Microbial fermentation synthesis of degradable plastics refers to the use of specific microorganisms to raw organic matter as food, through fermentation synthesis of polymer plastics.

　　Microbial synthetic polymer materials mainly include microbial polyester and microbial polysaccharide, among which the typical Polyhydroxyalkanoic acid (ester) - PHA.

　　The general structural formula and molecular formula of PHA are shown in the figure above, in which R is n-alkyl side chain, ranging from methyl to nonyl, and N is about 700-12000. PHA materials are divided into different PHA according to the length of R group, comonomer and chain in the molecular chain.

　　PHA performance

　　1) Crystallinity

　　PHA is a kind of thermoplastic crystalline polymer material, which is mainly extracted from organisms with high purity and high optical rotation.

　　2) Thermal stability

　　The thermal stability is poor, and the heat resistance is different with the different monomer units and the different connection mode between monomer units.

　　The glass conversion temperature is between - 30 ℃ and 0 ℃, the melting point is between 98 ℃ and 160 ℃, the thermal decomposition temperature is above 185 ℃, and it decomposes rapidly at 250 ℃, so the processing range is narrow. It is difficult to process.

　　3) Biodegradability

　　Thermal degradation, hydrolysis, environmental degradation, enzyme degradation

　　domestic

　　Microstructure workshop

　　The main laboratory is microbiological laboratory, which has been engaged in the research of "microbial synthesis of PHA degradable plastics and its application" for a long time. Our laboratory has published more than 280 papers on microbial technology and biomaterials in international academic journals, and more than 12000 papers on web of sciences have been cited.

　　We have obtained 30 authorized patents and 40 public patents. Under the leadership of Professor Chen Guoqiang, who is in charge of the laboratory, the developed technology has been used in a number of companies for large-scale production of microbial plastics polyhydroxyfatty acid esters (PHA), making China the most developed country in the field of PHA in the world

　　Home, and its medical application research to do more countries.

　　Main products:

　　Mp34hb 10 (fully biodegradable semi crystalline polyhydroxy fatty acid ester (PHA) powder)

　　PHA products include: poly-d-3-hydroxybutyric acid PHB, D-3-hydroxybutyric acid and d-3-hydroxyvaleric acid 3HV, copolymer PHBV, D-3-hydroxybutyric acid and d-4-hydroxybutyric acid copolymer p3hb4hb and more than 150 kinds of PHA monomers.

　　3-hydroxybutyric acid (3-hb)

　　Medfa

　　Zhuhai maidefa Biotechnology Co., Ltd. was established on March 25, 2019. The business scope of the company includes: business scope recorded in the articles of association: R & D, production and sales of polyhydroxyfatty acid ester (PHA) and its upstream and downstream materials; Production and sales of food and beverage raw materials; R & D, production and sales of disposable medical and health products, medical devices, new products of sustained-release drugs, medical and health materials, medical consumables, etc.

　　Professor Chen Guoqiang is the main shareholder of medfa company and the chairman of science and Technology Committee. Professor Chen Guoqiang's PHA technology makes China the most advanced country in the field of PHA in the world and the country with the most medical application research.

　　Main products:

　　Standard mp34hb 10

　　Medical mp34hb 100

　　Food and beverage grade ketone d3hb (for laboratory and R & D applications only)

　　COFCO biochemical

　　COFCO Biochemistry (Anhui) Co., Ltd. is a large backbone enterprise involved in the deep processing of agricultural products in China's biochemical field and a national leading enterprise in agricultural industrialization. It was established on August 28, 1998, and its shares were listed on Shenzhen Stock Exchange on July 12, 1999. The company has total assets of 7.2 billion yuan and nearly 10000 employees. Its main production bases are citric acid production area, amino acid production area, fuel alcohol company and thermal power company in Bengbu City; Enterprises outside Bengbu include Ma'anshan biochemical company, Suzhou biochemical company, Fengyuan oil company and Dangshan pear company; There is a national enterprise technology center. On December 8, 2006, COFCO Group signed an agreement with Bengbu Municipal government and Fengyuan Group to transfer 200 million shares of COFCO biochemical (20.74% of the total share capital) held by Fengyuan Group, becoming the largest shareholder of the company. In 2010, the company achieved an operating income of 6.7 billion yuan, of which 186 million US dollars were earned through export. Research and development of PHB technology, no related products.

