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Erythritol

3D-model of a sucrose molecule. Created by Mic...Image via Wikipedia

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Erythritol is a naturally-derived sugar substitute that looks and tastes very much like sugar, yet has almost no calories. It comes in granulated and powdered forms.

Erythritol has been used in Japan since 1990 in candies, chocolate, yogurt, fillings, jellies, jams, beverages, and as a sugar substitute.

Erythritol is classified as a sugar alcohol. Sugar alcohols, also called polyols, are sugar substitutes that are either extracted from plants or manufactured from starches. Some of the more common sugar alcohol sweeteners are sorbitol and xylitol.

Sugar alcohols also occur naturally in plants. Erythritol is found naturally in small amounts in grapes, melons, mushrooms, and fermented foods such as wine, beer, cheese, and soy sauce.

Erythritol is a natural sugar alcohol (a type of sugar substitute) which has been approved for use in the United States and throughout much of the world. It occurs naturally in fruits and fermented foods . At industrial level, it is produced from glucose by fermentation with a yeast, Moniliella pollinis. It is 60-70% as sweet as table sugar yet it is almost non-caloric, does not affect blood sugar, does not cause tooth decay, and is absorbed by the body, therefore unlikely to cause gastric side effects unlike other sugar alcohols. Under U.S. Food and Drug Administration (FDA) labeling requirements, it has a caloric value of 0.2 calories per gram (95% less than sugar and other carbohydrates), but some countries like Japan label it at 0 calories. European legislation actually considers it at 2.4 kcal/g but pending discussion will certainly achieve a 0 kcal/g caloric value by 2009.

Erythritol and human digestion
In the body, erythritol is absorbed into the bloodstream in the small intestine, and then for the most part excreted unchanged in the urine. Because erythritol is normally absorbed before it enters the large intestine, it does not normally cause laxative effects as are often experienced after over-consumption of other sugar alcohols (such as xylitol and maltitol) and most people will consume erythritol with no side effects. This is a unique characteristic, as other sugar alcohols are not absorbed directly by the body in this manner, and consequently are more prone to causing gastric distress .

As a whole, erythritol is generally free of side-effects in regular use, but if consumed in very extreme quantities (sometimes encouraged by its almost non-caloric nature), effectively consuming it faster than one’s body can absorb it, a laxative effect may result. The laxative response does not begin until you cross your body’s natural absorption threshold, which is the point at which you have ingested more erythritol than is found in reasonable servings of food products and is usually a larger amount than most people will eat in a single sitting. Erythritol, when compared with other sugar alcohols, is also much more difficult for intestinal bacteria to digest, so it is unlikely to cause gas or bloating [5], unlike maltitol, sorbitol, or lactitol. Allergic side effects can be itching with hives.

How is Erythritol Made?
Erythritol is usually made from plant sugars. Sugar is mixed with water and then fermented with a natural culture into erythritol. It is then filtered, allowed to crystallize, and then dried. The finished product is white granules or powder that resembles sugar.

How Sweet is Erythritol?
Erythritol is approximately 70 percent as sweet as table sugar (sucrose). Some manufacturers, however, claim that their erythritol products are as sweet as sugar.

Physical properties

Heat of solution
Erythritol has a strong cooling effect (positive heat of solution when it dissolves in water, often combined with the cooling effect of mint flavors, but proves distracting with more subtle flavors and textures. The cooling effect is only present when erythritol is not already dissolved in water, a situation that might be experienced in an erythritol-sweetened frosting, chocolate bar, chewing gum, or hard candy. When combined with solid fats, such as coconut oil, cocoa butter or cow’s butter, the cooling effect tends to accentuate the waxy characteristics of the fat in a generally undesirable manner. This is particularly pronounced in chocolate bars made with erythritol. The cooling effect of erythritol is very similar to that of xylitol and among the strongest cooling effects of all sugar alcohols.

