Asparagus officinalisDescription: The spring growth of this plant resembles a cluster of green fingers. The mature plant has fernlike, wispy foliage and red berries. Its flowers are small and greenish in color. Several species have sharp, thornlike structures.Habitat and Distribution: Asparagus is found worldwide in temperate areas. Look for it in fields, old homesites, and fencerows.Edible Parts: Eat the young stems before leaves form. Steam or boil them for 10 to 15 minutes before eating. Raw asparagus may cause nausea or diarrhea. The fleshy roots are a good source of starch.
Asparagus officinalis L. French: Asperge commune. German: Spargel. Spanish: Esparra?go. Italian: Asparago commune. Chinese: T’ien-men-tung. Malayan: Akar parsi. Contains steroidal glycosides, bitter glycosides, flavonoids, saponins. Root.
Action: gentle diuretic to increase flow of urine, Source of folic acid and selenium. Contains steroidal glycosides. Galactagogue, Aphrodisiac.
Uses: Cystitis. Pyelitis. Swollen ankles, oedema where of heart origin. Strong-smelling urine. Some reputation for mild diabetes. Rheumatism, neuritis. Used by the Chinese as an anti-parasitic. Preparations. Half cup fresh root juice, thrice daily. Young shoots at meals.
Nutritional Profile
Energy value (calories per serving): Low
Protein: High
Fat: Low
Saturated fat: Low Cholesterol: None Carbohydrates: Moderate Fiber: Moderate
Sodium: Low
Major vitamin contribution: Vitamin A, folate, vitamin C
Major mineral contribution: Potassium, iron
About the Nutrients in This Food
Asparagus has some dietary fiber, vitamin A, and vitamin C. It is an excel- lent source of the B vitamin folate.
A serving of four cooked asparagus spears (½ inch wide at the base) has 1.2 g dietary fiber, 604 IU vitamin A (26 percent of the R DA for a woman, 20 percent of the R DA for a man), 4.5 mg vitamin C (6 percent of the R DA for a woman, 5 percent of the R DA for a man), and 89 mcg folate (22 percent of the R DA).
The Most Nutritious Way to Serve This Food
Fresh, boiled and drained. Canned asparagus may have less than half the
nutrients found in freshly cooked spears.
Diets That May Restrict or Exclude This Food
Low-sodium diet (canned asparagus)
Buying This Food
Look for: Bright green stalks. The tips should be purplish and tightly closed; the stalks should be firm. Asparagus is in season from March through August.
Avoid: Wilted stalks and asparagus whose buds have opened.
Storing This Food
Store fresh asparagus in the refrigerator. To keep it as crisp as possible, wrap it in a damp paper towel and then put the whole package into a plastic bag. Keeping asparagus cool helps it hold onto its vitamins. At 32°F, asparagus will retain all its folic acid for at least two weeks and nearly 80 percent of its vitamin C for up to five days; at room temperature, it would lose up to 75 percent of its folic acid in three days and 50 percent of the vitamin C in 24 hours.
Preparing This Food
The white part of the fresh green asparagus stalk is woody and tasteless, so you can bend the stalk and snap it right at the line where the green begins to turn white. If the skin is very thick, peel it, but save the parings for soup stock.
What Happens When You Cook This Food
Chlorophyll, the pigment that makes green vegetables green, is sensitive to acids. When you heat asparagus, its chlorophyll will react chemically with acids in the asparagus or in the cooking water to form pheophytin, which is brown. As a result, cooked asparagus is olive-drab.
You can prevent this chemical reaction by cooking the asparagus so quickly that there is no time for the chlorophyll to react with acids, or by cooking it in lots of water (which will dilute the acids), or by leaving the lid off the pot so that the volatile acids can float off into the air.
Cooking also changes the texture of asparagus: water escapes from its cells and they collapse. Adding salt to the cooking liquid slows the loss of moisture.
How Other Kinds of Processing Affect This Food
Canning. The intense heat of can ning makes asparagus soft, robs it of its bright green color, and reduces the vitamin A, B, and C content by at least half. ( White asparagus, which is bleached to remove the green color, contains about 5 percent of the vitamin A in fresh asparagus.) With its liquid, can ned asparagus, green or white, contains about 90 times the sodium in fresh asparagus ( 348 mg in 3.5 oz. can ned against 4 mg in 3.5 oz. fresh boiled asparagus).
Medical Uses and/or Benefits
Lower risk of some birth defects. As many as two of every 1,000 babies born in the United States each year may have cleft palate or a neural tube (spinal cord) defect due to their moth- ers’ not having gotten adequate amounts of folate during pregnancy. The R DA for folate is
400 mcg for healthy adult men and women, 600 mcg for pregnant women, and 500 mcg for women who are nursing. Taking folate supplements before becoming pregnant and through the first two months of pregnancy reduces the risk of cleft palate; taking folate through the entire pregnancy reduces the risk of neural tube defects.
