• 한국토양비료학회지
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• 제45권4호
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• pp.602-609
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• 2012

Burkholderia anthina R-4183, Burkholderia diffusa R-15930 and Burkholderia stabilis LMG 14294 isolated from green house soils (Gongju-Gun area, South Korea) were characterized and their phosphate solubilizing ability was assessed. Under in vitro culture conditions, all three species were proved to be effective in solubilizing phosphates in varying degrees. Strain Burkholderia anthina exhibited the highest phosphate solubilization in NBRIP medium ($665{\mu}g\;ml^{-1}$) followed by Burkholderia diffusa ($630{\mu}g\;ml^{-1}$) and Burkholderia stabilis ($578{\mu}g\;ml^{-1}$). However, solubilization of $FePO_4$ and $AlPO_4$ was found to be poor in all the strains. Acidification by means of gluconic and oxalic acids accumulation in the culture medium could be the possible mechanism responsible for phosphate solubilization. Glucose at the rate of 3% was found be the best carbon source for Burkholderia anthina while other two Burkholderia species showed maximum phosphate solubilization at 2% of glucose. In the case of nitrogen sources, ammonium and nitrate were equally effective in solubilizing phosphates by Burkholderia species. Despite a slight decrease in phosphate solubilization observed at increasing temperature, all three Burkholderia species could withstand a temperature of $30-35^{\circ}C$, pH at the range of 7-9 and the presence of NaCl (up to 2.5%) without much compromising the phosphate solubilization. As shown with potted mung bean seedlings, all the three isolates could enhance soil fertility and plant growth indicating their great potential to be used as bio-inoculants.

• Weed & Turfgrass Science
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• 제2권4호
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• pp.381-386
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• 2013

지구온난화로 인한 기후변화로 인하여 강수량과 집중강우의 빈도가 높아질 것으로 예측된다. 본 연구는 잔디류와 기타 식량 원예작물 들의 토양유실을 알아보고자 수행하였다. 작물별 토양유실은 한국잔디와 한지형잔디 처리구의 강수량 및 강우 강도와 상관없이 토양유실이 거의 발생하지 않아서 토양침식에 대한 보호 효과가 매우 우수하였다. 작물별 연간 토양 침식 총량은 한국잔디로 전면 피복된 곳이 가장 적었으며, 그다음 줄떼로 조성된 한국잔디와 한지형잔디로 피복된 실험구에서 토양침식이 매우 적었다. 그리고 밭벼와 콩 재배구에서 5~10 $MT{\cdot}ha^{-1}{\cdot}yr^{-1}$, 고추 재배구에서 7~14 $MT{\cdot}ha^{-1}{\cdot}yr^{-1}$의 토양침식량이 발생되었다. 잡초가 방치된 실험구의 토양침식이 크게 감소된 것에 반하여 잡초가 제거된 나지의 연간 토양침식 총량은 18 $MT{\cdot}ha^{-1}{\cdot}yr^{-1}$이상 크게 발생되었다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제34권1호
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• pp.1-10
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• 2008

Oral squamous cell carcinoma (OSCC) is the most frequent form of oral cancer and holds the eighth position in the cancer incidence ranking. OSCC patients are treated by classical therapeutic modalities consisting of surgery, radiotherapy, and/or chemotherapy. But OSCC still shows significant mortality rates. Thus, new therapeutic approaches have been investigated and the most promising one is naturally acquired agents with known anti-cancer effects. Genistein is a compound extracted from soy bean. Its anti-cancer effect on breast cancer is well established now and it is investigated whether it has similar effect on OSCC. It inhibited the growth and invasive-ness of OSCC cells in vitro, but these effects did not work in living animals in vivo. Catechin is a compound from green tea and its anti-cancer effect on OSCC is known better than other agents. Catechin showed its anti-cancer effect in vitro via induction of apoptosis, cell cycle arrest, inhibition of growth, and down-regulation of invasion/metastasis. These effects were confirmed in vivo with mouse model. Cordycepin is one of major pharmacologically important components in Cordyceps Militaris and may exert its anti-cancer effect as an adenosine receptor agonist. In recent study, it inhibited the proliferation of OSCC cells via A3 adenosine receptor. But because there is very scarce evidence on this effect, more researches are needed on this theme.

