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    Pandanus (Pandanus amaryllifolius Roxb.)

    Synonyms

    Pandanus amaryllifolius: Pandanus leaves
    Fresh young pandanus leaves
    botPandanus odorus, P. latifolius
    Chinese
    (Cantonese)
    斑蘭 [bàan làahn], 稱香蘭 [chàn hēung làahn], 七葉蘭 [chāt yihp làahn], 香林投 [hēung làhm tàuh]
    Baan laahn, Chan heung laahn, Chat yihp laahn, Heung lahm tauh
    Chinese
    (Mandarin)
    斑蘭 [bān lán], 稱香蘭 [chèn xiāng lán], 七葉蘭 [qī yè lán], 香林投 [xiāng lín tóu]
    Ban lan, Chen xiang lan, Qi ye lan, Xiang lin tou
    DanishSkruepalme
    DutchSchroefpalm, Pandan
    EnglishUmbrella tree, Screw pine, Screw tree
    EstonianLõhnav pandan, Kruvipuu
    FinnishKairapalmu
    FrenchPandanus
    GermanSchraubenbaum, Schraubenpalme
    Hebrewהפאנדאנוס
    Ha-pandanus (refers to entire genus)
    HindiAmbemohor pat, Rampe
    HungarianPandanusz levél, Panpung levél, Csavarpálma levél
    IndonesianDaun pandan
    ItalianPandano
    Japanisch ニオイタコノキ, ニオイアダン
    Nioi-takonoki, Nioi-adan
    KhmerTaey
    Korean판다누스
    Pandanusu
    LaotianTey Ban, Tey hom
    LithuanianAmarilinis pandanas
    MalayPandan wangi
    NorwegianSkrupalme
    PortuguesePandano
    SinghaleseRampe
    SpanishPandan, Pandano
    SwedishSkruvpalm
    TagalogPandan, Pandan mabango
    Thaiใบเตย, เตยหอม, เตย
    Panae-wo-nging, Bai Toey, Toey-hom, Toey
    VietnameseCây cơm nếp, Dứa thơm, Lá dứa
    Cay com nep, Dua thom, La dua

    Note

    In European languages, there is no distinction between the single species yielding pandanus leaves and the group of species yielding pandanus flowers.
    Pandanus amaryllifolius: Young pandan plant
    Young pandanus plant
    Pandanus amaryllifolius: Screw palm plant
    Same plant 18 months later
    Pandanus utilissimus: Fruit
    Pandanus utilissimus, a species native to Madagascar, with unripe fruit.
    Pandanus amaryllifolius: Older Pandanus leaf
    Older Pandanus leaf

    Used plant part

    Leaves, always used fresh (slightly withered). Even in their native area, pandanus leaves are often replaced by an extract that also contains green food colouring.

    Plant family

    Pandanaceae (screw pine family).

    Sensory quality

    The leaves's aroma is distinct and hard to describe, somewhat nutty, reminiscent to fresh hay and definitely pleasant. A similar scent is found in some aromatic rice varieties grown in South East Asia (e.g., Thai jasmine rice).

    The scent of pandanus leaves develops only on withering; the fresh, intact plants hardly have any odour.

    Main constituents

    The flavour component of pandanus leaves is not well known. It is speculated that the flavour is due to a volatile product of oxidative degradation of a yellow carotenoid pigment that forms only when the plant withers. In that respect, there are similarities to saffron and rose, which also contain carotenoid-derived aroma compounds.

    The best candidate is 2-acetyl-1-pyrroline, which was found in pandanus leaves at levels of about 1 ppm (Cereal Chemistry, 70, 381, 1993) and which also occurs in aromatic rice cultivars; another possibility is ethyl formiate, which is also common to both rice and pandanus leaves (Naturwissenschaften, 71, 215, 1984).

    Yet another study found 3-methyl-2-(5H)-furanone as main volatile compound in pandanus leaves, besides 3-hexanol, 4-methylpentanol, 3-hexanone and 2-hexanone (Flavor and Chemistry of Ethnic Foods, [Proceedings of a Meeting held during the 5th Chemical Congress of North America], Cancun, Nov. 11-15, 1997 (1999)).

