This study was performed to investigate the effect of steamed garlic powder (SGP) on the quality characteristics of Jochung, saccharide by barley melt. Physicochemical properties and sensory quality were determined in Jochungs were prepared that 5% (SGP 5), 10% (SGP 10), 20% (SGP 20) and 30% (SGP 30) of SGP to sikhe for making jochung and hard boiled (W/W). Turbidity and viscosity of SGP added groups increased than control, significantly. The viscosity was $133{\pm}10^3$ cps in control group, it higher than SGP added groups ($140{\pm}11^3{\sim}272{\pm}2^3$ cps). The pH decreased with increasing SGP concentration. Reducing sugar was significantly higher in SGP added groups than control group, especially 30% SGP addition group in $44.66{\pm}0.26$ mg/100 g. HMF (Hydroxymethyl-furfural) content increased with increasing of SGP concentration, and 30% SGP addition group was higher in 48% than control group. In HPLC determination, free sugars content increased with amounts of SGP addition level. Fructose and glucose contents increased while maltose and raffinose contents decreased. Fructose content was $0.84{\pm}0.02$ mg/100g in control group but $1.36{\pm}0.03{\sim}1.62{\pm}0.01$ mg/100 g in SGP added groups. In the sensory evaluation, the color of Jochung decreased dose dependently with the SGP. Garlic flavor was significantly greater in SGP added groups compared to that of control group. The overall acceptability had not significantly difference among control, SGP 5 and 10 group. Preference was decreased in contain more than 20% of SGP added groups. The optimal concentration of SGP was found in the range of less than 10%.
This study was carried out in order to optimize the manufacturing condition of fried garlic flakes as well as to investigate the physicochemical properties of the flakes. Fried garlic flake samples were prepared as follows: garlic was sliced by a thickness of 1.5 mm, 2.0 mm, 2.5 mm, which were measured by a thickness gage. The samples were fried in vegetable oil under different temperatures of $140{\sim}150^{\circ}C$, $160{\sim}170^{\circ}C$ and $180{\sim}185^{\circ}C$. The compression strength depending on the height (h) was measured in order to find the thickness effect by the rheometer (force control: 50 N, h: 3.25 mm). Moreover, the sample with 1.5 mm thickness showed crisp phenomena of the split compared with the crush shape of the 2.0 mm and 2.5 mm thick samples. The result of strength for time dependence showed a sample with a thickness of 1.5 mm, which was measured 5~9 times more than the 2.0 mm and 2.5 mm thick samples. We thought the reason that the 1.5 mm sample had less response power equivalent to compression force than the other samples. Alliin has been found to affect the immune responses in the blood, it is a derivative of the amino acid cysteine and is also quite heat stable. The LC system with a UV detection at 210 nm consists of a separation on a Zorbax TMS column and isocratic elution with water and ACN as a mobile phase. The alliin contents of raw and fried garlic flake under $140{\sim}150^{\circ}C$, $160{\sim}170^{\circ}C$ and $180{\sim}185^{\circ}C$ were 18.10 mg/mL, 14.0 mg/mL, 11.6 mg/mL and 11.1 mg/mL, respectively. The decrement of alliin content under different temperature was a small quantity hence, we confirmed that the increasing manufacturing temperature was not affected by the alliin content. Examining for the particle structure of fried garlic flakes by a polarization microscope, the color of the sample treated at $160{\sim}170^{\circ}C$ was pure yellow. Furder, the fiber shaped particle, which has an effect on the tough texture, almost did not appear compared to the different temperature conditions. Finally, the sensory test for the preference of fried garlic flake under different conditions was carried out and the scores for various sensory characteristics were surveyed. According to the physicochemical measurements and sensory evaluation, we confirmed that the optimum manufacturing condition of fried garlic flake was 1.5 mm thick at a temperature of $160{\sim}170^{\circ}C$.
