Broken rice of Thai cross breed black rice Riceberry was an under-utilized agricultural by-product that contains high content of anthocyanins the multiple health benefits flavonoid. In this study these anthocyanins were used to develop healthy dark hocolates. The anthocyanin extract from the broken Riceberry rice was prepared into anthocyanin powder using freeze-drying technique in which maltodextrin was used as a carrier material. Healthy dark chocolates were prepared by replacing cocoa powder with anthocyanin powder by 5 10 and 15 g/g cocoa powder which respectively delivers DC5 DC10 and DC15 anthocyanin-fortified dark chocolate bars. The color analysis showed no blooming (undesired white color at the chocolate surface) in all chocolates. The increase the anthocyanin powder content significantly decreased the hardness of the dark chocolates (33.9-27.2 N). Total anthocyanin content (TAC) in the dark chocolates increased respectively as anthocyanin powder content increased. The health benefit of the anthocyanin-fortified dark chocolates was improved as the DPPH antioxidant activity of all treatments was 4-9% higher than that of the control DC0. Sensory evaluation revealed that DC10 received higher liking scores (6.4-7.5) than the DC0 indicating more consumer preference. The anthocyanin-fortified dark chocolate delivers an alternative strategy to improve the health property of chocolates. This application of anthocyanin from the broken Riceberry rice could help increase the value and the utilization of Thai agricultural by-product.

The objectives of this research were to construct a jar oven for the production of roasted chicken using heat from far-infrared radiation and to find the amount of electricity and specific energy consumption used in the production of roasted chicken. The physical properties in terms of color softness cooking yield and water holding capacity of roasted chicken were also investigated. By using far-infrared radiation at electrical power levels of 1000 1200 and 1400 watts to roast marinated chicken which had an initial mass of about 1650 grams until the mass of the roasted chicken had a lower than 1220 grams. From the experimental results it was found that the production of roasted chicken at far- infrared radiation with a high electrical power level requires significantly less electricity and specific energy consumption than that with low electrical power level (P≤0.05). Roasted chicken breasts with far-infrared radiation at 1400 watts had significantly higher lightness (L value) but lower redness (a value) and yellowness (b value) than those of 1000 watts (P≤0.05). However lightness (L value) yellowness (b value) and redness (a value) of the roasted chicken breast with far-infrared radiation at 1200 watts were not significantly different from those at 1000 and 1400 watts (P>0.05). The shear force and water holding capacity of roasted chicken were significantly increased when the electrical power levels of far-infrared radiation increased (P≤0.05). Moreover the electrical power levels of far-infrared radiation (1000 1200 and 1400 watts) did not significantly affect the cooking yield of roasted chicken (P>0.05).Sponso

The objective of this research is to study the combustion characteristic of a low-pressure vertical port burner using computational fluid dynamics (CFD). The simulation model was created using Fluent 6.3 in 3D-model of the same size of the burner. The CFD results were verified by measuring the temperature around the burner head and a vessel. Moreover the results of conventional vertical port burner having the swirl angle of 90o and the inclination angle of 90o (CB-S90I90) and two swirl port burners (SB) being SB-S90I13 and SB-S30I90 were compared. The temperatures obtained from CFD and experiments were similar which the error was less than 9%. From the CFD’s results the temperature and heat flux of the SB-S90I13 burner were higher than those of the CB-S90I90 burner. The maximum temperature and heat flux of SB-S90I13 burner were 1445 K and 5291 W/m2 respectively. It was implied that the combustion characteristic and heat transfer to the vessel of SB-S90I13 burner was better than that of CB-S90I90 burner. It was resulted that the thermal efficiency of SB-S90I13 burner was better than that of CB-S90I90 burner which was the percentage energy saving of 6.93%.

The purpose of this study is to study the 1) Demographic factors affecting the knowledge about the sufficiency economy philosophy of those employed persons in Bangkok. 2) Demographic factors affecting the use of sufficiency economy philosophy in the life of the person employed in Bangkok. 3) The relationship between knowledge about sufficiency economy philosophy and the use of sufficiency economy philosophy in the life of the employed persons in Bangkok. The samples in this research were 540 the employed persons in Bangkok selected by multistage random sampling. The research instrument was test with 10 items and questionnaires of rating scales with 30 items. The statistics used to analyze the data including the number and percentage mean standard deviation t - test for independent sample One-Way ANOVA Scheffe’s test analysis and simple correlation coefficients were statistical method to analyze data. The research found that: 1) Most of the respondents were female aged less than 35 years single status education level Bachelors degree career employees to a private company. The average monthly income of less than 35000 baht Hometown Central region. Have knowledge of the sufficiency economy philosophy at a moderate level. The sufficiency economy philosophy is applied to life at a high level. 2) Demographic factors affecting knowledge of the sufficiency economy philosophy include gender age education level occupation and average monthly income. Comparison results vary statistically significantly at a significant level of 0.05. 3) Demographic factors affecting the use of sufficiency economy philosophy in the life of those employed in Bangkok include gender age marital status education level occupation and average monthly income. Comparison results vary statistically significantly at a significant level of 0.05 4) The relationship between knowledge about sufficiency economy philosophy and the use of sufficiency economy philosophy in the life of the employed persons in Bangkok. There was a relationship that was not statistically significant. At a significance level 0.05

With the objective 1) to develop communication system operating simulation program using GUI MATLAB 2) To find the efficiency of communication system simulation program using GUI MATLAB and 3) To compare the calculation results from the developed program with the calculation results The parameters of the high frequency transmission line which were developed to be programmed Classified by type of transmission lines in the air depending on the frequency and use including two-wire transmission cables. Twin-plane transmission cables And coax signal transmission lines The program components are divided into 3 screens namely the main screen the main program screen And parameter calculation screen Systematic quality and efficiency checks by 5 experts That has specialized expertise The tools used in the research were the quality inspection evaluation form which is divided into 2 parts which are part 1 program testing and part 2 testing the statistical system used for data analysis including mean percentage and standard deviation. The research found that 1. The result of the development of communication system simulation program using GUI MATLAB with the structure of the program design Dividing operations into 3 main parts Namely the calculation of two signal transmission lines. The calculation of the twin plane transmission line program And the calculation of the coax transmission line program n each part of the program calculation there is a working principle of the program. Each part of the calculation of the program has a working principle of the program. Divided into the terms of the scope of the transmission line Calculate capacity Calculate the conductivity Calculate inductance Calculate resistance And calculate the impedance value In which all calculations can show calculation results Select the calculation of various transmission lines. The program that the research team developed The signal transmission line is divided according to the type of usage and frequency. There are 3 signal transmission lines which are two-wire transmission lines. Twin-plane transmission cables And coax signal transmission lines 2. The result of finding the efficiency of the communication system simulation program using GUI MATLAB is divided into 2 parts. Part 1 Result of the language order and ability test for all 5 sub-processes Is correct No errors in the process In which each working process is linked as designed Overall the system development can work without errors. And when evaluating system acceptance It was found that the developed program could be used as a research tool. When considering each aspect found that Design. Design standards Design quality And the structure that is not complicated design is accepted by experts As a percentage between 82% - 85% Working process sorting work process Understanding of working language is accepted by experts. As a percentage between 82% - 87% And in front of work how to work in each work Compliance with user needs is accepted by experts. As a percentage between 80% - 95% And part 2 finding the performance of the communication system simulation program using GUI MATLAB developed found that the developed program has a high level of performance (x ̅ = 4.16 S.D. = 0.35) 3. Comparison between the calculated results from the developed program and the calculated results With matching calculation results Therefore shows that The developed program can be used in place of efficient calculation by hand.