This study was carried out to investigate the effects of addition ratio(0, 5, 10 and 20%) of various minor ingredients(prosomillet, glutinous barley, oat, wheat, yellow and black soybean, safflower seed, chocolate etc.) on mechanical and sensory characteristics of Sulgiduk. In mechanical evaluation, hardness, cohesiveness and gumminess were increased with increasing the content of prosomillet, glutinous barley, oat and wheat to be added, and did not show any relationship the content of them to be added on yellow and black soybean, safflower seed and chocolate. In sensory evaluation, quality characteristics of Sulgiduk added with prosomillet, oat, yellow and black soybean and chocolate with 5~10%, respectively was better than those of Sulgiduk without the minor ingredients. Change of hardness on Sulgiduk added with oat, yellow soybean, black soybean and chocolate was lower than those of Sulgiduk without them during storage of room temperature.
The purposes of this study were to assess th importance and performance of food suppliers and to explore the ways to improve the school foodservice purchasing management. The questionnaire regarding purchasing was composed of two parts. The part one consisted of questions on general characteristics of dieticians and school foodservice operations, and the part two was composed of questions on the importance & performance of food suppliers. Completed questionnaires were received from 286 dieticians of elementary school foodservice operations in Seoul. Statistical data analysis was completed using the SPSS/win for descriptive and t-test. In dieticians' demographic data, 36.6% were over 30 years old, 32.4% were 28~29 years of age and 31.0% were below 27years old. Most of the respondents(68.3%) had overall working experiences less than 58 months and almost half of them(56.3%) were married. The school foodservice operations which employed a chef were 50.3%. The food suppliers' attributes that were recognized by the dieticians with high value of mean importance scores were: food quality, maintenance of food quality, accuracy in filling orders, quality of delivery facilities, on time delivery and packaging. Average mean score for importance was 4.33('important') out of 5 and mean score for performance was 3.50('so-so') out of 5. By IPA techniques, the attributes that deserve higher attention were those that ranked high in importance and low in performance(Quadrant A). The coordinates in Quadrant A were geographical location of supplier, maintenance of food quality, provision of information on cost variation and salesman's knowledge.
This study was conducted to investigate the effects of corn peptide(CP) on lipid metabolism. Sprague-Dawley(S.D) male rats were assigned to three dietary groups {control diet(CD), high fat diet (HFD) & high fat com peptide diet(FCD)} and fed 4 weeks to examine the effects of CP. There were no significantly different in cholesterol concentrations in the liver among the groups. However, triglyceride(TG) concentrations of the FCD & CD significantly lower than the HFD. Fecal excretion of neutral steroids & bile acids of the FCD significantly higher than the CD & HFD. Serum total cholesterol TG & LDL-cholesterol concentrations of the FCD & CD significantly lower than the HFD. These results suggest the improvement of lipid composition in serum by CP might be inhibit of lipid absorption in intestine & increment of neutral steroids & bile acids excretion in feces.
The facts of job satisfaction and their perceived importance among elementary school foodservice dietitians were assessed. The survey instrument consisted of three parts: the job satisfaction survey was used to measure facets of job satisfaction and the level of total satisfaction; perceived importance questions for corresponding job facets; and demographic items. A survey of school food service operations was undertaken and detailed information was collected from 170 dietitians. The collected data were processed using the SPSS package program for descriptive analysis and analysis of valiance. School foodservice dietitians' importance and satisfactions scores on their job and working environment were 4.25 and 2.83, respectively. The respondents rated the subscales of 'communication' and 'nature of work' the highest and the subscales of 'pay' and 'working environment' the lowest The results of facet satisfaction scores and corresponding perceived importance scores were paired to be plotted on the Importance-Performance Analysis Grid. IPA grid was used to provide a strategy for food service managers to counteract dietitian dissatisfaction.
