: Pears.

In-Depth Nutritional Profile
In addition to the nutrients highlighted in our ratings chart, an in-depth nutritional profile for Pears is also available. This profile includes information on a full array of nutrients, including carbohydrates, sugar, soluble and insoluble fiber, sodium, vitamins, minerals, fatty acids, amino acids and more.
prasanna

LEAD, KINDLY LIGHT. LOVE IS GOD, LOVE IS OCEAN, " Love Is Eternal. " LIVE TO LOVE TO LIVE.

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