　　Beijing Blue Crystal

　　Beijing bluecrystal Microbial Technology Co., Ltd. was established on October 28, 2016, and its registered office is located at the first floor of building 4, No. 20, shengshengyuan Road, Life Science Park, Changping District, Beijing. The business scope includes technology development, technology promotion, technology transfer, technology consultation and technology service; Sales of self-developed products; Product design; Model design; Packaging and decoration design; Conference services; Development of natural science research and experiment; Engineering and technical research and test development; Agricultural scientific research and experimental development; Medical research and experimental development; Organize cultural and artistic exchange activities (excluding commercial performances); Application software services; Software development; Software consulting; Educational consultation (except intermediary services)( The main body of the market independently chooses the business items and carries out the business activities according to the law; For projects that need to be approved according to law, business activities shall be carried out according to the approved contents after being approved by relevant departments; It is not allowed to engage in the business activities of the projects prohibited or restricted by the industrial policies of the state and this Municipality.) Beijing bluecrystal Microbial Technology Co., Ltd. has invested in three foreign companies.

　　PHA products are mainly PHA masterbatch.

　　Tianan biology

　　The company is committed to the production and application development of polyhydroxybutyrate co valerate (PHBV). The fermentation facility is located in Beilun port, Ningbo City, the people's Republic of China, with an annual capacity of 2000 metric tons.Since its establishment in 2000, it is recognized as the largest PHBV manufacturer with an annual capacity of 2000 metric tons. In 2004, it became the first company in the world to use water-based extraction technology to realize the commercial production of PHBV, and successfully obtained patents in the world. The main PHA products are bio based and biodegradable, so they can meet the needs of today's environmentally conscious companies looking for environmentally friendly solutions.

　　abroad

　　Newlight

　　Newlight began in 2003. In its early days, it discovered that microbes in the ocean use air and greenhouse gases to make a substance called PHB every day: a fusible energy storage material that can be used to replace things such as plastics and leather. Due to the immature technology, after ten years of efforts, in August 2013, the company launched the technology on a large scale for the first time: using microorganisms in the ocean to produce PHB, air and methyl greenhouse gases dissolved in brine.

　　In the next two years, he won many awards, including Novartis College annual biomechanics award, Technology Pioneer Award, new energy Pioneer Award, etc.

　　In 2014, the company developed a kind of "air carbon" plastic, which can not only purify greenhouse gas waste emissions, but also come from greenhouse gas itself, and use greenhouse gas as a resource to help solve plastic pollution and climate change.

　　Main products:

　　Straws, tableware, glasses and leather, no animal and no crop protein

　　It is understood that the company is planning to launch textiles for biomedical and personal care applications.

　　RWDC Industries

　　Headquartered in Singapore, rwdc industries is a biotech start-up that develops and manufactures commercial biodegradable plastics.

　　Rwdc industries was founded by Roland wee and Dr. Daniel Carraway in 2015. Today, rwdc's PHA is mainly made of waste edible oil and has been certified by t Ü vaustria. It can be completely biodegradable in soil, water and marine conditions without leaving any toxic residues.

　　In May 2020, we will complete the two-stage round B financing of US $133 million.

　　In October 2018, we successfully completed the US $13 million round of A2 financing jointly led by venture capital firm Vickers venture partners and China Economic Cooperation Group (WI Harper Group). The round of A2 financing funds will be mainly used to provide PHA's production capacity in Louisiana and Georgia to reach 2000 tons per year, So as to become one of the largest PHA manufacturers in the world in early 2019.

　　To produce Solon, an environmentally friendly petroleum derived disposable plastic substitute.

　　The PHA produced by rwdc is widely used, including disposable food service products, such as straws and cup covers, as well as paper coatings, food and beverage packaging, consumer goods packaging, diapers, wipes and agricultural mulching.

