• Korean journal of food and cookery science
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• v.24 no.6
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• pp.849-855
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• 2008

DPPH radical scavenging activities were 66.80% by hot water extract and 41.86% by 80% methanol extract. Inhibitions of angiotensin I-converting enzyme (ACE) were 91.09% by hot water extract and 75.20% by 80% methanol extract. In this study, Sulgidduk samples were prepared with 1, 3, 5, and 7% concentrated sweet pumpkin powder (CSPP), and a control were examined for quality characteristics such as moisture content, water activity, color, textural characteristics, and sensory qualities, in order to determine the optimal ratio of CSPP in the formulation. The samples containing CSPP exhibited significantly higher moisture content than the control group. Water activity was not significantly different among the Sulgidduk samples. For the color, the control group presented significantly higher lightness as compared to the samples containing CSPP. The samples containing 1 and 3% CSPP had significantly higher greenness than the samples containing 5 and 7% CSPP. Yellowness increased as the level of CSPP content increased. In terms of textural characteristics, hardness, gumminess, and chewiness were highest at the 1% substitution level, while lowest at the 3% level. The CSPP samples presented significantly higher adhesiveness, springiness, and cohesiveness than the control group. In the consumer acceptance and characteristic intensity rating test, the control group showed significantly higher color and flavor as compared to the CSPP samples. Pumpkin flavor, delicious taste, and off-flavor increased with increasing amounts of CSPP. Softness, overall acceptability, and gumminess were not significantly different among the various samples tested. Sweetness was highest at the 5% substitution level, while lowest at the 1% level. In conclusion, the results indicate that substituting $3{\sim}5%$ CSPP to Sulgidduk is optimal, providing good DPPH radical scavenging activity and inhibition of ACE as well as reasonably high overall acceptability.

• Journal of the East Asian Society of Dietary Life
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• v.21 no.1
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• pp.60-67
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• 2011

This study was conducted to investigate the anti-oxidative abilities of certain products in Ulleungdo, such as sweet pumpkin (Danhobak), goat's beard (Samnamul), and Aster glegni (Bugigangyi), quality characteristics of sweet pumpkin taffy containing these products. Total polyphenolic contents of the Samnamul water and ethanol extracts were 2.95 mg% and 3.57 mg%, respectively, whereas those of the Bugigangyi water and ethanol extracts were 2.77 mg% and 2.75 mg, respectively. However, the total polyphenolic contents of the pumpkin water and ethanol extracts were 0.32 mg%. Reducing power ($OD_{700}$) of the Samnamul and Bugigangyi water and ethanol extracts (0.01%, w/v) was in the range of 1.62~1.91, which was higher compared to those of sweet pumpkin (0.02~0.03). Electron donating abilities (EDA) of the 0.01% Samnamul and Bugigangyi water and ethanol extracts were in the range of 74.91~79.21%, whereas those of the sweet pumpkin water and ethanol extracts were 3.79~14.99%. Optimum mixing ratio of steamed sweet pumpkin and water taffy for the preparation of taffy was 25:75 (w/w), as evaluated by sensory evaluation. Optimum adding ratio of Samanmul and Bugigangyi ethanol extracts to pumpkin taffy were 0.4% and 3%, respectively. However, the adding ratios of Samanmul and Bugigangyi powder to pumpkin taffy were 0.5~1.0% (w/w) and 1% (w/w), respectively.

• Journal of the Korean Society of Food Culture
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• v.33 no.3
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• pp.261-267
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• 2018

The sensory characteristics of a rice processed snack for 6 to 12 month old infants were investigated. The microbiological safety of all samples was also tested. The moisture content of snack of the SW snack was 6.33 significantly higher than in the other snacks (p<0.05). The sensory intensities of RW were highest in glossiness brightness, uniformity, sweet aroma, savory flavor, sweet flavor, chewiness and crispiness. In the; consumer acceptance test, RW showed significantly higher glossiness, uniformity, sweet aroma, savory flavor, sweet flavor, rancid, chewiness, adhesiveness, crispiness and overall acceptance than the other snacks (p<0.05). The aerobic plate counts were negative in all the samples tested. E. coli and pathogenic microorganisms tests were also negative or not detected, showing that all the samples tested were microbiologically safe according to the food code which applies to food manufacturers. Overall, potentially high value products of rice processed snacks for 6 to 12 month old infants were developed and tested They are expected to be utilized and in the competitive and growing infant food industry.