Blending for sugar-like properties:
Beyond high intensity sweeteners, erythritol is often paired with other bulky ingredients that exhibit sugar-like characteristics to better mimic the texture and mouthfeel of sucrose. Often these other ingredients are responsible for the gastric side effects blamed on erythritol. The cooling effect of erythritol is rarely desired, hence other ingredients are chosen to dilute or even negate that effect. Erythritol also has a propensity to crystallize and is not as soluble as sucrose, so ingredients may also be chosen to help negate this disadvantage. Furthermore, erythritol is non-hygroscopic, meaning it does not attract moisture, which can lead to products, particularly baked goods, drying out if another hygroscopic ingredient is not used in the formulation.

Very commonly, inulin is combined with erythritol, due to inulin offering a complementary negative heat of solution (warming effect when dissolved that helps cancel erythritol’s cooling effect) and non-crystallizing properties. Unfortunately, inulin has a propensity to cause gas and bloating when consumed in moderate to large quantities, particularly in individuals unaccustomed to it. Other sugar alcohols are sometimes utilized with erythritol, particularly isomalt due to its minimally positive heat of solution, and glycerin which has a negative heat of solution, moderate hygroscopicity, and non-crystallizing liquid form.

Erythritol and bacteria:
Erythritol has been certified as tooth-friendly[7]. The sugar alcohol cannot be metabolized by oral bacteria, and so does not contribute to tooth decay. Interestingly, erythritol exhibits some, but not all, of the tendencies to “starve” harmful bacteria like xylitol does. Unlike xylitol, erythritol is actually absorbed into the bloodstream after consumption but before excretion. However, it is not clear at present if the effect of starving harmful bacteria occurs systemically.

Resources:
http://en.wikipedia.org/wiki/Erythritol
http://altmedicine.about.com/cs/herbsvitaminsa1/a/Bee_propolis.htm

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How Safe is Stevia

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The sweetener is banned from food products in the U.S. due to toxicity fears. But the findings of several recent studies suggest otherwise.

Stevia  followers are a diverse bunch, including health nuts and food-industry magnates. The draw? The sweetener is all-natural and naturally calorie-free. But “natural” doesn’t necessarily mean safe, and scientists have long struggled to make sense of early evidence hinting that stevia could be toxic. A series of studies published last month in the journal Food and Chemical Toxicology put that question to the test for one type of stevia-based sweeteners.

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Stevia, a South American shrub, has leaves up to 300 times sweeter than table sugar. Extracts have been available as a dietary supplement since 1995. It’s a popular food additive in Japan, Brazil and its native Paraguay, but in the U.S., where the Food and Drug Administration has determined there isn’t sufficient proof it’s nontoxic, stevia is banned from such uses. (Exceptions are made for food and drink items billing themselves as dietary supplements, such as the stevia-sweetened diet drink Zevia.)

FOR THE RECORD:
Stevia sweeteners: An article in Monday’s Health section about no-calorie sweeteners derived from the plant stevia said supermarket sales tests of stevia-derived rebaudioside A (sold as Truvia) were being conducted in New York with the blessing of the Food and Drug Administration. Permission from the FDA was not required for Truvia to be sold. However, Truvia is the subject of an FDA review process that will determine whether the product is safe and allowed to remain on the market. —

The sponsors of the recently published studies — food manufacturer Cargill and the Coca-Cola Co. — hope that in light of recent findings, the agency will reconsider its position on the calorie-free sweetener.

Scientists began studying stevia in the lab roughly 40 years ago, and the first findings gave food safety officials in several countries pause. A 1968 study in female rats showed that drinking a concoction of stevia leaves and stems significantly reduced fertility. A 1985 study, published in the Proceedings of the National Academy of Sciences, showed that steviol, a breakdown product of stevia, might cause genetic mutations. (In Paraguayan traditional medicine, stevia is used to lower blood sugar and as a contraceptive.)

