AS ETHYLENE INHIBITOR

As Ethylene Inhibitor


          Why ethylene as an inhibitor of CO2?? Because of the changes in biochemistry and physiology during the harvest, which transpirasimenciptakan pumping activities, water is absorbed from the roots, trunk, branches and leaves untukmempertahankan turgiditas, so the plants look fresh and also have jaminankesehatan plants. Turgiditas of an organ is the result of a balance between hilangnyaair through transpiration and water appeal to the cells. The existence of transpiration, the water content of the cells decreased as a result cover osmotic pressure (OP) decreases. So SP increases. If the organs remain attached to the plant, the water quickly offset olehmasuknya deficitdengan water of vascular tissue, thereby tetapsegar cells (Turgid). Example:
 (1) if it means picking our fruit, broke ties with the parent / base, the water deficit so it is not balanced, the fruit will lose turgiditasnya.Nampak fresh fruit that had withered. The consequences of the loss of turgor.
 a) Transpiration and it will lose the protection of the plant leaf cools. As a result of biochemical changes in the leaves.b) The cells on the surface of the leaves become less active or inactive, and the leaves will be easy to attack pathogens. So, post-harvest handling to maintain turgidity. Another problem is the change of atmosphere in the fruit as we have depanbahwa plant is a closed system in which a layer of cuticle that coats epidermisdapat withstand the pressure a bit high. In apples, for example, the atmosphere or the air in berbedakomposisinya from the air around it. On leaves that have a spongy tissue dimanaterdapat air spaces, clearly different from the composition of the air with outside air. There are air Padaruang gas N2, O2 and CO2 and ethylene which is a product darimetabolisme. If the leaves or fruit are picked, it means deciding barriers by cuticle,
    2. there will be a flow of oxygen to the CO2 out of the fruit and the fruit. Consequently tarjadirasio O2 / CO2 is high. This will lead to increase in respiration and akanmempercepat spent materials for respiration, especially meningkatnyaproses-sugar reduction and oxidative processes primarily affecting phenolic compounds. Fruit yangmengalami this stress will stimulate respiration and Intesa protein. Increased respiration will lead to increased heat loss and plenty of water. Ethylene originally konsentrasinya100 - 1000 ppm through injury plucking will be reduced, so that the concentration menurunantara 0.5 to 1 pp.

Chilling susceptible crop plants that are susceptible to cold temperatures. Chillingsusceptible crop causing physical damage to the fruit, where ethylene production akanmeningkat due to physical damage. In chilling injury (damage due to low temperatures) terjadikerusakan primary and secondary. In the primary damage physical changes in membrane elipida. Then the secondary damage that occurs among ethylene synthesis stimulation that causes the crops (mainly fruit) mature faster, but, at temperatures that may cause the cessation terlalurendah maturation. Fruits and vegetables are very sensitive to cold damage when cooled below 13-16 ° C (55-60 ° F). Cold damage lowers product quality and memperpendekmasa save. Chilling injury can still be restored if such low temperatures masihmendekati optimum temperature threshold ..