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Family Annonaceae
Hilagak
Pedped
Uvaria rufa
Blume.

Other scientific names  Common names 
Uvaria Solanifolia Presl Allagat (Ilk.)
Unona setigera Blanco Batag-kabalang (Bik.)
Uvaria ridleyi King Hilagak (Tag.)
? Uvaria purpurea Blume Hinlalagak (Tag.)
  Iniu (Sbl.)
  Pedped (Ilk.)
` Susung-damulag (Pamp.)
  Susung-kabayo (Tag.)
  Susung-kalabau (Tag.)

Botany
A climbing shrub, 5 to 6 meters high. The younger and lower surfaces of the leaves are hairy, with rusty short hairs. Leaves are borne on very short stalks, oblong-ovate to oblong-lanceolate, 8 to 16 cm long, with pointed tips and rounded or heart-shaped bases. Flowers are extra-axillary, solitary, two or three in depauperate cymes, 1.5 to 2 cm in diameter. The fruit is fleshy and red when mature.

Chemical constituents
• The bark contains an alkaloid. The active principle is parasympathetic of the atropine group with activity similar to artabotrine of Marañon.
• Study yielded an oil rich in sesquiterpenes in which the principal component was alpha-humulene (50%). Also, benzyl benzoate (5%).

Distribution
In thickets in low and medium altitudes.

Parts utilized
Roots

Uses
Folkloric
Alcoholic tincture of the roots used as an ecbolic (promoting labor by increasing uterine contractions.

Studies
Essential Oil / Sesquiterpene:
Uvaria rufa yielded an oil rich in sesquiterpene, in which the principle component as [alpha]-humulene (50%). Benzyl benzoate was also present at 5%.
Flavonoid Glycosides / Advanced Glycation End-Products Inhibition / Anti-Diabetic: Study yielded five flavonol glycosides: rutin, isoquercitrin, kaempferol 3-O-ß-galactopyranoside, astragalin, isoquercitrin-6-acetate. 2 of the compounds showed an ability to inhibit the formation of AGEs in the bovine serum albumin-glucose assay. AGEs contribute to the development and progression of diabetic complications and aging.


Availability
Wild-crafted. 


Last Update June 2010

GRAPHIC: Digitally modified image from Minor Products of Philippine Forests / Vol 2 / Wild Food Plants of the Philippines / William H Brown / Figure 26 / Uvaria rufa (susung-kalabau) / 1920

Additional Sources and Suggested Readings
(1)
Essential Oils from the Leaves of Some Queensland Annonaceae / by Brophy, Joseph, Goldsack, Robert, Forster, Paul / Journal of Essential Oil Research • Mar/Apr 2004
(2)
Highly oxygenated cyclohexene metabolites from Uvaria rufa / Florie A. Tudla et al / Biochemical Systematics and Ecology, Volume 35, Issue 1, January 2007, Pages 45-47 / doi:10.1016/j.bse.2006.08.006
(3)
Flavonoid glycosides from the leaves of Uvaria rufa withadvanced glycation end-products inhibitory activity / Khanittha Deepra et al / Thai J. Pharm. Sci. 33 (2009) 84-90


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