Jicama nutrition facts
Jicama is a round, fleshy taproot vegetable of
bean family plant. Its underground starchy root is one of the popular
edible root vegetable grown in many parts of Central American,
South Asian, Caribbean, and some Andean South American regions. Its
refreshing, crispy, ice-white fruit-like pulp is eaten raw or cooked in
a variety of sweet and savory dishes worldwide.
Some of the common names of this tuber are yam
bean, Mexican water chestnut, Mexican turnip, sengkwang, yacon…etc.
It
is pronounced as hecama.
Scientific name: Pachyrhizus erosus.

|
Jicama roots (P.erosus).
Photo courtesy: Gary soup
|
Jicama is a perennial vine plant growing
vigorously under semitropical and tropical climates. It has similar
growth characteristics as that of lima bean or any other bean species
plant. The most distinguishing feature, however, is that it bears
round, fleshy, turnip-like starchy edible root underneath the ground
surface.
Unlike other starch roots like potato,
sweet potato
wherein the peel
may be eaten, jicama features thick dust-brown color inedible skin.
Inside, its white starchy flesh has crisp texture and fruit like
succulent, sweet-starchy taste. Each tuber weighs about 250 to 1200
g.
There exist at least five cultivar types of
Pachyrhizus species; however, the three popular cultivated varieties
include Pachyrhizus erosus (Mexican
yam bean), Pachyuhizus ahipa (Andean yam bean),
and
Pachyrhizus
tuberosus (Amazonian yam
bean, jíquima). P. erosus (‘jícama de leche’)
or Mexican yam bean is the popular variety imported in the USA. Another
cultivar, P. palmatilobus, locally known
as ‘jícama de leche’, has deeply lobed leaflets, a milky sap and less
agreeable taste,
Health
benefits of Jicama
-
Jicama is very low calorie root vegetables;
contains only 35 calories per 100 g. However, its high quality
phyto-nutrition profile comprises of dietary
fiber, and anti-oxidants, in addition to small proportions of minerals,
and vitamins.
-
It is one of the finest source dietary fiber
and excellent source of oligofructose
inulin, a soluble dietary fiber.
The root pulp provides 4.9 mg or 13% of fiber. Inulin is a zero
calorie, sweet inert
carbohydrate and does not metabolize in the human body,
which make the root an ideal sweet snack for diabetics and
dieters.
-
As in turnips, fresh yam bean tubers are
rich in vitamin C;
provide
about 20.2 mg or 34% of DRA of vitamin C per 100 g. Vitamin-C
is a powerful water-soluble anti-oxidant that helps body scavenge
harmful free
radicals, thereby offers protection from cancers, inflammation and
viral cough and cold.
-
It also contains small levels of some of
valuable
B-complex group of vitamins such as folates, riboflavin, pyridoxine,
pantothenic acid and thiamin.
-
Further, it provides healthy amounts of
some important minerals like magnesium, copper, iron and
manganese.
See the table below for in depth
analysis
of nutrients:
Jicama (Pachyrhizus
erosus),
Fresh, raw,
Nutrition Value
per 100 g,
(Source: USDA National
Nutrient data base)
| Principle |
Nutrient
Value |
Percentage
of
RDA |
| Energy |
38 Kcal |
2% |
| Carbohydrates |
8.82 g |
7% |
| Protein |
0.72 g |
1% |
| Total Fat |
0.19 g |
<1% |
| Cholesterol |
0 mg |
0% |
| Dietary
Fiber |
4.9 g |
13% |
| Vitamins |
|
|
| Folates |
12 µg |
3% |
| Niacin |
0.200 mg |
1.5% |
| Pantothenic
acid |
0.135 mg |
3% |
| Pyridoxine |
0.042 mg |
3% |
| Riboflavin |
0.029 mg |
2% |
| Thiamin |
0.020 mg |
2% |
| Vitamin A |
21 IU |
1% |
| Vitamin C |
20.2 mg |
34% |
| Vitamin E |
0.46 mg |
3% |
| Vitamin K |
0.3 µg |
<1% |
| Electrolytes |
|
|
| Sodium |
4 mg |
<1% |
| Potassium |
150 mg |
3% |
| Minerals |
|
|
| Calcium |
12 mg |
1% |
| Copper |
0.048 mg |
5% |
| Iron |
0.60 mg |
7% |
| Magnesium |
12 mg |
3% |
| Manganese |
0.60 mg |
3% |
| Zinc |
0.16 mg |
1% |
| Phyto-nutrients |
|
|
| Carotene-ß |
13 µg |
-- |
| Carotene-α |
0 µg |
-- |
| Lutein-zeaxanthin |
0 µg |
-- |
Selection
and storage
Jicamas are
generally available year around in the markets. Generally, they enter
through land route and flood the USA markets from the Central American
countries during spring and summer.
