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Sweet Orange
Citrus sinenis
Family: Rutaceae

Clementine, Mandarin, Tangerine, Satsuma
Citrus reticulata,
Family: Rutaceae

Description & storage
Orange: Round thick skinned juicy edible fruit that is a reddish-yellow color when ripe.

Mandarin types: type of small orange with loose skin.

Store them at 12 degrees Celcius (=57o F) or if you like in the refrigerator. This is nice when you use them for squeezing.

Tree
Orange trees are evergreen trees. They grow 8 to 15 m. high.

The mandarin tree grows up to 7,5 m. high.

The kumquat plant is a shrub that grows up to 4m. high.

Sweety: see grapefruits.

Short history
The orange is cultivated over thousands of years now. It is supposed to originate from South- and indo-China.

The clergyman Pierre Clement crossed a mandarin and an orange and this luckily crossing
was a seedless mandarin with a looser skin thus easier to peel: the clementine. (beginning of the 20th century).

The satsuma is a special crossing from Japan. 

Use
Oranges are eaten by hand and squeezed a lot.

Mandarins are eaten by hand and can be used to squeeze as well. A great sweetner for grapefruit juice.

Kumquats are eaten raw withe the edible skin,

Types and family

Clementines: the clementine is a seedless mandarin.
Kumquats: the kumquat is like a citrus fruit and has an edible skin. It is the most well known of the sort fortunella which is closely related to Citrus.
Mandarins: type of small orange with loose skin. The mandarin got its name because it was exploited by high-ranking government officials in China (mandarins).
Minneolas: are a crossing between a tangerine and a grapefruit and can be recognized by 
"the little nose". Can be peeled manually. Is a type of Tangelo, a minneola is a specifically marketed tangelo.
Oranges: There are different types of oranges: navel oranges, Valencia oranges and blood oranges are the most cultivated races.
Tangelos: a tangelo is a crossing between a tangerine, a grapefruit and an orange. A specific kind of tangelo is the Ugli which is described further on this page.
Satsuma:is a very special seedling from Japan. Its skin is a bit tighter than the clementine and it doesn't have seeds as well.
Tangerines: a tangerine is an orange-red mandarin with a particular citrus taste. Can be peeled manually.
Uglis: a specific kind of tangelo, easier to peel.  A crossing between a tangerine, a grapefruit and an orange. Looks really ugli and sometimes has brown spots. Can be peeled manually.

Other peculiar characteristics

  • The calcium in fortified orange juice is better absorbed than the calcium in milk. A glass of milk (8 ounces) has 291 mg of calcium; of which 93 mg is absorbed (31%). Fortified orange juice (8 ounces) has 350 mg of calcium; of which 130 mg. is absorbed (37%). 
  • One orange contains about 50 mg. vitamin C; this is about 2/3 of our daily need;
  • Oranges are an acid and therefore a detoxifying fruit;
  • Bitteroranges can't be eaten raw and are used to make marmalades;
  • Citrus fruit is never colored artificially.
  • The orange colors orange under the influence of cold temperatures. In the tropics the fruit keeps a green to green with yellow stains color.
  • Nutrition Facts
  • Selection
  • Recipes
  • Acidity







  • Home - The different types of fruit - Citrus fruit
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