Study on physiological changes and storage and pre

Study on physiological changes and storage and fresh-keeping of garlic moss after harvest (Part 2)

2 Effect of temperature on material transfer:

garlic moss is stored under natural conditions after harvest, and its moss stalk gradually turns yellow and turns brany. At the same time, the moss bud gradually expands and spreads, which is the result of the transfer of organic matter and water from the moss stalk to the moss bud. At this time, the garlic moss in the edible part turns yellow and the cells become empty. 1. During the moving process, the pendulum should be removed and the contents gradually reduce, thus losing commodity value and edible value. In this experiment, the Postharvest garlic moss was strictly selected and stored at different temperatures for 30 days. The weight gain of the moss bud caused by its material transfer was observed. At the same time, the angular displacement signal was detected and sent to the computer to stop data processing. The results are shown in Table 2

Table 2 average weight gain of moss buds under different storage temperatures

storage innovative connection technology makes multi material lightweight without worries. Storage time

30 days

storage temperature (℃)

26

average weight gain of moss buds (g/kg garlic moss)

4.0

23.3

35.2

it is obvious from the above table, Storage temperature has a great impact on the storage life and quality of Postharvest garlic moss. Appropriate low temperature can effectively control the transfer of moss stem material and water to the moss bud and control the expansion of the moss bud. The closer the temperature is to the freezing point, the slower the material transfer speed is, and the better the control effect is (not lower than the freezing point temperature). It shows that the material transfer is closely related to the storage temperature. With the increase of storage temperature, the weight of moss bracts increased rapidly. Of course, it can be seen from the above table that when only relying on low temperature conditions without other means, considerable substances and water are still transferred, and the best storage effect and long-term storage goal can not be achieved

2.2 effects of temperature, oxygen and carbon dioxide content on the physiology of Postharvest garlic moss

as mentioned earlier, temperature not only has a great impact on the respiratory intensity and material transfer of garlic moss, but also has a considerable impact on the preservation of nutrients in garlic moss. When the temperature, oxygen and carbon dioxide contents in the storage environment change correspondingly, the changes of nutritional components in garlic moss measured after 30 days of storage are shown in Table 3

Table 3 Effect of temperature, oxygen and carbon dioxide content changes on garlic moss quality

storage time (days)

30