Evidence of genetic and reproductive toxicity was sufficient to inspire a ban on the sweetener in the U.S. since the 1970s. (The 1994 Dietary Supplement Health and Education Act made it legal to sell stevia as a dietary supplement only, as long as it’s not an ingredient in food.) But the research on which the FDA based its long-ago decision may now be out of date. In the last decade, countless studies have revisited stevia, often using purer extracts.

The more-recent research has largely focused on purified forms of the two main chemicals responsible for the stevia plant’s sweetness: stevioside and rebaudioside A. Findings from some studies — still few in number — have resulted in a perhaps overstated claim: that stevia lowers blood pressure.

For example, a 2000 study of 100 adults in Taiwan showed that 250 milligrams of stevioside a day lowered subjects’ blood pressure by 8% to 12% within three months. A 2003 Chinese study in which nearly 170 adults were given 1,500 mg of stevioside daily in three 500 mg doses also reported that subjects’ blood pressure went down. (Both doses are far greater than the amount of stevioside in the few grains of powdered stevia it takes to sweeten a cup of tea.)

Authors of a 2006 report by the World Health Organization acknowledged the promise of the blood pressure studies. The authors also reviewed the dozens of lab and animal studies that had been done on stevioside and rebaudioside A in recent years — and concluded that the compounds appear unlikely to harm DNA or the reproductive system.

The eight studies published in Food and Chemical Toxicology last month went even further. One report showed no reproductive toxicity in rats exposed to the sweetener for two generations, and two human studies showed that 1,000 mg of rebaudioside A per day was safe for healthy adults as well as those with Type 2 diabetes. Rebaudioside A (dubbed Rebiana by Coca-Cola and Cargill) is “safe for human consumption,” three of the study authors wrote. They did not report on stevioside.

These latest findings — should the FDA find them compelling — may be good news for food manufacturers, which have long sought a natural zero-calorie sugar alternative to market to the calorie-conscious public.

But some aren’t convinced it’s good news for consumers just yet. Michael Jacobson, executive director of the Center for Science in the Public Interest Group, a Washington, D.C.-based nutrition advocacy group, said the research still hasn’t quelled concerns about stevia’s genetic toxicity. Although dozens of studies have shown stevia compounds to be harmless, a handful suggest it can damage genetic material. “It’s a warning flag,” he said.

Jacobson added that genetic toxicity may turn out to be attributable to a specific species or component of stevia. Cargill, meanwhile, is certain that at least one stevia component is safe. Rebaudioside A, under the brand name Truvia, is already on store shelves in New York as a test, with the FDA’s blessing. Consumers can expect to see it across the country this fall — if the FDA agrees.

Sources: Los Angles Times

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Are Nano-Foods the Next Scary Items?

Those consumers already worried about genetically engineered or cloned food reaching their tables may soon find something else in their grocery carts to furrow their brows over – nano-foods.

..

Consumer advocates taking part in a food safety conference in Orlando, Florida, this week said food produced by using nanotechnology is quietly coming onto the market, and they want US authorities to force manufacturers to identify them.

Nanotechnology involves the design and manipulation of materials on molecular scales, smaller than the width of a human hair and invisible to the naked eye. Companies using nanotechnology say it can enhance the flavor or nutritional effectiveness of food.
US health officials generally prefer not to place warning labels on products unless there are clear reasons for caution or concern. But consumer advocates say uncertainty over health consequences alone is sufficient cause to justify identifying nano-foods.

“I think nanotechnology is the new genetic engineering. People just don’t know what’s going on, and it’s moving so fast,”Jane Kolodinsky, a consumer economist at the University of Vermont, said at the conference.

American consumers are generally more complacent about genetically modified or cloned foods than their counterparts in Europe. But Michael Hansen, a senior scientist with the Consumers Union, said polls show that 69% of Americans are concerned about eating cloned meat.

He said that in focus groups run by the US Food and Drug Administration, no parents were willing to feed their children meat from cloned animals or their offspring.

New consumer products created through nanotechnology are coming on the market at the rate of 3 to 4 per week, according to an advocacy group, The Project on Emerging Nanotechnologies (PEN), based on an inventory it has drawn up of 609 known or claimed nano-products.