• Korean Journal of Food Science and Technology
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• v.25 no.6
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• pp.666-671
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• 1993

Mixtures (total solid content: 15%) prepared with whole milk added with skim milk powder and/or sweet potato and/or pumpkin were fermented with 0.205% gelatin, 2% sugar and yogurt bacteria. The fermented mixtures (curd yogurt) were evaluated for acid production (pH, titratable acidity), number of viable cell, sensory property and keeping quality. The acid production of all mixtures remarkably increased for the first 12 hours and there is no significant difference among the mixtures. The lactic acid bacteria counts in the all products after 24 hours incubation were above $6.4{\times}10^{9}cfu/ml$. In organic acids, the mixture added with skim milk powder was higher ratio of lactic acid content to total acidity than those added with sweet potato and/or pumpkin. The sensory score of mixture containing sweet potato was best but curd yogurt containing pumpkin reduced the sensory property. When each mixtures were kept at $5^{\circ}C$ for 15 days, pH, titratable acidity, and number of viable tells of yogurt were not changed.

• Journal of the Korean Society of Food Science and Nutrition
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• v.44 no.2
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• pp.291-295
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• 2015

Sweet pumpkin is a squash fruit that contains low total solids but is rich in carotene, pectin, mineral salts, vitamins, and other substances beneficial to health. An attempt was made to develop a value-added food product; sweet pumpkin powders (SPP) were incorporated into a model system of noodles as a healthy food ingredient, and selected physicochemical properties and consumer preferences were determined. Elevated SPP concentration was associated with increased pH, soluble solids, and turbidity; however, moisture absorption decreased (P<0.05). Increasing amounts of SPP significantly reduced both raw and cooked noodle brightness (L*); however, yellowness (b*) appeared to increase. In addition, 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity increased significantly (P<0.05). The consumer acceptance test indicated that incorporation of 10% SPP to the formulation is recommended to take advantage of the health benefits of SPP without major sacrificing the quality acceptance of consumers.

• Journal of the Korean Society of Food Culture
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• v.20 no.4
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• pp.487-497
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• 2005

War against Japanese(1592-1599) and war against Manchurian(1636-1637), which had been occurred in Korean Peninsula throughout the history, and frequent trade with foreign countries since $18^{th}$ century have led to a distribution of foreign food into Korea. Several examples for this include tomato, apple, watermelon, maize, pea, cowpea, peanut, potato from China and red pepper, pumpkin, and sweet potato from Japan. Since these foods had been brought into Korea, they have been cultivated suitable for Korea's climate and land. Foreign foods with a few exceptions tend to have high calories. For instance, along with potato and sweet potato, pumpkin is considered a high-calorie food containing lots of starches as it becomes ripening. This helped a wide spread of the foreign foods across the nation where intake of high-calorie foods was critical for Korean people's nutrition at that time. Among those foods introduced from foreign countries, red pepper had a greatest impact on the dietary life-style of Chosun Dynasty. The use of red pepper has been greatly expanded from main ingredient to seasoning and garnishing in various forms of red pepper such as red pepper paste, red pepper powder, and thick soy paste mixed with red pepper. Red pepper was made eating habits is hot besides dye red colored to traditional food, because steaming and boiling is frequently cook method, fermentation food also food color is achromatic therefore food color is and mixture with red pepper, picked fish and chinese cabbage new kimchi culture came into being.

• Journal of the Korean Society of Food Science and Nutrition
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• v.37 no.7
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• pp.914-920
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• 2008

In this study, hard roll breads were prepared with 3, 6, 9, 12, and 15% of concentrated sweet pumpkin powder (CSPP). The samples and a control were then compared in terms of quality characteristics, including pH, total titratable acidity, fermentation power of dough expansion, specific volume, baking loss, moisture content, color, textural characteristics, external and internal surface appearances, and sensory qualities of bread in order to determine the optimal ratio of CSPP in the formulation. As CSPP content increased, pH of dough, specific volume, baking loss, and lightness of bread decreased, while total titratable acidity of dough, pH, total titratable acidity, moisture content, and redness of bread increased. Fermentation power of dough expansion increased as incubation time increased. The CSPP samples had significantly higher yellowness, hardness, cohesiveness, gumminess, chewiness, and resilience than the control group. Adhesiveness was the highest at the 12% substitution level, while the lowest at the 6% level. Springiness increased with increasing CSPP content. In the sensory evaluation, as CSPP content increased, scores for color and consistency of crumb decreased, while scores for aroma of sweet pumpkin, sweetness, and delicious taste increased. Density of crumb pore were maximal with the 12% CSPP substitution. The CSPP samples had significantly higher uniformity of crumb pore and springiness of crumb than the control group. However, mouth-feel and overall acceptability showed the reverse effect, obtaining fairly good scores. In conclusion, the results indicate that substituting $6{\sim}9%$ CSPP to hard roll bread is optimal, providing good physiological properties as well as reasonably high overall acceptability.

