• 생물환경조절학회지
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• 제20권4호
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• pp.269-276
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• 2011

저일조 조건에서 고추와 토마토 유묘의 생육에 미치는 몇 가지 친환경농자재의 이용효과를 검토하고자 하였다. 친환경농자재는 미생물제재, 효소제, 아미노산제 3종을 이용하였고 30% 차광조건에서 토마토와 고추를 육묘하였으며, 육묘용 상토 종류에 따른 차이를 보기위해 일반 원예용(유비)상토와 무비상토를 비교하였다. 토마토와 고추 모두 무비상토에서는 효소제와 아미노산제 처리에 의해 묘의 생육이 양호하였으나, 미생물제재 처리는 대조구와 차이가 없었다. 유비상토에서는 친환경농자재 처리에 의한 생장촉진효과가 나타나지 않았다. 차광처리에 의하여 묘의 건물중은 감소하고, 엽면적은 다소 증가하는 경향을 보였으나, 친환경농자재의 처리에 의한 생육촉진효과는 없었다. 정식 후 토마토 1화방의 개화소요일수 및 착과절위를 조사한 결과, 무비상토의 경우 효소제 및 아미노산제 처리구에서 개화소요일수가 3~4일 적었으나, 착과절위는 차이가 없었다. 다만 차광조건에서 착과절위가 낮아지는 경향을 보였다. 유비상토의 경우는 친환경농자재 처리나 차광 유무에 따른 개화소요일수나 착과절위의 차이가 없었다. 고추는 무비상토에서 차광에 관계없이 효소제 및 아미노산제 처리구에서 건물중이 증가하였으나 미생물제재 처리구에서는 효과가 없었다. 유비상토는 친환경 농자재의 처리효과가 없었다. 따라서 시판되고 있는 효소제와 아미노산제는 무비상토에서 생육촉진효과가 있었으나, 미생물제재 처리는 처리효과가 없었고, 양분이 함유된 상토에서는 친환경농자재의 처리효과가 없었다. 또 차광에 의한 저일조 조건에서 친환경농자재의 혼용 처리에 의한 토마토와 고추 유묘의 생육촉진효과는 없었다.

• 한국육종학회지
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• 제42권5호
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• pp.481-487
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• 2010

The ripening behavior of three apple cultivars, 'Tsugaru', 'Hongro' and 'Fuji' was distinctive and the involvement of POLYGALACTURONASE(PG) in the fruit softening process was confirmed to be ethylene dependent. Fruit softening is genetically coordinated by the action of several cell wall enzymes, including PG which depolymerizes cell wall pectin. Also, loss of firmness is associated with increasing of the ripening hormone, ethylene. In this work, climacteric ripening of three apple cultivars, Tsugaru, Hongro and Fuji, producing different ethylene levels and ripening responses, was examined. Correspondingly in Fuji, a linear and basal ethylene level was observed over the entire period of measurements, and Tsugaru and Hongro displayed a typical climacteric rise in ethylene production. Transcript accumulation of genes involved in ethylene biosynthesis (MdACS3 and MdACO1) and MdPG1 was studied in Tsugaru, Hongro and Fuji cultivars. Expression of MdACO1 transcripts was shown in all three ripened apple fruits. However, the MdACS3 and MdPG1 were transcribed differently in these cultivars. Comparing the MdPG1 of 'Tsugaru', 'Hongro' and 'Fuji', structural difference was discovered by genomic Southern analysis. Overall results pointed out that MdACS3 and MdPG1 play an important role in regulation of fruit ripening in apple cultivar.

