• Journal of the Society of Cosmetic Scientists of Korea
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• v.24 no.1
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• pp.87-99
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• 1998

We have studied the effects of red ginseng root extract on the derease of MMS-induced gemotoxicity in cultured NIH3T3 cells. The increase in survival and the recovery from DNA synthesis inhibition in MMS-treated cells as a function of normal medium incubation time was potentiated, at a rate higher than those in UV-irradiated cells, by the presence of the ginseng extract. The extract also increased the MMS-induced excision repair as determined by unscheduled DNA synthesis. The amount of MMS-induced DNA single strand breads that are accumulated by polymerase inhibitors was increased, but as a rate lower rate than in UV-induced strand break, by the presence of the extract. These results suggest that the red ginseng extract increase MMS-induced repair and could be used as a reagent for protectiong alkylating agent-induced genotoxicity and cytotoxicity.

• Food Science and Preservation
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• v.12 no.1
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• pp.23-27
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• 2005

Yolk index (In, Haugh unit (BU) and weight loss of quail egg were measured to evaluate the effect of composite film (SPI/corn starch). Also, the effect of composite film was investigated to extend the shelf-life of sandwich foods. The quality characteristics of sandwich food was measured by the weight increment The weight reduction ratio for quail egg coated with composite film showed $8\%$ increment after 20 day storage. Yolk index and Haugh unit were significantly different between the uncoated and coated quail eggs with composite film solution. Sandwich coated with composite film showed the less weight increase for 12 hour storage compared to controls.

• Journal of the East Asian Society of Dietary Life
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• v.22 no.4
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• pp.440-451
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• 2012

The purpose of this study was to provide basic information on nutrition education for proper meal purchase habits by conducting a survey on the adolescents' meal purchases, which is gradually increasing nowadays. The survey was conducted on 311 middle school students living in Gyeonggi province. The largest number of students (79.1%) received an allowance under '2,000 won'. Among those students who received a daily allowance, 70.7% of students spent under '1000 won' a day on meal purchases. Most students answered 'meal purchase is necessary'. Of the reasons for thinking that meal purchases are necessary, 'for staving off hunger' took the highest ratio (67.1%). As for standards of food choice, the largest number of students answered 'taste' (57.6%). As for frequency of meal purchases, most students answered 'once or twice a week', and with regard to day of the week, 'weekdays' took the highest ratio. As for possibility of balanced nutrition by meal purchases, the answer 'surely possible' took the highest ratio. Asked whether or not one had learned nutrition education on meal purchases, 73% answered 'no'. Asked about the necessity of nutrition education on meal purchases, 'necessary once' took the highest ratio. The most preferred purchase meals were breads, snacks was ranked second, followed by frozen foods, beverages, fast-foods, rice-cakes, flour-based foods, ice-cream, and fruits. To sum up the results, most students perceived that meal purchases are necessary. However, high quality meal purchases were not achieved, as most of the students did not verify nutrition labeling, and placed emphasis on 'taste'. Further, many students wanted nutrition education on meal purchases while only a few had actually received it. Therefore, systemic, regular, and multilateral nutrition education conducted at home, school, and society will contribute to establishing proper meal purchase habits.

• Food Science and Preservation
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• v.11 no.4
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• pp.503-507
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• 2004

The quality of bread made of sprouted brown rice ($20\%$), wheat flour and pumpkin powder was investigated. The bread was manufactured with 0, 1, 3 and $5\%$ pumpkin powder (W/W) with increasing and wheat flour. Volume of the breads were decreased from 4.68 mL/g to 3.60 mL/g as pumpkin powder contents increased from $0\%\;to\;5\%$. Lightness decreased with increasing pumpkin powder contents. Yellowness increased from 10.97 to 27.01 with increasing pumpkin powder contents. Textural characteristics of bread crumb were influenced by adding additives pumpkin powder. Hardness, adhesiveness and chewiness of bread decreased as the added level of pumpkin powder. In sensory evaluation, sensory scores for color, flavor and overall quality of bread increased with increasing pumpkin powder contents.