Nano-products in common use today include lightweight tennis rackets and bicycles, and sunscreens containing clear, nonwhite versions of zinc oxide and titanium dioxide. On PEN’s list are three foods – a brand of canola cooking oil called Canola Active Oil, a tea called Nanotea and a chocolate diet shake called Nanoceuticals Slim Shake Chocolate.

Sources
: The Times Of India

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FDA Forced to Admit That Mercury Fillings are Hazardous

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If you’re like most people, you probably have cavities that have been filled with metal or a silver-mercury amalgam. While you probably recognize that such fillings are unattractive in your smile, you might not realize that they’re hazardous to your teeth.

Silver-mercury fillings react to temperature changes, expanding and contracting within your delicate tooth. This movement can weaken the tooth, causing it to break. It can also create a space between the tooth surface and filling that allows bacteria to enter, causing decay.

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Old, broken mercury fillings were replaced with beautiful, strong Porcelain onlays.

The U.S. Food and Drug Administration (FDA) has finally admitted that metal dental fillings containing mercury can cause health problems in pregnant women, children and fetuses.
As part of the settlement of a lawsuit filed by several consumer advocacy groups, the FDA agreed to alert consumers about the potential risks on its Web site and to issue a more specific rule next year for fillings that contain mercury.

The FDA’s Web site now states that: “Dental amalgams contain mercury, which may have neurotoxic effects on the nervous systems of developing children and fetuses.”

Charles Brown, a lawyer for advocacy group Consumers for Dental Choice, said the agency’s move represented an about-face. According to Brown, “Gone, gone, gone are all of FDA’s claims that no science exists that amalgam is unsafe … The impact of the re-writing of its position on amalgam can hardly be understated. FDA’s website will no longer be cited by the American Dental Association in public hearings.”

You may click to see:->Mercury in your brain from amalgam fillings in your mouth.

>Amalgam Fillings: They are Hazardous to Your Health

Sources:

* eMax Health

* Reuters June 4, 2008

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Dry Fruit Herbs & Plants

Pistachio

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Botanical Name:Pistacia Vera/Pistacia atlantica
Family:    Anacardiaceae
Genus:    Pistacia
Species:    P. vera
Kingdom: Plantae
Order:    Sapindales

Common Names: Pistachio, Pistache.Mount Atlas Pistache, Mount Atlas mastic tree, Atlantic Pistachio
Origin: The pistachio tree is native to western Asia and Asia Minor,from Syria to the Caucasus and Afghanistan. Archaeological evidence in Turkey indicate the nuts were being used for food as early as 7,000 B.C. The pistachio was introduced to Italy from Syria early in the first century A.D. Subsequently its cultivation spread to other Mediterranean countries. The tree was first introduced into the United States in 1854 by Charles Mason, who distributed seed for experimental plantings in California, Texas and some southern states. In 1875 a few small pistachio trees, imported from France were planted in Sonoma, Calif. In the early 1900’s the U.S. Dept. of Agriculture assembled a collection of Pistacia species and pistachio nut varieties at the Plant Introduction Station in Chico, Calif. Commercial production of pistachio nuts began in the late 1970’s and rapidly expanded to a major operation in the San Joaquin Valley. Other major pistachio producing areas are Iran and Turkey and to a lesser extent, Syria, India, Greece, Pakistan and elsewhere.

Description:
Pistachio is a desert plant, and is highly tolerant of saline soil. It has been reported to grow well when irrigated with water having 3,000–4,000 ppm of soluble salts.  Pistachio trees are fairly hardy in the right conditions, and can survive temperatures ranging between ?10 °C (14 °F) in winter and 48 °C (118 °F) in summer. They need a sunny position and well-drained soil. Pistachio trees do poorly in conditions of high humidity, and are susceptible to root rot in winter if they get too much water and the soil is not sufficiently free-draining. Long, hot summers are required for proper ripening of the fruit. They have been known to thrive in warm, moist environments.