• Journal of Nutrition and Health
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• 제43권6호
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• pp.597-606
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• 2010

본 연구에서는 채소와 과일 섭취 증진을 위한 영양교육이 행동변화단계의 진전에 따라 사회심리적요인에 변화를 초래하는지 파악하고자 초등학생을 대상으로 영양교육을 실시한 후 행동전단계를 두 단계로 나누어 이 두 단계 아동들의 채소와 과일 섭취의 장점과 단점에 대한 인지, 인지적 행위적 변화과정, 자아효능감의 수준 변화를 조사하였다. 충남 연기군의 한 초등학교 5학년 아동 71명에 대한 설문 조사에 의해 행동전단계 (고려전, 고려, 준비)로 분류된 47명을 대상으로 2007년 11월 19일부터 12월 24일까지 6주 동안 채소와 과일섭취 영양교육을 실시하고 교육전과 후에 사회심리적요인의 수준을 설문지법에 의해 조사하였다. 1) 영양교육 후 채소섭취의 장점에 대한 인지도 점수는 고려전단계나 고려 및 준비단계에 속한 대상자 모두에서 증가하였고, 단점에 대한 인지도 점수는 두 단계 모두에서 감소하였다. 그러나 과일섭취에 있어서는 장점에 대한 인지도 점수에서는 고려전단계와 고려 및 준비단계 모두에서 교육 후 변화가 없었으나, 단점에 대한 인지도 점수는 고려전 단계에 속한 대상자에서만 유의적인 감소가 나타났다 (p < 0.01). 채소섭취에 대한 장점과 단점에 대한 인지 개선 영양교육은 두 단계 모두에서 효과적이었다. 2) 영양교육 후 채소섭취의 인지적 변화과정에서는 고려전단계의 대상자에서 의식향상 (p < 0.001)점수가 증가되었고, 고려 및 준비단계에 속한 대상자에서는 걱정해소 (p < 0.01), 자기재진단 (p < 0.05), 환경재평가 (p < 0.01), 사회규범변화(p < 0.05) 등 여러 변수의 점수가 증가하였다. 과일섭취의 인지적 변화과정에서는 고려전단계에 있는 대상자에서 환경재평가 (p < 0.01)점수의 증가를 나타내었고, 고려 및 준비단계에서는 변화를 보인 변수가 없었다. 채소와 과일섭취의 행위적 변화과정에서는 모두 변화가 없었다. 3) 영양교육 후 채소섭취에 관한 자아효능감은 고려전단계에 있는 대상자에서 '채소를 보이는 곳에 둔다' (p < 0.01)와 '혼자 채소를 먹을 때 권장섭취 횟수만큼 먹을 수 있다' (p < 0.01). '채소 먹을 시간을 낼 수 있다' (p < 0.05)에서 증가를 나타내었다. 고려 및 준비단계에서는 고려전단계에서 나타난 '혼자 채소를 먹을 때 권장섭취 횟수만큼 먹을 수 있다' (p < 0.01)와 '채소 먹을 시간을 낼 수 있다' (p < 0.01)의 항목을 포함하여 '다양한 종류의 채소를 살 수 있다' (p < 0.01)에서 교육 후에 자아효능감이 높아졌다. 즉 채소섭취의 행동변화단계가 높아질수록 자아효능감의 수준이 성숙됨을 보였다. 과일섭취에 대해서는 영양교육 후 고려전단계에 속한 대상자에서 '과일을 보이는 곳에 둔다'의 자아효능감의 점수가 증가되었다 (p < 0.05). 이상의 연구결과에서 영양교육 후 행동전단계에 있는 아동들의 행동변화단계의 진전이 일어났고, 고려전단계와 고려 및 준비단계에서 모두 사회심리적요인의 수준이 높아졌으나 두 단계 간에는 교육효과의 유의적인 차이가 없었다. 과일에 비해 채소섭취와 관련된 사회심리적요인에서 교육 효과가 더 크게 나타났으며, 사회심리적요인들 중에서 판단 균형의 단점에 대한 인지도, 인지적 변화과정, 자아효능감이 영양교육의 평가지표로 사용될 수 있는 가능성을 보였다.