• 대한화장품학회지
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• 제35권1호
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• pp.41-46
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• 2009

두피의 이상은 탈모, 비듬, 가려움증 등의 두피 질환으로 이어지며, 아직까지 정확한 원인이 규명되지 않은 상태여서 발병하면 치료가 쉽지 않다. 따라서 두피의 생리적인 항상성을 유지해서 두피를 건강한 상태로 유지하는 것이 두피 질환 예방 및 치료에 가장 효과적인 방법이다. 최근 두피 및 모발용 화장품 분야에서는 한의학적으로 효능이 있다고 알려진 약재들을 원료로 사용하려는 시도가 크게 증가하고 있다. 현재까지 화장품 원료로 사용되는 한약재는 대량생산과 규격화 등의 문제로 뜨거운 물에 우려낸 열수추출물을 제형에 혼합하는 형태로 사용하고 있는데, 이 과정에서 고온에 의한 영양소와 효능성분의 파괴는 불가피하다. 따라서 본 연구에서는 한의학적으로 두피 개선 효과가 있다고 알려져 있는 검은콩, 작약, 녹차 잎을 대상으로 성분파괴를 최소화할 수 있는 저온용출법으로 효능 성분을 추출하고, 이 추출물들의 두피 개선 효능을 평가하였다. 실험 결과, 저온용출물들은 열수 추출물보다 평균 2배 이상 높은 항산화력을 보유하였으며, 모낭 및 모발 강화, 두피 보습, 가려움 방지에 효과적임을 확인하였다. 따라서 검은콩, 작약, 녹차잎의 저온용출물은 두피 트러블을 해결하는 효과적인 두피 개선 원료로 활용될 수 있다.

• 한국식품과학회지
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• 제53권5호
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• pp.553-560
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• 2021

본 연구에서는 저온진공조건에서 추출 시간과 농도에 따른 녹차 열수추출조건을 최적화한 후 HP-20 column으로 caffeine을 제거한 녹차 추출물을 이용해 theanine 함유 기능성 젤리를 제조하였다. 또한, theanine 함유 젤리의 품질 특성, 제형안정성 및 항산화 효과, AChE 억제능을 조사하였다. 최적추출조건은 8% 녹차 분말을 2시간 추출하여 theanine 0.95 mg/mL, GABA 0.28 mg/mL, caffeine 1.45 mg/mL 추출액을 HP-20 column을 이용해 80% 에탄올로 카페인을 제거하였다. 3종의 겔화제와 농도별로 4종의 theanine 추출물 S1-S4(10-50%)을 제조해 품질 특성을 조사한 결과, 젤리에 theanine 추출물이 많을수록 L값과 b값이 증가하였다. 젤리의 물리적 특성을 조사한 결과, 3가지 겔화제 중 타마린드검, 잔탄검, 로거스트콩검(2:3:5=w/w/w)을 조합한 겔화제 III이 경도와 점착성이 낮고 탄력성이 높아 조직감이 가장 뛰어났다. 제형안정성 조사 시, 35%가 첨가된 S3가 이수율 25.88%과 붕괴율 1.31%로 우수한 제형안정성을 나타냈다. 또한 theanine 함유 젤리는 95℃, 30분간 가열조건에도 theanine과 GABA 성분이 파괴되지 않고 대부분 잔존하는 것을 TLC와 LC-MS 분석을 통해 확인했다. Theanine 추출물의 농도가 높을수록 DPPH radical 소거능은 증가하며, S4(50%)는 0.075 mg/mL ascorbic acid 수준과 유사한 항산화력을 나타냈다. AChE 저해 효과는 S3(35%)가 가장 높았으며 이는 donepezil 2.5 μM과 동일한 수준의 AChE 저해 활성을 나타냈다. 따라서 본 연구는 녹차 추출물에서 caffeine을 제거한 theanine 추출물로 기능성 젤리를 제조하였으며 품질 특성을 조사하였다.

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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• pp.149.2-150
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• 2003

Occurrences of virus diseases on paprika ( Capsicum annuum var. grossum) were surveyed in Joennam province from 1999 to 2003 and the collected samples showing virus-like symptoms were tested using ELISA. Virus diseases appeared 4.5％, 17.5％, and 4.9％ in 2000, 2002, and 2003, respectively. As the results of investigation of the seasonal incidence with the growing stages of plant, virus was not occurred at seedling stage and was slightly from the planting time to the first harvesting time, but was dramatically increased at the second harvesting time. Virus diseases were more severe on the vinyl house than on the green house. Pepper mild mottle virus (PMMoV) was severely occurred in 2000 but not after that year. Comparing the virus species, Pepper mottle virus (PepMoV) was 35.9％, Broad bean wilt virus (BBWV) was 14.1％, and Cucumber mosaic virus (CMV) was 10.9％ in 2002, and 76.0％, 11.1％, and 2.4％ in 2003, respectively.

