The sub-topic “Study on Fruit Storage and Fresh-keeping Technology†of the National “Ninth Five-Year Plan†key research project “Agricultural Product Processing Technology Research and Development†hosted by the National Research Center for Agricultural Products Preservation Engineering Technology (Tianjin) makes grapes, Red Fuji apples, peaches, and plums. The preservation period of large cherry has been greatly extended, which has played an important role in the post-harvest storage and preservation of fruits in China, and the maintenance and appreciation of value.
When China joins the World Trade Organization, large-scale circulation of agricultural products is already the trend of the times, and the key to entering the market for large circulation is to realize the maintenance and appreciation of agricultural products. Developed countries rely on high input and high energy consumption "cold chain, modified atmosphere" to achieve a good effect of fruit preservation and preservation. At present, China's fruit storage and fresh keeping cannot copy the model of the developed countries. Although we have made great progress in the low-input, low-energy, simple air-conditioning refrigerating technology, there are still many key technical issues. For example, there are still problems in the storage of grapes that are susceptible to phytotoxicity and unstable effects; the Fuji apple is sensitive to carbon dioxide. In view of these circumstances, the National Agricultural Products Preservation Engineering Technology Research Center has a new, highly efficient and low-residue grape preservative, and a new type of gas with low carbon dioxide transmission rate for the current storage and preservation techniques of grape varieties (Kyoho, Red Earth, etc.) in China. The fresh-keeping film was studied.
At present, energy shortage is a limiting factor that restricts China’s economic development. This research mainly uses preservatives and plastic wraps in conjunction with energy-saving refrigerators to effectively control the senescence and microorganism-induced rot in the fruit storage process, thereby prolonging the shelf life of the fruit. Is a low-energy method of preservation.
Through the research on the storage characteristics of Red Globe and Kyoho grapes and the factors affecting storage quality, the research center determined the best storage technology for Red Globe and Kyoho grapes, and used the pharmaceutical compounding technology to develop dual-supply non-tolerance to sulfur dioxide, such as Red Earth. The release of compounded grape preservatives will enable Red Globe grapes to be preserved for 6 months, with a good fruit rate of over 97%. Moreover, the fruits will be substantially free of bleached spots. The residual sulphur dioxide content in fruits is lower than the FDA allows. The imported red earth grape has a sulfur dioxide bleaching rate of more than 50%. The research center also uses the principle of chemical release to develop a preservative suitable for long-term storage of sulfur dioxide-resistant grapes, as well as long-distance transport and short-term storage of preservatives through the selection and proportion adjustment of main and sustained-release agents, enabling the storage of Kyoho grapes. Months, good fruit rate of more than 97%, fruit without bleach spots. The inspection has reached the international leading level and the Ministry of Agriculture Green Development Center has determined that it is a raw material for green food production.
According to the sensitivity of Red Fuji apple to carbon dioxide, the preservation center developed a dedicated MA storage bag for Red Fuji apples, which enabled Red Fuji apples to be stored for 8 months without carbon dioxide damage, and the fruit was fresh as ever. The combination of preservatives and cling film has the advantages of simple storage, practicality, low cost and good preservation effect. It is in line with China's national conditions and promotes the industrialization of agriculture. Through the research on the storage properties of many varieties of peach, plum and big cherries, the most suitable peach varieties for long-term low temperature storage were identified. Through the research on pre-harvest regulation technology, the most suitable freshness-preserving agent and preservation of the cherry was determined. Membrane and determine its storage process.
In the past two years, the technology has been applied to establish 67 county-level demonstration areas in 21 provinces and cities nationwide, producing about 100 million new-type sustained-release grape preservatives, double-released 5 million sets of compounded grape preservatives, and nuclear fruit preservatives 5 million sets, Fuji apple fresh-keeping bags 1 million, total fruit reserves more than 100 million kilograms, cumulative new economic benefits of 300 million yuan, direct economic benefits of 2.7 million yuan.
When China joins the World Trade Organization, large-scale circulation of agricultural products is already the trend of the times, and the key to entering the market for large circulation is to realize the maintenance and appreciation of agricultural products. Developed countries rely on high input and high energy consumption "cold chain, modified atmosphere" to achieve a good effect of fruit preservation and preservation. At present, China's fruit storage and fresh keeping cannot copy the model of the developed countries. Although we have made great progress in the low-input, low-energy, simple air-conditioning refrigerating technology, there are still many key technical issues. For example, there are still problems in the storage of grapes that are susceptible to phytotoxicity and unstable effects; the Fuji apple is sensitive to carbon dioxide. In view of these circumstances, the National Agricultural Products Preservation Engineering Technology Research Center has a new, highly efficient and low-residue grape preservative, and a new type of gas with low carbon dioxide transmission rate for the current storage and preservation techniques of grape varieties (Kyoho, Red Earth, etc.) in China. The fresh-keeping film was studied.
At present, energy shortage is a limiting factor that restricts China’s economic development. This research mainly uses preservatives and plastic wraps in conjunction with energy-saving refrigerators to effectively control the senescence and microorganism-induced rot in the fruit storage process, thereby prolonging the shelf life of the fruit. Is a low-energy method of preservation.
Through the research on the storage characteristics of Red Globe and Kyoho grapes and the factors affecting storage quality, the research center determined the best storage technology for Red Globe and Kyoho grapes, and used the pharmaceutical compounding technology to develop dual-supply non-tolerance to sulfur dioxide, such as Red Earth. The release of compounded grape preservatives will enable Red Globe grapes to be preserved for 6 months, with a good fruit rate of over 97%. Moreover, the fruits will be substantially free of bleached spots. The residual sulphur dioxide content in fruits is lower than the FDA allows. The imported red earth grape has a sulfur dioxide bleaching rate of more than 50%. The research center also uses the principle of chemical release to develop a preservative suitable for long-term storage of sulfur dioxide-resistant grapes, as well as long-distance transport and short-term storage of preservatives through the selection and proportion adjustment of main and sustained-release agents, enabling the storage of Kyoho grapes. Months, good fruit rate of more than 97%, fruit without bleach spots. The inspection has reached the international leading level and the Ministry of Agriculture Green Development Center has determined that it is a raw material for green food production.
According to the sensitivity of Red Fuji apple to carbon dioxide, the preservation center developed a dedicated MA storage bag for Red Fuji apples, which enabled Red Fuji apples to be stored for 8 months without carbon dioxide damage, and the fruit was fresh as ever. The combination of preservatives and cling film has the advantages of simple storage, practicality, low cost and good preservation effect. It is in line with China's national conditions and promotes the industrialization of agriculture. Through the research on the storage properties of many varieties of peach, plum and big cherries, the most suitable peach varieties for long-term low temperature storage were identified. Through the research on pre-harvest regulation technology, the most suitable freshness-preserving agent and preservation of the cherry was determined. Membrane and determine its storage process.
In the past two years, the technology has been applied to establish 67 county-level demonstration areas in 21 provinces and cities nationwide, producing about 100 million new-type sustained-release grape preservatives, double-released 5 million sets of compounded grape preservatives, and nuclear fruit preservatives 5 million sets, Fuji apple fresh-keeping bags 1 million, total fruit reserves more than 100 million kilograms, cumulative new economic benefits of 300 million yuan, direct economic benefits of 2.7 million yuan.
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