The objectives of this research were to study the effect of hot air velocity on the changes of the moisture content and temperature of preserved tomatoes undergoing combined conveyor system and hot air drying. Specific energy consumption physical properties in term of color and shrinkage and sensory evaluation of dried preserved tomatoes were also investigated. The preserved cherry tomatoes were dried at a drying temperature of 80oc and hot air velocity of 2 and 4 m/s until the moisture contents of the preserved tomatoes were lower than 18% wet basis. The experimental results showed that the hot air velocity had effect on the changes of the moisture content and temperature of preserved tomatoes. Specific energy consumption total color difference shrinkage percentage and sensory evaluation results of dried preserved tomatoes of the hot air velocity of 2 and 4 m/s were not significantly different (P>0.05).Moreover the dried preserved tomatoes obtained from this research had significantly lower sensory scores in term of color and appearance than those obtained from the local market (P≤0.05). However sensory scores in term of flavor texture and overall preference of the dried preserved tomatoes obtained from this research and the local market were not significantly different (P>0.05).

Development of prototype products from waste rice for teenage consumer. The purpose of this study was developing formula and prototype of waste rice for food production. The waste rice could be used as rice in 100% for 3 products such as Khao Tang Rice Crackers and Sticky Rice Coconut Cream. The suitable condition for Khao Tang was using waste rice as 110 g. and seasoning 10%. The result of physical and chemical analysis showed that: products have orange bright color hardness cripyness and not rancidity. The percentage of moisture fat protein crude fiber ash and carbohydrate content 4.02 ± 0.06 20.12 ± 0.05 9.36 ± 0.04 2.58 ± 0.12 4.30 ± 0.11 and 59.62 ± 0.09 respective. The suitable condition for Rice Crackers was using waste rice as 130 g. storage in room temperature at 24 hr. After that place to microwave at 20 sec. %. The result of physical and chemical analysis showed that: products have orange bright color Tom Yum seasoning for delicious hardness cripyness and not rancidity. The percentage of moisture fat protein crude fiber ash and carbohydrate content 6.69 ± 0.03 1.65 ± 0.06 5.23 ± 0.07 0.93 ± 0.13 1.37 ± 0.08 and 84.12 ± 0.05 respective. The suitable condition for Sticky Rice Coconut Cream was using coconut milk (UHT) as 175 g. storage in freeze at 24 hr. After that place to microwave at 30 sec. %. The result of physical and chemical analysis showed that: products have white-yellow bright color softness and coconut sweet taste. The percentage of moisture fat protein crude fiber ash and carbohydrate content 43.55 ± 0.03 6.29 ± 0.02 3.21 ± 0.03 1.20 ± 0.06 0.50 ± 0.09 and 45.24 ± 0.05 respective. The shelf life of 3 products are more than 2 months and consumer acceptability like moderately product.

Using of ethylenediaminetetraacetic acid (EDTA) and synthetic surfactant increase the chemical contamination in water. The co-phytotoxicity of EDTA (0-20 mg/l) and 3 synthetic surfactants; Triton X-100 (0-10xCMC) Tween 80 (0-10xCMC) and sodium dodecyl sulfate (SDS) (0-2 x CMC) on the growth of 2 duckweeds spirodela polyrrhiza and Lemma perpusilla were studied for 3 days. The results showed that the surfactant were phytotoxic on the growth of both plants while EDTA was not. SDS was the most toxic to plant especially on all chlorophyll content. Triton X-100 was only toxic to the growth of L. perpusilla and weight of S. polyrrhiza. Tween 80 was less or the least toxic to both plants. This surfactant only decreased chlorophyll a and total chlorophyll content of S.polyrrhiza and L. perpusilla. There was not any interaction between EDTA and surfactant on most toxicity tests. With these results synthetic surfactant contamination should be more concerned than co-contamination with EDTA.

The purpose of this study was to optimize the formula of cereal drink. Ninetyoneto ninety-three percent of red kidney bean three to five percent of peanut andone to three percent of Job’s tear were studied by using Mixture experimental design(Scheffe’ simplex-centroid design) to determined the optimumformula. Chemical and physical properties %protein pH and total soluble solid were analyzed. The result shown the formula of cereal drink consisted of 0.5% red kidney bean 1% peanut and 1%Job’s tear were the optimum formula. The optimum product was evaluated color(L* a* b*) pH %protein %fat and %fiber. The product consisted of L*38.20 a*0.13 b*3.46 pH 6.6 1.3% of protein 0.2% of fat and 0.02% of fiber. Coliform bacterials was less than 3.0 MPN/100ml. Sensory evaluation was tested by 100 panelists using 9-point hedonic scale in aspects of color odor flavor texture and overall liking were 6.18 6.16 6.09 6.04 and 6.63 respectively. The overall liking of product was within the range of like slightly

Chanee Monthong and Kan Yao Durian rind be used in this research. Chanee Durian rind powder is similar as wheat flour in color and high yield. Butter cake sponge cake and chiffon cake be used in this research. Increasing of durian rind powder substitute for wheat flour to effect increasing of crude fiber in all cake sample meanwhile decreasing in color and volume of all cake sample which acceptance affects. Consumer acceptance test in Potential Development of cake products with Flour from durian peel project for 100 tester found that most testers are more than 80 percent acceptance in the product of Potential Development of cake products with Flour from durian peel project. For the Technology propagation of the Potential Development of cake products with Flour from durian peel project at the Faculty of Home Economics Technology. All participant are most satisfied in all aspects of Technology propagation. Based on the research results the maximum replacement potential is 10%. Increasing this amount of substitution will have an effect on the appearance. And color features. Especially the texture feature. Therefore the study should be further studied on the methods of production. The durian peel is more detailed. This may result in the development of high-fiber pastry products. To help improve the sensory properties. These features affect product adoption