• Journal of the Korean Society of Food Culture
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• v.29 no.1
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• pp.91-100
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• 2014

This study investigated the antioxidative activities and quality characteristics of gruel as a home meal replacement with Angelica keiskei powder pre-treated by far-infrared radiation or freeze-drying methods. Far-infrared treated Angelica keiskei powder (F-IAP) showed significantly lighter, weaker green, and stronger yellow color values than powder subjected to freezedrying (FAP) (p<0.001). F-IAP showed higher total phenolic compound contents than that of the FAP. ABTS radical scavenging activity of F-IAP was 50.31%, which was significantly higher than that of FAP, at 43.51% (p<0.05). Color values of gruel significantly decreased with increased addition of Angelica keiskei powder (p<0.05). Gruels containing far-infrared treated Angelica keiskei powder (F-IAG) showed higher total phenolic compound contents as well as ABTS radical scavenging activities compared to the gruels containing freeze-dried Angelica keiskei powder (FAG). Gruels containing 5 g of Angelica keiskei powder showed 2.0 to 2.5 times higher antioxidant activities than those containing powder alone due to the presence of other ingredients with antioxidant activities such as black soybean or sweet pumpkin. In the results of sensory evaluation, F-IAG containing more than 5 g of Angelica keiskei powder had higher sweetness and roasted grain flavor, as well as lower bitterness and astringency compared to FAG. Sensory acceptance tests of all samples showed higher scores than 5.0 representing possibilities of successful development of gruels as a home meal replacement containing Angelica keiskei powder.

• The Korean Journal of Food And Nutrition
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• v.24 no.4
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• pp.777-785
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• 2011

For the purpose of develop semi-solid baby food, we investigated ingredients, processing aids as a thickener, processing suitability test, natural antibrowning agent, packing method, novel preservation technology, storage test and quality evaluation. In results, semi-solid baby food was developed. It's formulation is eco-friendly apple as a main ingredients, natural rhubarb extract 5% and thickener 4%. Thickener was used brown rice puffing powder and sweet pumpkin puffing powder. High pressure processing(HPP) and pouch packaging was used as processing and novel preservation technology. In results of storage test and quality evaluation, shelf-life of semi-solid baby food was 15 days in $5^{\circ}C$ cold storage and hedonic score of sensory evaluation was 4.3/5.0. Taste of them was fresh and sweet.

• Culinary science and hospitality research
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• v.16 no.2
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• pp.77-95
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• 2010

This study aims to analyze importance and performance factors on the quality of wellbeing fusion menu of fusion restaurants to provide helpful information for building up a detailed marketing strategy and present considerations for sales increase and more efficient business results. Importance on menu quality scored a higher level than performance on the whole in fusion restaurants. Notably, in regard to attributes of menu quality, it was found that respondents put higher stress on 'taste of food', 'sanitary of food', 'cleanliness of vessels', 'quality of menu' and 'freshness of food' than anything else. Wellbeing fusion menu which has an high intake frequency rate includes 'green vegetable noodles with black bean sauce', 'sweet pumpkin salad', 'salmon salad', and 'shrimp vegetable gratin' in that order. On the other hand, the intake frequencies of 'ovened green perilla gratin', 'pomegranate dressing tofu', 'bacon roll with glutinous rice powder', and 'pomegranate dressing bacon' were rated very low. In terms of the IPA analysis on wellbeing fusion menu quality, it was important to continuously maintain 'taste of food', 'sanitary of food', 'cleanliness of vessels', 'freshness of food', 'quality of menu', 'diet menu(low fat, low calories)', 'vegetable menu', 'nutrition of food', 'variety of menu' etc. Such items as 'price', 'distinction with existing food', and 'environment-friendly organic agriculture food material' are in need of intensive care and operation.