จำนวน Repository ( 3447 )
การพัฒนากรรมวิธีการผลิตขนมจ่ามงกุฏแบบรวดเร็ว
Ja Mongkut is a kind of Thai dessert which the process is complicated. The most important processes is roasted watermelon seeds with sucrose solution to make the sugar gains like a thorn shaped that spent about 180-240 minutes caused Ja Mongkut is not popular to produce and consume. Effect of sucrose concentration on the thorn shaped of Ja Mongkut was studied. The sucrose concentration (45 60 and 75 %) was sprayed on the watermelon seeds during roasting. Watermelon seeds were sprayed with high sucrose concentration spent 25-30 minutes to product the thorn shape but it had large sugar gain. Sensory evaluation showed that the watermelon seeds sprayed with 45% sucrose concentration obtained the highest appearance and overall acceptance.
ปัจจัยที่ส่งผลต่อเจตคติต่อการทำงานในโรงงานอุตสาหกรรมเสื้อผ้าของนักศึกษา คณะเทคโนโลยีคหกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
This research aims to study the factors affecting the attitude of students in faculty of home economics technology towards work in factory of garment industry. Contain factor of personal characteristics of students the family background of students and the learning environment of students. Population is divisions of fashion merchandising technology and fashion clothing & textile design class 1-4 of Year 2555 total 210 people. Tool used was the questionnaire. Statistics used were percentage mean standard deviation correlation coefficient of Pearson and multiple regression analysis. The results showed factors affecting attitude towards work in factory of garment industry of students in faculty of home economics technology statistically significant at the .01 level has 3 factors. Sort by factors affecting most to the least 1) learning environment of students 2) Number of subjects for textile cutting and sewing learned ever 3) Personal characteristics of students and could explain the variability of attitude towards work in factory of garment industry at 77.1 percent of this population.
โครงการวิจัยและพัฒนาผลิตภัณฑ์อุปโภค-บริโภคจากวัสดุเหลือใช้ที่ได้จากการผลิตของโรงงานอุตสาหกรรมขนาดเล็กถึงขนาดกลาง
ผลการศึกษาพบว่า สูตรที่เหมาะสมของเครื่องดื่มนมผสมน้ําผลไม้แท้ 100% พาสเจอไรส์ ประกอบด้วย นมรีโพรเซส 10% น้ําสับปะรดและน้ําลิ้นจี่ชนิดละ 45 % เพคตินชนิด High-methoxy 0.55% และน้ําตาล 1% ผลิตภัณฑ์มีค่าสี2.5Y-5Y 9/2-4 ค่าpH 3.5±0.5 ค่าปริมาณของแข็งที่ละลายน้ําได้ทั้งหมด 13.5±1 องศาบริกซ์ พาสเจอร์ไรส์ที่อุณหภูมิ72 องศาเซลเซียส นาน 15 วินาที เก็บที่อุณหภูมิ 6±1 องศาเซลเซียสได้เป็นเวลา 8 วัน มีโปรตีน 2.8กรัม ไขมัน 2.1กรัมคาร์โบไฮเดรต 8.8 กรัม แคลเซียม 21 มิลลิกรัม และให้พลังงาน 65.3 กิโลแคลอรี่/100 มิลลิลิตร นอกจากนี้ยังพบว่า ผู้บริโภคให้การยอมรับผลิตภัณฑ์ด้วยคะแนนในระดับมากกว่า 7 (ชอบปานกลาง)
การศึกษากระบวนการย้อมสีใบตองแห้งด้วยสีธรรมชาติและสีวิทยาศาสตร์ เพื่องานศิลปะประดิษฐ์
The purposes of this research were1) to study the process of dried banana leaves’ dyeing with natural dye and scientific dye and 2) to study the results of dried banana leaves’ dyeing with natural dye and scientific dye. Dried banana leaves were bleached by using three formulas as follows: 1. Mix Haiter with water in the ratio 1:1 2. Mix Haiter with water in the ratio 2:1 and 3. Mix Haiter with water in the ratio 3:1. Soak 300 grams of the dried banana leaves for 5 days and record the results. The result of this experiment indicated that the third formula wassuitable to whiten and toughen dried banana leaves. After choosing the suitable formula for bleaching
การปรับปรุงคุณภาพและการยืออายุการเก็บรักษาผักและผลไม้แกะสลัก
The objective of this research was to find the suitable types of carving style for five fruits and vegetables e.g. pumpkin carrot radish cantaloupe and Japanese cucumber. Physiological changes and methods to improve quality and extend shelf-life were also studied. The results showed that the leave-carved operations stimulated the respiration rate ethylene production and the electrolyte leakage more than flower-carved operations. These responses depended on the size of wound and surface area that contacted with atmospheric oxygen. Two concentrations of peroxyacetic acid (60 and 80 mg/L) solutions showed the efficacy in reducing microorganism populations better than sodium hypochlorite (50 and 75 mg/L). The three firming agents of calcium chloride (0.5-1.5%) calcium lactate (0.5-2%) and calcium propionate (0.5-2%) could improve texture at different concentrations. The combination effects of peroxyacetic acid (80 mg/L) and firming agents (0.5% calcium chloride 1.5% calcium lactate and 2% calcium propionate) and/or 0.25 and 0.5% of chitosan coating were applied on rose and lotus-carved fruits and vegetables. All off flower-carved fruits and vegetables were stored at 5?1oC in clamshell container. Then they were placed in a control temperature chamber at 25?1oC every day for 3 hours until the end of shelf-life. The results showed that 0.25 and 0.5% chitosan coating had the best coating solutions for extended shelf-life of carved pumpkin carrot and cantaloupe. The control treatment dipped in tap distilled water showed the suitable treatment for rose-carved radish and lotus-carved Japanese cucumber. The best chemical treatment for each fruit and vegetable was repeated in the storage experiment and then they were stored at 5?1oC in clamshell containers to determine the shelf-life of three carved fruits and vegetables (rose carnation and lotus). The shelf-life of two styles of flower from carved pumpkin did not exceed 6 days. Carved carrot in rose and carnation flowers had shelf-life for 12 days while radish was not more than 9 days. The shelf-life of rose and carnation carved cantaloupe did not exceed 9 and 6 days respectively. Lotus-carved Japanese cucumber had shelf-life for 6 days. Carved radish and Japanese cucumber were dipped in tap distilled water which had high initial microbial population that caused the short shelf-life. Thus the application of 2% calcium propionate and 80 mg/L peroxyacetic acid was the suitable treatment for reducing microbial population and improving the appearance quality and extended shelf-life.