• Title/Summary/Keyword: dietary variations

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Quality Characteristics of Makgeolli added with Carrot Powder (당근 분말을 첨가한 막걸리의 품질 특성)

  • Park, Jong-Hyun;Lee, Seung-Joo;Park, Jong-Hee
    • Journal of the East Asian Society of Dietary Life
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    • v.27 no.5
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    • pp.569-575
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    • 2017
  • The purpose of this study was to investigate the physicochemical and sensory characteristics and overall preference for makgeolli after conducting fermentation using carrots with various levels of beta carotene and functional materials. The beta - carotene content was highest in 16% carrot powder, and steadily increased as the amount of carrot powder increased. Alcohol content increased with increasing amount of carrot powder. Alcohol content which greatly influences the quality of traditional wine, changes depending on the water soluble solid content and free sugar content during the manufacture of traditional wine. Sensory tests showed that the highest results were in the 12% carrot powder added group. As a result, the content of beta carotene increased with the addition of carrot powder, but the fermentation time was delayed and the sugar content was decreased because of variations in sugar content and color. Therefore, the optimal addition of carrot powder was 12%.

A Study of Learning and Performance Goal Orientation in Restaurant Servers' Up-Selling and Its Impact on Sales Behaviors and Sales Performance (레스토랑 직원의 Up-Selling에 대한 목적 지향성이 판매 행동과 판매 성과에 미치는 영향)

  • Kim, Young-Gab;Hong, Jong-Sook
    • Journal of the East Asian Society of Dietary Life
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    • v.20 no.5
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    • pp.776-784
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    • 2010
  • This study investigated causal relationships between goal orientation, sales and performance towards increasing the effectiveness of up-selling in internal promotion methods in family restaurants and provided implications about the hiring and training of sales people. The subjects were 232 sales people in family restaurants. The data were collected by self-administered questionnaires and analyzed by exploratory factor analysis, reliability analysis, comparative analysis of the average, and regression analysis. Results, showed that variations in goal orientation, sales, and performance depended on the age and experience of salespeople and that goal orientation makes adaptive selling more effective. It turned out that effort selling affects up-selling result than adaptive selling. Long-term workers were better than short-term workers in goal orientation, selling, and up-selling results, so human resource management needs to implement a long-term plan to enhance these effects. And, because effort selling is more effective than adaptive selling in up-selling results in family restaurants, effort selling requires training.

Quality Characteristics of Pan Bread with Added Salt and Fat Content after Microwave Irradiation (Microwave 조사 시 소금 및 유지의 첨가량이 식빵의 품질 특성에 미치는 영향)

  • Park, Sang-Jun;An, Hye-Lyung;Lee, Kwang-Suck
    • Journal of the East Asian Society of Dietary Life
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    • v.20 no.5
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    • pp.687-696
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    • 2010
  • This study focused on microwave irradiation of dough, raising its temperature to monitor potential variations of dough properties and bread quality, and examined the optimum mixture ratio towards streamlining the bread-making process. According to comparison and analysis on dough properties and bread quality depending on mixture materials, it was found that Salt 2 had the highest dough temperature of all, and Salt 1 had the highest fermentation rate and specific volume but the lowest hardness (i.e. highest softness). Results of sensory evaluation, were that Salt 1.5 scored highest points in sweet taste, aftertaste, and overall acceptance, but there were significant differences among bread samples. Likewise, it was found that Fat 6 had the highest dough temperature, fermentation rate and specific volume of all. Texture analysis, showed that Fat 0 had the highest hardness of all. According to sensory characteristics, Fat 3 scored the highest points in overall acceptance. Based on these results, the optimum mixture ratio of salt and fat for microwave-irradiated bread was found to be 1.5% salt and 3% fat.