To develop the low-temperature and long-term fermented kimchi, kimchi was prepared according to the recipe of a specific ratio of major and minor ingredients and adjusted its salinity to 3.7%. Prepared kimchi fermented at 15±1℃ for 24 hours and transferred and fermented in a refrigerator only used to make low-temperature and long-term fermented kimchi at -1±1℃ for 30 weeks. During 30 weeks of fermentation the changes in physicochemical and microbiological properties of low-temperature and long-term fermented kimchi were studied. The initial pH of 6.47 decrease gradually and dropped to pH 4.0 after 14 weeks of fermentation, and then it maintained at same level. Acidity increased to 0.49% on 2 weeks of fermentation and kept at 0.47 ~0.50% during 2 to 30 weeks fermentation. Salinity was slightly increased at early stage and started to decrease on 4 weeks of fermentation, and then it did not change. The change of reducing sugar content was closely related to the trend of pH change with a very high correlation coefficient(r =0.912). Lactic acid, citric acid, malic acid, succinic acid and acetic acid were major organic acids contained in low-temperature and long-term fermented kimchi. Vitamin C content decreased at initial stage of fermentation and then slightly increased up to the maximum of 22.3 mg% on 8weeks of fermentation. In color measurement, L value continued to increase during the fermentation and reached at the highest of 55.45 on 22 weeks of fermentation, and a and b values of 3.62 and 4.54 also increased to 31.26 and 37.32 on 30 weeks of fermentation, respectively. Total microbial count increased slowly from beginning and was the highest on 4 weeks of fermentation, and then began to decrease slowly. Count of Lactobacillus spp. was highest after 6weeks, but count of Lactobacillus spp. was highest on 2 weeks of fermentation, and then both showed a slow decrease. Yeast count wasn't increased until 4 weeks of fermentation and then increased rapidly to get the highest on 10 weeks of fermentation.
The purpose of this study was to analyze the satisfaction level on hospital foods in elderly and middle aged patients. The subjects were selected among the patients treated in the Inha University hospital during July of 1999. One hundred thirty five elderly patients aged over sixty(68 men, 67 women) and sixty five patients aged in forties(35 men, 30 women) were surveyed through questionnaires in terms of satisfaction level on hospital foods and the food preferences. Satisfaction on general taste, saltiness, serving temperature, appearance, texture and variety of hospital foods was not significantly different according to age. However, elderly men showed significantly higher satisfaction level than elderly women in terms of general taste of hospital foods(p<0.01). The preferences of cooking method for meat, fish, vegetable and the preferred kinds of kimchi and milk & milk products were not significantly different between the two age groups. However, elderly women significantly preferred sauted meat to broiled meat compared to elderly men(p<0.05).
This study was designed to investigate nutrition intakes and its relation to the obesity and the prevalence of anemia in 252 children(136 boys, 116 girls) aged 2~6 years. The hematological parameters, daily nutrient intakes and height and weight were measured. Calorie intakes of 2 and 3year-old-children were over their RDA while those of 4-6 years were below the RDA. Intakes of protein, P, and vit B complex were far over the RDA in all ages of children. Fe and vit A intakes were insufficient in all ages except 3 years while Ca intakes were insufficient in all ages except 2 and 3 years. About 18.2% of the children were evaluated as obese. However, very few children were anemic by hematologic parameters. The mean Hb concentrations were 12.2mg/dl in boys and also in girls. The mean Hct was 36.2% in boys, 35.8% in girls. Serum Fe concentration was 100.1mg/dl in boys, 101.1mg/dl in girls. RBC count was significantly higher in boys while MCH was significantly higher in girls. Intakes of protein, P, Fe, vit B1, niacin, vit C were significantly higher in obese group compared to under weight group. There were significant positive correlations between protein intake and Hb, Hct, MCH, and MCHC. The correlation between Fe intake and Hb or Hct was not significant. In conclusion, it seems that the nutritional status of the most children was in very good condition. However, they needed to take more foods supplying Fe, Ca, and vit A.
