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Family Cyperaceae
Apurau
Schoenoplectiella articulata (L.) Lye
BULRUSH

Jie bao shui cong

Scientific names Common names
Eleocharis incurvata (Roxb.) Schult. Apurau (Tag.)
Holoschoenus incurvatus (Roxb.) A. Dietr. Gauai-gauai (S. L. Bis.)
Holoschoenus subarticulatus (Roxb.) A. Dietr. Bulrush (Engl.)
Isolepis articulata (L.) Nees  
Isolepis fistulosa (Forssk.) Delile  
Isolepis incurvata (Roxb.) Nees  
Isolepis prolongata Nees  
Isolepis rugosa Boeckeler  
Schoenoplectiella articulata (L.) Lye  
Schoenoplectus articulatus (L.) Palla  
Schoenoplectus fistulosus (Forssk.) Sojak  
Schoenoplectus pseudoarticularis (Dai & Huang) Liang & Zhang  
Scirpus articulatus L.  
Scirpus fistulosus Forssk.  
Scirpus incurvatus Roxb.  
Scirpus pseudoarticulatus L.K. Dai & S.M.Huang  
Scirpus subarticulatus Roxb.  
Scirpus articulatus L. is a synonym of Schoenoplectiella articulata (L.) Lye The Plant List
Schoenoplectiella articulata (L.) Lye is an accepted name The Plant List

Other vernacular names
CHINESE: Jie bao shui cong.


Botany
Apurau is a densely tufted plant, growing up to 20 to 50 centimeters high. Stems are rather spongy, terete, leafless, and when dry, often transversely septate. Spikelets are 7 to 30, crowded, ovoid to oblong, 1 centimeter long or less. Glumes are ovate, about 4 millimeters long. Nuts are 3-angled, black and shining, obovoid, about 2 millimeters long. Hypogynous bristles are absent.

Distribution
- In open, wet places in settled areas at a low altitude in Luzon Provinces of Cagayan, Ilocos Norte, Pangasinan, Nueva Ecija, Rizal and Laguna.
- Also occurs in the Old World tropics.

Constituents
- A methanolic fraction of seeds showed an excellent source of phenolic compounds and antioxidants.
Alkaloids and saponins were 0.0265 g and 0.0808 g/100 g, respectively. Highest phenolic, flavonoid, and flavanol contents were 26.6733 mg GAE 100 mg, 9.568 µg CE 100 mg, and 5.81 mg RE 100 mg, respectively. (5)

Properties
Considered purgative.

Parts used
Whole plant.

Uses

Edibility
- In India, seeds of Scirpus articulatus are eaten as granular sweets. (5)
Folkloric
- In India, plant is used as a purgative.
- In the Jaipur district, used for vomiting.
- In Bangladesh, roots and branches used for baby's vomiting and diarrhea. The juice from well-grounded roots given to babies before breakfast.

Studies
Nutrient Removal Potential:
Study evaluated the nutrient removal capacity of Lemna major (floating macrophyte) was compared with Scirpus articulatus (emergent macrophyte) in hypertrophic mesocosms held in situ.
(3)
Nutritional / Antioxidant / Antibacterial / Seeds:
Study evaluated underutilized seeds of Scirpus articulatus for nutritional, antioxidant, and antibacterial potential. Nutritional profiling showed an excellent source of phenolic compounds and natural antioxidants in the methanolic fraction. The methanolic extract of seeds showed good antioxidant potential of ABTS (IC50 0.75 mg/ml and FRAP 979.90 µg BHTE 100 mg). Findings suggest a new valuable ingredient for food and nutraceutical preparations. (see constituents above) (5)

Availability
Wild-crafted.

Last Update July 2016

IMAGE SOURCE: / Photo / Scirpus articulatus./ Part of the image collection of the International Rice Research Institute (IRRI)./ Creative Commons Attribution-NCSA2.0  /flickr / click on image to go to source page

Additional Sources and Suggested Readings
(1)
Conservation and Utilization of Medicinal and Aromatic Plants / S. Sahoo
(2)
THE USE OF PLANTS IN TRADITIONAL HEALTH CARE PRACTICE OF THE SHAIJI COMMUNITY IN SOUTHWESTERN BANGLADESH / M Abdul Halim, M S H Chowdhury et al / Journal of Tropical Forest Science 19(3): 168–175 (2007)
(3)
Nutrient removal potential of emergent (Scirpus articulatus) and floating (Lemna major) macrophytes / SAHA DAS S.; JANA B.B. / International Journal of Environmental Studies, Volume 59, Number 4
(4)
Schoenoplectiella articulata (L.) Lye / Synonyms / The Plant List
(5)
Screening of nutritional, phytochemical, antioxidant and antibacterial activity of underutilized seeds of Scirpus articulatus: the basis of Khubahi Ramdana industry. / Aastha Bhardwaj, Najam A. Shakil, Vidyanath Jha, Rajinder Kumar Gupta / Journal of Pharmacognosy and Phytochemistry, Vol 3, Issue 4,



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