The objective of this research was to study formulas basic production process and nutrition value and consumer test of frozen Chaya vegetable cream soup. The results indicated that color aroma taste consistency and overall formulas 2 had scored higher than formulas 1 and formulas 3 (p≤0.05). Then formulas 2 was selected for the next step study. Comparison of old frozen Chaya vegetable cream soup formulas 2 and adjusted formulas 2 which according to expert advice by blending from 2 minutes to 4 minutes add unsalted butter add cooking cream and reduced pepper from 5 grams to 3 grams in terms of color aroma taste and overall liking are not different except the texture of the soup. Frozen Chaya vegetable cream soup has moisture 87.60% fat 1.45% crude fiber 1.84% ash 1.07% protein 1.11 % calcium 85.37 mg/kg iron 0.44 mg/kg potassium 128.34 mg/kg and total fiber 1.19 mg/kg. Frozen Chaya vegetable cream soup has light green color and cyanide substance still was 0.1 mg/kg which is safe for the consumer. Comparison of preference score between Frozen Chaya vegetable cream soup and non-frozen found that was no difference (p ≤ 0.05). The consumer test of them are female between 25-35 year old graduated bachelor degree a company employee and income 20001-25000 THB per month consumer from this group are satisfied with high scores for cream soup. The consumer is interested in frozen Chaya vegetable cream soup because this is a new product and price 45 THB is valuable. The consumer would like to have a frozen Chaya vegetable cream soup sole at the supermarket. The cost for the product per 1 cup is 19.07 THB and the sale price is 45 THB.

The tungsten carbide powder which recycled from the scarps of cemented tungsten carbide produces the purity of 99%. Using this tungsten carbide powder to manufacture a cutting tool and test its properties are the main objective of this work. Based on the standard SNMG 120408 the cutting tool with the dimension of 12.7x12.7x4.76 is fabricated. With the 100 hours of Ball milling grinding Cobalt mixing and sintering at 1430 °C the experimental result is impressive. At 15% of mixedcobalt the cutting tool with the hardness of 2031.6 HV be able to cut S45C steel in the feed rate of 0.2 meters per revolution and 45 m/min in the cutting speed. Besides that it provides the depth of cut of 0.25 mm and when it reaches the cutting distance of 4200 mm the surface roughness is 3.65 μm. In comparison with the cutting tool made of imported tungsten carbide powder which has a hardness of 1254 HV it turned out that our cutting tool has the equivalent quality in terms of hardness and wear resistance. Hence this work is considered to be a material development and a tungsten carbide cutting tool manufacture those would be the vital base to lead us to a commercial production.

This research aimed to investigate the suitable method to product osmotically dehydrated banana peels and determine its shelf life as well as consumer acceptation. It was found that the proper method was the slow osmotic dehydration process with 30 40 and 50% of syrup (sucrose solution). This method led to the highest appearance color and flavor scores as accessed by the consumer. Therefore the slow osmotic dehydration process was selected for further study relating to the ratio between salt and malic acid (3:2 3:3 and 2:3 of syrup weight). The result show that no differences in appearance color flavor and texture scores were found among treatments however the sample treated with salt and malic acid in the ratio of 3:3 obtained the highest taste score. Thus the suitable process to produce the osmotically dehydrated banana peels was slow process with salt and malic in the ratio 3:3. According to the shelf life study the sample (100g) packed in metallic foil still compiled with Thai community standard of fruit and vegetable products during 12 weeks of storage under 25-30 °C. In addition the consumers also accepted the selected osmotically banana peel product.

Development of table cloth products from Batik tie-dyed cotton fabric with waterproof finishes aimed 1) to study waterproof finishes process to Batik tie-dyed cotton fabric 2) to test physical properties of Batik tie-dyed cotton fabric and 3) to study satisfaction of consumer to table cloth products from Batik tie-dyed cotton fabric with waterproof finishes. Prototype of table cloth products and questionnaire was used as the tools in this research. The samplings for this study were the 323 consumers from accidental sampling in Faculty of Home Economics Technology and Faculty of Architecture and Design Rajamangala University of Technology Phra Nakhon. Data was analyzed by percentage mean and standard deviation. Reported of physical properties testing of Batik tie-dyed cotton fabric with waterproof finishes as follows; colorfastness to water testing changed in color was grade 4-5 dimensional changes after laundering testing decrease 1.14 percentage in the length and 0.48 percentage in the width colorfastness by hot pressing testing; dry pressing damp pressing and wet pressing changed in color was grade 4-5 and water resistance testing found that surface area having wet patches small. The results from study satisfaction of development of table cloth products from Batik tie-dyed cotton fabric with waterproof finishes were found that; the sample age between 21-30 years bachelor degree education level status of student and monthly income 100001-20000 baht. Consumers purchased and used Batik tie-dyed product categories of clothing agree with table cloth products from Batik tie-dyed cotton fabric with waterproof finishes and selected to buy after this product launch to market from personal preference reason. Color and design price appearance and special properties are the reasons to choose. The total satisfaction to products was highly satisfied (mean 3.65).

The research was aimed to: 1) create a standard formula of Sangyod brown-rice flour Thai Lodchong 2) study the change during storage and 3) study the consumers’ acceptance. The physical properties chemical composition sensory evaluation and microbiological quality were determined. The study showed that Lodchong in which the substitution of Sangyod brown rice flour at 50% by weight of rice flour and 30% of arowroot flour for the total flour weight were used was most accepted in all aspects. The product has a slight physical conversion at 7 °C for not longer than 48 hours. All the microorganisms yeast and mold found were still safe for consumers and none of Escherichia coli was detected in the product. Nutritional analysis results revealed that 100 grams of the product contained 78.64 kcal energy 0.98 g protein0.07 g fat 18.03 g carbohydrate dietary fiber 0.71 g and 11.63 mg anthocyanin. For consumers’ acceptance it was found that the product was much accepted and 99% of the consumers were interested to buy the product at 22 bath per 180 ml cup.