• Korean journal of food and cookery science
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• v.30 no.3
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• pp.262-270
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• 2014

This study was conducted in order to investigate the properties of bread making and quality improvement when wheat flour is replaced with whole waxy sorghum flour. Sorghum flour, which was prepared with two types of milling methods of pin mill and ultra fine pulverization, was used at different levels ranging from 10, 20 and 30%, respectively. The pasting properties of peak viscosity, setback viscosity and pasting temperature of the composite flour containing pin-milled sorghum flour were higher than those of ultra fine pulverized sorghum flour. The volumes of sorghum bread were lower than that of wheat bread; moreover, they gradually decreased with increasing amounts of sorghum flour, which has inferior dough properties and therefore collapses in the oven. The use of vital gluten (12% based on sorghum flour weight) and emulsifier (SSL; sodium stearoyl lactylate) increased the extensibility and resistance to the extension of the dough, thereby improving its rheological properties. Thus, the oven spring of bread containing sorghum was improved, demonstrating as loaf volume increase up to 15%. However, in the case of breads containing 30% sorghum flour, the loaf volumes were still unacceptably low. Therefore, the formula and the bread making process were further modified as follows: An increase of vital gluten ($12%{\rightarrow}18%$) and shortening ($3%{\rightarrow}6%$), a decrease of mixing time and dough fermentation temperature, and the addition of sorghum flour after gluten development during mixing. The above modifications resulted in the improvement of sorghum bread quality. Therefore, we suggest that pin-milled sorghum flour is more appropriate than ultra fine pulverized sorghum flour for making bread.

• Korean journal of food and cookery science
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• v.33 no.3
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• pp.264-274
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• 2017

Purpose: The purpose of this study was to analyze the meal types by cooking methods provided at different meal provision places using the 2015 Korea National Health and Nutrition Examination Survey. Methods: A total of 42,441 meal data on adults from the 2015 Korea National Health and Nutrition Examination Survey were used for analysis. The data were analyzed by complex sample $x^2-test$ of independence and complex sample logistic regression analysis using SPSS 23.0 for Windows. Results: The meal provision place showing the highest frequency was home (60.2%), followed by commercial (32.5%) and institutional foodservices (7.3%). The meal types by cooking method most frequently consumed were rices (18.3%) and kimchis (16.6%). The results of the complex sample logistic regression analysis showed that breads & snacks, steamed or braised dishes, fried dishes, and fresh seasoned vegetables were more likely to be consumed at commercial or institutional foodservices than at home. In addition, noodles & dumplings were more likely to be consumed at commercial places, and Korean soups were consumed at institutional foodservices. Conclusion: From the results of this study, it is suggested to develop recipes for substitution of fried dishes and to develop low sodium recipes at commercial and institutional foodservices. In addition, education of consumers of commercial foodservice is needed to reduce consumption of fried dishes, salted seafoods, and pickled vegetables and encourage consumers to choose meals from institutional foodservice managed by dietitians.

• Korean Journal of Food Science and Technology
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• v.29 no.5
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• pp.982-986
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• 1997

Propolis extract was added to white bread(P1-1.48%, P2-0.74%, P3-0.37%), prepared in the straight-dough method, and its effects on shelf-life, antimicrobial activity, staling and sensory evaluation of white bread were investigated. In all P1, P2 samples, added propolis inhibited the growth of fungi, and the more propolis extract was added, the higher degree of inhibition of fungal growth was observed. The staling rates of white breads with P1, P2 and P3 were retarded by 22.5%, 19.2% and 6.4% respectively compared to that of control, and the Avrami exponent was similar in all samples. As a result of sensory evaluation, flavor, off-flavor, texture and overall acceptability of P2 and P3 were not significantly different from that of control.