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The bush grows up to 10 m (33 ft) tall. It has deciduous pinnate leaves 10–20 centimeters (4–8 inches) long. The plants are dioecious, with separate male and female trees. The flowers are apetalous and unisexual, and borne in panicles.

The fruit is a drupe, containing an elongated seed, which is the edible portion. The seed, commonly thought of as a nut, is a culinary nut, not a botanical nut. The fruit has a hard, creamish exterior shell. The seed has a mauvish skin and light green flesh, with a distinctive flavor. When the fruit ripens, the shell changes from green to an autumnal yellow/red, and abruptly splits part way open . This is known as dehiscence, and happens with an audible pop. The splitting open is a trait that has been selected by humans. Commercial cultivars vary in how consistently they split open.

Each pistachio tree averages around 50 kilograms (110 lb) of seeds, or around 50,000, every two years.

The shell of the pistachio is naturally a beige color, but it is sometimes dyed red or green in commercial pistachios. Originally, dye was applied by importers to hide stains on the shells caused when the seeds were picked by hand. Most pistachios are now picked by machine and the shells remain unstained, making dyeing unnecessary except to meet ingrained consumer expectations.

History
Pistachio is often confused with some of the other nine species in the genus Pistacia, such as P. terebinthus and P. lentiscus. These species have a very different distribution, in the Mediterranean and southwest Asia, and have much smaller nuts, lacking the hard shell of P. vera. Their turpentine-flavoured nuts were a popular food in antiquity. Finds of Pistacia from pre-classical archaeological sites, or references in pre-classical texts, always refer to one of these other species (often P. terebinthus).

Pistachio (in the sense of P. vera) was first cultivated in Western Asia. It reached the Mediterranean world by way of central Iran, where it has long been an important crop. Although known to the Romans, the pistachio nut appears not to have reached the Mediterranean or most of the Near East in any quantity before medieval times. More recently pistachio has been cultivated in California (first commercial harvest in 1976) and Australia. The word pistachio is a Persian loanword, coming into English through Italian, and is a cognate to the Modern Persian word Peste’.

Cultivation:
Global Crop;  Management: Coppice;  Management: Standard;  Other Systems: Strip intercrop;  Staple Crop: Protein-oil.

Does well in light calcareous soils. Grows well on poor soils. Prefers long hot summers and low humidity. Plants are not very hardy in Britain and are unlikely to succeed outdoors in any but the mildest areas of the country. They will be hardier in areas with long hot summers that will thoroughly ripen the wood. Plants are prone to fungal root rots. The pistachio nut is often cultivated for its edible seed in warm temperate areas, there are many named forms. It is very unlikely to produce a crop of seeds in Britain, simply because the summers here are not hot enough or long enough. Any pruning that needs to be done is best carried out in the spring. Dioecious, male and female plants must be grown if seed is required. One male plant for every five females is adequate. Special Features: Edible, Not North American native, Attractive flowers or blooms.

Propagation:
Pre-soak the seed for 16 hours in alkalized water, or for 3 – 4 days in warm water, and sow late winter in a cold frame or greenhouse. Two months cold stratification may speed up germination, so it might be better to sow the seed in early winter. The germination is variable and can be slow. Prick out the seedlings into individual pots when they are large enough to handle and grow on the plants for at least their first winter in a greenhouse. Plant out into their permanent positions in early summer and consider giving some protection from winter cold for their first year or two outdoors. Cuttings of half-ripe wood from juvenile trees, July in a frame. Layering.

