Jicama (also called hongkuak, turnip, mangkuang and sengkuang) (16 August 2008)
Jicama is the English name for
hongkuak. To be precise, you might even want to spell it jícama, and pronounce that as hee-kah-mah, as it's really a Spanish word. You can also call it yam bean, although I would not understand why it should be given the name "bean" when there's nothing leguminous about it. Scientifically, it comes from the genus Pachyrhizus. Some people call it
turnip, which is acceptable but not quite right, as the turnip also refers to an entirely different type of vegetable.
In Penang, jicama is called hongkuak as well as mangkuang in Hokkien. In Malay, it is known as sengkuang.
The jicama, as you would have guessed from its name, originated in Mexico. It is a member of the morning glory family and a cousin of the sweet potato. In Nyonya cooking, jicama is used in jiu hoo char (
fried cuttlefish floss). You also find it in
popiah. In the raw form, jicama appears in
rojak and
pasembur.
Jicama is composed of 80-90% water, and only trace amounts of protein and lipids. It is high in dietary fiber, low in sodium and high in potassium. If you close your eyes and take a bite at the jicama, you'd almost think you are eating water chestnuts. The sweetness comes from the chemical oligofrutose inulin. Jicama stored in a cool, dry place can last for one or two months.