Morphometric relations and diet compositions of Nile tilapia Oreochromis niloticus (Linn. 1758) in Lake Tana Gorgora gulf, Ethiopia

  • Flipos Engdaw
    • Fisheries and Aquatic Sciences
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    • v.26 no.3
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    • pp.169-180
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    • 2023
  • Oreochromis niloticus is the most ecologically and economically important fish in tropical and sub-tropical aquatic systems. Recently, due to sever anthropogenic stressors, hydrological variations and infestations of invasive alien species in Ethiopian water bodies, fish community structure and ecosystem of Lake Tana is changing alarmingly. So far, there is paucity of information on the morphometric relations and diet composition of O. niloticus in Lake Tana, gulf of Gorgora. A total of 309 fish samples were collected and their total length (TL), standard length (SL) and total weight (TW) were measured to determine morphometric relations; and gut contents were examined to identify most important food item in the diet of the fish. Results indicated that, the relation between TL and SL was significant (p < 0.001) and linear (SL = 0.942TL-2.41) while the relation between TL and TW was curvilinear (TW = 0.014 TL2.8) indicating allometric growth. Among the total guts scrutinized, 53 (17.3%) of them were empty and the remaining 256 (82.7%) were non-empty. Phytoplankton constituted the largest bulk and occurred in 77% of the guts examined and volumetrically accounted 44.3%. Detritus and zooplankton had an intermediate importance by occurring 60.2% and 63.3% of all guts scrutinized and constituted about 25.6% and 15.5% of the total volume respectively. Contributions of macrophytes, insects, nematodes and unidentified food items were relatively low in their importance. Ontogenetic dietary shift was observed in the diet indicating an omnivorous feeding habit of the adult fish.

The food Choices and Dietary Preferences of College Women (여대생(女大生)의 음식(飮食) 선택(選擇) 및 기호(嗜好) 성향(性向))

  • Kim, Young-Ja
    • Journal of Nutrition and Health
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    • v.9 no.3
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    • pp.35-45
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    • 1976
  • To investigate the food choices and Dietary Preferences of College Women the number of dishes sold and the sales of the midmeal at the Student Cafeteria, Ewha Womans University were recorded for the fiscal year of 1974; and the observations were made on two consecutive days (June 3rd and 4th, 1974)on what a person has chosen which and how many dishes. The relationship between the number of the consecutive days and the number of foods chosen were treated as Chi square analysis. The results of the food choices and dietary preferences of College Women were as follows: 1. Breads and rice cakes, vegetable dishes, milk and milk products, rice dishes, soups, meat, fish, poultry and eggs, Kimchis and one dish meal were chosen highly; and beverages, stews, and soybeans and soybean products were chosen negligibly. 2. One dish meals, vegetable dishes, meat, fish, poultry and eggs, milk and milk products showed the highest sales volume during the year; rice dishes, breads and rice cakes were the second highest in sales amount; fried foods, snacks and Kimchis showed the range of $3{\sim}6%$ of the total sales; and the beverages, stews, soybean and soybean products were the lowest in sales amount. 3. Seasonal differences were noticed on some dishes. Breads add rice cakes, milk and milk products showed the high selections from March to November and the low, during December to February. Stews, Kimchis, beverages were kept low except sudden rise on February. One dish meal and rice dishes showed almost same level during the year but on February the slight increase were noticed; even level were kept on meat group except the increase to $13{\sim}16%$ on July and December. Fried foods were kept on similar level during the year except the increase on June. Snacks and fruits showed low selections on March, April, November and December and higher at summer. Vegetables, soups, soybean and soybean products showed no different fluctuations in selections during the year. 4. Rolls, salads, milk, hamburgers, fried vegetables, rice with mired vegetables(Bi-bim-bab), and Nang-myun were the single dishes chosen most frequently. 5. There is significant relationship at 0.05 level between the consecutive days and the number of foods chosen. It is concluded that about 50% of the population has taken one item of dishes. The popular combinations were one dish meal and soup or Kimchi; noodles and salads or fried vegetables. It is suggested to set up choice menus with the daily variations, cyclical variations and with the invariable ones; and to recommend one dish meal, breads, partial meals for school lunch; and to study to improve one dish meal, vegetable dishes and fried foods, which are new and inexpensive products. It is also suggested that the feeding of the college students should have to lead the people to the goal that the nutrition education is desired.