 

Harvest: The nuts are harvested when the husk or hull covering the shell becomes fairly loose. A single shaking will bring down the bulk of the matured nuts, which can be caught on a tarp or canvas. A fully mature tree may produce as much as 50 pounds of dry, hulled nuts. The hulls should be removed soon after to prevent staining of the shells. To enhance splitting, the hulled nuts may then be dipped into water to moisten the shell and spread out in the sun to dry. One method of salting the split nuts is to boil them in a salt solution for a few minutes, then redry and store them. Stored in plastic bags pistachios will last for at least 4 to 6 weeks in the refrigerator. Frozen they will last for months.
Neutritional Value:
Pistachios are a nutritionally dense food. In a 100 gram serving, pistachios provide 562 calories and are a rich source (20% or more of the Daily Value or DV) of protein, dietary fiber, several dietary minerals and the B vitamins, thiamin and especially vitamin B6 at 131% DV (table).[31] Pistachios are a good source (10–19% DV) of calcium, riboflavin, vitamin B5, folate, vitamin E , and vitamin K (table).

The fat profile of raw pistachios consists of saturated fats, monounsaturated fats and polyunsaturated fats. Saturated fatty acids include palmitic acid (10% of total) and stearic acid (2%). Oleic acid is the most common monounsaturated fatty acid (51% of total fat) and linoleic acid, a polyunsaturated fatty acid, is 31% of total fat.[31] Relative to other tree nuts, pistachios have a lower amount of fat and calories but higher amounts of potassium, vitamin K, ?-tocopherol, and certain phytochemicals such as carotenoids and phytosterols

Edible Uses:

The pistachio is unique in the nut trade due to its semi-split shell which enables the processor to roast and salt the kernel without removing the shell, and which at the same time serves as a convenient form of packaging. About 90% of California pistachios are consumed as in-shell snacks. Shelled pistachios are utilized commercially in confectionery, ice cream, candies, sausages, bakery goods and flavoring for puddings. They can also be added to dressings, casseroles and other dishes.

Health Benefits:

The kernels are eaten whole, either fresh or roasted and salted, and are also used in ice cream and confections such as baklava. In July 2003, the Food and Drug Administration (FDA) approved the first qualified health claim specific to nuts lowering the risk of heart disease: “Scientific evidence suggests but does not prove that eating 1.5 ounces per day of most nuts, such as pistachios, as part of a diet low in saturated fat and cholesterol may reduce the risk of heart disease”.. In research at Pennsylvania State University, pistachios in particular significantly reduced levels of LDL, the ‘bad’ cholesterol, in the blood of volunteers.Pennsylvania State University’s Department of Nutrition and Sciences has also conducted related research on other health benefits of pistachios, including an April 2007 study concluding that pistachios may calm acute stress reaction , and a June 2007 study on the cardiovascular health benefits of eating pistachios. Paramount Farms, the largest commercial producer of pistachios in the United States, operates and maintains a public website with information on pistachio health, nutrition, history, and facts, as well as links or downloadable files for all of the above health research studies and more at PistachioHealth.com.

The pistachio has been used as a dyeing agent and a folk remedy for ailments ranging from toothaches to sclerosis of the liver. The pistachio’s high nutritional value and long storage life also made it an indispensable travel item among early explorers and traders. Along with almonds, pistachios were frequently carried by travelers across the ancient Silk Road that connected China with the West.

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The shell of the pistachio is naturally a beige colour, but it is sometimes dyed red or green in commercial pistachios. Originally the dye was applied by importers to hide stains on the shells caused when the nuts were picked by hand. However most pistachios are now picked by machine and the shells remain unstained, making dyeing unnecessary (except that some consumers have been led to expect coloured pistachios). Roasted pistachio nuts turn naturally red if they are marinated prior to roasting in a salt and strawberry marinade, or salt and citrus salts .
Other Uses:

Landscape Uses:Specimen. Requires a sunny position in a deep well-drained light soil. Succeeds in dry soils.

Pistachio nuts are highly flammable when stored in large quantities, and are prone to self heating and spontaneous combustion

Known Hazards:  Pistachios contain urushiol, an irritant that can cause allergic reactions

Disclaimer:
The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.

Resources:
http://www.crfg.org/pubs/ff/pistachio.html
http://en.wikipedia.org/wiki/Pistachio
http://www.pfaf.org/User/Plant.aspx?LatinName=Pistacia+vera

 

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