The changes of chemical structure under the circumstances defined in particular, various properties of plastics decreased within a time interval. By changing the chemical structure, resulting from the work of microorganisms in nature only. Can be measured by a standard test method to measure carbon dioxide or methane gas that occurs.This article is still a project, you can help Wikipedia by adding information. Bio-compostable plastic.The petrochemical industry is the industry that started from crude oil and natural gas into synthetic route is a continuous product development, materials and polymer fibers or various kinds of plastic that has a role in the daily life of human beings for over a hundred years.Throughout the past century. Humans have been found to limit the quantity of raw materials, crude oil and natural gas, which is estimated to need to. In addition, production processes, products from the petrochemical industry, especially the combustion also produces the accumulation of pollution, which has expanded into a broader ecological systems in the world. Make the new process invented and developed, including the creation of innovation to products from the petrochemical, integrated within a quick time. Is one thing that all countries need to develop? This is in addition to maintaining the environment of his country. Also means increasing the potential and opportunities for competitiveness will be linked to a leader in international trade economy.Bio-compostable plastic (biodegradable plastic) is one way to develop material for use to environmental conservation, both in the raw material. The production process and the process of eliminating the current bio-compostable plastic. Particularly attention from scientists as well as industry-leading designers all over the world by the compostable bioplastic produced from renewable raw materials can be produced in a new nature (renewable resource) energy in the production process and can degrade into carbon dioxide and water by microorganisms in the nature after use by bio-compostable plastic, it has a plastic equivalent from the petrochemical industry, traditional (Commodity Plastics) and can replace existing applications.When considering the country or group of countries, its core business, will see that as the bio-compostable bio-plastic, all policy. Research and development of industrial and building products to accelerate the replacement of plastic that is fast, and there are steps that are clearly pointing direction. Countries such as the United States, which is one of the leading countries in science and technology areas have as compostable bioplastic production. Starting a successful bio-compostable plastics production in the industry, such as CargillDow or companies use corn as the raw material, Natureworks to phlitkrot Lae Lae League motto motto and sufficient khaae CID (Polylactic Acid or PLA) while the company Metabolix Inc. is a leader in the production of bio-compostable plastic type enough CDs out in the Al League hydro Canopus (Polyhydroxyalkanoates or PHAs) 8.In addition, the United States has set the country on a policy level, the goal is to allow the use of products from biomass (biomass) from 5% to 12% increase in the year 2002 as the year 2010, and 20% in the year 2030 countries European Union has issued measures to give European car must consist of parts that can be used repeatedly (reuse) or reuse (recovery) of not less than 85 percent by weight of plastic inside this January 1, 2006, all compostable bio guidelines that correspond to the above policies.From the study and analyze the data in the preliminary national innovation Agency. Biological materials, which can be concluded that the development of business innovation in modern chess is to create added value to the raw materials, the country's agriculture has 3 types.1) enough League Lae (Polylactic Acid), khaae CID motto or PLA material used in the production of Polylactic Acid (PLA) is flour that comes from the emerging natural resources (renewable resource), which include plants with starch as the main element, such as corn and cassava, with the route starting from the grinding or crushing plant, a flour dough, and then release a sugar fermentation (fermentation) and with a Lactic Acid microorganisms which are highly similar to beer fermentation Lactic Acid is then led through a chemical change to the structure, as a new project.Create a chemical called lactide ring then brings a lot to pull the vacuum system to change the structure of a polymer is a long line up of lactide is called Polylactic Acid (PLA), which defines the length of the cable, as polymers to be what makes the property of PLA vary according to used the PLA can be the raw material for the manufacture of plastic products, as well as a plastic pellet from a petroleum well PLA also has special qualifications is clear. Do not degrade in the environment, but can also degrade when brought to the landfill on Earth.2) พอลีไฮดรอกซีอัลคาโนเอท (Polyhydroxyalkanoates) หรือ PHAs เป็นสารพอลีเมอร์ตั้งต้นที่สามารถนำมาใช้ผลิตผลิตภัณฑ์พลาสติกที่ย่อยสลายได้โดยบริษัท Metabolix Inc. ประเทศสหรัฐอเมริกาได้พัฒนาเทคโนโลยีการผลิต PHAs ได้ในระดับอุตสาหกรรม วัตถุดิบที่ใช้ในการผลิต Polyhydroxyalkanoates (PHAs) คือ แป้งหรือน้ำตาลที่มาจากทรัพยากรธรรมชาติที่เกิดขึ้นใหม่ได้ (renewable resource) ซึ่งได้แก่ พืชที่มีแป้งหรือน้ำตาลเป็นองค์ประกอบหลัก เช่น ข้าวโพด มันสำปะหลังและอ้อย เป็นต้น โดยมีกระบวนการผลิตเริ่มต้นจากการบดหรือโม่พืชนั้นให้ละเอียดเป็นแป้ง จากนั้นทำการย่อยแป้งให้ได้เป็นน้ำตาล และนำไปหมัก (fermentation) ด้วยจุลินทรีย์ชนิดพิเศษชื่อ Eschericia Coli ซึ่งกินน้ำตาลเป็นอาหาร และสามารถเปลี่ยนโครงสร้างทางเคมีของน้ำตาลภายในตัวจุลินทรีย์เองเป็น PHAs ซึ่งสามารถแยกออกมาได้โดยการกะเทาะแยกเปลือกนอกหุ้มจุลินทรีย์ออก เนื่องจาก PHAs มีช่วงอุณหภูมิในการหลอมเหลว (Tm) ที่กว้างตั้งแต่ 50 – 180 °C จึงทำให้มีคุณสมบัติในการนำไปเป็นวัตถุดิบสำหรับผลิตภัณฑ์พลาสติกได้หลากหลาย เช่
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