• Nutrition Research and Practice
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• 제14권2호
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• pp.143-151
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• 2020

BACKGROUND/OBJECTIVES: The nutrition of the elderly depends on various factors. Oral health, especially oral dryness, can be an important risk factor. In this study, we attempted to determine whether dry mouth is associated with compromised nutrient intakes. SUBJECTS/METHODS: A total of 120 participants aged 65-86 yrs (mean age: 69 ± 1 y) were included in this study. Demographic and health-related characteristics, living status, meals, number of medications, medical conditions, chewing ability, and quality of life, the Oral Health Impact Profile (the OHIP-14) were assessed. We performed one day 24-hr recall assessment for nutrient analyses. The differences of the means between the dry-mouth and non-dry-mouth groups were analyzed. Elderly subjects with xerostomia-induced dry mouth were classified as those who reported at least one dryness symptom on a questionnaire. RESULTS: A significant difference in population distribution was observed among the elderly who took medications for hypertension, diabetes and osteoporosis and was significantly higher in the dry-mouth group (70.2%) than in the non-dry-mouth group (44.4%) (P = 0.005). Compared with the non-dry-mouth group (50.8%), a significantly higher proportion (73.7%) of participants in the dry-mouth group took multiple medicines (≥ 4 medications) (P = 0.019). The intakes of vegetable fat, vitamin E, folate and water in the dry-mouth group were lower than in the non-dry-mouth group. The intakes of fluoride and ω-3 fatty acids were significantly lower in the dry-mouth group than in the non-dry-mouth group. CONCLUSION: The participants in the dry-mouth group exhibited low nutrient and water intakes. It is recommended that the elderly with dry mouth should drink sufficient water and receive targeted and specific nutritional guidance to prevent malnutrition.

• 생물환경조절학회지
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• 제15권3호
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• pp.211-216
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• 2006

지열을 이용한 열펌프 시스템이 온실의 냉방과 과채류의 묘소질에 미치는 영향을 구명하였다. 온실 내 기온은 주간에는 차광구에 비해서 포그+차광구가 $3{\sim}4^{\circ}C$ 낮았고, 야간에는 지열-펌프+차광구가 차광 및 포그+차광구에 비해 $5{\sim}7^{\circ}C$ 낮았다. 오이, 고추 및 토마토 묘의 초장은 차광이나 차광+포그구에 비해 지열-열펌프+차광구가 가장 짧았고, 엽면적과 건물중은 지열-열펌프+차광구가 다른 처리에 비해 약간 작았다. 결과적으로 건묘지수는 지열을 이용하여 냉방을 한 지열+차광구는 포그+차광구 및 차광구에 비해 모두 높게 나타났다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 하계학술대회 논문집 Vol.4 No.2
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• pp.818-821
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• 2003

Ozonic use of sterilization and heat treatment of raw material to extend the conservation period of food recently is increased by hard vegetable or microorganism sterilization purpose of fruit. If ozone can create as is easy comparatively because do air or oxygen by raw material and schedule period passes, there is advantage that do not leave the second contaminant because being gotten restored by oxygen. Also, because the effect is big to decolorization beside sterilization effect about microorganism, deodorization, disjointing of venomousness hazardous substance, food save, indoor air purge, good hand processing, hydrospace agricultural chemicals processing etc. the use extent is wide. This research ran parallel a sterilization experiment of E.coli colitis germs by ozone that manufacture ozonizer that use doped diamond maund electrode (BDD) by boron and searched special quality electrochemistry enemy of the ozonizer and is created. E.coli. After cultivate E.coli colitis germs during 37C 1 day is LB ship, after do ozonation, was sterilized more than 90% by ozone as result that examine sterilizing power by substance microscope and could confirm excellency of diamond electrode.

• 한국식품저장유통학회지
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• 제8권3호
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• pp.258-263
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• 2001