• Journal of Community Nutrition
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• 제2권1호
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• pp.52-61
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• 2000

Dietary guidelines are a distillation of dietary advice from health professionals to the general public. They are based upon current scientific knowledge about the relationships between diet and disease, nutrients available in the food supply of a country, and the profile of morbidity and mortality in that country. With two different sets of dietary guidelines used for more than an decade in Korea. the necessity of revising dietary guidelines has been raised continuously from academia and research. Funded by a grant from the Health Technology Planing and Evaluation Board. Dietary guidelines for each age group were drafted as a research project and the one for the Korean elderly is as follows: Dietary Guidelines for the korean elderly(draft) - Have a variety of easily digestible foods on time; at least 3 meals a day and some snakes. - Be physically active to maintain appetite and/or ideal body weight. ; maintain a balance between activity and what you eat. -Increase consumption of bean-and dairy-and dairy-products. - Consume enough amounts of fresh dark-green and yellow vegetables and fresh fruits. - Consume adequate amounts of assorted kind of animal foods including fish, meat and poultry. - If you drink alcoholic beverages, limit your intake and, drink enough water and other averages; alcohol may interact with your medication and affect your appetite. Aforementioned draft and related contents are expected to be utilized as a neat base in formulating(or revising) dietary guidelines for Korean by the Government in near future.

• 대한지역사회영양학회지
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• 제5권4호
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• pp.598-607
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• 2000

The purpose of this study was to investigate the intake, preference, and utilization of kimchi in female high school students. A questionnaire was used as the instrument of investigation. The subjects were 371 female high school students in Chonbuk province. More than 80% of the subjects had eaten 8 kinds of kimchies Korean cabbage kimchi, cubed radish kimchi, radish leaves kimchi, green onion kimchi, salted cucumber, watery radish kimchi, radish root & leaves kimchi, and Korean wild radish kimchi. The subjects living in urban areas ate more stalk of sweet potato kimchi and leaf mustard kimchi, however the subjects living in rural areas ate more sedum kimchi. The subjects in large families ate more leaf mustard kimchi and sedum kimchi. The preferred kinds of kimchi were radish kimchi, Korean cabbage kimchi, cubed radish kimchi, and cucumber radish kimchi. Seventy-four point four percent of the subjects liked kimchi, whereas 1.6% of them disliked it. The reason eating kimchi was 'custom'(59.0%), 'taste'(30.7%), 'nutrition'(4.3%), 'traditional flod'(2.7%), and 'parents advice'(2.7%). 38.4% of the subjects in urban area ate kimchi for taste whereas 25.0% of them in rural area did. They prefefrred 'well fermented', 'hot', and 'very pungent' kimchi. The preferred dishes made with kimchi were stir-fried rice with kimchi, kimchi stew, pan-fried kimchi, and rice with bean sprouts & kimchi.

• 한국자원식물학회지
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• 제31권6호
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• pp.704-713
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• 2018

Roasting has revealed coffee's potentials as a good source of bioactive compounds. This study was done to investigate the quantitative presence and activity of bioactive compounds including caffeine, chlorogenic acid (CGA), amino acids, and antioxidant capacity on Coffea arabica L. (Guatemala finca San Sebastian) and C. robusta L. (India Azad Hind). Analysis was performed on Green Bean (GB) Medium-Light (ML), Medium (ME) and Medium-Dark (MD) samples of both varieties. From the results, caffeine content was highest in ME samples of both varieties. GB samples of both varieties had high CGA content which decreased after increasing roasting time and temperature. Most amino acids in GB samples was highest, however, glutamic acid, valine, tyrosine, isoleucine, leucine and phenylalanine had highest quantitative increase in ME samples for both varieties. $IC_{50}$ of DPPH and ABTS radical scavenging activity was highest in ML samples of both varieties. $IC_{50}$ of reducing power and total phenolic content was highest in GB sample of both varieties but decreased after increasing roasting conditions. Generally Robusta had the highest quantity of bioactive compounds and antioxidant activity. From this study, the optimal roasting condition for coffee is ME above which there is a significant reduction of bioactive compounds and antioxidant activity.

• 한국작물학회지
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• 제39권2호
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• pp.171-174
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• 1994

콩 비린내에 관여하는 lipoxygenase가 결핍된 계통들의 가공적성 및 제품개발의 타당성을 알아보고자 두부와 두유제조시 일반콩과의 특성을 비교 검토한 바 그 결과는 다음과 같다. 1. 두부 제조시 lipoxygenase가 일부 결핍된 수원169호는 일반콩인 황금콩에 비해 수율 및 색도는 비슷하였으나 관능검사는 높게 평가되었다. 2. 두부의 일반조성도 공시재료간에는 비슷하였으나 수원169호가 황금콩에 비해 총당 함량은 높게 나타났다. 3. 실험실 규모에서 두유 제조후 관능검사를 실시한 결과 lipoxygenase 결핍계통이 향기 및 맛에서 우수한 것으로 평가되었다. 4. 공장 규모의 두유제조에서도 수원169호가 황금콩에 비해 두유 가공적성이 우수하였다.