Powder 1- Methylcyclopropene 1- MCP 3.3% Technical Grade CAS No 3100-04-7
1-methylcyclopropene (1-MCP) is the most outstanding ethylene inhibitor. 1-MCP can obstruct ethylene’s normal physiological function by irreversible combination with the receptor, so as to delay the ethylene-causing decline of quality. For the features of non-toxic, non-pollution and high efficiency, 1-MCP has wide application prospect in fruits, vegetables and flowers fresh keeping. The use of 1-MCP as a preservative was called a revolution in some developed countries.
Application prospect: 1-MCP is the best ethylene inhibitor. Some research showed that 1-MCP has significant fresh-keeping effect on different fruits and vegetables, such as various of apple, pear, persimmon, kiwi fruit, peach, nectarine, plum, apricot, cherry, grape, strawberry, banana, mango, avocado, orange, lemon, pineapple, litchi, red bayberry, dog head dates, Long dates, tomatoes, broccoli, carrots, parsley and lettuce. A large number of studies have proved the effectiveness of 1-MCP and it is now extending in the all over world. Due to its low toxicity, 1-MCP has wide application prospect.
Preservation: Some studies showed that 1-MCP can inhibit the production of ethylene, delay the appearance of ethylene concentration peak, keep fruit hardness, relief the decrease of fruit hardness in storage and shelf periods, delay the decomposition of chlorophyll, keep fruit color, reduce the loss of titratable acid, maintain good flavor, reduce starch conversion rate, delay the decrease of soluble solids and inhibit postharvest physiological diseases, particularly apple superficial scald.
Effect of 1-MCP treatment on the ethylene evolution rate of postharvest fruit
At room temperature(20℃),1-MCP apparently reduced the ethylene concentration peak of some fruits, including apple,pear,kiwi fruit,jujube and tomato.
Effect of 1-MCP treatment on fruit quality
Under room temperature(20℃),1-MCP apparently delayed the decrease of the hardness of apple and kiwi fruit and inhibited the accumulation of soluble solids of kiwi fruit to some extent, indicating that 1-MCP inhibited the conversion of starch.
1. Effect of 1-MCP treatment on ethylene release rate of kiwi fruit
1-MCP treatment reduced the ethylene release rate under refrigeration(0.2℃-0.8℃). Even though after a period of refrigeration (about 20-25d), it can also inhibit ethylene release.
2. Effect of 1-MCP treatment on hardness and soluble solids of kiwi fruit
Under refrigeration(0.2℃-0.8℃), 1-MCP treatment significantly delayed the decline of fruit hardness and inhibited the accumulation of soluble solids (inhibited the conversion of starch).
The effective component of "Fresh Doctor" is 1-methylcyclopropene (1-MCP), which is the most outstanding ethylene inhibitor. 1-MCP can obstruct ethylene’s normal physiological function by irreversible combination with the receptor, so as to delay the ethylene-causing decline of quality. For the features of non-toxic, non-pollution and high efficiency, 1-MCP has wide application prospect in fruits, vegetables and flowers fresh keeping. The use of 1-MCP as a preservative was called a revolution in some developed countries.
1. Freezers and suitable management of freezers are essential for 1-MCP . The preservation effect is affected by many storage factors including temperature,moisture,concentration of CO2, etc.
2. Air tightness of freezers is the key factor of the preservation effect of 1-MCP.
3. Fruit quality of collection and warehousing is one of the most important factors to the preservation quality.
4. The preservation of 1-MCP is functioned by inhibit the ripening progress of ethylene. It is not harmful to fruits.
5. 1-MCP can not prevent diseases which appear in storage period,such as bitter pit,mold browning,flesh browning,peel browning,fungous diseases,chilling injury and freezing injury.
How to use 1-MCP:
1. Tightness test of freezers
Detect the tightness of ventilating fans, doors, pipelines connecting outside and the joints. If it is poor, you must use belt and plastic film to seal in order to make sure perfect tightness.
2. Preservation treatment
Note:Medicaments like bactericide should not be used in freezers before using this preservative. If used,the freezers must be ventilated until no chemicals could be smelled. Shut down CO2 generator, Ethylene removal machine, ozone generator, etc.
A. Calculate freezers’ volume:(inside Length*width*height)
B. The dosage is 1g per 15 m3.
C. Put the products into paper cups, 1g per cup, then fix the cups in the top baskets, finally add 40ml reagent (about one third of paper cup)
Note: Shut down machines, doors and windows during the process
D. Leave the freezer and close the door immediately after completing. Half hour after turning off the refrigerator, start the fans for 24h. Open the door for 20 min. Then the freezer could be managed normally.
Note: The refrigerator could be started when the temperature is above the storage temperature. If the refrigerator and fans can not be started separately, alternation switch is a good choice.