This study was to investigate the effect of ultraviolet rays, soaking, boiling and baking to ergocalciferol (Vit.D2) and riboflavin(Vit.B2) contents of mushrooms, Lentinus edodes, Pleurotus ostreatus and Agaricus bisporus. The results were as follow: 1. Mushrooms were exposed to ultraviolet rays Lentinus edodes : 10J/cm2, Pleurotus ostratus : 2J/cm2 and Agaricus bisporus : 2J/cm2. 2. Before exposing to ultraviolet rays, the ergocalciferol contents of mushrooms were all 0μg/g dry base, but after exposing to it , those of Lentinus edodes, Pleurotus ostreatus and Agaricus bisporus were 222.50±5.30μg/g dry base, 150.90±6.60μg/g dry base and 23.98±1.20μg/g dry base, respectively 3. Before and after exposing to ultraviolet rays, the riboflavin contents of Lentinus edoes, Pleurotus ostreatus and Agaricus bisporus were 18.22±0.71μg/g dry base and 11.72±0.50μg/g dry base, 4.57±0.20μg/g dery base and 3.26±0.15μg/g dry base, and 37.42±1.20μg/g dry base and 27.33±2.10μg/g dry base, respectively. 4. The ergocalciferol contents of mushrooms according to boiling time were not significantly different but the riboflavin contents of them were decreased according to the increase of boiling time. 5. The ergocalciferol and riboflavin contents of mushrooms were decreased according to the increase of NaCl concentration and baking temperature. 6. The ergocalciferol content of Lentinus edodes after a short time soaking at 80℃ was higher than a long time soaking at 20℃, 40℃ and 60℃.
마늘이 김치의 숙성과 품질에 미치는 영향을 조사하고 아울러 cyclodextrin과 sorbitol의 마늘냄새 masking 효과를 실험하였다. 김치 숙성 초기의 산도는 마늘 첨가량이 많을수록 대조구 비해서 높았고 환원당 함량은 마늘 첨가량이 많을수록 높았으나 숙성말기에는 거의 비슷한 수준을 유지하였다. 미생물수의 경우 숙성초기에는 마늘 첨가에 의해 성장이 촉진되었으나 이후에 그 수준을 유지한 후에는 대조구에 비해서 오히려 억제되었다. 관능검사 결과는 온도에 관계없이 마늘을 첨가하지 않은 김치가 모든 관능적인 면에서 유의적으로 나쁘게 평가되었으며 마늘을 2~3% 첨가한 김치가 유의적으로 가장 좋게 평가되었다. Cyclodextrin 또는 sorbitol을 1%씩 첨가한 결과 마늘맛을 masking하는데는 효과가 없었고 관능적으로도 나쁘게 평가되었다.
This study was conducted to investigate the difference of general feature and ginsenoside content of 6 years old ginseng root among different grade of roots. Total weight of a 1st grade-6 years old ginseng root was 115.1g and weight, length, diameter and specific gravity of main root were 64.68g, 8.39cm, 3.31cm and 0.96, respectively. Main root of 1st grade ginseng root was larger in size and specific gravity and more heavy than that of End or 3rd grade of the roots. Though crude saponin contents were not so different among the different grade of roots, but ginsenoside Rb1, Rg1 and Re content were higher in 1st grade of root than that of 2nd or 3rd grade of root. Those ginsenosides were located mainly in periderm and cortex.
Traditional Korean beverage can be divided into Jang, Gahl Soo, Mi Su, Soo Jung Gwa, Shick Hae, Tahng, Hwa Chae, Sook Su, and Tea according to ingredients and how it is proccessed. The purpose of this study was to investigate the Korean beverage percetpion and to analyze the factors (sociodemographic factors and life-style related factors) which influence percetpion of Korean beverage. Questionnaries were hand delivered to 2,200 subject residing in Seoul and 1,884 questionnaris were collected : resulting in 84% response rate. Statistical data analysis was completed using SAS Package program for the analysis of covariance(ANOCOVA).The results are as follows: (a) Survey on Korean beverage perception showed that the recognition rates of ShickHae(58.4%), Cition Tea(53.5%), Sung Nung(48.7%) and Soo Jung Gwa(40.8%) were high, whereas those for Tahng, Jang, and Gahl Soo were low.(b) About 40% of respondents performing 4 kinds of Korean traditional ceremony a year The percentage that reported they purchased Korean beverages was 44.0%, higher than the 38.5% that answered they made Korean beverage at home.(c) In analyzing the factors which influence beverage perception, the sociodemographic factors variously influenced perception rate depending on beverage. Age and sex had influenced on perception rate of Shick Hae and Donggulre Tea. Income level influenced on the perception rate of Sung Nung and Citron Tea. Sociodemograhpic factors like senior over 50s, female and extended family size had positive influence on the perception rate.
