Citrus anti-corrosion fresh paper

Citrus's preservation and preservation The decay of oranges is mainly caused by Penicillum sp. and Diplodia and E. sinensis. Inhibiting the proliferation of these bacteria can prevent the citrus from decaying. By inhibiting the synthesis of ethylene or eliminating the ethylene produced during the storage, the ripening of the fruit can be delayed and the purpose of preservation can be achieved. Citrus anti-corrosion plastic wrap is a thin special paper. It is composed of fibers, soft texture, and has a certain degree of elasticity. It is a very good protective film for the wrapped fruit. Anti-corrosion plastic wrap is to add chemical drugs to the paper fiber or chemical drugs on the surface of the paper, after using its fruit, because the paper surface of the drug and fruit direct contact, and a large number of kill the surface of the various bacteria. In the later period, it relied mainly on the drug in the paper fiber and the drug between the paper fibers to slowly evaporate and dissolve to destroy the bacteria, control pedicure and black rot, and control the infection of pathogens. The storage of fruits with anti-corrosion fresh-keeping paper has the principle of CA storage; it has a good effect of changing the concentration ratio of O2 and CO2 in the storage atmosphere. In addition to the application of chemical drugs, in addition to the application of chemical drugs, due to the addition of appropriate proportions of fillers and rubber compounds, most of the holes in the paper fibers are filled, resulting in a significant reduction in the air permeability of the paper compared to the post-sealing paper. After the wax is applied, the transparency of the paper is reduced even more because of the covering of the wax film. Therefore, the use of anti-corrosion plastic wrap for single fruit packaging storage, can make the ratio of the O2 and CO2 concentration of the small space where the fruit is to survive, and gradually change during the process of fruit self-breathing, that is, the O2 concentration gradually decreases, and the CO2 concentration gradually increases, thereby inhibiting The respiration of the fruit enhances the fruit's ability to withstand storage. Anti-corrosion plastic wrap because of the small air permeability, with its package, the wind can not blow directly hit the surface of the fruit, so that the water vapor film will not be destroyed, play a role in inhibiting water evaporation. In order to maintain the fruit weight and freshness. Because the anti-corrosion plastic wrap has the above-mentioned various properties, it can get good anti-corrosion and preservation effect. The total loss rate of oranges stored with orange cling wrap paper is more commonly used than in China, 2,4-D and carbendazim liquid dip fruit The total loss rate of storage is reduced by more than 30%, and the color, aroma, taste and nutritional value of citrus can be maintained. ? Preservation preservation paper package fruit storage, as with other storage methods, must ensure that citrus picking meets the operating rules of fruit picking, fruit selection quality meets storage requirements, fruit maturity is not more than eight mature, sweating according to regulations before bagging, The tightness and the number of layers of the citrus packing are moderate, so as to obtain a good effect of preservation and preservation. The preparation of DH-1 type citrus preservative paper developed by Hunan Medical University is to heat and melt a certain amount of industrial paraffin in an aluminum pan, and sequentially add a certain amount of HA and DP (biphenyl) and mix well. Then the mixture was brushed on 43cm28cm kraft paper, cooled into a polyethylene bag, and a DH-1 type citrus preservative paper was obtained. Hunan Paper Research Institute has developed three kinds of anti-corrosion fresh-keeping papers with good anti-corrosion and preservation effects, and the models are KB-1, B-6 and KN-1. These methods are based on the principles of low-temperature preservation storage, modified atmosphere preservation, film preservation, and chemical preservation storage, each of which has its own characteristics and effects. The development of anti-corrosion fresh-keeping paper is a new high-tech method.