    The leaves also contain piperidine-type alkaloids (pandamarine, pandamerilactones) with pyrroline-derived structures (Phytochemistry, 34, 1159, 1993)

    On distillation, the leaves do yield traces of an essential oil, but it is unclear to which extent the volatile oil contributes to pandanus' flavour. In Sri Lankan pandanus leaves (Pandanus latifolius, allegedly synonym to P. amaryllifolius), the following aroma components have been identified in concentrations less than one microgramm per kilogramm (ppb) fresh material: styrene 0.62, ?formylthiphene 0.76, linalool 0.29, β-caryophyllene 0.55, β-farnesene 0.18, 1,2-dimethoxybenzene 0.15 and β-selinene 1.24 ppb. (Phytochemistry, 21, 1653-1657, 1982)

    Origin

    Other than its flower yielding relatives (see pandanus flowers), P. amaryllifolius is not known in the wild state. Today, it is distributed over Southern India, peninsular South East Asia, Indonesia and Western New Guinea.

    Male flowers are extremely rare, and there is no scientific description of a female flower for this species. It is also interesting to note that P. amaryllifolius is the only Pandanus species with fragrant leaves. Taken together, these signs, together with the lack of a wild population and the large distribution, imply a long tradition of cultivation. The only known instances of flowering plants occurred on the Moluccas archipelago, and it is plausible that the species evolved there.

    Etymology

    The genus name derives from the Indonesian name of the tree, pandan.

    Selected Links

    Sorting Pandanus names (www.plantnames.unimelb.edu.au) Recipe: Gai Hoh Bai Toey [ไก่ห่อใบเตย] (importfood.com) Recipe: Gai Hor Bai Toey [ไก่ห่อใบเตย] (northernthailand.com) Recipe: Gai hor bai toey [ไก่ห่อใบเตย] (phuketjettour.com) Recipe: Khai hoh bai toey [ไก่ห่อใบเตย] (bigpond.com)


    Pandanus amaryllifolius: Pandan palm
    Pandanus plant in Vietnam
    Pandanus leaves are a popular flavouring in tropical Asia, from South India to New Guinea. They are used for rather different purposes, but mostly in connection with rice, since rice can profit most from the hey-like odour of pandanus leaves.

    From the Indian subcontinent, I know only of few applications for pandanus leaves. They are commonly employed for Singhalese curries in Sri Lanka (often together with curry leaves), and there are scattered reports of their usage in South India. Most Indian cookbooks, however, do not mention this unique spice.

    Pandanus leaves have their center of usage in South East Asia: In Thailand, Malaysia and Indonesia, pandanus leaves are valued because their fragrance enhances the flavour of rice. Plain rice cooked in coconut milk and flavoured with pandanus leaves is a delicacy even when eaten alone; with only a few more ingredients, the Indonesian specialty nasi kuning (see turmeric) is arrived at. Most delicious is rice steamed in small baskets made from pandanus leaves, as often prepared in Indonesia. Pandanus leaves are very popular on Bali (see Indonesian bay-leaf).

    The nutty, intensive taste of pandanus reminds of the best aromatic rice cultivars (for example, Thai jasmine rice known as khao hom mali [ข้าวหอมมะลิ]) in South East Asia. Lesser rice varieties are often cooked with pandanus leaves to simulate the flavour of the expensive types. Some books state that, used in this way, pandanus leaves impart not only flavour, but also green colour to the rice; yet I have never observed this happen (see also annatto about vegetable food colourings).

    In Thai cuisine, pandanus leaves are occasionally used as very fragrant wrappers. Pandanus chicken, gai hor bai toey [ไก่ห่อใบเตย], is a classical recipe and an eternal favourite in restaurants: Marinated chicken bits are wrapped in pandanus leaves and deep-fried in a wok. Although the leaves are too hard to eat, they impart a most exotic aroma to the meat.

    All over South East Asia, pandanus leaves find their most important culinary application in desserts: In Thailand, iced drinks from young coconuts with pandanus flavour are popular, and in Indonesia, pandan leaves are made into ice cream like concoctions (es pandan, see also vanilla on the topic of ice creams). Furthermore, pandan leaves appear more frequently in sweet puddings or custards based on sticky (glutinous) rice. For these concoctions, glutinous rice is boiled with water, palm sugar and pandanus leaves to yield a heavy mass that becomes semi-solid on cooling. Before serving, thick coconut milk is sprinkled over it. It is often possible to substitute pandanus by vanilla or nutty flavours (e.g., hazelnut extract) in these recipes, although the flavours are not too similar.

    Since the leaves cannot be dried without total loss of fragrance, many cooks prefer an essence (Indonesian: pandan, Thai: toey [เตย]). Typically, the essence is bright green because of food dye added; this colour fits well to the South East Asian habit of having intense, unrealistic colourings for all types of sweet snacks, but it's a nuisance if one wants to flavour spicy foods with pandanus extract.



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    Modification date: 12 Sep 2001