Germinated brown rice is a useful material that contains natural nutrients and biologically active substances. This study was conducted to develop a optimal composite recipe for functional germinated brown rice cookie with added spinach (spinacia oleracea L) powder and with high preference in all age groups. The experimental design utilized herein was based on the Central composite design methodology of response surface, which included 16 experimental points, including 2 replicates for spinach, sugar, and butter. The physical, mechanical, and sensory properties of the test were measured, and these values were applied to the mathematical models. A canonical form and perturbation plot showed the influence of each ingredient on the mixed final product. The results of spread ratio decreased significantly with increases in spinach powder, sugar, and butter(p<0.01). L value shows that lightness decreased significantly with an increase in sugar(p<0.05), but the a and b values were not significant. Sensory evaluation found significant values for color(p<0.05), flavor(p<0.05), texture(p<0.05) and overall quality(p<0.05) in the predicted model. The optimum formulation by the numerical and graphical methods was calculated as follows: spinach powder 3 g, sugar 35.5 g butter 54.4 g.
This study was carried out to examine changes in the quality characteristics of Aralia continentalis Kitagawa (AcK) Jangachi made with different $CaCl_2$ and seasoning treatments during storage at $4^{\circ}C$ for 6 months. The results exhibited there were no significant changes in pH, acidity, and salinity in the various samples. The numbers of total bacterial counts and lactic acid bacteria increased slowly during the early storage period and then increased rapidly in the third month. In the fifth month they reached their highest level near $6.6{\times}10^{6}cfu/ml$ and then decreased thereafter. The sample treated with $CaCl_2$ exhibited a higher degree of hardness than the untreated sample. Finally, the sensory characteristics of the AcK Jangachi were highly acceptable during the entire storage period in terms of color, smell, bitterness, texture, and general preference regardless of the $CaCl_2$ treatments.
The objective of this study was to evaluate the quality characteristics of lotus leaf Dasik prepared by additions of lotus leaf powder at differing levels (0%, 3%, 6%, 9%, 12%). The proximate composition of the lotus leaf powder was 6.00% moisture, 19.56% crude protein, 0.78% crude fat, 64.7% carbohydrate, and 8.93% crude ash. As the lotus leaf powder level increased, the moisture content of the lotus leaf Dasik increased however, the L, a, and b values of the lotus leaf Dasik significantly decreased. According to the mechanical evaluation results, hardness increased as the level of lotus leaf powder increased, adhesiveness and springiness were not significantly different among the groups, and cohesiveness was evaluated as higher in the control group as compared to the lotus leaf groups. In the sensory evaluations, the 6% lotus leaf Dasik prepared with 188 g of flour, 12 g of lotus leaf powder, and 200 g of honey showed the highest preference scores and was therefore chosen as the optimal product.
This study was conducted to compare the commercial noodle flours (n=8) of each milling company in Korea. Eight noodle flour samples were classified into two types of flours, all-purpose flour (AF, n=4) and premium noodle flour (PF, n=4) and tested using general component analysis. Texture assessment and sensory test for doughs and noodles were performed. The dough strength was positively correlated with lower ash content, smaller particle size and longer formation time. Sensory evaluation found that weaker cooked noodle strength correlated with higher scores in preference and softness. As a result, it can be suggested that PF is better than AF in noodle making because PF has lower ash content and smaller particle size than AF. As such, flour characteristics that produce noodle flour of uniform quality can be obtained by combining flours with the above processing characteristics to fit the qualities desired.
To prevent deterioration of the jujube wine quality by using heat sterilization while commercial production, ultrafiltration and microfiltration were applied. The permeate flux and physicochemical properties of jujube wine determined by MF and UF membrane ($0.2\;{\mu}m$ pore size and 50 K dalton cut off) were investigated. The permeate flux increasing caused the increased operating pressure. The Hunter L value of jujube wine treated MF and UF was increased and that of b value was decreased. The turbidity of jujube wine treated MF and UF was largely decreased. And the values of pH, ethanol, total acid and soluble solid were decreased or were at the same level comparing with untreated jujube wine. Retention percentage of sugar and organic acid was more than 80% and was not influenced by operating pressure. Results of sensory evaluation indicated that the color of UF was superior to un-treatment and commercial ones. And the flavor and taste were not significantly different with untreated jujube wine. The quality deterioration of commercial jujube wine could be improved by MF and UF. According to the sensory evaluation, there was also not difference between MF and UF for preference test. Therefore, the quality of jujube wine could be improved by MF having better separation yield efficiency than UF.
