"I hope through our research, not only to revitalize the silk industry, to achieve large-scale production, but also to make expensive silk civilians." Speaking of silkworm breeding prospects, Xia Qingyou laborers innovative studio lead, Southwest University, Professor Xia Qingyou told reporters .
Founded in 2013, Xia Qingyou model labs, by the end of last year by the All-China Federation of Trade Unions as a national model worker demonstration lab, its function is relying on the South China University of New Silk Road, a major national scientific research topics for China's sericulture industry, major strategic needs and The urgent need of industrial transformation and upgrading, technological innovation, so that developed a new type of silk products to meet the needs of ordinary people.
Silk as a high performance natural protein fiber, known as the "Queen of fibers." Silk industry is China's traditional, characteristic and advantageous industries, with an annual output of 72% and 78% of the world's total cocoon and raw silk respectively. Unfortunately, however, as the world's number one silk powerhouse, consumption accounts for only 0.2% of silk products in major textile industries and is currently losing its mainstream consumption.
As the implementer of the National Silkworm Genome Project, Xia Qingyou set a goal for the team to fly silk into the home of ordinary people as soon as possible.
Conquer silk spinning technology into the big textile
However, the nature of protein fiber, resulting in silk with poor water absorption, easy to wrinkles, poor color fastness and other defects.So, in the past century, the silk processing technology from It is not compatible with the modern textile industry. "Dr. Wang Feng, a member of the studio, said that it is particularly urgent to reform the traditional processing technology of the silk industry to integrate it into the big textile industry.
To this end, studios and enterprises to carry out technical cooperation, has overcome a new type of silk production of non-woven fabrics and spinning, superabsorbent silk spinning and other key technologies, the conventional silk silk into a wireless textile, with silk non-woven Fabric instead of chemical fiber non-woven fabrics, integrated into the production of large textile industry, not only reduces the cost of traditional silk products, but also to maintain the advantages of breathability. The achievements have won 3 national invention patents, and at present one has already achieved the achievement transformation.
Recently, the reporter saw in the studio that the new type of silk textile that has been piloted by the textile enterprises has reached more than 30 kinds, including daily necessities such as towels, pajamas, socks, silk quilt and silk diapers, indicating that the new silk fibers Market potential.
Xia Qingyou introduction, change the processing technology, expand application areas, improve the added value of silk is the "New Silk Road" section of the industry, "Now, silk is in the critical period of transformation and upgrading, the most urgent task is to make silk products into the homes of ordinary people, let This ancient, traditional industry revitalized. "
Retain antimicrobial properties in combination with medical care
In 2003, Xia Qingyou and his team worked together to draw the world's first silkworm genome-wide framework map. This is another major achievement of our country following the Chinese Genome Human Genome Project and the Rice Genome Project. In 2008, the team completed the silkworm genomic fine mapping through international cooperation. In 2009, 40 silkworm genome genetic variation maps were completed. The silkworm genome project "Trilogy" results, in the history of sericulture science has a significant basic scientific value and industrial value.
"Silk itself has a natural antibacterial properties, but the traditional processing technology can not save this feature." Wang Feng said that for this reason, the research team to use the antibacterial properties of silk, developed a new type of medical materials.
"This new type of medical material is good for wound healing of patients." Xia Qingyou said that they hoped to build a new "silk" that includes science, technology, industry and culture with the help of traditional Chinese culture such as sericulture the road".
Xia Qingyou team in silkworm functional genomics research made important progress is being clear step by step: identification of the silk gland specific, developmental metamorphosis, sex determination, immune resistance and other important economic traits related genes 3000, put forward its molecular network regulation approach ; Obtained more than 40 key genes such as the structure, regulatory methods and biological functions and other important data; complete silk fibroin synthesis, immune and other key gene function analysis and verification, access to more than 20 functional genes specific interference results and more than 30 A transgenic system; completed the body color, nerve conduction and other important mutations in the positioning of the gene cloning.
On this basis, at present, the team cultivated more than 40 varieties of practical green silkworm cotyledons, gaining anti-virus genetically modified material, increasing the production volume of cocoon silk and bioreactor materials, etc., which are the long-term development and space for the silk industry Development laid the foundation.
Improved variety to promote efficient production scale
Many years of experience in deepening the rural sericulture market led Xia Qingyou to find that on the one hand the scale is not high enough to make the silkworms susceptible to mass deaths and threaten the technical risks of sericulture; on the other hand, the sericulturist must sell out in the cocoon week, Otherwise, silkworm pupa cocoon and cocoon ruined, silkworm farmers will pay hard.
In response to these issues, Xia Qingyou led the team through improved varieties, genetic modification, improve the silkworm antiviral and food adaptability, make them grow faster and develop faster, and eat less spit silk more. These technologies are integrated to help sericulturists achieve a moderate scale and benefit sericulture. At the same time, through the development of processing technology and small cocoon processing machines, silkworm cocoon processing can help silkworm farmers at home to improve their market competitiveness.
The key reason why silk can not form large-scale and high-efficiency production in the big industrial age lies in the fact that the silkworm cocoon can not be processed into silk by the way of textile. The traditional processing methods such as cocooning, reeling and weaving are discarded by the times inevitably. "Our team finally overcome this challenge, and now we can make silk like cotton directly textile processing, like other fibers can be integrated with the textile industry." Xia Qingyou said.
With the promotion of new silk products on the market, the studio is currently cooperating with a number of domestic units engaged in the production of silk products, biomedicine and biopharmaceuticals to actively promote the industrialization of new silk products so as to generate economic benefits as soon as possible And social benefits.
"Our original intention is to reduce production costs, refining processing technology, so that ordinary people as early as possible to enjoy cheap silk products." Innovative research and development of silk in the future, Xia Qingyou full of confidence.