Lower risk of heart attack. In the spring of 1998, an analysis of data from the records for more than 80,000 women enrolled in the long-running Nurses’ Health Study at Harvard School of Public Health/Brigham and Woman’s Hospital, in Boston, demonstrated that a diet providing more than 400 mcg folate and 3 mg vitamin B6 daily, from either food or supplements, more than twice the current R DA for each, may reduce a woman’s risk of heart attack by almost 50 percent. Although men were not included in the analysis, the results are assumed to apply to them as well.
However, data from a meta-analysis published in the Journal of the American Medical Association in December 2006 called this theory into question. Researchers at Tulane Univer- sity examined the results of 12 controlled studies in which 16,958 patients with preexisting cardiovascular disease were given either folic acid supplements or placebos (“look-alike” pills with no folic acid) for at least six months. The scientists, who found no reduction in the risk of further heart disease or overall death rates among those taking folic acid, concluded that further studies will be required to verify whether taking folic acid supplements reduces the risk of cardiovascular disease.
Adverse Effects Associated with This Food
Odorous urine. After eating asparagus, we all excrete the sulfur compound methyl mercap- tan, a smelly waste product, in our urine.
Food/Drug Interactions
Anticoagulants. Asparagus is high in vitamin K, a vitamin manufactured naturally by bac- teria in our intestines, an adequate supply of which enables blood to clot normally. Eating foods that contain this vitamin may interfere with the effectiveness of anticoagulants such as heparin and warfarin (Coumadin, Dicumarol, Panwarfin) whose job is to thin blood and dissolve clots.
Asparagus racemosusLiliaceaeSan, Mar, Hin, Mal: Satavari;Ben: Shatamuli,Guj: Ekalkanto,Tel: Pilligadalu, PhilithagaTam: Ammaikodi, Kilwari,Kan: Aheruballi, Ori: ManajoloImportance: Asparagus is a climbing undershrub with widespread applications as diuretic, cooling agent and an excellent safe herbal medicine for ante-natal care. It is useful in nervous disorders, dyspepsia, diarrhoea, tumours, inflammations, vitiated conditions of vata and pitta, burning sensation, hyperdipsia, ophthalmopathy, nephropathy, hepatopathy, strangury, scalding of urine, throat infections, tuberculosis, cough, bronchitis, gleet, gonorrhoea, leucorrhoea, leprosy, epilepsy, fatigue, hyperacidity, colic haemorrhoids, hypertension, abortion, agalactia, cardiac and general debility (Warrier et al, 1993).Shatavari is described in Rigveda and Atharvaveda. In Ayurvedic classics it is prescribed as a cooling agent and uterine tonic. It is the main ingredient in ayurvedic medicines like shatavari gulam and shatavari ghrtam. Besides quenching thirst, its root juice helps in cooling down the body from summer heat, curing hyper-acidity and peptic ulcer. It contains good amount of mucilage which soothes the inner cavity of stomach. It relieves burning sensation while passing urine and is used in urinary tract infections. It contains an anticancer agent asparagin which is useful against leukaemia. It also contains active antioxytocic saponins which have got antispasmodic effect and specific action on uterine musculature. It is very good relaxant to uterine muscles, especially during pregnancy and is used to prevent abortion and pre-term labour on the place of progesterone preparations. Its powder boiled with milk is generally used to prevent abortion. It increases milk production in cows and buffaloes. Its preparations in milk helps in increasing breast milk in lactating women. Its proper use helps in avoiding excessive blood loss during periods. It clears out infections and abnormalities of uterine cavity and hence it is used to rectify infertility in women. The leaves are used to prepare toilet soaps. The plant has also ornamental value both for indoor and out door decorations (Syamala, 1997).Distribution: The plant is found wild in tropical and subtropical India including Andaman and Nicobar Islands. It is distributed from mean sea level upto 1500m in the Himalayas from Kashmi r eastwards. The crop is cultivated in Kerala, Tamil Nadu, Andhra Predesh and northern states in India. However, most of the requirement of the industry is met through wild collections from forests. It is also grown in gardens.Botany: Satavari, Asparagus racemosus Willd. belongs to the lily family, Liliaceae. Asparagus adscendens Roxb., A. filicinus Lam., A. gonoclados Baker, A. officinalis Linn. and A. sarmentosus Willd. are the other important medicinal plant species of the genus. A. racemosus Willd. is an armed climbing undershrub with woody terete stems and recurved or rarely straight spines. The tuberous succulent roots are 30cm to 100cm or more in length, fascicled at the stem base, smooth tapering at both ends. Young stems are very delicate, brittle and smooth. Leaves are reduced to minute chaffy scales and spines; cladodes triquetrous, curved in tufts of 2-6. Flowers are white fragrant in simple or branched recemes on