The purpose of this study was to compare nutritional intakes of college students in Seoul and Yanbian by ethnic : Korean, Korean-Chinese, Chinese. The questionnaire were applied to individual interviewing method. Statisticai data analysis was completed by SAS 8.0 package program for t-test, ANOVA and multiple comparison. The results of this study were as follows. Average energy intake per day was high in Korean-Chinese. Nutrient Adequacy Ratio(NAR) was highest in iron and lowest in zinc. Mean Adequacy Ratio(MAR) score was 0.68~0.85 for each group. The indexes of nutritional quality(INQ) were over 1.0 for most nutrients except 0.41 of zinc and 0.76 of calcium. Average energy intake ranked high in Korean-Chinese, Korean and Chinese.
The contents of total flavonoids, total antioxidant status and superoxide scavenger activity of edible plants were measured. Among twenty one samples of leafy vegetables and teas, mugwort (Artemesia capillaris) and green teas gave high total flavonoids contents, 48.2 mg/g sample and 44.7 mg/g sample, respectively. The highest concentration of total flavonoids among eighty nine samples analyzed was 52.1 mg/g sample from propolis. When samples were tested for total antioxidant status, a kind of groundsel showed the highest Total Antioxidant Status(TAS) value, 13.4 mM among leafy vegetables and teas and green tea gave high TAS value, 11.84 mM. On the other hand, purslane gave the lowest TAS value, 0.01 mM. The superoxide scavenge activity was measured from the extracts of all edible plants. The superoxide scavenge activity of polygonatum(81.1%) and chrysantemum (78.5%) were the highest among leafy vegetables, teas and medicinalplants. On the other hand, ginseng, poria, cassiae semen and dioscoreae rhizoma showed no superoxide scavenge activities.
Differences in dietary intake of Korean Americans (KA) by the length of residence in the U.S. were studied in relation to health and disease patterns in Michigan. Of 1860 questionnaires mailed, 637 (34.3%) responded with demographics, anthropometrics, self-reported disease patterns, lifestyle, and dietary patterns (93-item FFQ developed for KA). Complete responses were available for 498 people (263 men,253 women, aged 30-87 yr), who were then divided into three groups based on the number of years lived in the U.S.: 15y, 16-25y, 26y. Age-adjusted weight, height, BMI, and waist to hip ratio were within the normal ranges and did not differ among the three groups. Chronic diseases frequently reported in men and women (age-adjusted) included hypertension (14.4%, 14.1%), digestive diseases (5.4%, 8.5%), diabetes (3.6%,4.9%), and arthritis(3.3%, 12.5%), respectively. The length of residence in the U.S. was inversely associated with the age-adjusted prevalence of digestive diseases (12.4%, 6.5%, 0.4% in men, 13.0%, 11.7%, 0% in women). The length of residence was positively associated with health consciousness, receiving regular health care, taking supplements regularly, and exercising, while inversely related to smoking. The majority favored American foods for breakfast and Korean foods for dinner. Foods frequently consumed included cooked rice (w/other grains). kimchi, coffee (w/cream and sugar),bread (white and dark), citrus juice, milk (low fat and skim), lettuce and cucumber, apple, seaweed, and soda. Intake frequency of the Korean starch food group was inversely associated with the length of residence for both men and women (p<0.001), but not with the American starch food group. Fat intake did not differ by the length of residence in the U.S. The dietary changes were associated with the length of residence and chronic disease patterns for the first generation of KA, which should be further examined 'for the subsequent generation of KA.