• Journal of the Korean Society of Food Science and Nutrition
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• v.27 no.1
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• pp.182-190
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• 1998

This study was conducted to compare food intakes between newly diagnosed diabetics and non-diabetics by food frequency questionnarie in adults in rural area. Food frequency questionnaire containing 65 food items was executed to 2,406 subjects over 30 years of age living inYeonchon-gun, Kyungki province. Frequency of consumption of each food items were divided into 9 categories ranging from 'over 3 tiemes a day' to 'never'. Fasting blood glucose levels were measured and 2-hour glucose tolerance test was administered for each subject. Newly diagnosed diabetics were identified as those with fasting blood glucose level ≥ 140mg/dl or 2-hour postprandial glucose level ≥200mg/dl and without previous diagnosis of diabetes. Intake frequencies of food items were compared between newly diagnosed diabetics and nondiabetics. For each food item examined, odds ratios for developing diabetes were calculated for people consuming more frequently, after adjusting for age, BMI and sex. Food intake frequencies were compared according to the occurrence of diabetes. Twenty four items were more frequently consumed by nonidabetics and 12 items were more frequently consumed by newly diagnosed diabetics. Odds ratios for diabetes were significantly lower for breads, biscuit, beef loin, beef tender loin, pork belly, fish paste, coffee, cola/cider, candy, beer, chongak kimchi, carrot, mushrooms and other white vegetables, banana, melon and juice. On the other hand, odds ratios for diabetes were higher for zucchini and garlic. Although this was a cross over prevalence study, the results indicate that consumption frequencies of several food items were related with the occurrence of diabetes in the study subjects.

• Journal of the Korean Society of Food Science and Nutrition
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• v.28 no.1
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• pp.118-125
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• 1999

Effects of adding of Angelica keiskei Koidz flour on the quality characteristics of bread were inves tigated. The content of total dietary fiber was 31.89% in flour of Angelica keiskei Koidz leaf and 43.37 % in that of stem. The content of insoluble dietary fiber increased by blanching, but those of soluble dietary fiber and insoluble dietary fiber increased by steeping in NaCl solution. In the results of sensory evaluation of Angelica keiskei Koidz flour, leaf steeped in NaCl solution and blanched stem showed good overall preference. With the addition of Angelica keiskei Koidz flour, water binding capacity and loaf weight increased, while the loaf volume decreased. The loaf volume of bread added with leaf steeped in NaCl solution and blanched stem were higher than those added with natural Angelica keiskei Koidz flour. The lightness and redness values decreased with the increase of Angelica keiskei Koidz flour content in bread but yellowness values increased. In the texture analyzer measurement for bread added with Angelica keiskei Koidz flour, hardness and springiness somewhat increased, while cohesiveness, gumminess and chewiness decreased. As the results of sensory evaluation of bread added with Angelica keiskei Koidz flour, the score of the breads added with 5% leaf steeped in NaCl solution and 5%, 10% blanched stem were somewhat lower than those of control bread. In terms of rate of addition of Angelica keiskei Koidz flour, the bread added with leaf at 5% level, natural stem at 5% level and stem by blanching at 5%, 10% level had good overall preference.

• Journal of the East Asian Society of Dietary Life
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• v.14 no.5
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• pp.487-494
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• 2004

The effect of water extracts of Chungkukjang(WEC: 10%, w/v), which was prepared using Bacillus subtilis isolated from Korean traditional Chungkukjang, on the pH, acidity and volume of the dough, and loaf volume index(LVI), color, texture, retrogradation degree, microscopic observation and sensory quality of the bread were investigated. Experimental plots were divided to 3 groups(Control; without WEC, I; added 2.5% WEC against total amount of water, II; added 5.0% WEC against total amount of water). There were no significant difference in pH and acidity among each experimental groups. Dough volume were higher but LVI were lower in the 1- and II-bread than those of control group. L* values of the top crust and internal tissue in the I- and II-bread were lower than those of control group. The higher addition amounts had the lower L* values. Hardness, strength, gumminess and brittleness were higher, but cohesiveness and springiness were lower in the WEC-breads than those of control. In the results of microscopic observation, there were scarce of the bigger starch granules and a sparse structure, while there were smaller starch granules in the WEC-bread. The scores of crispy taste of the WEC-bread were lower than those of the control group, but there were no significant difference in tenderness, odor, savory taste and overall acceptability between the control and the I-bread. The retrogradation rate of the bread stored for 3 days at 25℃ was 45.09% in control, 17.92% in I-bread, and 12.45% in II-bread, respectively.