The objective of this research is to study the suitable production process in the production of Pad Thai sauce Crispy rice noodle sauce (Mee krob) and three mixed flavors sauce (Sam-rod) by using pineapples juice as the main ingredient. To study the quality of this finished three sauce products from pineapples. And to study the consumer test of pineapple sauce products. The results of the development of a suitable recipe for Pad Thai sauce production. From the evaluation of the sensory quality of Pad Thai sauce (9 points Hedonic scale). It was found that panelist accepted the appropriate amount of pineapple juice in the production of Pad Thai sauce at 30 % in all attributes in terms of appearance color smell taste texture and overall liking with an average score of 8.08 7.83 7.93 8.15 8.05 and 8.13 respectively which was at a high level of preference. Sensory evaluation of crispy rice noodle it was found that 75% of pineapples accepted for the source production in terms of appearance color smell taste texture and overall liking. With an average score of 7.89 7.79 7.88 8.03 7.98 and 7.93 respectively which are in the high level. Sensory evaluation of three mixed flavor sauce. It was found that panelist accepted 100 % pineapple sauce using pineapple juice in terms of appearance color aroma taste texture and overall liking. With an average score of 8.35 8.04 8.25 8.22 8.15 and 8.24 respectively which is in the high level. The results of the study of the quality of Pad Thai sauce crispy rice noodle sauce and mixed three flavors sauce that use pineapple juice as the main ingredient found that increasing the amount of pineapple juice affects the pH value of the products. All 3 types of sauce with the pH value are in the acid range. The microbial quality of all 3 types of sauces has passed the standard of community product standards set by the Ministry of Industry. The results of the consumer test on pineapple sauce products. The majority of consumers are female. Most of them are between 19-29 years old and in the age of 40-49 years. In education the majority of consumers had a bachelors degree. Regarding marital status most of the respondents are married. In a career most of them have a daily occupation and government service/state enterprise. Most of the income of the consumer is less than 20000 baht. Consumers like the characteristics of 3 types of instant pineapples sauce products at the most like to most level. And most consumers are accepting all 3 types of pineapples sauce. If available most consumers buy because of the ease of use/ reduction of the process. The price of 3 kinds of ready-made sauce products from pineapples accepted by consumers at the price of 50 baht/bottle.

The objectives of this special project were to investigate basic formulas of Chendol and to study the content of Supplementea of Red hawm rice in lodchong Singapore at different four proportins including control 15% 30% and 45% of red jasmine rice. Randomized Complete Block Design (RCBD) was used as the research design. Sensory evaluation was conducted to assess appearance color flavor taste texture and over all preference with 9-Point Hedonic Scale. 80 tasters were instructors and students in food and Nutrition Faculty of Home Economics Technology Rajamangala University of Technology Phra nakhon. Cata collected were analyzed to determine mean ( X ) and Analysis of Variance (ANOVA). The statistical comparison was conducted by using (Duncan’s New Multiple Range Test DART) with a significance level of 0.05. Data were analyzed through statistical software packages. The results of studying basic formulas indicated that tasters preferred the 10% red jasmine rice formula in terms of appearance flavor taste texture and over all preference with mean scores of 8.39 8.42 8.34 829. 8.47 and 8.42 respectively. The preference was at a moderate level. When ANOVA and statistical comparison were considered. There were the differences in appearance color. flavor taste texture and overall preference with a statistical significace level of 0.05. A study of the physical properties and chemical properties of red jasmine rice in the Cendol showed that the color properties of res jasmine rice in Cendal based on the brightness (L * ) the reduction was 30% lower than the control formula When Adding red jasmine tice the color would be concentrated. The value of a * the formula of adding quantity of red jasmine rice in the Cendol with 30% was close to red color over control formula The value of b * when the amount of jasmine rice in the Cendol was increased by 30% the b * value decreased because of the high amount of anthocyanin resulting in lower b * Anthocyanin was a water-soluble pigment and was a naturally coloring substance. When analyzing the chemical composition control formula and the formula of adding quantity of red jasmine rice in the Cendol with 30%t the Cendol contained mare nutrients protein fat ash fiber and carbohydrates. The average was 0.46 0.68 0.12 1.70 and 36.45 respectively. There was a statistically significant difference (P≤0.05).

