• Title/Summary/Keyword: quality of contents

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Effect of Reflective Film Mulching on the Stomatal Features, Transpiration Rate and Photosynthetic Rate of Tomato Plants in Greenhouse Cultivation (반사필름 멀칭이 토마토의 기공특성, 증산속도, 광합성속도에 미치는 영향)

  • 조일환;김완순;허노열;권영삼
    • Journal of Bio-Environment Control
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    • v.6 no.4
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    • pp.292-298
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    • 1997
  • These studies were conducted to verify the effect of the supplementary lighting by reflective film mulching and its establishment in the north side of greenhouse on the utility of light at tomato by means of investigating changes of leaf temperatures, stomatal features, transpiration rates and photosynthetic rates. Stomatal density of leaves were high in the reflective film mulching but sizes of stomata were not different. As the osmotic potential in rooting zone was low, the stomatal resistance was high, transpiration rate was low, and leaf temperature was increased by 40.62$^{\circ}C$. And also in the block of reflective film mulching photosynthetic rates were decreased hut chlorophyll contents were not different. Especially, there is an effect of controlling greenhouse whiteflies by treatment of reflective film mulching. It is thought that the reason of high quality or increasing yield at several crops by supplementary lighting, such as reflective film mulching, would be caused by influences of absorption and distribution of nutrients through high transpiration rate and photosynthesis which resulted from increase of stomata.

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Effect of Green Tea Powder on the Sensory Quality of Cooked Rice (분말 녹차가 쌀밥의 관능적 특성에 미치는 영향)

  • Shin Doo-Ho;Lee Yeon-Wha
    • The Korean Journal of Food And Nutrition
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    • v.17 no.3
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    • pp.266-271
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    • 2004
  • In this study, rice was cooked with 0%, 0.5%, 1.0% and 2.0% green tea powder content to improve functionality of cooked rice. The effects of green tea powder content on the physical, texture and sensory characteristics of cooked rice were examined. Moisture contents of cooked rice with green tea powder were decreased with increasing amounts of added green tea powder. Initial pasting temperature of rice powder was showed an increase with increasing amounts of added green tea powder, besides peak viscosity was decreased. The solubility and swelling power were decreased with increasing amounts of added green tea powder. The color of cooked rice was darkened gradually with the increasing amounts of added green tea powder, and showed the dark green. Sensory adhesiveness was gradually decreased with the increasing amounts of added green tea powder, and cohesiveness, gummness, chewiness and hardness were increased. Sensory glassiness, overcook, stickiness and hardness had lower score than control group, but sensory color, flavor and overall acceptability had higher score with addition of 1.0% and 2.0% green tea powder. Concludingly, in items of overall sensory, cooked rice with 1.0% green tea powder showed the best result.

Survey on the Local Residental Utilization and the Mineral Content of Mineral Water in Chung Nam Area (충남 지역 주민들의 약수 이용 실태 및 무기질 함량에 관한 조사 분석)

  • Song, Eun-Seung;Kim, Eun-Gyung;Woo, Na-Ri-Yah
    • The Korean Journal of Food And Nutrition
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    • v.19 no.4
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    • pp.515-525
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    • 2006
  • Survey was done to total 250 people to analyze characteristics of water quality in 5 widely used mineral water springs-(Teajosan(a), Leechungmukong(b), Onju(c), Yeongin(d), Crown(e))-in Chung-nam area and local mineral water usage. And the content of mineral and physico-chemical properties were compared in 5 sites. The largest users of mineral water spring was $40{\sim}50's$ of ages. Among those mineral water spring users, 52.5% had regular dietary habit and 32% showed improvement in lift habit after using mineral water spring. The mineral water spring users were engaged in student, housewife, professional, self-employed, etc. Those who were highly interested in health were likely to use mineral spring water more often regardless of age and occupation. Five mineral water springs differed in contents of mineral. The average content of minerals was $Ca\;28.5mg/{\ell},\;K\;1.5mg/{\ell},\;Mg\;5.3mg/{\ell},\;Na\;14.3mg/{\ell}$. 'K index' was an indicator of healthy water, and 'O index' was an indicator of tasty water. According to K indek and O index, waters of a b, c and e area were classified as 'tasty and healthy water', and water of e area had the highest values in both K and O index d area was classified as 'tasty water.'

