The replacement of partial sugar with jaggery palm in Khanom Ar-Lua production was further carried out for studying the suitable ratio of jaggery and sugar are 25:50 50:50 and 75:25 and studying the suitable drying time which varied period of time at 8 9 10 and 11 hours. Analyze nutritional values of Khanom Ar-Lua that sugar partially replaced with jaggery palm and Randomized Complete Block Design (RCBD) was applied. Sensory evaluation (color flavor taste texture and overall liking) was tasted by sixty panels with 9-point hedonic scale. After that using 5-point hedonic scale for consumer acceptance test by one-hundred panels. The results showed that Khanom Ar-Lua which use of jaggery palm replacement partial sugar at ratio of 25:75 had the highest score in every properties of sensory test. The suitable drying time is 10 hours. Khanom Ar-Lua that used jaggery palm to replace partial sugar had higher protein carbohydrate and total energy than basic recipe but moisture content and energy from fat are the lower. The consumer acceptance test showed that 99% acceped Khanom Ar-Lua which using jaggery palm replaced patial sugar.

The objectives of this research are to study three standard recipes of coconut milk ice cream and to study the optimal level of jaggery palm in production coconut milk ice cream which sugar partially substituted with jaggery palm at difference levels are 50% 70% and 100% and then the experiment was analyzed with Randomized Complete Block Design (RCBD) at the confidence level was at 95%. Sensory evaluation (appearance color flavor taste texture (smoothness) and overall liking) was tasted by sixty panels with 9-point hedonic scale and the differences of the mean scores were compared with using Duncan’s New Multiple Rang Test (DMRT) in SPSS program for selection the standard recipe and optimal level of jaggery palm. Finally consumer acceptance test on the coconut milk ice cream which sugar partially substituted with jaggery palm was tasted by one-hundred consumers with 5-point hedonic scale. The result showed that the third standard recipe and the 100% of jaggery palm are the most acceptable from panels in sensory evaluation. Afterwards physical properties were analyzed found that viscosity increased up to 705.86 cps 21.56 of overrun value together with 11.26 melting rate. Average score of appearance color flavor taste texture (smoothness) and overall liking are 4.45 4.41 4.33 4.37 4.46 and 4.51 respectively and 98% of consumer accepted using jaggery palm substituted for partial sugar in coconut milk ice cream.

This research work was to study the improvement of toughness and impact resistance of polylactic acid (PLA) with modified soybean oil (MSBO) and palm fiber (PF). The detail of this work was divided into three parts. The first was to find the suitable condition for modification of soybean oil with ozonolysis. The second and last parts were to study the effects of MSBO and PF contents on the properties of PLA respectively. For oil modification the reaction times were varied from 0 to 3 hours and the chemical changes in molecules of soybean oil were investigated by Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies. The result suggested that the most suitable condition for ozonolysis reaction was 2 hours considering the decrease in double bond between carbon atoms and the increase in hydroxyl group into molecular structure of MSBO. For the effect of MSBO content on mechanical properties it was evaluated by tensile and impact testing. Differential scanning calorimeter (DSC) and scanning electron microscope (SEM) were used for thermal and morphology analyses. The result showed that elongation at break and impact strength of modified PLA by MSBO increased about 89 and 25 % compared to those of neat PLA respectively. MSBO act as the efficient plasticizer for PLA considering the conversion of fracture behavior from brittle to ductile good dispersions of MSBO droplets in PLA and the decrease of glass transition temperature (Tg) with addition of MSBO. The addition of PF improved the impact strength of modified PLA. Strong interfacial bonding between PLA and PF indicated MSBO being both coupling agent for PLA and natural fiber and plasticizer for PLA. For migration test it was found that contents of released heavy metal and migrated chemical from specimens of PLA and PLA/PF composite were under the criteria according to Notification of the Ministry of Public Health (No. 295) B.E. 2548.

The purposes of this research are to study: 1) understanding of water and electricity saving 2) water and electricity consumption behavior 3) to compare water and electricity consumption behavior classified by personal characteristics of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. This research was descriptive research. The sample group was specified to be 325 people by stratified sampling. The reliability of this questionnaire is 0.87. Statistics used was descriptive and inferential statistics. The research result revealed that: 1) The overall of understanding and knowledge regarding electricity saving of the students is in the moderate level. 2) The overall of water and electricity consumption behavior of the students is in the moderate level. 3) The comparison of behavior of water and electricity consumption specified according to personal characteristics could be summarized that the students in different genders classes and majors had identical water consumption behavior and the students in different genders and classes had identical electricity consumption behavior. On the other hand the students having different majors had statistically different electricity consumption behavior at 0.05.

The purposes of this research are to study water and electricity consumption behavior of the students to study understanding of water and electricity saving and to compare the difference of water and electricity consumption behavior classified as personal characteristic of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. This research was descriptive research. The sample group used in the research was the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. Size of the sample group was specified to be 325 people by stratified sampling. The tool used in data analysis was questionnaire divided into 3 parts including part 1: questions regarding general details of a respondent part 2: questions regarding knowledge of water and electricity saving consumption the students of Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon and part 3: questions regarding water and electricity consumption behavior of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. The statistics used in data analysis consisted of frequency percentage mean standard deviation and hypothesis testing using t-test and ANOVA (Analysis of Variance) for testing parallel difference by LSD method. The research result found that: 1. The level of water and electricity consumption behavior of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon was overall in the moderate level. 2. The level of understanding and knowledge regarding water and electricity saving of the students Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon was overall in the moderate level. 3. The comparison of different behavior of water and electricity consumption specified according to personal characteristics could be summarized that the students having different gender class and major had identical water consumption behavior and the students having different gender class and major had identical electricity consumption behavior. On the other hand the students having different major had statistical significance in electricity consumption behavior at 0.05