This research investigated the effect of antibacterial activity of Guava leaves extract. Antibacterial activity was determined by agar well diffusion method and test with Staphylococcus aureus Bacillus cereus and Escherichia coli. The results showed that Guava leaves crude extract best inhibited the growth of Bacillus cereus followed by Staphylococcus aureus and Escherichia coli with a mean inhibition zone was 22.0 ±0.3 19.00 ± 0.2 and 14.5 ± 0.3 mm respectively. When comparison antibacterial activity between Guava leaves extract with ampicillin 0.010 mg.

At the present the studies on the Mahachanok jam product is limited. The objective of this research was to study in the textural syneresis and sensory characteristics of Mahachanok jam from three types of geldings (pectin galactomannan and carrageenan) and different storage conditions (room temperature 4o C) for 1 month. It was found that the gel strength rupture strength and brittleness of the Mahachanok jam from carrageenan and galactomannan were higher than pectin (p≤0.05). When the jam was stored at 4oC jam from pectin had highest brittleness and jam from galactomannan had syneresis more than carrageenan and pectin (p≤0.05) respectively. The jam was stored at 4o C found that the syneresis was lower than stored at room temperature. For sensory evaluation the overall acceptance of Mahachanok jam from pectin and carrageenan were higher than galactomannan with the mean of like score between slight to moderate.

Bread is a bakery product with low moisture content. It have a hard and sticky texture that cause difficult to eat. Therefore in the present study the effect of gelatinized starch (wheat corn rice tapioca and glutinous starch) to improve of bread quality was determined. Starch were gelatinized and added as bread ingredients. Gelatinized starch influenced the quality of bread. The bread obtained gelatinized starch with high specific volume and moisture content but low density (p≤0.05). Sensory evaluation showed that the bread which contained from gelatinized tapioca starch obtained highest score especially texture and overall acceptance from the panelists. Tapioca gel has been used as texture improving agent in bead. The effect of tapioca gel on the quality of bread were determined. The tapioca gel (0 20 30 40 and 50% of wheat starch) was used in the formulation of the bread. Increasing tapioca gel improved specific volume moisture content density and sensory quality (p≤0.05); however these quality were deteriorated as add tapioca gel up to 50% (p≤0.05).

Nowadays container of alcohol for warm food is produced from raw material of alloy mixture of tin chromium and manganese. When the container is heated with the flame temperature at 300 c which it is burned about 10 minutes. The container is transformed into trash that it’s difficult to disintegrate for destroying the environment. This reason is that the sawdust is taken for useful and alloy substitute. Manufacturing container from the sawdust on alloy with alcohol gel substitute for warm food the process of forming is essential that mold extrusion and compression mold are designed appropriate to size shape of workpiecesafedurablesuitable work including preparing forming sawdusttest for burningpreparing synchronizationdesign work and selecting material for mold. The result of project revealed that the burning was taken about 26 minutes per piece while metal container had 15 minutes. Furthermore sawdust container was about 73.33 percent and the temperature of combustion higher than metal container about 51.88 percent. Sawdust container costs 2.45 baht per cup and lower than 51.00 percent whereas metal container costs 5 baht per cup. The rate of precipitation into process of biodegradation container from sawdust and water showed that the rate of good biodegradation was depended on precipitation into process of biodegradation.

“Usage of Luo Han Guo instead Coconut Sugar in Kgawyaco milk Gelatin Product” Objective To determine the usage Kgawyaco milk as coconut milk substitutes of Kgawyaco milk jelly Amounts of three different levels: 40 60 and 80 percent of all coconut milk . And to determine the appropriate amount of Luo Han Guo used to replace sugar and Kgawyaco milk jelatin . Amounts of three different levels: 15 20 and 25 percent by weight of coconut sugar. The experiment follows the Randomized complete Block design (RCBD) principle. The quality of senses; color smell criteria taste texture and overall appreciation were evaluated and given up to 9- point hedonic scale by 80 experimenters. The average was computed and the variance was analyzed by ANOVA at the 0.05 confidence intervals and the difference of averages were examined by Least Significant Difference test through the prefabricated program. The results sensory evaluation of using coconut milk instead of jelly custard Kgawyaco panelists recognized at the level of 60% in the appearance color odor taste texture and overall liking averaged 7.72 and 8.51 8.05 8.02 8.03 8.10 respectively. Analysis of variance and compared differences are statistically at 0.05. Evaluated sensory of use Luo Han Guo substitutes coconut sugar of jelly milk Kgawyaco panelists recognized at 15 in appearance color taste and texture with an average 7.81 7.72 7.71 and 7.46. respectively analysis of variance and compared difference of smell texture and overall are statistically at 0.05.