• 한국가정과교육학회지
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• 제27권1호
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• pp.31-50
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• 2015

본 연구의 목적은 2009 개정 가정교과서 '식생활 단원'을 중심으로 타 교과의 교과서와 중복되는 내용을 분석하는 데 있다. 가정교과서의 '식생활 단원'과 타 교과의 교과서 중복 내용 분석을 위하여 과학교과서 I II III, 도덕교과서 I II, 체육교과서, 보건교과서를 대상으로 분석을 실시하였다. 본 연구의 분석결과는 다음과 같다. 가정교과의 '식생활 단원'과 중복 내용이 많은 교과는 과학과 보건, 그 다음 체육, 도덕 교과 순이었다. 가정교과는 '청소년의 식생활 문제'와 '균형 잡힌 식생활', '녹색 식생활', '한국형 식생활'에 초점이 맞춰져 청소년들이 당면한 식생활 문제에 대한 이론적 기초와 함께 문제를 해결할 수 있는 방안까지 제시되어 있다. 과학교과서는 '영양소의 역할', '소화 흡수' 등에 관한 과학적 이론과 원리를 중심으로 구성되어 있으며, 체육과 보건교과는 '건강'에 초점을 맞추고 있었다. 도덕교과는 식생활 교육과 관련된 부분에서 '한국인의 정체성'과 '환경'을 중요시 하고 있었다. 가정교과는 식생활에 대한 전반적인 내용을 청소년기의 특성에 맞추어 다루고 있었지만, 타 교과에서는 특정 영역의 내용만 제시하거나 예시적 성격으로 다루고 있었다. 이에 중학교에서의 식생활 교육은 전반적인 내용을 다루고 있는 가정교과를 중심으로 각 교과와의 중복 내용을 고려하고, 개별적 특성을 반영하여 실시한다면 효과적인 교육이 될 것으로 사료된다.

• 한국가정과교육학회지
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• 제34권3호
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• pp.149-167
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• 2022

본 연구의 목적은 중학교 기술·가정 교과서의 식생활 단원에서 지속가능발전목표(SDGs)와 연계한 학습 요소와 수업 주제를 선정하고, 교수·학습 과정안 및 학습 자료를 개발하여 타당성 및 현장 적합성을 검증받는 데 있다. 본 연구는 분석, 설계, 개발, 평가 단계를 거쳐 실행되었으며 결과는 다음과 같다. 첫째, 분석 단계에서는 17개 지속가능목표, 169개 세부목표 중 식생활과 관련한 세부목표를 추출하고, 2015 개정 중학교 기술·가정 교과서 5종의 식생활 단원 내용을 분석하여 본 연구에서 개발할 교수·학습 과정안에서 다룰 수 있는 학습 요소를 추출하였다. 둘째, 설계 단계에서는 교과서 분석 내용을 바탕으로 '청소년의 바람직한 식생활', '식품의 생산', '식품의 유통', '식품의 소비 및 폐기'로 수업 주제를 선정하였다. 효과적인 수업이 이루어질 수 있도록 전체 수업의 총괄목표를 설정하고 개발될 식생활 영역 차시별 수업의 학습 목표, 학습 내용, 학습 방법과 함께 관련된 지속가능발전목표(SDGs)와 연계하여 수업을 설계하였다. 셋째, 개발 단계에서는 총 9개 주제, 11차시의 교수·학습 과정안과 전문가에게 검증받을 타당도 평가지를 개발하였다. 넷째, 평가 단계에서는 가정과 교사 5인의 전문가를 통해 교수·학습 과정안의 현장 적합성과 타당도를 검증받았으며, 검토의견을 토대로 총 9개 주제, 13차시의 교수·학습 과정안으로 수정·보완하여 완성하였다.

