One aspect of ethylene is that it is a plant growth hormone that causes fruit to mature.
Chemically it is a hydrocarbon (alkene) with the formula H4C2 (structurally H2C=CH2). The double bond between the carbons makes it easy to react in the formation of many chemical compounds.
One natural source of ethylene gas is apples. If you seal apples in a container with potatoes, the apples will give off enough ethylene to keep the potatoes from sprouting for several months, much longer than without.
harmful or toxic to humans in low concentrations
Ethylene gas causes produce to ripen. When ethylene gas is being produced you will notice the produce begin to ripen until it becomes overripe.
The gas commonly used in gas sterilization is ethylene oxide (EtO).
ethylene gas is a gas that plants produce to help them grow and age faster sometimes too much ethylene gas can result to over ripening (rotting) to reduce over ripening, put your produce in a cold area such as the fridge because the cold slows down the production of ethylene gas
J&J gas
Ethylene act as a hormone of senescence for plants.
Apple, bananas, pears. A rotting fruit you'll find will give off more ethylene gas than a healthy fruit.
ethylene oxide
Ethylene
No, a high amount of Ethylene gas will result in stunted growth and flower drop. It does speed up the ripening on the mature fruit. Some growers harvest fruit green then use ethylene gas to artificially ripen the fruit.
No, it's not the same thing. Ethylene is a gas used to produce polyethylene (solid). "Polymer grade" is just a purity label for ethylene gas, means that this ethylene is pure enough to be used in polyethylene (or other polymer) production.
why yes, yes there is. The gas substance from the banana is ethylene, but the sugar content fructose helps. That why a banana tastes like it does.
I am not sure if this applies to all fruits but in Food Inc. they used ethylene gas on unripened tomatoes so that when they do reach grocery stores and markets they are ripe and ready for consumption.