마늘을 $0^{\circ}C$에서 일반 대기 및 CA 조건 하에서 4개월 저장하면서 기간 및 조건에 따른 저장 중 마늘의 생리적 품질을 폭정하고 pungency와 fructan 등의 화학적 성분 변화를 분석하였다. 저장 중 마늘의 생리적 품질은 저장 조건에 대해서 큰 차이는 없었으나, CA 저장한 마늘이 일반 대기에서 저장한 마늘에 비해서 수분 감량이 더 많이 일어나 dry weight와 경도가 낮게 나타났다. 표면색은 저장 4개월에서 어둡고 진하게 변했다. CA 저장이 마늘의 발근은 억제하지 못하지만 발아율은 일반 대기저장에 비해서 약 50% 억제하는 것으로 나타났다. 일반 대기에서 저장한 마늘이 CA 저장한 마늘보다 더 높은 pungency를 나타내었으며 특히 pyruvate는 산소 농도가 닻은 (1% $O_2$) CA 저장 조건에서 가장 낮은 값을 나타내었다. Fructan은 저장기간에 따라서 점차 감소하는 경향을 나타내었고 fine sugar는 점차 증가하였다. 발아율이 높은 일반 대기 저장의 fructan 함량이 CA 저장의 경우보다 낮은 값을 나타내었다 그러나 20%의 이산화탄소 농도에서 저장한 마늘의 fructan이 가상 많이 감소하는 경향을 보였다

• Journal of Nutrition and Health
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• 제34권5호
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• pp.568-579
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• 2001

This study was conducted to identify the characteristics of Korean diet in the view of food and food group intakes. The study subjects consisted of preschool children(PC), elementary school children(EC), high school students(HS), college students(CS), and adults over 30 years old living Seoul and the surrounding areas. The subjects over 30 years old were classified to 30-49 years, 50-69 years, and over 70 years. A dietary survey was conducted using 24-hour recall method and data were collected from 2392 subjects. Rice was a major contributor to many nutrients intake because of the amount of consumption. Vegetable oil made great contribution to fat intakes and eggs, squid, and anchovy supplied much cholesterol compared to other foods in all the age groups. Milk was major contributor of fat and cholesterol as well as calcium in younger age group, and seasoning gave much contribution to iron intakes. Mean dietary variety score(DVS) was 32 for EC group and 17 for subjects over 70 years, and tended to decrease along the increasing age. EC group consumed most variable number of foods of all groups but they consumed many junk foods, therefore the MAR value was low despite their high DVS value. Mean dietary diversity score(DDS) of each age group from PC group to subjects over 70 years was 4.34, 4.28, 3.79, 3.89, 3.76, 3.56, and 3.25, respectively. Food group, which was consumed below the minimum amount, was mainly fruits in all the age groups, and many subjects in HS group and over 30 years consumed dairy products below the minimum amount. From these results, age specific nutritional problems were found. PC group and subjects over 50 years seemed to need more diverse food intake than now, EC group did nutrient dense food, and HS group and subjects over 30 years did dairy products. Also, subjects took various nutrients from rice and seasoning contributed to some nutrients intakes. (Korean J Nutrition 34(5) : 568∼579, 2001)

• 생물환경조절학회지
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• 제1권1호
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• pp.21-27
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• 1992

야온과 시용질소의 형태를 달리한 양액이 탑채와 백경채의 생육 및 품질에 미치는 영향을 알아보기 위하여 실시한 실험의 결과는 다음과 같다. 1. 탑채, 백경채 모두 야온 15$^{\circ}C$ 에서 생육이 왕성하여 생체중이 무거웠으나 건물율과 vitamin C의 함량은 온도가 낮아질수록 증가하였다. 2. 양액의 N형태 비율에 따른 백경채의 생육은 NO$_3$$^{-}$ : NH$_4$$^{+}$ 의 비가 0 : 8에서만 극히 생육이 저조하고, 다른 처리구에서는 큰 차이가 없었다. 3. 양액내 NO$_3$$^{-}$-N의 함량이 높을수록 vitamin C의 함량이 많고, NH$_4$$^{+}$-N의 함량이 높을 때는 건물율이 높았다.

• 생물환경조절학회지
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• 제7권1호
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• pp.55-61
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• 1998

본 실험은 배양액 내의 황산이온이 참쑥(Artemisia mongolica var. tenuifolia)의 생육에 미치는 영향을 알아보고자 수행되었다. 황산이온은 0, 0.5, 1, 2, 3mM의 농도로 처리되었는데 양액은 벨기에의 채소연구소에서 허브용양액으로 개발된 양액조성을 변형하여 이용하였다. 참쑥의 생육은 일반적으로 3mM 처리에서 좋았으며 건물률 또한 3mM 처리에서 가장 좋았다. 배양액내의 황산이온 농도가 증가할수록 참쑥의 엽록소 함량은 증가하였는데 특히 엽록소 a의 함량이 b함량에 비해 증가의 폭이 컸다. 참쑥의 무기물 함량은 배양액내의 황산이온 농도와 유의성을 보이지 않았으나 조직내 Ca의 함량은 3mM 처리에서 급격히 감소하였다. 식물에 의한 황산이온의 흡수는 배양액내의 농도가 증가할수록 증가하였는데 2mM까지는 서서히 증가 하다가 3mM에서 현저하게 증가하였다. 1mM 황산이온 처리에서 정유의 함량은 가장 높았으나 그 이상으로 농도가 증가할 경우 정유의 함량은 오히려 감소하였다.

