The purpose of this study was conducted to investigate the perception of Korean kimchi among Americans' living in different areas in the United States. A questionnaire was given to males 126 (40.4%) and females 186 (59.6%) residing in Illinois and California. The results were as follows: 86.0% of the participants answered that kimchi was Korean in origin, and 84.1% reported that they had eaten kimchi. Additionally, 56.8% and 52.3% of the respondents in Illinois and California had purchased commercial kimchi at home-made. Among the kimchi they had experienced, out of the total respondents, 92.4% had eaten baechu kimchi, 45.5% had eaten mu kimchi and 42.4% had eaten oi kimchi (When the responses from the residents of Illinois were evaluated: 100.0% of the respondents had eaten baechu kimchi, while 47.7% had eaten mu kimchi, and 40.9% had eaten bak kimchi. Evaluation of the responses of residents from California revealed that: 88.6% had eaten baechu kimchi, 45.5% had eaten oi kimchi, and 44.3% had eaten mu kimchi respectively). For evaluation of the their kimchi preference of the overall population revealed that, 71.0% preferred baechu kimchi, 9.2% oi kimchi, and 8.4% mu kimchi (Of the respondents in Illinois: 69.8% preferred baechu kimchi, 14.0% mu kimchi and 7.0% bak kimchi, while for Californians: 71.6% preferred baechu kimchi, 11.4% oi kimchi and 8.0% bak kimchi, respectively). Regarding the primary reason they purchased commercial kimchi, 64.9% responded 'its taste' (67.4% in Illinois and 63.6% in California), additionally, 40.0% stated of the package they purchased was 200g (51.2% in Illinois and 34.5% in California). After having eaten kimchi, 45.5% answer reported that it tasted good, and the their primary reason for liking kimchi was its, 'spicy and hot taste' (51.3%), The main reasons for not liking kimchi were the odor (garlic, ginger, anchovy juice, etc) and it being too spicy, respectively. Regarding improvements for its expanded consumption, 25.0% answered 'not to improve', 22.7% answered 'reduce the strength of the strong seasoning', and 20.5% answered 'to allow over-ripening'.
This study was carried out to investigate the quality of white pan bread as affected by various amounts of Sunsik powder, in which the breads were prepared with 0, 5, 10 and 15% Sunsik powder. The samples compared quality characteristics, including proximate composition, weight and height, fermentation time, baking loss rate, texture, sensory evaluation in order to determine the optimal amount of Sunsik powder in the formulation. The moisture content of control bread was higher, in the breads made with Sunsik powder. The baking loss rate decreased with increasing Sunsik powder concentration. The fermentation time of the bread increased with increasing Sunsik powder content. In sensory quality, the bread containing 5% Sunsik powder was preferred over the control bread, by color, taste, flavor and softness, while the 15% Sunsik powder bread had the lowest preference scores. Textural properties by TPA(texture profile analysis) showed that hardness, gumminess, chewiness increased with increased Sunsik powder concentration.
Proceedings of the Korean Society of Crop Science Conference
/
2017.06a
/
pp.276-276
/
2017
This study was examined to establish a conditions for producing Tteokbokki using dry-milling rice flour which can save manpower and labor time. Since the cost of producing rice flour milled in a wet condition is 500 to 700 won/kg, which is more than twice as much as that of 300 won wheat flour, it is necessary to directly make rice flour from raw rice. The dry-milling rice flour used in the experiment was produced by Air mill (Nara machinary co. ltd., Tokyo, Japan) from 5 rice cultivars (Samkwang, Dasan-1, Boramchan, Seolgaeng, Hanareum-2), which were cultivated in A-san in 2015 year. Their particle sizes were 50, 100 and $150{\mu}m$ for each cultivar, respectively. A control was a wet-milled rice flour milled with a roll mill after the rice was soaked in water for 4 hours. The moisture content of dry-milling rice flour based on cultivars was 11 ~ 12%, and added water up to 50~55% of dry-milling rice flour weight. The RVA characteristic of peak viscosity was the highest in Dasan-1 and Hanareum-2, the lowest in Seolgaeng. The setback value used as an indicator of aging was the highest in Dasan-1, therefore Dasan-1 was expected to be quick solidification, resulting in the low tendency of sensory evaluation. The damaged starch was high in Dasan-1 and Boramchan (p<0.05) compared to others. The Hunter color L were no significant among cultivars and b value increased in all cultivars of dry-milling rice flour compared with control. The hardness of dry-milling rice flour was higher than that of the control, especially Dasan-1 and Hanareum-2 were the highest. Based on the sensory evaluation, the best cultivars were Boramchan, Hanareum-2 and Samkwang. The overall preference of dry-milling rice flour was good in particle size of 50~100um.