This research aims to develop the waste heat energy conversion device to generate electricity through a thermoelectric generator (TEG) which is called “CHEU. This device is applied to the LPG cookstove that serves as a waste heat source. The thermoelectric generator with 4 modules in series connection is used to convert heat energy to electricity. The present research shows a modification of the CHEU based on two concepts as follows: (1) re-design the structure for heat transfer improvement and (2) select the high capability of TEG to support a high temperature from a heat source as a result of (1). In this study the modified CHEU is called “MCHEU”. A heat-load condition is set as the gas pressure of LPG which varies in a range of 0.1 - 0.6 kg/cm2 and the throttle valve is fixed approximately at 40% of a fully opened throttle while the air entrainment is fully opened throttle. Also the water-cooling system is used for heat dissipation. Base on the performance evaluation of MCHEU the interesting results are drawn as follows: 1) the maximum temperature difference is on an average value of 278.5oC at a maximum heat load condition while a maximum voltage current and power are on an average value of 18.83 V 5.67 A and 107 W respectively. 2) The temperature difference of MCHEU is higher than that of CHEU with an average value of 50%. 3) The output power obtained by MCHEU is higher than that of CHEU with an average value of 52% and takes less time about 40% for fully charging a battery (12V 7.5Ah). Nevertheless MCHEU usage does not affect the thermal efficiency of a cookstove. 4) The efficiency of an energy conversion obtained by MCHEU is 20% which is higher than that of CHEU about 2%.

This research studies the production of bacterial cellulose from Acetobacter xylinum TISTR 975 with pineapple peel juice a low cost carbon source and coconut water as nutrient and carbon source. The factors influencing the production were studied including incubation time type of carbon sources and ratio of mixed carbon sources. In addition the characteristics of the produced bacterial cellulose were investigated using Fourier Transform Infrared Spectrophotometer (FTIR) Scanning Electron Microscope (SEM) Thermogravimetric Analyzer (TGA) Differential Scanning Colorimeter (DSC) and x-ray Diffractometer (xRD). It was found that the coconut water produced the amount of bacterial cellulose higher than the pineapple peel juice with 10 days of production. An addition of the coconut water into the pineapple peel juice increased the amount of bacterial cellulose. The characteristics of two bacterial celluloses from two different sources were nearly similar but the one from the pineapple peel juice had higher impurities. It can be concluded that the pineapple shell extract could be used as low cost carbon source for bacterial cellulose production.

The objective is to produce the biomass pellet fuel from coffee silverskin and spent of coffee grounds. To study the percentage of cassava powder as binder was mixed at 5 10 15 and 20% by weight and the best condition was chosen. Then to study the ratio of coffee silverskin and spent of coffee grounds was 5 ratios (100 : 0 75 : 25 50 : 50 25 : 75 and 0 : 100) on propertied of biomass pellet fuel. Characteristics and properties of raw materials and biomass pellet fuel were analyzed. The results found that the highest property of the biomass pellet fuel was 20% of cassava powder as binder. The biomass pellet from spent coffee grounds as main component was higher quality than coffee silverskin. The biomass pellet from spent coffee grounds was the maximum fuel property. The bulk density was 0.9699 􀁳 0.0045 g/ cubic cm shatter index was 92.6510 ± 0.2102% heating value was 17.2772 ± 0.0319 MJ/kg and heat utilization efficiency was 16.59 ± 0.02%. The results from the part of coffee silverskin and spent of coffee grounds ratio showed that the best ratio from 2 raw materials was 25 : 75 that gave the highest quality. The heating value was 17.1544 ± 0.017 MJ/kg and heat utilization efficiency was 16.48 ± 0.01%. In addition the study also discovered that the biomass pellet had moisture contents in the levels acceptable under biomass standards. Thus in summary the coffee silverskin and spent coffee grounds had physical property and fuel property according to the standardization to be made into biomass pellet fuel. It considered to be one of alternative fuels in country permanently.