• 대한지역사회영양학회지
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• 제10권4호
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• pp.513-524
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• 2005

The dietary habits and eating behaviors of nonagenarian subjects over 90 years old in Korean representative longevity belts of Damyang, Gokseong, Kurye, Sunchang were evaluated. The subjects of the study were 91 elderly people (26 males and 65 females) over 90 years old and their dietary habits, food preferences and meal patterns were collected by individual interview. The percentage of subjects, who answered 'very good' or 'good' for their health status, was $65.9\%$. In this study, $55\%$ of subjects were without chronic diseases, and there was no significance difference in gender. Many subjects had performed regular exercise and outdoor activity. The rate of eating together with their family was $79.1\%$. Most of subjects ($91.2\%$) had a regular mealtime consuming three meals a day, and they had good appetite and pleasure of eating. The higher preference of food group was fruits ($95.6\%$), legumes ($94.5\%$), mushrooms ($93.4\%$) and vegetables ($92.3\%$), but the amount of intakes is higher in vegetables than the others. Eating with family, regular exercise and self-rated good health are improved their nutrient intakes. Most frequently consumed meal pattern was rice plus soup and side dishes. The side dish consumed frequently was Namul (blanch and seasoned vegetables). From this study, the nonagenarian populations in longevity belt in Korea have good dietary habits such as regular mealtime, constant amount of meal and eat with pleasure. They are taking Korean traditional meal pattern, providing enriched antioxidant vegetable foods. Also, it can be concluded that the amount and quality of diet in the long-lived elderly are responsible for the Korean traditional family system.

• 한국산업융합학회 논문집
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• 제23권1호
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• pp.93-100
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• 2020

In this paper, soilless cucumber cultivation was investigated, fermented fertilizer to increase the cucumber yield was considered, and the greenhouse temperature control system for cucumber cultivation is developed. To do this, perlite was proposed to replace soil as growth medium. Fermented cows and pigs manure was proposed as plant fertilizer. Combination of fan, water sprinkler, and pipe heating system was proposed to control the greenhouse temperature. However, because this research was conducted during the summer, the greenhouse system observed in this study only focused on variations in the flow rate of the water sprinkles used. The experimental result shows that soilless culture in the greenhouse could be an alternative to traditional field production for high-value vegetable crops. Furthermore, application of fermented fertilizer of 10% could enhance the growth and increase the yield and quality of crops. The proposed sprinkler flow rate is best suited for cucumber crop with the best thrives was 0.846 kg/s.

• Applied Biological Chemistry
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• 제35권1호
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• pp.36-41
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• 1992

면실유, 옥배유 및 채종유의 산패도를 신속하고 재현성 있게 측정하고자 $60^{\circ}C$ 및 $70^{\circ}C$로 저장한 식용유의 pentanal과 hexanal을 headspace 가스크로마토그라피 방법으로 분석하였고, 그 결과를 관능검사 결과와 상관분석을 실시하였다. Headspace 가스크로마토그라피 방법에서 휘발성 산화생성물의 포집 및 용출은 cold trap-thermal desorption 방법으로 실시하였으며, GC 주입부에 들어가는 splitless mode glass liner insert에 Tenax GC를 충전하여 사용하였다. 23종의 휘발성 산화생성물이 gas chromatography 및 gas chromatography-mass spectrometry에 의하여 검출되었으며, 저장 기간에 따른 pentanal과 hexanal 함량 변화와 관능검사에 의한 산패취 측정 결과의 상관분석을 실시한 결과, pentana(PE), hexanal(HE) 및 log{PE) log(HE) $log(PE){\times}log(HE)$의 세 가지를 변수로 한 회귀식의 상관계수의 값이 각각 0.831, 0.866 및 0.896으로 다같이 높을 값을 보였다. 따라서 headspace 가스크로마토그라피를 이용하여 면실유, 옥배유 및 채종유의 휘발성 산화생성물 중 pentanal과 hexanal을 분석하면 각각의 식용유의 산패도를 객관적으로 평가할 수 있음을 알 수 있었다.