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2000년도 추계 학술발표회
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• pp.53.2-53
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• 2000

• Journal of Community Nutrition
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• 제8권1호
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• pp.3-8
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• 2006

This retrospective study was designed to evaluate the nutrient contributions of the five meal components of school lunch menus planned for elementary students in two school districts (District A and B) in the Midwestern state of the United States. The 4-week cycle menu was planned for two time periods (Period 1 and Period 2) following guidelines for NuMenus and general menu planning principles. Menu components of planned and served menus for two time periods were analyzed using $Nutri-Kids^{TM}$. No significant differences in the nutrient content of between Periods 1 and 2 were found for District A. District B served significantly more vitamin A and total fat in Period 1 and significantly more calories, iron, vitamin A, protein, and total fat in Period 2 than was planned. The major nutrients provided by the entree component included protein, calories, cholesterol, total fat, saturated fat, and sodium. Milk was an important source of calcium and provided approximately one-third of the total protein and vitamin A in the meal. The vegetable/fruit component was the major source of vitamins A and C. The grain/bread component provided approximately 20% of the carbohydrates among five meal components. The miscellaneous component affected the sodium and fat content of the menus. Menu planners can use the results of this study to enhance their knowledge of the nutrient contributions of each meal component and as inputs for planning menus that meet children's nutritional requirements.

• Journal of Nutrition and Health
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• 제34권2호
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• pp.165-175
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• 2001

We performed case-control study to evaluate relationship between food intake and risk of breast cancer. We interviewed breast cancer cases(n=108) who were newly histologically identified and selected from Hanyang and Soonchunhyang University Hospital in Seoul. We used hospital-based control subjects(n=121), who were selected from the patients in the department of plastic surgery, general surgery and opthalmology of the same hospital by frequency matching. Matching variables were age($\pm$4 age) and menopausal status. We collected information on general characteristics of subjects, history of disease, family history of breast cancer, vitamin supplementation, alcohol intake, and food intake through individual interview. Dietary information was ascertained via a food frequency questionnaire method(total item=98). All analyses was conducted according to menopausal status. Especially, pepper and grape intake in premenopausal women, showed protective effect in breast cancer. Otherwise consumption of meat, pork, and fish was not associated with breast cancer risk in this study. At milk and dairy products, milk intake was associated with lower risk of breast cancer in postmenopausal women and overall intake of soy products was associated with breast cancer risk, but not significant. These findings suggested that consumption of some fruit and vegetable intake was a protective factor on breast cancer and further study with more number of subjects should be need to evaluate the breast cancer risk. (Korean J Nutrition 34(2): 165~175, 2001)

• Preventive Nutrition and Food Science
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• 제5권4호
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• pp.197-199
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• 2000

Clarified fruit and vegetable juices (apple, carrot and tangerine) were produced using ultrafiltration and their color change due to the mixing ratio were evaluated. clarification was carried out by passing he supernatant of extracted juice through a filter and also by using a membrane of molecular weight cut-off 10,000 Daltons to obtain the juice ultrafiltrates. The mixing ratio between apple and carrot juices was kept constant at 1:1 while increasing the amount of tangerine juice according to 10, 20, 30, 40 and 50% an stored at 4$^{\circ}C$ prior to the color measurement. Hue angle ({TEX}$h_{ab}${/TEX}) and {TEX}$L^{*}${/TEX}-value increased as the tangerine mixing ratio increased. The color difference indicated by ΔE-value also increased as the amount of tangerine increased indicating that the color of the mixed juice became pale and the changes were slight but distinctive. On the other hand, chroma ({TEX}$C^{*}${/TEX}), {TEX}$La{*}${/TEX}- and {TEX}$b^{*}${/TEX}-values decreased as the tangerine mixing ratio increased indicating that the color of the mixed juice became slightly more grayish and the samples were becoming les yellow. A simple mathematical model to predict each color characteristic is proposed.

