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In 1835, the German pharmacist Ludwig Clamor Marquart named a chemical compound that gives flowers a blue color, Anthokyan, in his treatise "Die Farben der Blüthen" (English: The Colors of Flowers). Food plants rich in anthocyanins include the blueberry, raspberry, black rice , and black soybean, among many others that are red, blue, purple ...
Morus nigra is a deciduous tree growing to 12 metres (39 feet) tall by 15 m (49 ft) broad. The leaves are 10–20 centimetres (4–8 inches) long by 6–10 cm (2–4 in) broad – up to 23 cm (9 in) long on vigorous shoots, downy on the underside, the upper surface rough with very short, stiff hairs.
It can also be found in other fruits such as apples and plums, and in red cabbage and red onion. It has a characteristic reddish-purple color, though this can change with pH; solutions of the compound are red at pH < 3, violet at pH 7-8, and blue at pH > 11. In certain fruits, the highest concentrations of cyanidin are found in the seeds and skin.
The blackcurrant requires a number of essential nutrients to thrive; nitrogen provides strong plant growth and stimulates the production of flower sprigs; phosphorus aids growth, the setting of fruit and crop yield; potassium promotes growth of individual shoots and increases the weight of individual fruits; magnesium is a constituent of ...
In 2021, the world wide cut flower market is estimated at US$10.8 Billion, wholesale value, based on trade statistics from 114 countries. [9] The major importers of cut flowers, as percent of world cut flower imports, in 2021 were the United States (21%), Germany (15%), the Netherlands (12.5%), the United Kingdom (9.4%), Russia (5%), France (4.6%).
The blue color was used to differentiate raspberry-flavored foods from cherry-, watermelon-, and strawberry-flavored foods, each of which is typically red. [1] [2] The use of blue dye also partially is due to the FDA's 1976 banning of amaranth-based Red Dye No. 2, which had previously been heavily used in raspberry-flavored products. [2] [3]
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The fruits are used as a fresh dessert fruit; it is sweet and often served chilled. The fruit also exists in three colors, dark purple, greenish brown and yellow. The purple fruit has a denser skin and texture while the greenish brown fruit has a thin skin and a more liquid pulp; the yellow variety is less common. [citation needed]