Wujiang City, Jiangsu: Scientific Research Opens Up A Broad Road For Silkworm And Cordyceps Militaris

Cordyceps sinensis is a traditional valuable tonic.

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Artificial cultivation of silkworm Cordyceps militaris based on Shanghai Academy of Agricultural Sciences

Yang Zugen, general manager of Wujiang home and sericulture co operative society.

His original business was silk quilt, and now his identity is the "leader" of artificial cultivation of local silkworm and Cordyceps militaris.

Yang Zugen told reporters that five or six years ago, the silk produced by his co operatives was also known locally. Although sales and benefits can not be compared with silk production leading enterprises, it is also a frequent visitor to China's agricultural products fair.

In recent years, silk market has been increasingly fierce competition, which makes Yang Zugen soberly aware that if we continue to take a single old road, we will surely be eliminated in the near future.

An accidental opportunity, he saw an article about Cordyceps militaris in the media. The article said that China's export of frozen silkworm chrysalis to Japan and South Korea is now mainly used for Cordyceps cultivation. At present, these two countries are increasing the research and development efforts of Artificial Cordyceps.

The article also says that the American Cordyceps, extracted from the Artificial Cordyceps, sell 4500 yuan per 0.1 grams of Cordyceps.

The article let Yang Zugen, who was "ready to move", brighten up an idea: relying on existing Sericultural Resources, cultivating silkworm Cordyceps militaris, elongating the silkworm industry chain and enhancing the added value.

It is known that Cordyceps militaris is also known as Cordyceps militaris.

There are two main methods of cultivation, one is rice and wheat as medium, the other is fresh living silkworm chrysalis as medium.

Because the growth of natural Cordyceps is a process of infecting Cordyceps sinensis in the course of overwintering, so the growth structure of silkworm Cordyceps militaris is almost the same as that of Cordyceps sinensis.

In May 2009, the home and sericultural cooperative carried out scientific research on the basis of the Shanghai Academy of Agricultural Sciences, and broke through the key technical problems such as culture medium and culture conditions, screening and rejuvenating high quality strains, and successfully developed artificial cultivated silkworm Cordyceps militaris.

"It's useless to speak well on the lips. There must be a professional test report."

Yang Zugen told reporters that after the successful cultivation of silkworm Cordyceps militaris, the first thing he did was to pay for the tests himself.

Finally, the Ministry of agriculture's agricultural product quality and safety inspection center and the Shanghai Medical University sampling inspection report showed that silkworm Cordyceps militaris contained abundant protein and 10 kinds of amino acids, especially cordycepin, cordycepic acid, Cordyceps polysaccharide, SOD enzyme and adenosine, the five main indexes all reached or exceeded natural Cordyceps sinensis.

Silkworm Cordyceps militaris is the most ideal substitute for wild Cordyceps militaris.

In those days, Yang Zugen appeared on the seventh China International Agricultural Products Fair with his silkworm chrysalis.

With living silkworm chrysalis as the medium, various links should be paid attention to.

A silkworm chrysalis can become "Cordyceps militaris" after sterilization, cocoon cutting, inoculation and cultivation.

This process is simple, but the actual operation is very exquisite, especially in the production process and environmental control, very strict requirements.

"To successfully cultivate silkworm Cordyceps militaris, the first step is to make good selection."

Yang Zugen said that the cocoon used to cultivate silkworm Cordyceps must be fresh cocoons, preferably cocoons produced by silkworms after pupation.

The living silkworm chrysalis is neither old nor tender, which is conducive to the growth of Cordyceps sinensis in the future.

After the cocoons were selected, they began to cocoon and inoculate.

The fresh silkworm chrysalis, which was removed by cocoon cutting, was injected into the fungus after being purified and rejuvenated, and then it could be cultured in the culture room.

Here, the whole process of Cordyceps militaris is only half done. Next, silkworm Cordyceps militaris must grow in a completely pollution-free environment under certain conditions of temperature, humidity and light.

