Ceiba pentandra dược liệu kháng B16F10 (tế bào)
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| Ceiba pentandra | |
|---|---|
 | |
| Kapok planted in Honolulu, Hawai'i | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Malvales |
| Family: | Malvaceae |
| Genus: | Ceiba |
| Species: | C. pentandra |
| Binomial name | |
| Ceiba pentandra (L.) Gaertn. | |
| Synonyms | |
| |
Ceiba pentandra is a tropical tree of the order Malvales and the family Malvaceae (previously separated in the family Bombacaceae), native to Mexico, Central America and the Caribbean, northern South America, and (as the variety C. pentandra var. guineensis) to tropical west Africa. Kapok is the most used common name for the tree and may also refer to the cotton-like fluff obtained from its seed pods. The tree is cultivated for the seed fibre, particularly in south-east Asia, and is also known as the Java cotton, Java kapok, silk-cotton, Samauma, or ceiba.
Common Names[2][edit]
- English - Kapok, Ceiba, White Silk-Cotton Tree
- Spanish - Ceiba
- French - Fromager
- Surinamese - Kankantrie
- Hindi - Safed semal सफ़ेद सेमल
- Manipuri - মোৰেহ তেৰা Moreh Tera
- Malayalam - Pannimaram
- Tamil - Ilavam
- Telugu - Tellaburaga
- Tagalog/Filipino - Bulak or Bulac
- Marathi - Samali
- Kannada - Dudi
- Sanskrit - Kutashalmali
- Bengali - শ্ৱেত সিমল Shwet Simul
- Sinhala - Kotta [3]
- Ashante, Twi and Fanteen - Onyãã, or Onyina[4]
- Mandingo - banã, bãnda (Dioula), bantã (Malinké), banti[5]
- Indonesian - Randu/Kapuk Randu
- Odia - Semili Tula
- Yoruba - Araba
Characteristics[edit]
The tree grows to 70 m (230 ft) with a trunk up to 3 m (9.8 ft) in diameter with buttresses. The trunk and many of the larger branches are often crowded with large simple thorns. The palmate leaves are composed of 5 to 9 leaflets, each up to 20 cm (7.9 in) long. The trees produce several hundred 15 cm (5.9 in) pods containing seeds surrounded by a fluffy, yellowish fibre that is a mix of lignin and cellulose. One of the oldest known trees, at 200 years, lives in Miami, Florida.[6][dubious ]
Uses[edit]
Kapok fibre is light, very buoyant, resilient, resistant to water, but it is very flammable. The process of harvesting and separating the fibre is labour-intensive and manual. It is difficult to spin, but is used as an alternative to down as filling in mattresses, pillows, upholstery, zafus, and stuffed toys such as teddy bears, and for insulation. It was previously much used in life jackets and similar devices until synthetic materials largely replaced the fibre. The seeds produce an oil that is used locally in soap and can be used as fertilizer.
Native tribes along the Amazon River harvest kapok fibre to wrap around their blowgundarts. The fibres create a seal that allows the pressure to force the dart through the tube. When Pearl Harbour was bombed by the Japanese, a council was summoned that night in Washington, to consider what strategic commodities were threatened. The only reason the American war council could find to justify retaliation was that the 'kapoc' supply was threatened, which was considered at the time to be a strategic material. However, (according to the documentary 'the World at War') no one present at the meeting on the night of Pearl Harbour in the council was able to think what kapoc was used for. Though, Hitler soon declared war on the USA, which rendered this discussion redundant. The commercial tree is most heavily cultivated in the rainforests of Asia, notably in Java (hence its nicknames), Philippines, Malaysia, Hainan Island in China as well as in South America. The flowers are an important source of nectar and pollen for honey bees.
Ethnomedical uses[edit]
Ceiba pentandra bark decoction has been used as a diuretic, aphrodisiac, and to treat headache, as well as type II diabetes. It is used as an additive in some versions of the hallucinogenic drink Ayahuasca.
Kapok seed oil[edit]
A vegetable oil can be pressed from kapok seeds. The oil has a yellow colour and a pleasant, mild odour and taste,[7]resembling cottonseed oil. It becomes rancid quickly when exposed to air. Kapok oil is produced in India, Indonesia and Malaysia. It has an iodine value of 85-100; this makes it a nondrying oil, which means that it does not dry out significantly when exposed to air.[7] Kapok oil has some potential as a biofuel and in paint preparation.
Religion and folklore[edit]
The kapok is a sacred symbol in Maya mythology.[8]
According to the folklore of Trinidad and Tobago, the Castle of the Devil is a huge kapok growing deep in the forest in which Bazil the demon of death was imprisoned by a carpenter. The carpenter tricked the devil into entering the tree in which he carved seven rooms, one above the other, into the trunk. Folklore claims that Bazil still resides in that tree.[9]
Most masks coming from Burkina Faso, especially those of Bobo and Mossi people, are carved from the kapok timber.[citation needed]
Symbolism[edit]
C. pentandra is the national emblem of Guatemala,[8] Puerto Rico,[10] and Equatorial Guinea. It appears on the coat of armsand flag of Equatorial Guinea.[11]
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