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.

This article presents texture analysis of crispy snack products by using Acoustic Emission (AE) to measure sound that occurred when the products were chewed or broken. This technique has currently gained great interest from food scientists. A sound emitted from food was found to be related with microstructure and crispness. Measurement of sound emitted from food when it was chewed consists of three main steps: 1) Apply force on piece of food with a texture analyzer; 2) Detect sound signal with an acoustic envelop detector; and 3) Interpret the collected data of mechanical force and acoustic emission.

The objectives of this special project were to investigate three basic formulas of Using black cincau water in Kanom Kee Noo and to study the content of black cincau water as partial substitute for water in Kanom Kee Noo with different four proportions of black cincau water at 0% 20% 40% and 80%. Randomized Complete Block Design (RCBD) was used as the research design. Sensory evaluation was conducted to assess appearance (rise crumbling) color flavor taste texture (softness) and overallikng preference with 9-Point Hedonic Scale. 80 tasters were instructors and students in Foods and Nutrition Faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. Data collected were analyzed to determine mean (x̅) and Analysis of Variance (ANOVA). The statistical comparison was conducted by using Least Significant Difference (LSD) and Duncans New Multiple Range Test (DMRT). Data were analyzed through statistical software packages. The results of studying three basic formulas of Kanom Kee Noo indicated that tasters preferred the first formula over the second and the third formulas in terms of appearance (rise and crumbling) color taste and overall preference at a moderate level of preference with mean scores of 7.85 8.17 7.85 7.75 and 7.87 respectively. For the second formula over the first and the third formulas in terms of flavor at a moderate level of preference with mean scores of 7.45 respectively. The tasters had a moderate level of preference. When ANOVA and statistical comparison were considered there were the differences in appearance (rise crumbling) color flavor taste texture (softness) and overallikng preference with a statistical significance level of 0.05 The results of studying the content of black cincau water as partial substitute for water in Kanom Kee Noo with different four proportions of black cincau water showed that tasters preferred the 40% black cincau water formula over 0% 20% and 80% formulas in terms of color flavor taste texture (softness) and overallikng preference with mean scores of 7.60 7.51 7.69 7.58 and 7.63 respectively. The tasters had a moderate level of preference. The tasters preferred 20% black cincau water formula in terms of appearance (rise crumbling) over 0% 40% and 80% formulas with mean score of 7.67. The tasters had a moderate level of preference. When ANOVA and statistical comparison were considered there were statistically insignificant differences in appearance (rise crumbling) flavor taste texture (softness) and overallikng preference with a level of 0.05. There were the differences in color with a statistical significance level of 0.05.

The objective of this research was to study the dominant feature of Khao Wong glutinous rice Kalasin province for geographical indications. The effect of three cultivated areas of glutinous rice variety (RD6) consisting of Khao Wong Huai Mek and Kong Chai districts was investigated along with their physicochemical textural properties and thermal properties. For the effect of different cultivated areas on glutinous rice properties the significant effect of different cultivated areas on chemical compounds viscosity and textural properties was observed (p?0.05). There was no significant effect of cultivated areas on amylose content (p>0.05). The highest protein and ash contents and the lowest setback hardness and chewiness values were found in the sample cultivated in Khao Wong district area. The aroma compounds analysis of rice samples revealed that methanecarboxylic acid was observed in glutinous rice cultivated in all studied areas. Whereas the highest content of 122-Trimethylcyclopropylamine was found in the sample cultivated at Khao Wong and Kong Chai districts. In addition the highest content of 2-cis-9-octadecenyloxyethanol was observed in glutinous rice cultivated at Huai Mek district.