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Botanical Name : Plantago psyllium/ Plantago ovata
Family : Plantaginaceae
Common Names : Psyllium,ispaghula, isabgol
Habitat : P. ovata is a 119- to 130-day crop that responds well to cool, dry weather. In India, P. ovata is cultivated mainly in North Gujarat as a “Rabi” or post–rainy season crop (October to March). During this season, which follows the monsoons, average temperatures are in the range of 15–30 °C (59–86 °F), and moisture is deficient. Isabgol (P. ovata), which has a moderate water requirement, is given 5 to 6 light irrigations. A very important environmental requirement of this crop is clear, sunny and dry weather preceding harvest. High night temperature and cloudy wet weather close to harvest have a large negative impact on yield. Rainfall on the mature crop may result in shattering and therefore major field losses.The state of Rajasthan in India provides 60% of the world’s production, while the Jalore district alone accounts for 90% of Isabgol production in Rajasthan. Bhinmal agriculture Mandi is declared Isabgol special Mandi. Bhinmal area gives about 2,500 tons per year of Isabgol.
It is cultivated in 50,000 hectares in Mehsana, Banaskantha and Sabarkantha districts of Gujarat and Jalore, Pali, Jodhpur, Barmer, Nagaur and Sirohi districts of Rajasthan.
Plantago ovata is an annual herb that grows to a height of 30–46 cm (12–18 in). Leaves are opposite, linear or linear lanceolate 1 × 19 cm (0.39 × 7.5 in). The root system has a well developed tap root with few fibrous secondary roots. A large number of flowering shoots arise from the base of the plant. Flowers are numerous, small, and white. Plants flower about 60 days after planting. The seeds are enclosed in capsules that open at maturity.
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The fields are generally irrigated prior to seeding to achieve ideal soil moisture, to enhance seed soil contact, and to avoid burying the seed too deeply as a result of later irrigations or rainfall. Maximum germination occurs at a seeding depth of 6 mm (1/4 in). Emerging seedlings are frost sensitive, therefore planting should be delayed until conditions are expected to remain frost free. Seed is broadcast at 5.5 to 8.25 kg/hectare (5 to 7.5 lb/acre) in India. In Arizona trials, seeding rates of 22 to 27.5 kg/ha (20 to 25 lb/acre) resulted in stands of 1 plant/25mm (1 inch) in 15 cm (6 inch) rows produced excellent yields. Weed control is normally achieved by one or two hand weedings early in the growing season. Control of weeds by pre-plant irrigation that germinates weed seeds followed by shallow tillage may be effective on fields with minimal weed pressure. Psyllium is a poor competitor with most weed species.
Plantago wilt “Fusarium oxyspirum” and downy mildew are the major diseases of Isabgol. White grubs and aphids are the major insect pests.
The flower spikes turn reddish brown at ripening, the lower leaves dry and the upper leaves yellow. The crop is harvested in the morning after the dew is gone to minimize shattering and field losses. In India, mature plants are cut 15 cm above the ground and then bound, left for a few days to dry, thrashed, and winnowing.
Harvested seed must be dried below 12% moisture to allow for cleaning, milling, and storage. Seed stored for future crops has shown a significant loss in viability after 2 years in storage.
The genus Plantago contains over 200 species. P. ovata and P. psyllium are produced commercially in several European countries, the former Soviet Union, Pakistan, and India. Plantago seed, known commercially as black, French, or Spanish psyllium, is obtained from P. psyllium L., also known as P. arenaria. Seed produced from P. ovata is known in trading circles as white or blonde psyllium, Indian plantago, or Isabgol. Isabgol, the common name in Pakistan and India for P. ovata, comes from the Persian words asb and ghol, meaning “horse flower,” which is descriptive of the shape of the seed. India dominates the world market in the production and export of psyllium. Psyllium research and field trials in the U.S. have been conducted mainly in Arizona and Washington state.
Recent interest in psyllium has arisen primarily due to its use as an ingredient in high-fiber breakfast cereals, which is claimed to be effective in reducing blood cholesterol levels in those who consume it. Several studies point to a cholesterol reduction attributed to a diet that includes dietary fiber such as psyllium. Research reported in The American Journal of Clinical Nutrition concludes that the use of soluble-fiber cereals is an effective and well-tolerated part of a prudent diet for the treatment of mild to moderate hypercholesterolemia. Research also indicates that psyllium incorporated into food products is more effective at reducing blood glucose response than use of a soluble-fiber supplement that is separate from the food. Although the cholesterol-reducing and glycemic-response properties of psyllium-containing foods are fairly well documented, the effect of long-term inclusion of psyllium in the diet has not been determined. Cases of allergic reaction to psyllium-containing cereal have been documented.
