Modified atmosphere fresh-keeping method of dendrobium nobile
A technology of modified atmosphere preservation and dendrobium, which is applied to the preservation of plants, botany equipment and methods, applications, etc., can solve the problems of loss of active ingredients, instability, dehydration, etc., to extend the preservation period, convenient operation, and reduce resources wasteful effect
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Embodiment 1
[0040] The same batch of Dendrobium candidum with good appearance, no mechanical damage and mildew was selected for weighing, and the medicinal components such as polysaccharides and extracts were tested to facilitate comparative analysis with Dendrobium at the later stage of storage. Divide Dendrobium into two groups: one group is put into the 3 / (m 2 ·24h·0.1MPa) high-barrier membrane air-modified bag, and the humidity in the bag is controlled at 65%; the other group is put into an ordinary linen bag. Then fill the airtight bag with nitrogen and carbon dioxide, wait until the oxygen content in the bag drops to less than 3%, and the carbon dioxide content is filled to about 5%, and the bag is placed in an environment at 2°C for storage.
[0041] During storage, check the gas content in the bag at least every 1 to 2 weeks, and record the data. When the oxygen and carbon dioxide content exceeds the upper limit allowed by the test, re-breathe the gas in the bag. The controlled...
Embodiment 2
[0044] Select Dendrobium officinale of the same batch with good appearance, no mechanical damage and mildew, weigh them, and divide them into three groups: In the first group, put several Dendrobium directly into the 3 / (m 2 ·24h·0.1MPa) in the high-barrier membrane air-modified bag; the second group puts 5-8 stems of dendrobium into a plastic tray with air holes, and then puts it into the air-modified bag; The three groups put the dendrobium into the linen bag and controlled the humidity at about 65%. Then fill nitrogen and carbon dioxide into the modified atmosphere bag, and when the oxygen content in the bag drops to less than 3%, and the carbon dioxide concentration is 8%-10%, the bags are all placed in an environment of 2°C for storage.
[0045] During storage, check the gas content in the bag at least every 1 to 2 weeks, and record the data. When the oxygen content exceeds the upper limit allowed by the test, re-ventilate the gas in the bag. The controlled atmosphere s...
Embodiment 3
[0048] Select Dendrobium officinale of the same batch with good appearance and appearance, no mechanical damage and mildew to weigh, and divide the weighed Dendrobium officinale into three groups: one group puts a single dendrobium in a plastic tray, and puts the dendrobium into three groups. Put a single dendrobium in a modified atmosphere bag; put several dendrobiums in a plastic box for one group; put the last group of dendrobiums in a foam box, and control the humidity of the three groups at 65% RH. Gas replacement was performed on the three groups of bags so that the oxygen content in the bags was reduced to 3%, and the carbon dioxide was increased to 8%-10%, and then all were stored in an environment at 2°C.
[0049] During storage, check the gas content in the bag at least every 1 to 2 weeks, and record the data. When the oxygen content and carbon dioxide content exceed the limit allowed by the test, re-ventilate the gas in the bag. The controlled atmosphere storage cyc...
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