Cordyceps cultivation training

How Cordyceps cultivation reduces costs and improves quality

Cordyceps militaris cultivated since March 15, 1988, “Science and Technology Information in Colleges and Universities” and “Marine Mushrooms” on page 31 of 1990, presented on the 31st page of Chen Shunzhi can bottle culture technology. Nowadays, this culture technology is applied at home and abroad to make artificial cultivation. Cordyceps has a big development. However, the cultivation techniques so far have remained at the original level and there has been no major breakthrough. In recent years, with the increase of cultivation households and the expansion of cultivated area, the price of Cordyceps has decreased a lot, and the cultivation cost has not decreased, and the unit yield and quality have not greatly improved. According to my own cultivation practice, I briefly introduce how to reduce costs and improve quality.

Can start from the following aspects:

First, the production of bacteria. At present, most growers use a shaker to grow seeds and dilute with water. Using this method is relatively safe and not easy to infect. However, the amount of seed produced is small and the time is long. After diluting with water, the growth point in the medium is less, the bacterial growth is slower, and the culture medium is susceptible to infection, and it is easy to cause different bacterial ages inside and outside the culture medium, which affects the quality of grass. Some growers also use liquid fermentation tanks for seed production, and the amount of seed produced is relatively safe, but the investment is relatively large, and in order to prevent the serious degradation of bacteria in the seed production process, care must be taken not to multiply many times. The use of oxygen-blown seeding has low cost and simple technology, but most people think that safety is poor and the use is not much. I believe that the details of the seed production process will determine the success or failure. Using oxygen seed production as long as you pay attention to all the details, there is no safety problem, and because Cordyceps militaris is a kind of fungus between aerobic and anaerobic bacteria, The introduction of oxygen during the ball division process can increase the speed of division and enhance the viability of the bacteria ball. The strains produced in this way have a large quantity, high concentration, strong vitality and low cost. After cultivation, there are many growth points, rapid activation, rapid bacterial growth, and low infection rate.

Second, culture media production. The current cultivation medium for farmers is mainly wheat or rice, followed by a small amount of protein frozen or silkworm meal and trace elements, and some directly add water to wheat or rice. In short, each cultivation household is different in selecting the medium. The same, but one thing is the same, that is to choose the cheap, because each bottle is more than two grams of hay, of course, is the choice of low-cost medium. For example: choose low-quality rice. I believe that this kind of understanding is wrong. The quality of the medium will directly affect the quality of the grass, and the yield and quality of the fully-grown grass will increase. Can someone say that it does not increase costs? the answer is negative. The proportion of culture medium in the cost of Cordyceps militaris cultivation is very low, and it is relatively fixed, that is, the choice of good raw materials will increase the cost per kilogram by only two or thirty yuan without increasing grass production. , And the improvement of the quality of the culture medium plays a key role in the yield of grass. The yield of one gram of hay per bottle will far exceed the increased cost. Of course, nutrition is based on a reasonable ratio of carbon to nitrogen and a reasonable ratio. This is like a field without good and reasonable nutrients. How can there be good yields?

In addition, the absorption of nutrients by Cordyceps militaris depends on the enzymatic decomposition and absorption. The medium's moisture content and pH are critical. Most of the current cultivation households are 30 grams of dry material, add 40 milliliters of water, this proportion of water content is a bit large, it will affect the respiration of mycelium, inhibit its growth, especially for the bulk of the now do not use bottle plant Culture medium, the effect is more pronounced. Some of them seem to be filled with hyphae at the bottom of the medium, which is only on the surface of the block and the interior is far from being fully penetrated. Of course, the moisture content should not be too low. A farmer in Shanxi Province uses 40 grams of rice and 30 milliliters of water. After sterilization, the rice is dry and the surface of bacteria is particularly fast. When the grass grows for 1 centimeter, it stops growing. The reason is that the water is not enough, and the hyphae are not enough to eat nutrients. The enzyme of Cordyceps militaris has the strongest activity in the PH value of about six. According to the temperature of the cultivation season, different pH values ​​should be adjusted because the pH of the culture medium will decrease by one to two after sterilization. These small aspects have a great impact on Cordyceps yield and quality.

Third, sterilization. Sterilization of the culture medium is the key to cultivation. Most of the current North Cordyceps cultivators use autoclave sterilization, which is fast and completely sterilized. However, the investment in autoclaves is large, and the number of single-use sterilization is small, and large-scale cultivation requires long-term non-stop sterilization. In this case, fuel and labor rise as the main cost. I refer to Other methods for sterilizing edible fungi. After absorption and improvement, medium-pressure sterilization methods are used. The investment in equipment is small. Three to five thousand bottles can be sterilized at a time. If a large block is used, one can sterilize one thousand at a time. To two kilograms of dry material. Can save a lot of fuel and labor.

Fourth, cultivation methods. I mentioned here that the cultivation method is the key to lowering costs and improving quality. The current cultivation households still basically use bottle plants, and the artificial proportion of bottle planting costs is the main proportion. From the start of cultivation to harvesting, it is necessary to go through bottle washing. Filling, sealing, sterilizing, inoculation, ingestion, harvesting, harvesting, and harvesting, each bottle must be bottled and bottled, especially in the small space of each bottle. Need a lot of labor. According to the cultivation of 10,000 bottles, but also the material of 300 kilograms. The large-scale cultivation method I used completely freed the bottle from the shackles of the bottle. One kilogram of dry material can be completely sterilized at a time. Two people can easily complete the operation one day after inoculation, and the period from the beginning to the end of inoculation can be up to one week. This not only saves a lot of labor, but also for the medium, due to get rid of the shackles of the bottle, relatively loose particles, bacteria on the fast, eating uniform, thick mycelium vitality, infection rate is low. The late management adopts unique open management, because of its openness, large space, abundant oxygen, good primordial differentiation, dense, thick and long grasses, and large nutrient content in the medium pad, high grass yield and good quality.

In short, the cost reduction in the cultivation of Cordyceps militaris should begin with the reduction of labor costs and the reduction of investment. This is a series of operational processes. It should learn more from absorption, and can not only reduce a certain step step by step or reduce the quality of raw materials to reduce costs. In order to improve quality, it is a series of operations. From the beginning of the production of bacteria to the management of the entire process, every detail and step in place have an impact on the quality of the grass and cannot be neglected. support hotline. 13333872995.

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