• Animal Bioscience
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• 제35권2호
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• pp.236-246
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• 2022

Objective: The objective of this study was to investigate the effect of dietary pumpkin (Cucurbita moschata) seed meal (PSM) on laying hens' performance, quality, fatty acids, cholesterol, antioxidant compounds and shelf life of eggs. Methods: Eighty Tetra SL laying hens, 50-week-old, were randomly divided into two equal groups, having 10 replicates with 4 birds in each. The control (CON) treatment was fed with basal diet, while experimental treatment was fed a diet with 9% PSM, for a 6 week period. Results: Dietary PSM significantly decreased average daily feed intake (p<0.05), with no significant effect on other performance parameters. The PSM, enriched the eggs with polyunsaturated fatty acids, especially α linolenic acid (0.33 vs 0.21 g/100 g) and linoleic acid (20.65 vs 18.37 g/100 g), whereas it reduced the amount of arachidonic acid with 3.91% and n-6/n-3 ratio in PSM eggs compared with CON. The inclusion of 9% PSM significantly (p<0.05) diminished the cholesterol concentration in yolk with 11.31% and in egg with 10.38%, in respect to the CON samples. The significantly (p<0.05) higher concentration of polyphenols and antioxidant compounds, determined in PSM eggs, proved to be effective on shelf life of eggs preserved at refrigerator (5℃) and room temperature (21℃) for 28 days, by delaying the lipid oxidation and protein denaturation. This effect was reflected in significantly (p<0.05) higher Haugh unit in eggs stored 28 days at 21℃ and lower albumen pH values for the overall storage time, both at 5℃ and 21℃, proving the antioxidant effect of pumpkin. Conclusion: Dietary PSM supplementation was significantly effective on average daily feed intake and egg quality by increasing some fatty acids while lowering the cholesterol concentration. Also, PSM proved to be effective improving shelf life of eggs for 28 days storage time.

• Nutrition Research and Practice
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• 제16권sup1호
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• pp.57-69
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• 2022

BACKGROUND/OBJECTIVES: Vitamin D is produced in the skin during sun exposure and is also ingested from foods. The role of vitamin D needs to be considered in the prevention and management of various diseases. Moreover, since the majority of Koreans spend their days indoors, becoming susceptible to the risk of vitamin D deficiency. The current study aims to prepare a basis for determining dietary reference intake of vitamin D in Korea, by reviewing the evidence against various diseases and risks. MATERIALS/METHODS: Literature published in Korea and other countries between 2014 and 2018 was prioritized based on their study design and other criteria, and evaluated using the RoB 2.0 assessment form and United States Department of Agriculture Nutrition Evidence Library Conclusion Statement Evaluation Criteria. RESULTS: Of the 1,709 studies, 128 studies were included in the final systematic analysis after screening. To set the dietary reference intakes of vitamin D based on the selected articles, blood 25(OH)D levels and indicators of bone health were used collectively. Blood vitamin D levels and ultraviolet (UV) exposure time derived from the Korean National Health and Nutrition Examination Survey were analyzed to establish the dietary reference intakes of vitamin D for each stage of the life cycle. The adequate intake levels of vitamin D, according to age and gender, were determined to be in the range of 5-15 ㎍/day, and the tolerable upper intake level was established at 25-100 ㎍/day. CONCLUSIONS: The most important variable for vitamin D nutrition is lifestyle. A balanced diet comprising foods with high contents of vitamin D is important, as is vitamin D synthesis after UV exposure. The adequate intake level of vitamin D mentioned in the 2015 Dietary Reference Intakes for Korean (KDRI) remained unchanged in the 2020 KDRI for the management of vitamin D nutrition in Koreans.

• 한국가정과교육학회지
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• 제34권2호
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• pp.129-152
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• 2022

