จำนวน Repository ( 87 )
การศึกษาแป้งถั่วขาวทดแทนแป้งสาลีในทาร์ตสับปะรดไต้หวัน
Study on white bean flour in place of wheat flour in Taiwan pineapple tart The objective is to study the basic recipe of Taiwanese pineapple tart. And study the amount of white bean flour in place of wheat flour in Taiwan pineapple tart. By studying the 3 basic recipes of Taiwanese pineapple tart flour. To get the recipe that the tastemakers accept the most And to study the amount of white bean flour instead of wheat flour in 5 levels of Taiwanese pineapple which are 0 percent (control formula) white bean flour instead of wheat flour in 25 percent Taiwanese pineapple tart 50 percent 75 percent and 100 percent. of all wheat flour. The randomized complete block design (RCBD) was used to plan the sensory qualities of appearance color smell taste texture and overall liking. With a 9-point Hedonic Scale tasting method using 40 tasting participants 2 repeated. Who is a teacher and students in the food and nutrition program Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon Take the result to find the mean 𝑥̅ Analysis of Variance (ANOVA) and compare the difference of the mean by the method (Least Significant Difference (LSD). The results of white bean flour instead of wheat flour in Taiwan pineapple tart. The tasters accept 25 percent of the taste texture and overall liking. With an average 7.50 7.40 and 7.43 respectively At a moderate level. Regarding appearance and color tasters accepted 0 percent with an average of 7.30 and 7.35 respectively. At a moderate level. As for the smell The tasters accepted 50% with an average of 7.45. Ata moderate level. When used to analyze the variance compare the differences. Found that the appearance color smell taste texture and overall liking. There is a statistically significant difference at the level of 0.05.
Properties of polypropylene conductive fiber from sheath-core bicomponent fiber
This is the study of a conductive sheath-core bicomponent fibers. The intentions of the experiments were to investigate feasibility of conductive sheath-core bicomponent fiber forming using selected materials and the fibers’ properties. The trails were to extrude the bicomponent fibers with conductive materials in sheath section and supporting materials in core section. The conductive carbon black was selected as conductive material to compound with polypropylene. The virgin polypropylene was chosen as core material in the fibers. It was problematic to form fibers using the conductive carbon black polypropylene compound alone therefore the virgin polypropylene was used as the core section in the fibers to promote production stability. The sheath-core carbon black compound bicomponent fibers were steadily produced with designated machine settings. The produced fibers were tested for their physical and mechanical properties and electrical conductivity. The results shows that the fibers with the carbon black polypropylene compound as the fibers’ sheath section and the virgin polypropylene as the fibers’ core section have conductive property. The conductivity of the fibers increased when their sheath sections were thicker as the ratio of the carbon black compound become higher. Even though thicker sheath section of the fibers (40% and over) have higher conductivity the physical properties of the fibers become weaken and less applicable as textile fibers.
การพัฒนาและประเมินผลเครื่องอบแห้งแบบปั๊มความร้อนขนาดเล็กสำหรับกล้วยน้ำว้าสไลด์
The purposes of this research were to develop and to test performance of mini heat pump dryer for slice banana. Drying chamber of 0.48×0.47×0.39 m3 was designed and it could contain three trays. The three trays had dimension of 0.33×0.409 m2. A blower with 174.6 W motor of air condition was modify and could adjust flow rates of three levels for air cycle system in dryer. The air system had bypass air at evaporator. The refrigerant of R-134a and four main parts were used in the heat pump system. The four main parts were a 497 W hermetic compressor a 1800 W condenser an expansion valve and a 1300 W evaporator. Experiments for test performance of the mini heat pump dryer used close loop air system an evaporator bypass air of 60 % a temperature of 60 oC and various flow rates of 0.117 0.128 and 0.140 m3/s. Slide bananas of 400-500 g had an initial moisture content of 244-281 %dry basis and were dried until final moisture content lower than 6.24±0.007 %dry basis. It was found that the flow rates of 0.117 0.128 and 0.140 m3/s had coefficients of performance (COPh) of 3.32±0.066 3.88±0.031 and 4.24±0.08 respectively and had specific moisture extraction rates (SMER) of 184.5±11.85 186.2±8.17 and 200.1±21.34 g/kWh respectively. The flow rate at 0.140 m3/s was the best condition because it had high specific moisture extraction rate.
ผลของปริมาณแป้งกล้วยหอมเขียวทดแทนแป้งสาลีที่มีต่อคุณลักษณะของขนมปัง
The objective of this research was to study the effect of substitution of wheat flour with Cavendish banana flour on specific volume density antioxidant activity and the sensory acceptance of bread using Cavendish banana flour instead of wheat flour as 0% (control) 10% 20% and 30% of the total flour weight. It was found that an increasing amount of Cavendish banana flour caused the darker of the bread appearance and the specific volume of the bread decreased from 4.22 to 2.69 cm3/g while the bread density increased from 0.24 to 0.37 g/cm3. The total phenolic content and antioxidant activity of the bread made of Cavendish banana flour instead of wheat flour were significantly greater than the control bread (p<0.05). Also the sensory acceptance scores by panelists in terms of appearance color aroma taste texture and overall acceptance of bread using 10-30% of Cavendish banana flour content were not significantly different compared to the control bread (p>0.05) . Therefore the bread using 30% Cavendish banana flour gave the highest amount of total phenolic compounds and antioxidant activity with well accepted by consumers.
การผลิตไก่อบโอ่งโดยใช้ความร้อนจากรังสีอินฟราเรดไกล
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