Ethylene can affect the quality of fruit in many aspects according to different varieties of fruit. The frequent harmful effects are as follows:

1. Promote the after-ripening and softening of fruit in advance: For climacteric fruit, such as banana, apple and mango which are stored and transported for a long time, ethylene will cause their after-ripening in advance, so they shall be sold as soon as possible after after-ripening. Peach, pear and some vegetables, including tomato, bitter gourd, face the same problem.

2. Fade the green of fruit: If lemons are sold in the domestic market, they shall keep bright green. Some oriental pears are light green. Chlorisis indicates the decrease of freshness and a little ethylene can fade the green of these fruit.

3. Increase the mildew and decay rate: Take strawberry as an example, ethylene will increase the mildew and decay of strawberry.

      With the active ingredient of 1-MCP, ““+Double Fresh” Preservative for Fruit (Tablet)” which is researched and developed by the Company can effectively restrain the softening, color change, spot and brown stain. For example, refrigerated apples are easy to have superficial scald, but when they are processed by ““+Double Fresh” Preservative for Fruit (Tablet)”, superficial scald can be basically restrained, the hardness of applies can be delayed obviously and the integrated quality is improved obviously compared with control group.

    “+Double Fresh” Preservative for Fruit (Tablet)” can replace the role of air conditioned storage. For most of apple varieties, after being processed by ““+Double Fresh” Preservative for Fruit (Tablet)”, the preservation effect is commonly better than airconditioned storage.

Characteristics:
1. Safety, non-toxicity and harmless. Toxicity: LD50>5000MG/KG, so it is innoxious substance.
2. Easy to use and long length for preservation.
3. Low use cost and economic.
4. Color and taste retaining, and prevention of disease of storage.

     For example, strongly restrain the superficial scald of apples and black spot disease of pears. “+Double Fresh” Preservative for Fruit (Tablet)” is the most advanced preservative to extend the storage period and shelf life of fruit.