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Aside from tomatoes or tomato products like ketchup, it is found in watermelons, grapefruits, red guavas, and baked beans. [4] It has no vitamin A activity. [4]In plants, algae, and other photosynthetic organisms, lycopene is an intermediate in the biosynthesis of many carotenoids, including beta-carotene, which is responsible for yellow, orange, or red pigmentation, photosynthesis, and ...
Carotenosis is a benign and reversible medical condition where an excess of dietary carotenoids results in orange discoloration of the outermost skin layer.The discoloration is most easily observed in light-skinned people and may be mistaken for jaundice.
A collection of yellow pear tomatoes Pear tomatoes on the vine Pear tomatoes sliced. Pear tomato or teardrop tomato is the common name for any one in a group of indeterminate heirloom tomatoes. [1] [2] There are yellow, orange, and red varieties of this tomato, the yellow variety being most common. They are generally sweet, and are in the shape ...
Blossom end rot in tomatoes is often caused by a low concentration of calcium in the fruit. It can also occur in peppers and eggplant.
Lemons turn yellow as they ripen. Ripening agents accelerate ripening. An important ripening agent is ethylene, a gaseous hormone produced by many plants. Many synthetic analogues of ethylene are available. They allow many fruits to be picked prior to full ripening, which is useful since ripened fruits do not ship well.
Out-of-season tomatoes, often grown in large commercial greenhouses, are all but inedible to the sophisticated tomato-lover's palate. Until now, the reason why out-of-season greenhouse tomatoes ...
Chromoplasts are not widely studied and are rarely the main focus of scientific research. They often play a role in research on the tomato plant (Solanum lycopersicum). Lycopene is responsible for the red color of a ripe fruit in the cultivated tomato, while the yellow color of the flowers is due to xanthophylls violaxanthin and neoxanthin. [6]
Lycopene is a classic example of a compound with extensive conjugation (11 conjugated double bonds), giving rise to an intense red color (lycopene is responsible for the color of tomatoes). Charge-transfer complexes tend to have very intense colors for different reasons.