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Survey of Preferences and Choice in Korean Cuisine of Foreigners who are Vegetarian (한국거주 외국인 채식주의자의 한국음식 선호도 및 한식선택속성)

  • Lee, Si Eun;Seo, Mo Ran;Jeong, Hee Sun
    • Korean journal of food and cookery science
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    • v.30 no.5
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    • pp.579-587
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    • 2014
  • Korean food is being recognized for its excellence. This paper attempts to provide material for the popularization of Korean cuisine with respect to foreign nationals living in Korea who are vegetarian by studying their Korean cuisine knowledge and preferences. The results of an Importance-Performance Analysis showed that though the importance values of traditional spice use such as garlic and the consideration of ingredient price were high, their performance values were low. Thus, these were areas identified as needing major improvement. Repeated measured data analysis was performed to determine variations in the perception of major factors for the development of Korean cuisine. The results indicated that simplification of seasoning was the most important factor followed by diversification of food ingredients, resale of vegetables in small quantities, ease of obtaining Korean cuisine recipes, and popularization of herbal and temple food, in that order. The least important factor in developing Korean cuisine was determined to be the reduction in levels of salt. Conjoint analysis was performed on the choices affection the selection of Korean cuisine, and price was found to be the most important factor. It was also determined that the effectiveness in the combination of fusion style, health oriented, concurrently served, medium to low price Korean cuisine was highest in preference. The next highest preferred combination was traditional style, health oriented, concurrently served, medium to low price Korean cuisine. The most significant factor to keep in mind in developing Korean dishes for foreign vegetarians was determined to be price. Furthermore, it was important to not simply reduce caloric intake but to use healthy ingredients and cooking methods.

The Utilization of Ice at Home in Seoul and Kyunggi-Do Area (서울 및 경기지역 가정에서의 얼음 사용 실태에 관한 연구)

  • 장정옥;이영미
    • Journal of the East Asian Society of Dietary Life
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    • v.7 no.3
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    • pp.355-363
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    • 1997
  • This study was designed to investigate development points for automatic ice maker which met consumer's demand. Basic data about using ices in Korean's dietary life, were collected from Seoul and Kyunggi-do residences and analyzed by SPSS program. The results were as follows; 93.7% of respondents had 3 major domestic brands' refrigerator and 41.4% of them had medium-large capacity(400-519L). 65% of respondents had a refrigerator that was purchased less than five years. 15.5% of respondents had one more refrigerator. Among of them, major refrigerator was located in kitchen(67.7%) and minor was in kitchen(29.8%) and in veranda or multi-purpose room(26.3%). 66.2% of respondents always prepared ices in ice container, and 85% of them used ice only in summer. Boiling water with barley or corn was used as drinking water (45.6%) and boiled or purified tap water was used to make ice (38.6%) commonly. In cooking, ice was used especially in cold soup with cucumber and seaweed(89.9%), ice-tea or ice-coffee(81%), and fruit punch(64%). The next commonly using ice was adding in alcoholic beverage such as whiskey(57.4%), in Koreans traditional drink(Misugaru) (45.2%) and juice. The purpose of using ice was to cool in soft drink (58.6%), to cool in cooking food(19.9%), to eat ice itself(14.0%), and to enjoy more fantastic taste and mood(3.8%). In whiskey, the purpose of using ices was to control alcoholic content (52.9%). There was no significant difference between sex in the purpose of using ice, but there was significant differences between age(p<0.05). Seasonal variations in using ice, there were significant differences according to sex, age, roles in family, amount of preparation of ice, socio-economic level and brand and capacity of refrigerator in respondent's home.