An Integrative Review of Depression Related to Intervention Studies for Women in Korea Journals (국내 여성우울 중재연구에 관한 분석-통합적 고찰)

  • Choi, Eun Young;Lee, Eun Hee;Hyun, Hye Jin;Byeon, Mi Kyeong
    • Women's Health Nursing
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    • v.21 no.4
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    • pp.284-296
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    • 2015
  • Purpose: The aim of this study was to provide basic data on the intervention for depression program development and application by analyzing the depression intervention studies for women that were published in Korea Journal (2000~2014). Methods: The research method used was the integrative review. Nine studies were reviewed from the Nursing Articles and National Assembly Library of which 41 studies were from 126 research papers that met the inclusion criteria and analyzed using MINORS (Methodological Index for Non-Randomized Studies) and according to general characteristics. Results: There were non-equivalent control group pre-post test design (78%) in research design. 44% of articles in sample size were 14~26 participants and measuring tools were used CES-D (29%), BDI (I & II, 22%), GDSSF-K (22%). In quality of research according to MINORS, most of the papers got 2 scores except for the items of sample size calculation standard. Even though the similar intervention program were reported, the results could not compare because of diverse contents, duration, methods, and measuring tool with intervention program. As the results, aroma, massage, and counseling programs seemed to have significant effects of depression alleviation. Conclusion: The standard tailored program and measuring tool for depression alleviation of women was needed to develop.

A Critical Reading of Freedom Center Apacle by Architect Kim Su Geun (김수근의 자유센터에 대한 비평적 독해)

  • Khang, Hyuk
    • Journal of architectural history
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    • v.21 no.1
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    • pp.135-154
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    • 2012
  • The goal of this paper is to analyze the Freedom Center Apacle in Seoul designed by Kin Soo Geun who was a leading architect in Korean Modern architecture. Freedom Center was built in 1963, that was the largest monumental building to support military regime during cold war period in Korea. This paper deals with historical background of construction of Freedom Center and its characteristics compared to similar monumental buildings, especially Corbusier's Chandigar and Kenzo Tange's Hiroshima Peace Center. The Monumentality in Freedom Center came from the reference to these two buildings and its site plan. This paper tried to show how similar the layout of buildings between the Freedom Center and Peace Center. The origin of the sublime aura in Tange's linear layout of Peace Center is from Japanese Famous Shrine(Jinku). Kim translated it to serve the ideological purpose to protect from socialist regime in the name of freedom. Its over-scaled roof and weak contents showed Freedom center was a kind of theaterical setting belong to formalist building. But in spite of its symbolic and representational gesture its also had a architectonic physical quality to make it a monument. The change and duration in time testified the autonomous power of architecture in Freedom Center. Freedom Center was also important for using the exposed concrete and its superior finish. It was influenced not from western way of Benton Brut which was usually called New Brutalism but Japanese way of treating expose concrete. In spite of its limits Freedom center achieved new trend and sensibility in Korean Modern Architecture.

Quality Characteristics of Muffins with Xylitol (자일리톨 첨가 머핀의 품질특성)

  • An, Hye-Lyung;Heo, Soo-Jin;Lee, Kwang-Suck
    • Culinary science and hospitality research
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    • v.16 no.3
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    • pp.307-316
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    • 2010
  • The principal objective of this study is to develop the optimal recipe for muffins prepared with replacement of sucrose with xylitol. The effect of xylitol on properties of muffins was evaluated in terms of height, volume, weight, specific volume, baking loss rate, crumbScan, colorimeter, sensory evaluation, and staling of muffins during storage days(0, 1, 3, 5 days) was measured by texture analyzer. Hardness of muffins was increased by adding xylitol, significantly during storage. Lightness(L value) of crust was increased significantly as the contents of xylitol increased. According to sensory evaluation, the muffins(control group) without xylitol had highest score in appearance and texture. In flavor, taste and overall acceptance, muffins with 25% of xylitol showed the best result but were not significant between the muffins(control group).

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Effect of Dietary Energy and Protein Contents on Buffalo Milk Yield and Quality during Advanced Lactation Period

  • Bovera, F.;Calabro, S.;Cutrignelli, M.I.;Di Lella, T.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.5
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    • pp.675-681
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    • 2002
  • Among Italian buffalo farmers, it is widely held that administering diets with high energy and protein concentrations is an effective way to increase milk production. In order to assess the validity of this opinion, we verified milk yield and physico-chemical characteristics from buffaloes that, from the $5^{th}$ month of lactation, were fed two total mixed rations (TMRs) which, given the same intake, should have led to satisfaction of protein requirements though with a slight energy deficit (diet A) or excessive amounts of energy and protein (diet B). Estimate of the energy and protein value of the diets and that of the corresponding requirements was carried out both by using two software programs derived from the Cornell Net Carbohydrate and Protein System (1992), and with the method set up by INRA researchers (1988). The results obtained show that the two diets administered did not result in significant changes to the quantity of milk produced. However, with Diet B the protein concentration in the milk was significantly (p<0.01) higher, although this was partly offset by the higher concentration (p<0.05) of non-protein nitrogen (NNP). The Group B buffaloes also showed significantly higher blood urea levels (p<0.01), with concentrations exceeding those considered physiological for lactating buffaloes. Finally, while administering Diet A the Body Condition Score (BCS) was close to 6.5 (Wagner et al., 1988), whereas in buffaloes which used Diet B it sometimes increased by over 0.5 points. As regards which of the two methods compared is more suitable for expressing dietary energy and protein value and corresponding requirements, we feel that due to the high variability in the Italian Mediterranean buffalo's milk production aptitude, it would be premature to express a judgement on methods which rest on a common scientific base and do not differ substantially.