본 연구의 목적은 청소년의 임파워먼트 향상을 위한 수업 전략을 활용하여 중학교 가정교과의 자유학년제 지속가능한 식생활교육 프로그램을 개발하고 프로그램의 효과를 검증하고 평가하는 것이다. 연구 목적을 달성하기 위해 ADDIE 교수설계 모형에 따라 프로그램을 개발하고 평가하였다. 2015 개정 중학교 기술·가정과교육과정과 SDGs에서 식생활 영역과 관련된 내용을 추출하여 이들의 관련성을 분석하여 식생활교육의 내용을 도출하였다. 분석 결과를 바탕으로 하여 개발된 프로그램은 '더불어 함께하는 식생활'이며, 5가지 학습주제 '지구촌에서 함께 살기', '건강한 식생활 유지하기', '함께하는 식생활 문화 창조하기', '자연, 사람과 더불어 살기', '안전한 식생활 유지하기'로 구성되었다. 임파워먼트 향상을 위한 전략으로 가치 판단, 결과에 대한 예측, 책임있는 행동 선택, 의사결정의 4가지 상황을 제시하였다. 개발된 프로그램을 전문가의 검토를 받아 경기도 소재 중학교 3학년 학생을 대상으로 주당 1시간씩 17주에 걸쳐 17차시의 수업에 적용하였다. 수업 후 개인 내적 임파워먼트와 정치·사회 임파워먼트는 사전과 사후에 유의한 차이를 보여 본 프로그램이 임파워먼트 향상에 효과가 있는 것으로 나타났다. 하지만 대인 관계 임파워먼트는 사전과 사후에 유의한 차이가 없었으므로 프로그램을 실행할 때 토의·토론과 협동학습을 원활하게 진행하기 위한 전략을 활용할 필요가 있는 것으로 나타났다. 수업에 참여한 학생들은 프로그램에 대해 전체적으로 긍정적으로 평가하였으며, 식생활문제 해결을 통해 사회를 변화시킬 수 있다는 생각을 갖게 하는데 도움이 된 것으로 평가하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제28권6호
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• pp.840-846
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• 2015

The objective of this study was to investigate the effects of dietary corticosterone on egg quality. For 2 weeks hens received either control or experimental diet containing corticosterone at 30 mg/kg diet. Feed intake and egg production were monitored daily, and body weight measured weekly. Egg weights and egg quality were measured daily. Corticosterone treatment resulted in a remarkable increase in feed intake and sharp decrease in egg production compared with control (p<0.05) whereas body weight remained unchanged. Decreased albumen height, but no changes in egg weight, led to decreased Haugh unit (p<0.05). Corticosterone caused elevated eggshell thickness (p<0.05) without altering weight and strength, suggesting possible changes in shell structure. Yolk color and redness were increased by corticosterone (p<0.05) but lightness and yellowness were either not changed or inconsistent over the time period of measurements. Increased concentrations in plasma were also found for corticosterone, glucose, cholesterol, creatinine, uric acid, albumin, aspartate aminotransferase, creatine kinase, lactate dehydrogenase, total protein, and amylase (p<0.05), suggesting that corticosterone increased protein breakdown, renal dysfunctions and pancreatitis. Together, the current results imply that dietary corticosterone affects egg quality such as yolk colors and shell thickness, in addition to its effects on feed intake and egg production.

• 동아시아식생활학회지
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• 제5권1호
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• pp.93-99
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• 1995

For the improvement of the L-lysine productivity of Brevibacterium flavum and Corynebacterium glutamicum, fusants were induced by interspecific protoplast fusion of Bacillus subtilis with C. glutamicum and B. flavum. The following results were obtained through protoplast formation of strains condition of protoplast fusion, characteristics of the fusants, and the productivity of lysine form starch. B. flavum BF-5 and C. glutamicum protoplasts were made by the treatment of 0.3unit/$m\ell$ of penicillin G at the early stationary growth phase for 2 hours followed by incubation with 10mg/$m\ell$ of lysozyme at 37$^{\circ}C$ for 120 min. When a mixture of the protoplast was treated with 30% PEG(M.W.6,000) solution containing 50mM CaCl2 at optimal conditions, the intergeneric fusion frequency between protoplasts of C. glutamicum CG-2 and B. subtilis BD 224 was 7.1${\times}$105. The genetic properties on the L-lysine producing fusants were compared with those of parental strains. As a results, the intergeneric fusants were completed in each auxotrophic requirement, resistances for S-(2-amino-ethyl)-L-cysteine and kanamycine were confirmed. And one of fusants selected, FBB-41 were found to be genetically stable fusants. The aspartokinase activity of FBB-41 strain increased than that of the parent strain.

