If the cold, gray winter goes on too long, citrus fruits from the south can at least make our mood sunny! And at the top of our list are oranges, one of the most widely grown fruits ever. There are more than 400 different varieties worldwide, of which more than 20 are economically significant. They differ in shape, the thickness of the rind, the color of the pulp, taste, juice and seed content, as well as harvest time.The oranges we buy in winter come almost exclusively from the Mediterranean region, mainly from Spain.
Early varieties - such as the seedless navel oranges with their typical navel - ripen before December. From December to March, varieties such as pineapple or midsweet, as well as most blood oranges, follow. The most well-known representative of the late-ripening fruits is the Valencia orange. That one doesn’t mature until mid-March.
Good to know
According to a US study, organically grown oranges contain up to 30 percent more vitamin C than conventionally produced oranges. One possible reason for this could be the lack of easily soluble nitrogen fertilizers. When there is a lot of nitrogen, the plants store more water and thus dilute the nutrient content.
For individuals with an average tolerance about 30g makes a good test.
*amount of sugar depends on variety and ripeness
**The value of 'fructose total' composes of the pure fructose and 1/2 of the sucrose.
source: BZfE, aid.de