จำนวน Repository ( 18 )

การเปลี่ยนแปลงคุณภาพไข่เค็มพอกขมิ้นทดแทนดินจอมปลวกบางส่วนระหว่างการเก็บรักษา
การเปลี่ยนแปลงคุณภาพไข่เค็มพอกขมิ้นทดแทนดินจอมปลวกบางส่วนระหว่างการเก็บรักษา

This research aimed to study the quality changes of coating salted eggs partially replacing soil from termite mound with turmeric powder at the level of 0% 5% 15% and 25% during storage for 4 weeks. The results showed that the increasing in turmeric level caused a decrease in salt content in raw egg yolk and raw egg white which led to decrease in hardening ratio of egg yolk. The hardness values of cooked - salted egg yolk decreased while those of cooked - salted egg white slightly increased. At the same salting period the color values of raw egg yolk and raw egg white coated with different levels of turmeric were slightly different. Egg yolks changed to a yellowish orange color while egg whites showed lightness with a direction of red and slightly yellowish color. The raw egg white coated with higher level of turmeric powder exhibited more yellowness which was in accordance with the increasing in curcumin content. From the results of 9-point hedonic scale in terms of color aroma overall taste and overall liking it was found that salted eggs coated with turmeric powder to partially replace soil at a level of 25% with 2 weeks of preserved duration had high scores of sensory acceptability which did not differ significantly from the control samples (0% turmeric) (p>0.05). The curcumin content analyzed in dry egg white was 3.885 mg/g at week 2 and increased to 13.291 and 18.484 mg/g at week 3 and 4 respectively.

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อิทธิพลของสภาวะการผลิตและการเก็บรักษาต่อสมบัติทางเคมีกายภาพของพริกป่นและพริกป่นคั่ว
อิทธิพลของสภาวะการผลิตและการเก็บรักษาต่อสมบัติทางเคมีกายภาพของพริกป่นและพริกป่นคั่ว

Development of chili powder products through consumer survey to be used as the information for the development of high quality chili powder. The quality and physicochemical properties of chili powder during storage were investigated. The sound and red pods of fresh chili were washed and blanched at 100ºC for 3 min. Blanched chili pods were soaked in 0.25% sodium metabisulfite with 1.0% citric acid for 30 min prior to drying in a tray dryer at 65°C for 14 h to obtain dried chili with a final moisture content of approximately 8%. Dried chili pods without stem were ground to obtain chili powder. Roasting before grinding resulted in the reduction of moisture aw and color values. The results of study on the quality changes of chili powder during storage showed that storage temperature was the important factor affecting the changes in physicochemical properties and percentage of consumer acceptance. Meanwhile aluminum foil packaging slowed the increase of aflatoxin content in chili powder better than polypropylene. However aerobic bacterial count of the developed chili powder product is very low compared to the microbiological specifications while yeast and mold were not detected. The product contains a standard level of aflatoxin content after 12 weeks in all storage conditions which corresponds to the awareness of consumers in terms of quality cleanliness and safety are important factors in deciding to buy chili products.

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การยืดอายุการเก็บรักษากล้วยหอมด้วยฟิล์มไคโตซาน
การยืดอายุการเก็บรักษากล้วยหอมด้วยฟิล์มไคโตซาน

This research was study the optimum condition for chitosan film forming from preparing the chitosan solution 2% (w/w) that added with acetic acid 1% (w/w). The solution viscosity was adjusted by glycerol at 15 30 and 45 % (w/w) and Tween 10% (w/w). From the experimental results in case of the chitosan solution that adding with glycerol 45 % (w/w) Tween 10% (w/w) and drying which final moisture content at 23 % (d.b.) affected the highest viscosity of the chitosan film that compared with other condition. The ultimate tensile strength of chitosan film was 4.14 MPa. For banana storage testing the banana was wrapped with chitosan film for 10 days at room temperature the first five days the color of banana peel was yellow normally after that the peel was slightly increased with dark color. The total soluble solid of the banana was in the range of 19-28 Brix.

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การปรับปรุงคุณสมบัติเฟร์โรอิเล็กทริกของ0.93(Bi0.5-x/0.93Smx/0.93Na0.5) TiO3-0.07BaTiO3 สำหรับเป็นแหล่งกักเก็บพลังงาน
การปรับปรุงคุณสมบัติเฟร์โรอิเล็กทริกของ0.93(Bi0.5-x/0.93Smx/0.93Na0.5) TiO3-0.07BaTiO3 สำหรับเป็นแหล่งกักเก็บพลังงาน

In this study we investigated the effects of Sm2O3 addition in ceramics 0.93(Bi0.5- x/0 . 9 3Smx/0 . 9 3Na0 . 5 ) TiO3 - 0 . 0 7 BaTiO3 by mixing solid oxide solutions. The crystalline properties of the X-ray diffraction and ferroelectric properties were studied from the P - E loop. The physical properties showed that BSNT-BT ceramic density increased and the percentage of shrinkage decreased due to the increase of the amount of Sm2O3. Moreover it was found that the results were consistent with the structural study for sintered samples at a temperature of 950 °C for 7 hours. It can be determined that the BSNT-BT ceramics have a perovskite structure which is like the main structure of ceramic type BNT. Dielectric properties and dielectric losses at room temperature showed that when increasing the amount of Sm2O3 in BSNT-BT ceramics the dielectric and low dielectric loss were consistent with reduced material resistance. Further the ferroelectric test found that BSNT-BT ceramics improved the ferroelectric properties when increasing the amount of Sm2O3 in the BSNT-BT ceramics.

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การผลิตและการเก็บรักษากุนเชียงปลาลดไขมันพร้อมบริโภค
การผลิตและการเก็บรักษากุนเชียงปลาลดไขมันพร้อมบริโภค

This study aims to study the recipes and development of Shogun fish sausage products by studying the use of fat substitutes in Shogun fish sausage products. Study the nutritional value of Shogun fish sausage products and study the shelf life of fat-reducing Shogun fish sausage products. The results of the evaluation of the liking of the fish sausage in 3 formulas with a 9 points Hedonic scale method by 50panelist. The first accept to recipe of Wilasinee (2011) that it had sugar and soy sauce more than any other recipe. As a result the taste panelist gave more points than recipes 2 and 3 so they chose recipe 1 as the basis for the study of fat substitution with invading powder mixed with xanthan gum in the fish sausage. Amount 3 levels: 50 percent 75% and 100% of total fat content. It was found that the panelist accepted a recipe that replaced 100% of fat in terms of color smell and taste. In the part it was found that the panelist accepted the recipe at 75% more than because the fish sausage also had a soft texture from some fats but when thinking of benefits that will be gained from fat substitution with invading powder mixed with xanthan gum in the fish sausage. As a result it selected the level of recipe that uses all the fat substitutes to develop as a fat-reducing fish sausage when bring developed sausages to study nutritional value and compared to the basic recipe it was found that protein content and humidity. It’s not different but the amount of fat is less than basic recipe and fiber content is greater than the basic recipe. That result of the use of invading powder mixed with xanthan gum to replace the fat that is the ingredient in the fish sausage product. Then a study was conducted to assess the shelf life. After frying the sausage with a vacuum frying machine and packed with vacuum aluminum foil bag for 4 weeks and then analyzed for chemical and microbial analysis. It found that the quality is in according the community product standard fish sausage (Standard No. 104/2555).

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