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Yang Zugen told reporters that after more than 10 days of cultivation, the Cordyceps sinensis would be full of pupae, when the very soft pupa became very hard.

This process of pupa hardening indicates that the Cordyceps sinensis has basically survived.

Next, bacteria will react with animal protein in silkworm chrysalis, and Cordyceps grow out of the pupa.

At first, the Cordyceps grow white. Under the action of light, they will gradually turn into purplish red. After a month's cultivation, the Cordyceps militaris can grow to harvest.

"In the process of artificial cultivation of Cordyceps militaris, there are three stages that need special attention."

Yang Zugen said that silkworm chrysalis, which has just been vaccinated, should prevent bacterial infection.

Once infected, the silkworm chrysalis is "scrapped".

In the first few days after hardening, special attention should be paid to the change of pupa. If there are abnormal silkworm chrysalis, it must be "isolated" immediately, otherwise it will infect other silkworm chrysalis.

When the Cordyceps grow out of the pupa and turn white in its head, it is the best nutritional state when it is not blooming. At this time, it is necessary to pick in time. If the time is too late, the nutrients of Cordyceps will be lost.

Reporters learned that, at present, home and sericultural cooperatives and the Shanghai Academy of Agricultural Sciences cooperative research and development of silkworm Cordyceps militaris has been successfully launched into the market, is now declaring a national invention patent.

Extending the industrial chain and increasing the added value to realize the great exploitation of silkworm resources

How much economic benefits can it bring to the cultivation of silkworm Cordyceps militaris? Yang Zugen gave the reporters an account.

"The fresh income of a fresh cocoon is about 2000 yuan.

If these 50 kilograms of fresh cocoons are made into silkworm Cordyceps militaris, net income can reach 20 thousand yuan, and profits will increase 10 times.

Yang Zugen told reporters that the family and sericultural cooperatives now have 2000 mu of silkworm base and 3000 square meters of production and research base.

In order to ensure the quality of silkworm Cordyceps militaris, the cooperative requires more than 420 members to unite their medication in order to prevent disease. The cooperative will buy cocoons at high price to ensure the quality of silkworm pupa.

According to Yang Zugen's plan, next, his silkworm Cordyceps militaris will be industrialized and popularized. Through the production mode of "scientific research institutions + cooperatives + farmers", the silkworm pupa strain will be supplied to farmers uniformly, and technical training should be carried out to them. After silkworm Cordyceps cultivation is successful, the co purchase, unified packaging and unified sale of the Cordyceps militaris should be carried out, so as to expand the cultivation scale of silkworm Cordyceps, and form a complete industrial chain of silkworm Cordyceps cultivation and deep processing, so as to drive local sericulture farmers to become rich together.

In the near future, a Sericultural Science and Technology Industrial Park will be set up by planting and cultivating silkworms, silkworm quilts, silkworm Cordyceps militaris, and deep processing of silkworm Cordyceps.

According to the plan, the first phase of the industrial park covers an area of 100 mu, of which 50 mu is mainly used for demonstration and cultivation of silkworm Cordyceps, technical training centers, mulberry ornamental plants, and mulberry ecological chicken breeding.

A 8000 square metre cultivation facility for silkworm Cordyceps militaris was established in the first phase of the plan. It is expected to produce 2000 kg of dried Cordyceps militaris annually, with an output value of 30 million yuan.

The silkworm Cordyceps demonstration area and technology training center will drive more than 250 households to start their own businesses, increasing the income of farmers by about 5000000 yuan.

"A complete fresh cocoon, its silkworm chrysalis can cultivate Cordyceps, and" damaged "cocoons can also be used to make silk quilts, which will not waste resources at all.

Yang Zugen believes that the successful cultivation and popularization of silkworm Cordyceps militaris is of great significance for extending the sericultural industry chain, realizing the all-round development and utilization of Sericultural Resources and changing the traditional agriculture to efficient agriculture.