Family • Sterculiaceae - Kleinhovia hospita Linn. - GUEST TREE - Zhe gu ma
|Kleinhovia serrata Blanco|
|Grewia meyeniana Walp.|
|Kleinhovia hospita Linn.|
Other vernacular names
|CHINESE: Ke lan shu, Man tou guo, Mian tou rou.|
|INDONESIAN: Katimaha, Katimanga, Tangkele.|
|PAPUA NEW GUINEA: Mato kea, Metakek, Matakara, Maroai..|
|THAI: Chmphu-phuang, Hatsakhun-thet, Po-farang.|
|VIETNAMESE: Tra d[or], C[aa]y tr[af].|
|Bantana (P. Bis.)|
|Biluan (P. Bis.)|
|Bitanag (C. Bis., Mbo.)|
|Lapnis (C. Bis.)|
|Tamanag (Bag., Mag.)|
|Tan-ag (Tag., Bik., S. L. Bis.)|
|Guest tree (Engl.)|
|Zhe gu ma (Chin.)|
Additional Sources and Suggested Readings
(1) Cycloartane Triterpenoids from Kleinhovia hospita / Li-She Gan et al / J. Nat. Prod., 2009, 72 (6), pp 1102–1105 • DOI: 10.1021/np900029z
(2) Antioxidant Activity and Cytotoxicity of the Traditional Indonesian Medicine Tahongai (Kleinhovia hospita L.) Extract / Arung E T et al / Journal of Acupuncture and Meridian Studies, 12/24/09
(3) Kleinhospitines A-D, new cycloartane triterpenoid alkaloids from Kleinhovia hospita. / Zhou CX, Zou L, Gan LS, Cao YL. / Org Lett. 2013 Jun 7;15(11):2734-7. doi: 10.1021/ol401066j. Epub 2013 May 24.
(4) Kleinhovia hospita / Vernacular names and Uses / Proseanet
Tan-ag is a tree growing 8 to 15 meters high. Leaves are alternate, broadly ovate, 10 to 20 centimeters long, with pointed tip and heart-shaped base, with petioles 5 to 20 centimeters long. Flowers are pink, about 8 millimeters long, borne on panicles 20 to 40 centimeters long, terminating the branches. Fruit is a thin-walled, inflated capsule about 2 centimeters long.
– Common in thickets, secondary forests, and deserted clearings at low and medium altitudes throughout the Philippines.
– Also occurs in India to tropical Africa and to Malaya.
– Yields triterpenes (beta-amyrin, bauerenol, baurenol acetate, betulin, lupeol acetate), fatty acids, flavonol (kaempferol, nicotiflorin, quercetin, rutin, vitexin), coumarin (scopoletin), steroid (beta-sitosterol).
– Leaves and bark contain cyanogenic compounds that provide lice-killing properties.
– Extracts of leaves have shown antitumour activity against mice-sarcoma.
– Scopoletin, kaempferol and quercetin have been isolated from the leaves.
Bark and leaves.
Edibility / Nutritional
– Young leaves and sprouts eaten as vegetable.
– Decoction of leaves used for scabies and itching and all forms of dermatitis.
– Used for psoriasis.
– Bark and leaves used in Malaya as hairwash to destroy lice.
– In eastern Malaysia juice of leaves used as eyewash.
– In Malaya, Indonesia and Papua, New Guinea, used to treat scabies.
– In Papua New Guinea and the Solomon Islands, a preparation from the cambium used to treat pneumonia. Leaves used as hair-wash to get rid of lice.
– Bark is scraped, mixed with water, filtered and drunk to relieve coughs and tuberculosis.
– Crushed leaf rubbed on skin diseases and rubbed on the forehead to relieve headaches.
– Juice from young leaves, mixed in water, drunk to treat bee stings.
– Fiber: Bast fibers used for tying or rope making used for tethering livestock. The rope is durable during rainy weather.
– Poison: In Marinduque, bark is reportedly used to poison eels.
– Repellent: Leaves are used as rice field insects repellent.
– Ornamental: Ornamental use for its pink-colored panicles.
• Cycloartane Triterpenoids / Hepatoprotective: Study isolated four new cycloartane triterpenoids with known gardenolic acid from K hospita. The compounds showed promising hepatoprotective effects on nitrofuratoin-induced cytotoxicity in human liver-derived Hep G2 cells.
• Antioxidant / Cytotoxicity: Study of leaf extracts of K hospita showed potent antioxidant activity (96% compared to vitamin C, 98 %) and moderate dose-dependent cytotoxicity on HepG2 liver cancer cells.
• Kleinhospitines / Triterpenoid Alkaloids / Hepatoprotective: Study isolated Kleinhospitines A-D, four unprecedented cycloartane triterpenoid alkaloids isolated as two mixtures of C-23 epimers. The two mixtures showed hepatoprotective activity against H2O2-induced oxidative dames on primary cultured rat hepatocytes.