Proceedings of the Korean Society of Crop Science Conference
/
2017.06a
/
pp.257-257
/
2017
Being producing and evaluating oat-chocolate were a major goal in this study. There were various steps to make oat-chocolate. First, oat was roasted with an optimum roasting-temperature. Second, discovered the best natural antioxidant to extend storage period and improve quality of goods. Third, developed processing goods and made an evaluation of quality properties. We selected optimum roasting condition of $160^{\circ}C$ for 15 min based on the acid value and the sensory characteristics such as color, taste, smell and overall preference of oat flour. As for natural antioxidants, we made use of 3 kinds of antioxidants (cactus, lavender and green tea) and two concentrations (0.5 and 1%). In investigating antioxidants, an acid value was significantly decreased as the antioxidants were added (p<0.05). Nothing was as low in acid value as a chocolate with 1 % lavender flour in 7 days. Findings showed the sensory characteristics of products containing antioxidants such as green tea and cactus, were higher than those of Cont. in 7 days. A product including 0.5% green tea marked the best sensory score among antioxidants. Compared cost among 3 antioxidants, green tea was the cheapest. In the end, 0.5% green tea was selected as an optimal antioxidant to make high-quality oat chocolate. We made an end product by mixing green tea (0.5%) and oat. With respect to Hunter's color L (whiteness), a (redness) and b (yellowness), as green tea added, L and a level showed an increasing tendency. However, an opposition result was expressed in b level. When compared pH value and total acidity, it was statistically identical between Cont. and product with 0.5% green tea (G-0.5). There was different acid value among specimens. The acid value of G-0.5 was lower than that of Cont. up to 7 days, resulting in lower acid value than a ready-made product (D-Co.). When we assessed the sensory characteristics, G-0.5 was higher than other specimens such as Cont. and ready-made products (D-Co. and H-Co.) up to 6 days after manufacture. Put previous findings together, the addition of 0.5% green tea increased an antioxidative effect as well as the sensory acceptability of oat-chocolate.
Curcuma powder, having a significantly higher electron donating ability than glutinous rice flour (p<0.001), was added into hwajeon at 0-5% concentrations. There was no significant difference in the moisture content of hwajeon depending on the curcuma content, which was attributed to a similar water-holding capacity of curcuma powder and glutinous rice flour when subjected to hot water. As the curcuma content increased, the redness of dough and hwajeon increased, and the lightness of hwajeon decreased to a higher degree than that of dough. With the addition of curcuma, hardness of hwajeon increased and its adhesiveness decreased, presumably due to the increased content of amylose relative to amylopectin. Sensory evaluation revealed that the strong flavor of curcuma was a negative determinant of the preference for hwajeon. Nevertheless, total reducing capacity and 2.2'-diphenyl-1-picrylhydrazyl radical scavenging activity increased in proportion to the curcuma content in hwajeon (p<0.001).
The purpose of this study was to find out the adjective scales, which will be used in the qualitative sensory evaluation of taste, by collecting and analyzing adjectives of expressing taste of Korean language. For the purpose, we rated the mutual similarities among selected 92 adjectives which include the sense of taste, texture, smell and temperature from foods, and then carried out factor analysis and clustering analysis by using correlation based on the similarities. According to the factor analysis there are more than 10 important factors involved in the linguistic representation of taste including food temperature, texture and smell as well as taste. Also, from the cluster analysis, we found that the adjectives can be clustered with groups of the adjectives representing general taste, negative taste, texture and temperature of food. In addition we analyzed the correlation between the adjectives to represent the generic preference of taste and the adjectives to express individual factors of the preferences that are resulted from cluster analysis. The analysis results could show that we need to restrict the type of foods to find out the meaningful limited number of sensory adjective scales for taste in the future.
