Fresh-keeping and Storage Technology of New Tea
● aeration and nitrogen filling to keep fresh
Nitrogen is used to replace the air in the bag to prevent the oxidation of tea, so as to achieve the aging and deterioration of tea. Green tea was packed with nitrogen in aluminum foil bags. After 6 months of storage, the vitamin C content could be kept above 96%. Nitrogen-filled packaging in the inflating process must pay attention to the firmness of the bag seal, to prevent the occurrence of insufficient nitrogen or air leakage. Before packing with nitrogen, first remove the air from the bag to form a vacuum, then fill it with nitrogen and seal it tightly. The whole process is completed by a special pumping nitrogen packing machine.
● deoxidizing packaging for fresh-keeping
Deoxidization packaging fresh-keeping refers to the use of good sealing composite film container, into the tea and then add a small packet of deoxidizer and then seal. The deoxidizer is a specially treated active iron oxide, which can react with oxygen in the packaging container, thus consuming the oxygen in the package. The tea packaged by this method can keep the tea in an oxygen-free state for a long time in order to achieve the purpose of keeping fresh. FTS, a special antistaling agent for tea developed by Tea Research Institute of Chinese Academy of Agricultural Sciences, is a deoxidizer suitable for the preservation of famous and high-quality green tea. The aroma and taste quality of packaged tea is better than that of nitrogen-filled packaging, and the vitamin content is basically unchanged after 80 days.
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Family cultivation and maintenance of Magnolia (Magnolia)
Cymbidium, also known as weeping pot grass, laurel orchid, hook orchid, folding crane orchid, Western Europe, also known as spider grass or aircraft grass, is a perennial evergreen foliage plant of Liliaceae. Cymbidium is a perennial herb with tufted cylindrical hypertrophic fibrous roots and rhizomes. Leaves basal, strip to strip-lanceolate, long and narrow, flexible like orchid, 20Mel 45 cm long and 1-2 cm wide, tip long, acuminate; base clasping, inserted on short stem. The most important feature of Cymbidium is that mature plants will grow stems from time to time, and the stems will be 30ml / 60cm long, and plantlets will grow at the apex.
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Trial production of "Rue Tea" from Satsuma Flower
Mandarin flower contains fructose, glucose and other sugars that help digestion and promote health; phosphorus that can excite the nerve; a variety of vitamins that have the effect of anti-capillary brittleness; a large amount of rutin and aromatic oil which can soothe the liver and purge the lungs, smooth qi and resolve phlegm, and contain starch and so on. Nutrition is very rich. In the Tangshili orange orchard in the two cities of Shaodong County, we saw that nearly 100000 young Wenzhou mandarins were picked and wasted. After repeated trial production, we made some "rue tea". "rue tea" is easy to make. Take 9 portions of tea
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