Oak Mushroom Cultivation on Larch(Larix leptolepis Gorden) sawdust and its economic efficiency (낙엽송 톱밥을 이용(利用)한 표고버섯 재배(栽培)와 경제성)

  • Min, Du Sik
    • Journal of Korean Society of Forest Science
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    • v.83 no.4
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    • pp.512-520
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    • 1994
  • To enhance the utilization of Larch(Larix leptolepis Gorden) wood, the sawdusts were tested as cultivating media for Lentinus edodes(Mori 290) by varying the composition of the media. The economic efficiency for producing mushrooms from larch sawdusts was evaluated. The results are as follows. 1. Larch sawdust was as much efficient as oak sawdust in the growth of the mycelia and production of good quality of oak mushrooms. 2. The mushrooms were able to be harvested starting six months after beginning the cultivation. No differences were found among the qualities of the mushrooms produced by various treatments. 3. The contents of lignin(28.6-28.7%) in the fresh sawdust of larchwood are higher than those in the residues of the used media(18.2%). But lignin content of 1% NaOH extracts(30.4-34.4%) in fresh sawdust of larch was lower than those in the residues(68.0%). 4. The production of mushroom was relatively high to be 29.7-31.5%(760-780g.)/2.5kg pack) of mushroom weight. The net profit estimated was 1,475Won per pack.

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Effects of Biological Control Agent Algicidal Bacterium on the Phytoplankton Community and Microcystin-LR Contents in a Mesocosm Experiment (살조세균 적용이 식물플랑크톤 군집과 조류독소 분포에 미치는 영향)

  • Jung, Seung-Won;Seo, Jong-Kun;Suh, Mi-Yeon;Han, Myung-Soo;Kim, Baik-Ho
    • Korean Journal of Ecology and Environment
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    • v.38 no.2 s.112
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    • pp.261-270
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    • 2005
  • Biological control agents (BCA; algicidal bacterium Xantobacter autotrophycus) plus casitone media, strongly changed physicochemical variables, standing crops of phytoplankton and microcystin-LR phytoplankton in 100-L mesocosm constructed in a small hexagonal pond (3.5 m ${\times}$ 5 m). No M. aeruginosa showed by 8 days, and 60% of total standing crops of phytoplanktons were decreased by the BCA treatment. BCA treatment also induced a strong decline of cellular extracted microcystin-LR (MCLR) and a remarkable increase of dissolved MCLR with the decrement in standing crops of cyanobacteria. In addition, BCA strongly increased all nutrients, but new outbreak of phytoplanktons hardly showed in the experimental mesocosm. The field application of BCA to controling the cyanobacterial bloom in large lakes and reservoirs is not relevant due to high concentration of nutrients and toxins. Thus, a further study is needed to diminish the adverse effects after BCA treatment for water quality preservation.

Quality Characteristics of Balloon Flower Leaf Tea with Different Times of Roasting and Rubbing (덖음 및 유념 횟수를 달리한 도라지 잎차의 품질 조사)

  • Eom, Hyun-Ju;Kwon, Nu Ri;Jeong, Yoo Young;Yoon, Hyang-Sik;Kim, In Jae
    • The Korean Journal of Food And Nutrition
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    • v.33 no.5
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    • pp.570-575
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    • 2020
  • In this study, to develop balloon flower (Platycodon grandiflorum) leaves, which are not used as tea, a method of making green tea was referred to, and several physiological activities were analyzed using the balloon flower leaf tea with different times of roasting and rubbing. The highest total polyphenol and tannin contents were 33.02 mg GAE/g and 5.03 mg/g at two times of roasting and one time of rubbing, respectively. In the case of the total flavonoids, the RO3 + RU2, subjected to three times of roasting and two times of rubbing, showed the highest value, whereas there was no significant difference between the control and the other samples. Except for the green tea as a control, the RO2 + RU1 samples reported the highest antioxidant activity whereas it decreased with increasing number of times of roasting and rubbing. The color, lightness, and yellowness tended to decrease slightly as the number of increasing roasting and rubbing among the samples with no significant difference. All of these things together, to develop tea using the balloon flower leaves would be suitable with two times of roasting and one time of rubbing.