Choose
well-formed, firm, round, medium sized tubers. Avoid soft, shriveled,
or tubers with surface cuts, cracks and bruise skin.
Once at home,
jicamas can be stored much alike potatoes. They have very good shelf
life and keep well in a cool, dry, dark place for about 3-4 weeks.
Exposure to temperature below 10 °C results in chill-induced changes in
color and texture. In addition, prolong storage converts
starch to sugar, which makes the roots less
sought after in savory dishes.
Cut
sections, cubes or slices, however, should be placed inside the
refrigerator.
Preparation
and serving methods
Wash in cool running water and dry mop like in other tubers. Peel off
thick fibrous skin using a vegetable peeler or paring knife. Peel and
other plant parts contain rotenene,
an organic poison; and therefore, should be discarded. It then can be
cut into cubes, sliced, or chopped to fine sticks in a ways desired. It
then
can be cut into cubes, sliced, or chopped to fine sticks in a ways
desired.
Fresh jicama
is used much like a vegetable and is an important
starch source in much of Central America. It stays crisp when cooked,
making it one of the wonderful vegetable in stir-fries.
Here are some serving tips:
-
Raw jicama has sweet succulent apple like
fruity taste. In many parts of Mexico, fresh tubers are cut into
cubes/sticks and sprinkled with lime
juice, salt and dressed with olive
oil and paprika or ground chilli
pepper.
-
Jicama is a favorite root vegetable in Mexican
cooking where it is used in salads, slaw, stews, stir-fries, soups…etc
with other common vegetables and fruits like orange, pineapple, carrot,
green beans
as well as with poultry, meat and seafood.
-
Outside of the American continent, this tuber
is among the popular starch root in many south and southeast region. In
Malaysia, where it is known as bengkoang,
fresh young
tubers are sliced and eaten with other fruits like pineapple, apple,
raw mango, sweet potato…etc in rujak.
-
In Indonesia, they are served with much
like Malayan salad but with added rujak
sauce made from palm sugar,
tamarind,
shrimp paste, chili peppers, and sautéed peanut
paste. Also,
as a rujak tumbuk,
wherein all the above-mentioned ingredients ground
in a wooden mortar and served in a banana leaf.
- Apart from salads, another popular oriental
dish that uses jicama and turnips is popiah, a
Fujian/Chaozhou-style
fresh spring roll.
Safety profile
Jicama plant contains significant levels of
fat-soluble organic
toxin, rotenone.
It is concentrated especially in the leaf tops, stems
and seed pods and at much lower levels in the roots. Several studies
found that it is linked to the development of
Parkinson's
disease. However, peeled roots are safe for human
consumption, including in children.
Rotenone works at cellular level inhibiting several metabolic enzymes
like NADH dehydrogenase
in the mitochondria. Outside, it is used as
environmentally safe broad-spectrum insecticide, piscicide (to poison
fish), and pesticide. (Medical
disclaimer)
<<-Back to Vegetable nutrition
from jicama.
Visit here
for an impressive list of all variety of vegetables with
complete illustrations of their nutrition facts and health benefits.
<<-Back to Home
page.
Click
this
link to visit very informative pages on:-
^
Back
to TOP
|