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Wysłany: Wto 8:22, 14 Gru 2010 Temat postu: ugg boots billig Selection of methods of cold fres |
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Selection of methods of cold fresh fruit and vegetable
Higher than the average cost of cold storage room, an additional costly equipment controlled atmosphere, controlled atmosphere storage currently used only for apples, pears and other long-term storage and the need to libraries in general difficult to store high-temperature fruit varieties such as kiwifruit. For variety,[link widoczny dla zalogowanych], small batch, short-term storage of fresh fruits and vegetables that can be applied off: pre-cooling of a vacuum packaging or modified atmosphere packaging of a high-temperature refrigeration (o ~ 4 ℃) processing technology; its small package direct swing frame (frozen counter) sales. Vacuum packaging technology and equipment have been more mature, modified atmosphere packaging of fresh vacuum-packed period is 2 to 2.5 times in 2O days, China has developed a variety of modified atmosphere packaging machines on the market, speed in the packaging to be further increased. Modified atmosphere packaging also applies to flowers and chilled meat. With the improvement of living standards in recent years, the domestic trade market sales of frozen meat has declined, consumption of chilled meat as a new requirements, the cold air forced cooling of the chilled meat vacuum packaging or modified atmosphere packaging, the shelf life of up to two to three weeks. To meet the requirements of internal and external storage sales, better than the frozen meat, fresh effect and low cost. V. Storage Decompression Storage Decompression Storage, also known as low pressure or vacuum storage and preservation, is the development of controlled atmosphere storage is to put fruits and vegetables and other fresh food warehouse closed (container) inside. Cooling process will be stored in the library (containers) of the air out, to reduce oxygen decompression, with the constant pressure to reduce some of the storage of harmful gases (such as ethylene) is also reduced or disappeared, as Storage of fruits and vegetables to create long-term favorable conditions. And \Iv The difference is that controlled atmosphere storage, vacuum storage only change the storage environment, the total content and density of air,[link widoczny dla zalogowanych], the air does not change the proportion of ingredients and combinations. In the normal operation of the decompression library can be completed simultaneously and continuously vacuum cooling, vacuum refrigeration process, reducing the storage process part; the database without airtight packaging of the fruit and vegetable storage, database can be easily used continuous ozone disinfection, sterilization , inhibiting mold I1. To meet the storage of fruits and vegetables: low temperature, high humidity, low oxygen, high corrosion of the four elements of cold storage to extend shelf life than the average 1-2 times. Cold Storage Decompression not only fresh fruit and vegetable store, meat, fish,[link widoczny dla zalogowanych], flowers can also be advanced biological products and file storage, film and cultural relics should not be stored at room temperature and atmospheric pressure items, extensive applications, scientists studying the world's hot spots , the current cost of decompression library and cold storage cost was close. Refrigeration technology of fruit and vegetables has been decades of history,[link widoczny dla zalogowanych], but most are ordinary cold storage. It should be noted on the future development of the advanced refrigeration technology introduced to improve the storage quality of fresh fruits and vegetables, fruit and vegetable markets to improve competitiveness; the same time, many varieties of fruits and vegetables, different varieties should be based on characteristics and storage requirements, select the appropriate cold processing technology to best refrigeration effect and economic benefits; relevant departments as soon as possible a set of international standards and quality standards for cold storage; vigorously promote the combination of agriculture and industry to enhance the added value of agricultural products to develop new modern agriculture. References 1. Ding Chao, Zhu Wendong. Added wro will promote the development of vegetable export [J. Chinese vegetables, 20 (3O, (1) :4-52. Qun. \, (3) :38-413. Kangjing Long. quick freezing, Beijing, China Commercial Publishing House .1996. n14. D is assigned. Zhang Xun, Hu Guochang. fruits and vegetables a vacuum pre-cooling [J]. refrigeration technology, l998, (4): 40-425. Wangshao Xiong. 蔬菜深加工 and development orientation [J. refrigeration technology, 1994, (2) :45-466. Li Baojie. frozen fruit Speed Experimental Study of Preservation Solutions [J]. Refrigeration, 1996,[link widoczny dla zalogowanych], (4) :65-667. Zhaohe Gao, Lin Xiucheng. \, (2) 34-379. fruits and vegetables Atmosphere Engineering Center related information, education, agricultural science and technology information network in China. l0. Majia Ji. \(1) :23-25l1. new technology introduced a new fruit and vegetable preservation of vacuum decompression technology projects developed in China [J]. refrigeration technology, 1994, (2): 56l2. Yun-Sheng Liu. decompression preservation repository About [J. refrigeration technology, 1999, (1) :37-41
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