Management Technology of changing Color of Lentinus edodes stick
The color conversion management of bacterial sticks can be divided into two ways: taking off the bag and changing color in the bag. at present, most of the production is for the purpose of obtaining flower mushrooms or high-quality thick mushrooms, so it is mostly in the bag. Its basic management is as follows:
1. Drilling to increase oxygen: after the mycelium is full, the substrate is filled with mycelium, and its metabolism is greatly increased. The purpose of increasing internal oxygen, removing waste gas, improving metabolism and losing part of water is achieved by drilling, which is the first step of color conversion management.
2. Promoting the separation of the film from the wall: through drilling, moving, etc., to promote the separation of the plastic film from the base material. For precocious strains with short inoculation time, because it is difficult to leave the wall naturally, you can pick up the plastic film while drilling to facilitate the production of aerial hyphae.
3. Palletizing ventilation: according to the air temperature, triangular or well-shaped palletizing is adopted, and the height of the bacterial rod varies from 4 to 8 layers, which can not only make full use of the space, but also does not make the bacterial stick overcrowded, and there is a "natural ventilation" in the middle of the bag stacking, which is beneficial to the ventilation between the bags and in the film.
4. Temperature regulation: according to the different seasons, the temperature in the stack can be controlled artificially to keep it at 15-25 ℃, and the lowest temperature in the low temperature season can be controlled at about 10 ℃. When the temperature in the stack reaches 25 ℃, the cover should be removed and the stack should be palletized to dissipate heat. The principle is "it is better to prolong the color conversion time at low temperature than to burn bacteria at high temperature".
5. Ventilation pressure bacteria: under more suitable conditions, the material surface will soon grow a layer of fine aerial hyphae and begin to secrete pigments, resulting in light soy sauce-colored water droplets, which is an important signal of color change. At this point, two measures can be taken. First, the use of groundwater direct spray, not only for bacterial sticks to cool, but also wash off part of the pigment water droplets, at the same time should strengthen ventilation, generally master 2 hours after spraying the material table can not stick hand; the second is stacking, while strengthening ventilation.
6. Increase the temperature difference: practice has proved that under certain conditions, increasing the temperature difference between day and night on the basis of cooling as much as possible is one of the main measures to promote color conversion.
7. Alternation of dry and wet: this measure can be realized by spraying cold water and strengthening ventilation. On the one hand, spraying cold water stimulates the bacterial stick with a large temperature difference to promote its rapid formation of bacterial film; on the other hand, it can improve its humidity, and the alternation of dry and wet can be achieved by strengthening ventilation and other measures.
8. Light stimulation: proper light stimulation is an important factor to promote the color conversion of bacteria stick. In general, the light intensity can be adjusted to about 1000 lux, that is, relatively bright light; and through stacking or conversion of light sources, so that the bacterial stick is subject to uniform light, to achieve the purpose of uniform color conversion, neat and uniform.
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It is important to change the color of Lentinus edodes sticks
When the mycelium of Lentinus edodes fills the bag and reaches a certain physiological maturity, the ventilation, light, temperature and humidity of the growth environment are artificially regulated, so that all the aerial hyphae on the material surface lodge and secrete pigments. the color of the material surface gradually changed from thick white and light white to light brown to brown and brown, and finally formed a brown membrane with multiple functions such as heat preservation, moisturizing, light protection, anti-miscellaneous bacteria and so on. This process is called color conversion. The color depth and film thickness of Lentinus edodes stick are closely related to the time, yield and quality of mushroom. General condition
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Cause Analysis and Preventive measures of burning rotten Lentinus edodes sticks
From the end of June to the first ten days of August 2003, Lishui City, Zhejiang Province had a rare weather with high temperature and little rain lasting more than 40 days. The temperature above 40 ℃ reached 14 days, among which the urban area of Lishui reached 43.2 ℃, breaking through the historical extreme value and ranking first in the country. It has had a serious impact on people's production and life, especially on the production of Lentinus edodes. The mycelium of Lentinus edodes was harmed by high temperature, such as black water, rotten loose tube and so on. Of the 350 million bags of mushroom sticks in the city, 150 million bags were rotten by burning bacteria at high temperature, accounting for
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