In this research we studied and fabricated a small vacuum coating system which is suitable for small pieces of the samples. It can help us to save in both cost and time for coating materials in each run. The home-built system consists of (1) a two-stage rotary pump used as a roughing and backing pump for a vacuum chamber and (2) a diffusion pump. The ultimate pressure of this diffusion pump is about 10-7 torr. From the result of testing the fabricated vacuum system it is found that the chamber pressure under the atmosphere can get down to 2.2 x 10-2 torr in 6 minutes by the rotary pump. The pressure inside the chamber is continuously lower to achieve 4.5 x 10-5torr in 30 minutes by the diffusion pump. Moreover we did further testing the system by coating pure aluminum (99.999%) on a Si (100) substrate using a resistive heater source made of tungsten with applied voltage and current of about 2.19 V and 110 A respectively. The aluminum surface has been investigated by SEM and AFM.

Man Lueat (Dioscorea alata) flour is a biopolymer material that can be formed into an edible film. It can be contacted directly with food consumed and naturally biodegraded. The aims of this research were to study the effect of physicochemical mechanical and thermal properties of edible film from Man Lueat flour. The film forming solution was prepared by Man Lueat flour at 4% w/w. The glycerol was used as a plasticizer. It was studied at 3 different levels; 30 40 and 50% w/w of Man Lueat flour. The film forming solutions were formed using the solution casting method and dried at 50 °C for 16 h. Results showed that the glycerol content at different levels of the edible film from Man Lueat flour had no effect on the thickness color transparency and elongation at break. However the moisture content water solubility swelling property and water vapor permeability of the film tended to increase when increasing the glycerol content. In contrast the Young’s modulus and tensile strength of films tended to decrease significantly when the glycerol content increased. Thermal properties were found that decomposition temperature of films occurred 2 stage; the first stage occurs between 50 to 130 ° C and the second stage occurs between 263 to 315 ° C. The analysis of FT-IR showed that the different levels of glycerol affected the structure of the film (3278 cm-1). Therefore the edible film from Man Lueat flour can be applied as a food packaging material to protect the quality of food products.

The proposes of this research were to study the development of bag products with textiles fibers and fabrics from decorative flowing water-resistant coating to promote community economy in Buri Ram Province. With the objective To study the process of producing yarn from fibers from the flow source To design and develop textile and bag products from yarn from the Lai Ton To study the effect of coating with waterproofing on bag products using textiles fibers and fabric from the flow. And to transfer knowledge and technology for utilization to community groups and interested people in next fiscal year This research can be summarized as follows: 1. The study of Ton Lai found that most villagers grow Lai Ton and make products as a supplementary career. In using this flow source in this research the researcher used a large flow source with a diameter of about 1 hour and can be separated into 4 small strands for research and production. The dyes used are synthetic because they will get fresh colors save time and be consistent. 2. The researcher designed 2 designs of weaving designs with the idea of using the original pattern to add edit and then create the pattern that the community groups like and can actually produce it as a product. After getting the fabric pattern then design into 10 bags of women and men bags using leather as an ingredient Decorate the bag to look interesting increase the price and increase the target audience. Which will be different from the original. That uses colored fabric and striped fabric as decorative items. 3. Coating with waterproofing on the bag products with textiles fibers and fabrics from the flow found that the fabric that has been coated with water repellent. When pouring water on the water surface there is a clumping together. No water penetration through fibers. When wiping clean the fibers are still dry not wet. Which is different from fabric that has not been coated namely water is able to penetrate immediately and create moisture on the fabric surface. If stored for a long time it can cause mold. 4. Schedule of technology transfer with the plan to transfer the research in the budget year 2020. For 3 day knowledge transfer and workshop was 30 participants. The group consisted of weaving mats from Ban Bu community Chorakhe Mak Subdistrict Prakhon Chai District. Buriram province

Dipping of Nile Tilapia (Oreochromis niloticus) fillets in the mixture solution of 2.0% sodium pyrophosphate and 0.5%sodium triphosphate and coating with 0.00.30.60.9 % chitosan solutions drained packed in polyethylene bags well sealed stored at 4๐C for 15 days were evaluated. The results showed the moisture of all sample did not statistically difference and quite constant during storage. The pH and TVB-N value increased with the storage period for all sample Coating with low concentration of chitosan resulted in lower pH fillets than higher concentration. The decreasing of pH resulted in decreasing of Water Holding Capacity (WHC) of the fillets. Increasing chitosan concentration increased pH and WHC. The oxidation of the samples revealed that the Thiobarbituric acid(TBA) of 0.3% chitosan was maximum and lower with increasing of chitosan concentration. Increasing of TBA may be because of acidity of chitosan solution activated fat hydrolysis. Nevertheless chitosan coating effectively inhibited growth of microorganism in the fillets.