This study investigated the physicochemical and sensory characteristics of muffins prepared with various amounts(0, 3, 6, 9, 12%) of yacon powder. The specific gravity of the muffins prepared by adding yacon powder was higher than that of the control group. The height of the muffins added with 3% yacon powder was higher than that of the other groups. The weight of the muffins prepared with yacon powder showed no significant difference among all the sample groups. The volume and specific loaf volume of the muffins were decreased by addition of yacon powder. The baking loss rate of the muffins prepared by adding yacon powder showed no significant difference among all the sample groups. The moisture content of the muffins was increased, but their pH was decreased significantly by addition of yacon powder. DPPH radical scavenging activity of the control group was 21.45%, whereas the muffins prepared with yacon powder ranged from 57.23~85.46%. The a value of redness was increased, but L and b values were decreased significantly by addition of yacon powder. The springiness, cohesiveness and brittleness of textural properties of the muffins were decreased significantly by addition of yacon powder. Sensory evaluation scores in terms of appearance, taste, texture and overall preference for the muffins showed that 6~9% substituted sample groups were higher than those of the others. The results of this study suggest that adding 6~9% of yacon powder was the best substitution ratio for muffins.
Journal of the Korean Society of Food Science and Nutrition
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v.42
no.8
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pp.1220-1226
/
2013
The objective of this study is to investigate the quality characteristics and antioxidant activities of yanggaeng prepared with different amounts of aronia juice. Aronia juice was incorporated into yanggaeng at different levels (containing 50, 100, and 150 g of aronia juice in AJ 50, AJ 100, and AJ 150, respectively) based on the total weight of water. Total acidity and sugar contents showed a significant increase, however, pH showed a decrease with increasing levels of aronia juice. Hardness also showed an increase with increasing levels of aronia juice. Regarding texture profile analysis, hardness, springiness, and chewiness of yanggaeng were increased, however, cohesiveness was similar compared to the control and aronia juice added treatments. In chromaticity determination, L and b values showed a decrease, however, a value increased with increasing levels of aronia juice. The total polyphenols, flavonoids, and anthocyanin contents were increased proportionally with increasing levels of aronia juice. Antioxidant activity measured by DPPH and ABTS radical scavenging activities were significantly higher than those of control and increased proportionally according to the concentration of aronia juice. The sensory evaluation indicated that AJ 100 showed the best preference in color, taste, texture, flavor, and overall acceptance. These results suggest that aronia juice may be a useful ingredient in yanggaeng for improvement of quality and antioxidant potential.
Journal of the Korean Society of Food Science and Nutrition
/
v.31
no.4
/
pp.615-620
/
2002
This study was conducted to elucidate the characteristics of soybean sprouts cultured in water containing germanium. In three varieties of Eunhakong, Seomoktae and Subaktae, the yields of germanium soybean sprout were 10~20% more than those of control soybean sprouts after 5 day-cultivation. The hypocotyl of germanium soybean sprouts was thicker than that of control soybean sprouts, but there were no significant differences in the length of hypocotyl and the thickness of cotyledon. Germanium soybean sprouts showed deeper green and yellow color than control soybean sprouts. In addition, the hardness exhibited strongly in germanium soybean sprouts, especially Seomoktae. In the sensory evaluation, germanium soybean sprouts were better than control soybean sprouts in appearance, taste, flavor and preference.
Park, Seul-Gi;Song, Tae-Hee;Kim, Dong-Ho;Kim, Gil-Hah;Jang, Keum-Il
Journal of the Korean Society of Food Science and Nutrition
/
v.43
no.2
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pp.265-272
/
2014
In this study, we investigated the quality properties and sensory evaluation of pudding added with peach (Prunus persica L. Batsch) juice and gelatin. The water content and pH of pudding decreased with increased peach juice content, whereas the sugar content increased. Further, the water content of pudding decreased with increased gelatin content, whereas the pH was constantly maintained and the sugar content slightly increased. Regarding the color of pudding, the L and b values decreased with increased peach juice content, whereas the L value increased with increased gelatin content. Regarding the texture of pudding, hardness and springiness decreased with increased peach juice content, whereas adhesiveness, chewiness, and cohesiveness all increased. All texture properties increased with higher gelatin content. In the sensory evaluation of color, flavor, taste, texture, and overall preference, pudding with 60% (w/w) peach juice and 1.5% (w/w) gelatin showed the highest values. These results demonstrate the possibility of using high value-added products for peach processing in the food industry, as the addition of peach juice and gelatin enhanced the quality and sensory properties of pudding.
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