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Measures to Improve Culinary Trends in Korean Court Food Based on the Perception of Korean Royal Court Cuisine (궁중음식 인식성향에 따른 궁중음식 메뉴개발 방향성에 대한 조사)

  • Koo, Ha Yeon;Choung, Seo Yeong;Jeong, Hee Sun
    • Korean journal of food and cookery science
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    • v.32 no.3
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    • pp.370-381
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    • 2016
  • Purpose: This study assesses Korean royal court cuisine as perceived by culinary professionals and students for the development of Korean dining. Methods: It was observed in a survey that Korean royal cuisine could be grouped into four classes represented by the following factors: popularity, standardization, tradition, and haute-cuisine. Results: From the analysis of the survey results, it was determined that the people surveyed could be grouped into the following three categories: those who prefer standardization/pursuit of haute-cuisine, traditionalists/popularizers, and those who are indifferent. The survey also assessed whether the ten most popular Korean dishes served to foreigners had variations in royal court cuisine and which food ingredients and combinations of dishes would be the most appropriate. It was determined that control over the sweetness when cooking Bulgogi was needed. For food usually consumed for invigoration, especially for the broth of soup dishes in summer, women preferred clear meat broth with soup than men. When preparing Japchae, it was found that control over the ratio between glass noodles and vegetables and control over the sweetness were needed with respect to the main dishes. Conclusion: The indicator 'education on Korean royal court cuisine culture' showed relatively low satisfaction compared to its high importance, implying that further improvement in these development measures is especially required.

The effect of dietary ions difference on drinking and eating patterns in dairy goats under high ambient temperature

  • Nguyen, Thiet;Chanpongsang, Somchai;Chaiyabutr, Narongsak;Thammacharoen, Sumpun
    • Asian-Australasian Journal of Animal Sciences
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    • v.32 no.4
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    • pp.599-606
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    • 2019
  • Objective: The present study was carried out to evaluate the effect of high dietary cation and anion difference (DCAD) rations on diurnal variations in eating and meal patterns, water intake and urination patterns in dairy goats fed under high ambient temperature (HTa). Methods: Ten crossbred dairy goats during peri-parturition period were selected and divided into two groups of five animals each. Experimental diets were control DCAD (control, 22.8 mEq/100 g dry matter [DM]) and high DCAD (DCAD, 39.1 mEq/100 g DM). The composition of two diets consisted of 44% corn silage and 56% concentrate. From the 2nd week to 8th week postpartum, goats were fed ad libitum twice daily either with the control or DCAD total mix ration with free access to water. The spontaneous eating and drinking patterns were determined. Results: The environmental conditions in the present experiment indicated that goats were fed under HTa conditions (average peak THI = 85.2) and were in heat stress. In addition to the typical HTa induced tachypnoea in both groups, the respiratory rate in the DCAD group was significantly higher than the control group (p<0.05). Although the goats from both groups showed comparable level of eating, drinking and urination during experiment, the meal pattern and water intake were different. High DCAD apparently increased eating and meal patterns compared with the control. At week 8 postpartum, goats from high DCAD group had significant (p<0.05) bigger meal size and longer meal duration. Moreover, high DCAD appeared to increase night-time water intake (p<0.05). Conclusion: Both meal pattern and night-time drinking effects of DCAD suggested that feeding with high DCAD ration may alleviate the effect of heat stress in dairy goat fed under HTa conditions.

Obesity: Interactions of Genome and Nutrients Intake

  • Doo, Miae;Kim, Yangha
    • Preventive Nutrition and Food Science
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    • v.20 no.1
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    • pp.1-7
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    • 2015
  • Obesity has become one of the major public health problems all over the world. Recent novel eras of research are opening for the effective management of obesity though gene and nutrient intake interactions because the causes of obesity are complex and multifactorial. Through GWASs (genome-wide association studies) and genetic variations (SNPs, single nucleotide polymorphisms), as the genetic factors are likely to determine individuals' obesity predisposition. The understanding of genetic approaches in nutritional sciences is referred as "nutrigenomics". Nutrigenomics explores the interaction between genetic factors and dietary nutrient intake on various disease phenotypes such as obesity. Therefore, this novel approach might suggest a solution for the effective prevention and treatment of obesity through individual genetic profiles and help improve health conditions.