การศึกษาสูตรและพัฒนากรรมวิธีการผลิตปลานิลหยอง

This research aimed to study the basic recipes of making “Pla Nil Yong” were studied. The Completely Randomized Design (CRD) was used to evaluate the sensory property in overall liking the characteristic appearances color flavour taste and texture. There were used 30-testers and a 9-Point Hedonic Scale were used. The study found that the second basic recipe had the highest scores in overall satisfaction. The 3 types of heating of fish meat production used were: Steaming Pressure Cooking and Broiling. It was found that the Pressure Cooking had the highest scores of all averages. The Steaming and the Pressure Cooking made the fish fiber fluffier than the Broiling. By the color variation of finishing product was as follow: Brightness (L*) 53.91 Red (a*) 10.50 Yellow (b*) 30.25 aw 0.57. By the amount of total microorganism 2.5x102 CFU/g Yeast and Fungus <25 CFU/g Moisture 4.75% Fat 6.54% Protein 48.06% Ash 7.47% Fiber 0.54% Carbohydrate 32.64%. The study of 3-differrent-temperature of storage were 28 40 and 50 degree Celsius. In 90-day storage checking; found that all of the three variation had overall liking the characteristic appearances and color were different but flavour taste and texture were of no difference. The total amount of microorganisms: yeast and fungus were a lower standard. The production cost of Pla Nil Yong is 397.10 bahts per kilogram.