The aim of this study was to determine changes of physicochemical properties and microorganisms of commercial Makgeolli during storage at $10^{\circ}C$ and $25^{\circ}C$ During storage at $10^{\circ}C$ for 11 days, ethanol contents did not increased up to 7.0%, and pH and total acidity were ranged with 3.12-3.99 and 0.22-0.28%, respectively. Makgeolli which was storaged at $25^{\circ}C$ for 11 days showed more than 7.0% of alcohol contents, pH of 3.96-4.17 and total acidity of 0.27-0.30%. Yeast cell counts showed maximal $2.90-16.00{\times}10^7$ CFU/mL at $10^{\circ}C$ for 3 days and $1.12-29.40{\times}10^7$ CFU/mL at $25^{\circ}C$ for 1 day. Lactic acid bacteria and total bacteria cell counts of Makgeolli which was storaged at $25^{\circ}C$ for 11 days were higher than those $10^{\circ}C$ storage. In preference test, Makgeolli from storage at $10^{\circ}C$ for 11 days was showed the level of 4.9-5.2 points however, Makgeolli from storage at $25^{\circ}C$ for one day showed below 5.0 point.
This study aims to grasp the general conditions regarding university students in security related majors in Korea. Followings will be covered here: what motivated them to choose those majors, hw much are they git jobs through the education, what is their conscioucness on their majors, jobs, and courses like, and what effects their job preference. And ths study also aims at helping the student with their future plans such as admission to a school of higher grade and choosing their job. For this study, we distributed 340 copies to the students in security related majors at 4 four-year colleges and 1 two-year college, and collected 298 copies by means of quota sampling method. For collected questionnaires, we used individual T-test verification and one-way ANOVA analysis to grasp the situation. Significance stabdard for the test results was set as p<0.05. Followings are the test results. The results on analysis of satisfaction rate on their curriculums, classes, and majors show that students in security-related majors showed different satisfaction rate and different averages according to their sex and the year of the college. In the analysis on the relationship between major education and employment of students in security-related majors, the result of curriculum improvement and scholaril attainments analysis showed statistically significant relation. When students in security-related majors were surveyed on their consciousness of their future plans such as getting jibs, two-year college students had more certificates of qualification for employment than four-year college students.
This paper explores the way and the extent to which drivers' route choice was influenced by uncertain information. In particular, this paper investigates the effect of qualitative information on route choice when drivers face a choice with different degrees of uncertain information. The SP survey was conducted and route choice legit models were estimated. We also applied Prospect Theory to the analysis of drivers' decision making under uncertain information. The main findings are firstly, drivers tend to prefer a route with information than(to) one without information. This indicated that providing charge information encouraged drivers to choose the routes for which information is provided in preference to those for which it is not provided. Secondly, drivers also prefer a route with a certain and precise information over one with uncertain and imprecise information. Thirdly, when the information is given as a range, the size of the range of the information influenced route choice slightly and as the range of the charge increases, the route becomes slightly less unattractive. Fourthly, when the information is given as a range, drivers' route choices are influenced more by the median value of the ranges than by the size of the overall ranges of the information. Application of Prospect Theory to the results explains the way drivers may be interpreting the choice situation and how they make a route choice in response to uncertain information. The results of this paper implicate that drivers' decision making under uncertainty seem to be very complicated and flexible, depending on the way drivers interpret the choice situation. Therefore, it is recommended to apply wider related theories to the analysis of the drivers' behaviour.
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