Constituents: ascorbic acid, aucubin, beta-carotene, beta-sitosterol, calcium, chromium, cobalt, fiber, linoleic acid, magnesium, manganese, mucilage, niacin, oleic acid, oxalic acid, phosphorous, potassium, riboflavin, selenium, sodium, stigmasterol, thiamine, tin, zi
Common Uses: Cholesterol Control * Constipation * Weight Loss *
Properties: Astringent* Demulcent* Laxative* Antitussive*
Parts Used: Seeds and seed husks
The seeds of the Plantago ovata contain copious amounts of mucilage that are able to treat diarrhea, constipation and act as a safe and effective weight loss aid. Psyllium seed has been used since ancient times, with no ill effects. These seeds and their husks are a great source of natural fiber. The seed has less fiber than the husk but a wide range of nutrients the husks do not. Although it is traditionally used to treat constipation, research shows that psyllium seed reduces high cholesterol and triglyceride levels. Exactly how it does isn’t known, but it appears to bind with dietary cholesterol and fat to prevent their absorption.
Credit mother nature for devising a substance that can treat both constipation and diarrhea. The seeds soak up fluids, adding bulk to the stool and inhibiting diarrhea. The same absorption of fluids softens the stool, and the larger volume helps pass it through the colon. This easier action makes this herb a good choice for those suffering from hemorrhoids,inflammatory bowel disease or diverticulitis. By bulking the stool, the seeds also relieve pain caused by ulcerative colitis. Unless you have a desire for sugar, artificial flavors and higher prices, try natural psyllium before turning to one of the name brand products such as Metamucil or Fiberall, or any number of commercial laxatives.
Psyllium is mainly used as a dietary fiber, which is not absorbed by the small intestine. The purely mechanical action of psyllium mucilage absorbs excess water while stimulating normal bowel elimination. Although its main use has been as a laxative, it is more appropriately termed a true dietary fiber and as such can help reduce the symptoms of both constipation and mild diarrhea.
Psyllium is produced mainly for its mucilage content, which is highest in P. ovata. The term mucilage describes a group of clear, colorless, gelling agents derived from plants. The mucilage obtained from psyllium comes from the seed coat. Mucilage is obtained by mechanical milling/grinding of the outer layer of the seed. Mucilage yield amounts to about 25% (by weight) of the total seed yield. Plantago-seed mucilage is often referred to as husk, or psyllium husk. The milled seed mucilage is a white fibrous material that is hydrophilic, meaning that its molecular structure causes it to attract and bind to water. Upon absorbing water, the clear, colorless, mucilaginous gel that forms increases in volume by tenfold or more.
The United States is the world’s largest importer of psyllium husk, with over 60% of total imports going to pharmaceutical firms for use in products such as “Metamucil”. In Australia, psyllium husk is used to make “Bonvit” psyllium products. In the UK, ispaghula husk is used in the popular constipation remedy “Fybogel”. In India, psyllium husk is used to make “Gulab Sat Isabgol” psyllium products. Psyllium mucilage is also used as a natural dietary fiber for animals. The dehusked seed that remains after the seed coat is milled off is rich in starch and fatty acids, and is used in India as chicken feed and as cattle feed.
Psyllium mucilage possesses several other desirable properties. As a thickener, it has been used in ice cream and frozen desserts. A 1.5% weight/volume ratio of psyllium mucilage exhibits binding properties that are superior to a 10% weight/volume ratio of starch mucilage. The viscosity of psyllium mucilage dispersions are relatively unaffected between temperatures of 20 and 50 °C (68 and 122 °F), by pH from 2 to 10 and by salt (sodium chloride) concentrations up to 0.15 M. These physical properties, along with its status as a natural dietary fiber, may lead to increased use of psyllium by the food-processing industry. Technical-grade psyllium has been used as a hydrocolloidal agent to improve water retention for newly-seeded grass areas, and to improve transplanting success with woody plants.
It is suggested that the isabgol husk is a suitable carrier for the sustained release of drugs and is also used as a gastroretentive carrier due to its swellable and floatable nature. The mucilage of isabgol is used as a super disintegrant in many formulations.
Adverse Reactions and Warnings:
Possible adverse reactions include allergic reactions such as anaphylaxis, especially among those who have had regular exposure to psyllium dust. Gastrointestinal tract obstruction may occur, especially for those with prior bowel surgeries or anatomic abnormalities, or if taken with inadequate amounts of water.
The U.S. Food and Drug Administration (FDA) has published that psyllium, among other water soluble gums, have been linked to medical reports of esophageal obstruction (Esophageal_food_bolus_obstruction), choking, and asphyxiation.
Specifically, the FDA reports “Esophageal obstruction and asphyxiation due to orally-administered drug products containing water-soluble gums, hydrophilic gums, and hydrophilic mucilloids as active ingredients are significant health risks when these products are taken without adequate fluid or when they are used by individuals with esophageal narrowing or dysfunction, or with difficulty in swallowing.” and “when marketed in a dry or incompletely hydrated form” are required to have the following warning labels:
“`Choking’ [highlighted in bold type]: Taking this product without adequate fluid may cause it to swell and block your throat or esophagus and may cause choking. Do not take this product if you have difficulty in swallowing. If you experience chest pain, vomiting, or difficulty in swallowing or breathing after taking this product, seek immediate medical attention;” and
“`Directions’ [highlighted in bold type]:” (Select one of the following, as appropriate: “Take” or “Mix”) “this product (child or adult dose) with at least 8 ounces (a full glass) of water or other fluid. Taking this product without enough liquid may cause choking.”
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.
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