• Journal of Nutrition and Health
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• 제20권1호
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• pp.54-64
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• 1987

The purpose of this study is to computerize all the necessary information on the daily food value and nutritional status for individuals and groups. In this research, a FOCUS-16jXT (16 bit personal computer ) compatible with IBM-PCjXT was used, and the database files and programs were created by using the dBASEIII package. The food life evaluation system consists of 3 subsystems of Reference, Nutrition Status Assessment and Food Source. The findings are summerized a8 follows: 1. Reference: This subsystem enables users to proceed to the next step, if necessary, by describing each subsystem. 2. Nutrition Status Assessment. 1) Food Habit Assessment: This subsystem determines whether the user has a good food habit or not, based on the answers for ten questions about daily food life. 2) Obesity Assessment: This subsystem calculates Broca index, which is used as a indicator of obesity. 3) Nutrient Intakes: When personal data such as age, sex, weight, height and food consumptions are input, it is possible to calculate the followings. i) Comparison between the amounts intaked and the recommended dietary daily allowances of various nutrients ii) Nutrient intakes from each food group and their composition rates for the nutrients iii) Nutrient intakes per unit body surface area iv) Composition of lipid intake 3. Food Sources: The appropriate food sources for the lacking nutrients will be recommended to the subjects.

• 동아시아식생활학회지
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• 제27권1호
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• pp.78-87
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• 2017

The objective of this study was to investigate the effects of various washing waters on the quality and safety characteristics of eggs during storage. Eggs were washed with tap water, 100 ppm of sodium hypochlorite, or 30 ppm of slightly acidic electrolyzed water and stored at $10^{\circ}C$ and $20^{\circ}C$. Effects of various washing waters on reduction of Salmonella Enteritidis and aerobic plate counts and survival of S. Enteritidis on egg shells were also analyzed at $10^{\circ}C$ and $20^{\circ}C$ for 25 days. As an index of quality, haugh unit, weight reduction, and pHs of egg white and egg yolk were measured. Reduction percentages of haugh unit and weight were higher at $20^{\circ}C$ than at $10^{\circ}C$. Egg qualities were less affected by tap water, slightly acidic electrolyzed water, and sodium hypochlorite, regardless of storage temperature. The greatest reductions in aerobic plate counts and S. Enteritidis were observed with slightly acidic electrolyzed water. The level of S. Enteritidis on egg shells gradually decreased during 20 days of storage at both $10^{\circ}C$ and $20^{\circ}C$, whereas S. Enteritidis survived longer at $20^{\circ}C$ than at $10^{\circ}C$. S. Enteritidis was not detected in eggs at $10^{\circ}C$, 2.13 log CFU/g of S. Enteritidis was detected in eggs washed with sodium hypochlorite after 20 days of storage at $20^{\circ}C$, indicating that S. Enteritidis penetrated into the egg shell during storage at $20^{\circ}C$. In conclusion, slightly acidic electrolyzed water increased microbial reduction and least affected quality of washed eggs. Thus, slightly acidic electrolyzed water can be recommended for washing of graded eggs, at retail markets.

• 인간식물환경학회지
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• 제24권3호
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• pp.301-309
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• 2021

Background and objective: The purpose of this study is to analyze the case of healing experience for lifestyle and environmental diseases through life and activities in the forest from the perspecitive of critical realism, and how the causal power and mechanism of the healing experience relate to forest healing factors and programs. Methods: 93 video data of people who started living in the forest for disease treatment were analyzed using a qualitative content analysis method from the perspective of critical realism. Categories for analysis include general categories (age, duration, occupation, disease name), forest therapy categories (climate therapy, plant therapy, water therapy, diet therapy, kinesiotherapy, psychotherapy), and other categories (ecology, learning and management, life tools), etc., and the unit of analysis is the context unit. Results: 1) The diseases that motivated life in the forest were digestive system diseases, lung diseases, cardiovascular diseases, endocrine system diseases, and various lifestyle-related diseases and environmental diseases in similar proportions. This indicates that forest life does not have specificity to respond to specific diseases, but provides treatment and recovery for all lifestyle and environmental diseases. 2) Among the forest therapies, climate therapy and plant therapy are related to the climatic and residential environment in the forest where 'natural persons' live. And others such as water therapy, diet therapy, kinesiotherapy, psychotherapy indicate the change from the lifestyle that caused the disease to the lifestyle for treatment and recovery. Conclusion: Life and activities in the forest provide an environment for treatment and recovery in which the healing principles such as aromatherapy, nutritional and dietary therapy, kinesiotherapy, and emotional psychotherapy are integrated in the 'real world'.