　　Danimer Scientific

　　Danimer scientific operates two facilities with a total area of more than 200000 square feet, including state-of-the-art laboratories, manufacturing facilities and test space. Located on 20 acres of the headquarters in Bainbridge, Georgia, in the southeastern United States. In the early stage, danimer scientific cooperated with NatureWorks to develop corn based PLA resin for hot drink cups, including ecotainer series of food service packaging materials of international paper companies. In 2007, the company purchased intellectual property rights from P & G, which increased the bioplastic technology platform. These include a specific type of PHA called medium chain length polyhydroxyalkanoates (MCL PHA) or nodax ™。

　　Today, danimer scientific has 125 patents in nearly 20 countries.

　　The main products are as follows:

　　Extrusion coatings, extrusion laminates, film resins, oil well polymers, injection resins, additives

　　Products under development:

　　Thermoforming resin

　　Metabolix

　　Founded in 1992 and headquartered in Cambridge, Massachusetts, USA, it is an advanced biomaterial company focusing on providing sustainable solutions for the plastics industry.

　　Metabolix materials has core competitiveness in microbial genetics, fermentation engineering procedures, chemical engineering, polymer technology, plant genetics and botany. Metabolix is committed to integrating its biotechnology research with chemical engineering and industrial practice in the real world. In addition, mattpolis materials has created an extensive intellectual property portfolio to protect its innovation, which combines with technology as a valuable foundation for its business and future industrial cooperation.

　　Metabolix was founded to make full use of renewable resources in natural systems to produce complex biopolymers. The company focuses on the research of polyhydroxyalkanoates (PHA) family products, which occur naturally in living organisms and have chemical properties similar to polyester. At present, metabolix company has demonstrated the feasibility of industrial scale production of PHA biopolymer.

　　At present, the company is committed to the research, development and commercialization of its mirel 8 PHA biopolymer as performance additive to reduce production cost or improve performance in target applications, such as in the production process of PVC and PLA.

　　Bosk Bioproducts

　　On July 18, 2019, the Minister of natural resources of Canada, the honourable Amarjeet SOHI, announced that in the first phase of the bioplastics challenge, he would invest $150000 in bosk bioproducts to help small businesses reduce pollution of plastic materials by transforming forest residues into sustainable domestic products. Laurence boudreault, general manager of bosk bioproduits, said that in accordance with recognized compostability standards, a formulation based on polyhydroxyalkanoates (PHA) and wood by-products was developed to develop bioplastics that can be used to produce a variety of plastic objects.

　　Bosk bioproducts is a Canadian company that develops, manufactures and markets environmentally friendly bioplastic products that are completely compostable, non genetically modified, non-toxic and made from renewable materials in the pulp and paper industry.

　　Genecis

　　Genecis is a student start-up company founded by engineers and graduates from utsc. Genecis currently has two locations. Their main laboratories are located in tofbanting and best building. They work with pilot scale bioreactors, and another environmental science and chemistry building in uoftscarborough is responsible for research and development. The company will open its demonstration plant later next year and will convert three tons of organic waste into PHA each week.

　　A small bioreactor at genecis laboratory in uoftscarborough is used to help optimize its production process. Food waste can be turned into biodegradable plastics (PHA) for making toys, flexible packaging, 3D printing wires and medical applications.

　　TerraVerdae Bioworks

　　Terraverdae is committed to the development of biodegradable plastic bags for seedling cultivation. As an innovative biopolymer and bioplastics company, terraverdae is committed to the development of sustainable and biodegradable polymers, plastics and renewable carbon sources including waste. Terraverdae has advanced equipment and leading expertise in industrial biotechnology, biotechnology development and advanced polymer science, with a diversified team of world-class professionals.

　　Terraverdae has received $4.5 million from the Canadian Department of natural resources program (CGP), advisory services and R & D funding from the National Research Council of the Canadian Industrial Research Assistance Program (NRC Irap), and other investors to expand its product development facilities in Edmonton. Through this investment, terraverdae has strengthened its use in agriculture, forestry, food packaging, food processing, food processing, etc In addition, we also customize and design the unique fine-tuning formula of strength, elasticity and impact resistance of bioplastics.