A hydrocarbon which has the formula C 2H 4 or H 2 C=CH 2, It is a colorless flammable gas with a faint sweet and musky odor when pure.
Ethylene is a small hydrocarbon gas. It is naturally occurring, but it can also occur as a result of combustion and other processes. You can't see or smell it. Some fruit will produce ethylene as ripening begins. Apples and pears are examples of fruit that produce ethylene with ripening. Ethylene is responsible for the changes in texture, softening, color, and other processes involved in ripening. Fruits such as cherries and blueberries do not produce much ethylene and it doesn't influence their ripening. Ethylene is thought of as the aging hormone in plants. In addition to causing fruit to ripen, it can cause plants to die. It can be produced when plants are injured, either mechanically or by disease. Ethylene gas (C2H4) is a natural growth hormone that is produced by plant tissue as well as by the combustion of synthetic materials. It is the only member of its class and has the simplest structure of all plant growth substances. Unlike most plant hormone compounds, ethylene is a gaseous hormone. Ethylene is not harmful or toxic to humans; however, at extremely high concentrations it is combustible. Its impact on the post harvest industry is tremendous because it is active at very low concentrations and affects plants in many different ways. Dr. Gourmet Says... Ethylene gas is produced naturally by most fruits, such as tomatoes, bananas, peaches, and avocados, and it promotes ripening. Most tomatoes today are picked green and transported unripe to protect them from bruising and spoilage Fruit ripening gas-ethylene. Ethylene (C 2 H 4, also known as ethene) is a gaseous organic compound that is the simplest of the alkene chemical structures (alkenes contain a carbon-carbon double bond). Ethylene is the most commercially produced organic compound in the world and is used in many industrial applications.  Ethylene is widely used in chemical industry, and its worldwide production (over 109 million tonnes in 2006) exceeds that of any other organic compound. Ethylene is also an important natural plant hormone, used in agriculture to force the ripening of fruits. Ethylene's hydrate is ethyl alcohol. Ethylene is produced from essentially all parts of higher plants, including leaves, stems, roots, flowers, fruits, tubers, and seeds. Ethylene production is regulated by a variety of developmental and environmental factors. Ethylene Oxide. Ethylene oxide (EtO) is produced in large volumes and is primarily used as an intermediate in the production of several industrial chemicals, the most notable of which is ethylene glycol. It is also used as a fumigant in certain agricultural products and as a sterilant for medical equipment and supplies.  Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula C 2H 4 or H 2 C=CH 2. It is a colorless flammable gas with a faint sweet and musky  odor when pure. Ethylene is produced from essentially all parts of higher plants, including leaves, stems, roots, flowers, fruits, tubers, and seeds. Ethylene production is regulated by a variety of developmental and environmental factors. Definition of ETHYLENE. 1. : a colorless flammable gaseous unsaturated hydrocarbon C2H4 that is found in coal gas, can be produced by pyrolysis of petroleum hydrocarbons, and occurs in plants functioning especially as a natural growth regulator that promotes the ripening of fruit. 2. : a divalent hydrocarbon group C2H4 derived from ethane Ethene (ethylene) is the most important organic chemical, by tonnage, that is manufactured. It is the building block for a vast range of chemicals from plastics to antifreeze solutions and solvents. Figure 1 On the site at Grangemouth in Scotland, ethene is produced by steam cracking of naphtha.  Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound primarily used as a raw material in the manufacture of polyester fibers and fabric industry, and polyethylene terephthalate resins (PET) used in bottling. Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3•Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
http://www.postharvest.tfrec.wsu.edu/pages/PC2000F http://eris-filter.com/about-ethylene/ http://www.drgourmet.com/askdrgourmet/ethylenegas.shtml http://www.frontlineservices.com.au/Frontline_Services/Fruit_ripening_gas_-_ethylene.html https://en.wikipedia.org/wiki/Ethylene https://www.osha.gov/SLTC/ethyleneoxide/ https://en.wikipedia.org/wiki/Ethylene http://www.merriam-webster.com/dictionary/ethylene http://essentialchemicalindustry.org/chemicals/ethene.html https://en.wikipedia.org/wiki/Ethylene_glycol
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