the naked nodes of the main shoots or in the axils of the thorns. Fruits are globular or obscurely 3-lobed, pulpy berries, purplish black when ripe; seeds with hard and brittle testa.Agrotechnology: The plant comes up well under a wide range of tropical and subtropical climate. Fertile moist sandy loam soils are ideal for its cultivation though it grows in a wide range of soils. Better root development is observed in soils in increased proportion of sand. However, a decline in the yield of the crop is noticed in soils containing previous year’s residue of the roots. Asparagus plant is best grown from its tuberous roots even though it can be successfully propagated through seeds. Since root tubers are of commercial value seed propagation provides economic advantage to the farmers. Seeds usually start germinating after 40 days and average germination is 70% (Tewari and Misra, 1996).For the cultivation of the crop, the land is ploughed well with pre-monsoon showers and seed nurseries are raised on seed beds of approximately 1m width, 15cm height and suitable length. Seed nursery should be irrigated regularly and kept weed free. With the onset of monsoon in June-July the main field is ploughed thoroughly and pits of size 30cm cube are dug at a spacing of 60-100cm. Tiwari and Misra (1996) have reported that irrespective of more number of roots and higher fresh weight per plant under wider spacings, the per hectare yields were highest in the closer spacing of 30cm x 30cm. The pit is filled with a mixture of top soil and well decomposed FYM or compost applied at 10 - 15 t/ha and the seedlings are transplanted. Application of N, P2O5 and K2O at 60:30:30 kg/ha increases the root yield. Regular irrigation and weeding are required to realize higher yields. Standards are to be provided for training the plant (Sharma et al, 1992). Few pests and diseases are observed on this crop. Harvesting the crop after two years provided higher root yield than annual harvests in pots as well as in field experiments. Irrigating the field prior to harvest enables easy harvesting of the root tubers. The average yield is 10 - 15 t/ha of fresh root tubers though yields over 60t/ha have been reported.Properties and activity: Asparagus roots contain protein 22%, fat 6.2%, Carbohydrate 3.2%, Vitamin B 0.36%, Vitamin C 0.04% and traces of Vitamin A. It contains several alkaloids. Alcoholic extract yields asparagin- an anticancer agent. It also contains a number of antioxytocic saponins, viz. Shatavarisn - I to IV (Syamala, 1997). Leaves contain rutin, diosgenin and a flavonoid glycoside identified as quercetin - 3 - glucuronide. Flowers contain quercetin hyperoside and rutin. Fruits contain glycosides of quercetin, rutin and hyperoside while fully ripe fruits contain cyanidin - 3 - galactoside and cyanidin - 3 - glucorhamnoside.Root is demulcent, diuretic, aphrodisiac, tonic, alterative, antiseptic, antidiarrhoeal, glalctogogue and antispasmodic. Aerial part is spasmolytic, antiarrhythmic and anticancer. Bark is antibacterial and antifungal.
willd.
Family: Asparagaceae.
Habitat: Native to Europe and West Asia.
English: Asparagus, Sparrow grass.
Ayurvedic: Shataavari, Vari, Shatviryaa, Shatmuuli, Shatpadi, Bhiru, Naaraayani, Bahusutaa, Atirasaa.
Unani: Haliyun.
Family: Asparagaceae.
Habitat: Found wild in tropical and subtropical parts of India, including the Andamans and ascending in the Himalayas to 1,500 m.
English: Indian asparagus.
Ayurvedic: Shataavari, Shatmuuli, Atirasaa, Bahusutaa, Shatpadi, Shatviryaa, Bhiru, Indivari, Vari. (Substitute for Medaa, Mahaamedaa.)
Unani: Sataavar.
Siddha/Tamil: Thanneervittan kizhangu, Sataavari Kizhangu.
Action: Used as a galactagogue and for disorders of female genitourinary tract; as a styptic and ulcer-healing agent; as an intestinal disinfectant and astringent in diarrhoea; as a nervine tonic, and in sexual debility for spermatogenesis.
Along with other therapeutic applications, The Ayurvedic Pharmacopoeia of India indicates the use of the tuberous root in gout, puerperal diseases, lactic disorders, haematuria, bleeding disorders and also recommends it for hyperacidity.The plant contains saponins—sha- tavarins I-IV. Shatavarin IV is a glycoside of sarsasapogenin. The saponin in doses of 20-500 mcg/ml produces a special blockade of syntocinon (oxy- tocin)-induced contraction of rat, guinea-pig and rabbit uteri in vitro and in situ. It also blocks the uterine spontaneous motility.The dried root yields sitosterol; 4,6- dihydroxy-2-O-(2' hydroxyisobutyl) benzaldehyde and undecanyl cetano- ate, and contains a large amount of saccharine matter, mucilage and miner- als—Ca (0.172), Cu (0.033), Na (14.60), K (8.32), Mg (0.169), Mn (0.0074), Ni (0.105) and Zn (0.072) mg/g(dry weight).The root was found to reduce gastric emptying time comparable to that of metoclopramide. (J Postgrad Med, 1990, 36(2), 91-94).The root extracts exhibited antiallergic activity in animal studies.The root, when fed orally, acted as immunomodulator against induced sepsis and peritonitis in rats and mice.... asparagus racemosus
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