The history of the airplane shows it was invented by Orville (1871-1948) and Wilbur (1867-1912) Wright. They got the patent 9 months prior to their flight in December 1903. The Early History of Flight. There are pictures showing Orville Wright on the plane flying.
Naturally occurring pectin is a soluble fiber found in many fruits and plants. Pectin is a great example of a natural polymer, and is composed of pectic acid and pectinic acid molecules. It is basically a compound with a bunch of sugars and acids attached to it. (I always find the chemical structure fun!) Every plant contains some amount, sometimes just a very small amount, of pectin.
Pectin and Plants. Pectin is a carbohydrate substance derived from plants, usually fruits. Itâs found in the plant cell walls and often binds cells together. Most fruits and some vegetables contain pectin, but apples, plums, grapes and citrus fruits like grapefruit, oranges and lemons are the best sources of pectin.Its concentration is highest when the fruit is at the just-ripe stage. Most commercial pectin is made from apples or citrus fruits.ost fruits and some vegetables contain pectin, but apples, plums, grapes and citrus fruits like grapefruit, oranges and lemons are the best sources of pectin. Its concentration is highest when the fruit is at the just-ripe stage.