Time:
On August 18, 2005 originates: The Chinese Xianyang science and technology
network
reads 1,478 time
After the fruits and vegetables pick are rotten is a global question, has
approximately 25% fruits and vegetables product in the world scope because
rottenly to deteriorate to cannot use, After some easy rotten fruit and
vegetables pick the loss rate then reaches as high as above 30%.According to statistics,Picks the loss rate after our country fruit is 25%,The vegetables
then reach as high as 40-50%,But after picks causes the rotten main reason is
strengthens along with the respiration but creates the ethylene density
excessively to be high.In order to lengthen the fruits and vegetables to pick
after life,The people carried on have been various study diligently very many
about keep fresh technology,For example: Refrigeration, air regulation storage,
antistaling agent processing and so on,But all cannot after on be large-scale
solves picks the fruits and vegetables rotten question,But all cannot
large-scale solves the fruits and vegetables picks after to rotten
question,Moreover invests greatly,Also the use is inconvenient.For all
this,After cannot solve the fruits and vegetables to pick the endogene ethylene
synthesis and the extraneous source ethylene to the fruits and vegetables the
influence.But causes the fruits and vegetables to be senile and the rotten
deterioration.
In the
last few years,The people discover some cyclopropane alkenes compound like CP
cyclopropenes,1-MCP(1- metaylcyclopropene),3-MCP(3-metaylcyclopropene),3.3-DMCP(3.3-Dimethyl
cyclo.propene)etc,Can
ethylene competitiveness union ethylene acceptor,Blocks the ethylene
signal conduction but to suppress the ethylene feeling and the physiological
effect to exertion,1-MCP (1- metayl cyclo.propene) function effect in these
cyclopropane alkenes compound to be most prominent,This compound under 20 ℃
conditions is a gaseous state,The nature is stable,Without unusual smell,the
density that processing need is very low,Also
does not have any poisons function.to the human livestock in the useful effect
density scope.
On
July 17, 2002 1-MCP in American official registration,Permission applies in the
apple commercial storage and transportation,Examines does not remain after the
antistaling agent to application.so,The American government environment bureau
exempt the 1-MCP ethylene
reception blocker agent the
application limit,The 1-MCP application to consider is the fruits and vegetables
storage and transportation keep fresh technology scopes the big breakthrough.
The gardening worker
keep fresh on the maintenance test fruits to 1-MCP in the fruits and vegetables
to have the
apple,avocado,banana,pear,peach,nectarine,plum,apricot,cherry,chinese
goosebeery,litchi,mango, lemon, persimmon, grape, indian jujube, carambola,
fragrant pomegranate, fig, cantaloup, citrus fruits, pineapple, strawberry and
so on.The vegetables variety includes: tomato,cauliflower,carrot,green pepper,byoccoli,cucumber,balsam
pear, lettuce,coriander,pawpaw, asparagus, Water
Oat, Cabbage,cauliflower,
kale,Chinese kale,lily
flower and so on.Is unceasingly thorough along with the people to the 1-MCP
research,the application domain is more widespread.
At present,Our country although had the rapid
development of economy after reform and open,But the economic potentiality still
was insufficient to support the fruits and vegetables storage and transportation
to keep fresh technological advance gas adjustment storehouse construction large
amount expense and the operating cost,this also is one of important reasons to
affects our country fruits and vegetables enter international market.The apple
stores after the 1-MCP processing in the ordinary constant temperature
storehouse definitely may achieve air regulation storage the effect,Because the
ordinary constant temperature storehouse had popularized in our
country,Therefore,the 1-MCP application promotion actually a shortcut to reduce
between our country and a developed country disparity.
咸阳市科技局
Chinese Henan Province Xianyang science and
technology bureau