• 한국식품영양과학회지
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• 제27권6호
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• pp.1059-1064
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• 1998

Fermented beverage using lactic acid bacteria isolated from kimchi was investigated. Lactic acid bacteria KL 1, KD 6, KL 4 strains from kimchi, or obtained Lactobacillus acidophilus, Lactobacillus plantarum, Leuconostoc mesenteroides with and without yeast(Saccharomyces cerevisiae) were inoculated in fruit vegetable juice for single and mixed culture fermentation. During the fermentation by bacterial strain and yeast for 1~3 days at 30oC, various fermentation behaviors were observed. The growth rate of mixed culture of KL 1 and yeast was higher than that of single culture by KL 1 alone during the fermentation. The amount of organic acid produced by the mixed culture fermentation of KL 1 and yeast was 0.82%(3 day) or 0.58%(1 day) and with the final pH of 3.3(3 day) or 4.2(1 day). These mixed culture systems of isolated strains or other bacterial strains had almost similar results of growth rate and acid production. Among several bacterial strains, KL 1 was suitable for the mixed culture fermentation with yeast in terms of desirable fermentation behavior and organoleptical quality. The selected strain, KL 1 was identified as Leuconostoc spp. through the series of tests on carbohydrate fermentation and biochemical characteristics.

• 한국약용작물학회지
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• 제12권5호
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• pp.355-359
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• 2004

A survey was conducted during $April{\sim}May$ 2004 to determine the occurrence and population density of plant-parasitic nematodes in ginseng (Panax ginseng C.A. Meyer) growing fields, in major ginseng growing regions of Chungbuk, Chungnam, Gyeongbuk and Kyongki provinces. The survey revealed presence of eleven species of plant-parasitic nematodes namely, Criconemoides morgensis, Ditylenchus destructor, Helicotylenchus dihystera, Meloidogyne incognita, M. hapla, Paratylencgus lepidus, Pratylenchus penetrans, Psilenchus hilarulus, Trichodorus similis, Tylenchorhynchus claytoni and Xiphinema americanum. Frequency and density of each species were highly variable. M. incognita and M. hapla were the predominant species, their infestation observed in 46.3 and 39.4% fields with an average density of $78{\sim}254\;and\;76{\sim}211$ nematodes per $300\;cm^3$ soil, respectively. Whereas, T. similis and X. americanum were rarely observed; only in 2.3 and 1.8% of surveyed fields and their density was $10{\sim}17\;and\;7{\sim}10$ individuals per $300\;cm^3$ soil, respectively. They are recorded herewith for the first time from ginseng fields of Korea. In nematode-infestated fields, stunted plant growth with chlorotic leaves, and wilted plants were observed in patches.

• Nutrition Research and Practice
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• 제1권3호
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• pp.218-223
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• 2007

This study investigated: 1) what weight-related behaviors college students practiced; 2) if the behaviors were performed for weight-related reasons; and 3) whether the behavioral practices differed by gender, race, and body weight status. This cross-sectional study used a questionnaire to collect information from a non-probability sample of undergraduate students (n=379; 48% men) recruited from large introductory psychology classes. Chi-square tests were conducted to examine simple comparisons, and multiple logistic regression analyses assessed differences. Male students reported adopting significantly fewer weight-related behaviors than females. Most frequently males increased exercise (69.2%), increased fruit and vegetable consumption (50%), skipped meals (46%), cut out sweets and junk foods (40%), and cut out between-meal snacks (35%). Female students most frequently increased exercise (67.4%), skipped meals (63%), increased fruit and vegetable consumption (62%), reduced the amount of food eaten (60%), and cut out between-meal snacks (51%). Negative behaviors were engaged in by only a few participants. Weight-related reasons were a significant factor for weight-related behavior adoption. Multiple logistic regression analyses showed that gender was consistently and significantly associated with the adoption of weight-related behaviors, while race and weight status were less consistently associated. Findings of this study will be helpful to dietitians who counsel college students. Results of this study may support effects to bring more comprehensive behaviorally-focused health md nutrition interventions to college campuses.