• Title/Summary/Keyword: Preservation condition

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Effects of Salt Concentration on the Rehydration Characteristics of Freeze Dried Mook (재수화용액의 염농도에 따른 동결건초 도토리 묵의 재수화 특성)

  • 윤광섭;황정섭;정헌식;양경미
    • Food Science and Preservation
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    • v.8 no.3
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    • pp.313-319
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    • 2001
  • In order to produce the high quality rehydrated acorn Mook(Korean tradition gel flood) that enhance acceptability, the optimum condition was investigated for the rehydration process of dried Monk as salt concentration(0, 1, 2%), temperature(20, 70, 80, 90$^{\circ}C$) and time. The estimation of moisture gain, rehydration efficiency was analyzed statistically. The surface color md seniory evaluation were undertaken to evaluate the rehydrated Mook quality The optimum rehydration time was decided to 15 minutes and it takes 3 minutes for the cooling tilde. The moisture gain increased as the rehydration temperature increase. And the moisture gain and moisture gain rate were higher at 1% salt solution than other concentration. As the rehydration efficiency, surface color and sensory properties of rehydrated Mook, 1% salt treatment was superior.

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Quality Characteristics and Manufacture of Mulberry Wine (오디 와인 제조 및 품질특성)

  • Jung Gi-Tai;Ju In-Ok;Choi Dong-Geun
    • Food Science and Preservation
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    • v.12 no.1
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    • pp.90-94
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    • 2005
  • To poodnce a value added of mulberry, this study was optimized the condition for manufacture of wine using mulberry. On fermentation of mulberry wine, the best yeasts were Saccharomyces cerevisiae JBS 30 and JBS 33, and optimum composition of medium was crushed mulberry juice of $50\%$, sugar of $24\;^{\circ}brix,\;Na_2S_2O_5\;of\;0.02\%$. The content of alcohol after fermentation of 10 days at $25^{\circ}C$ was $11.2\%$. Sensory evaluation showed that color, taste and odor of mulberry wine were acceptable, and Saccharomyces cerevisiae JBS 30 was not difference compared to JBS 33.

Screening and Characterization of $\alpha$-Amylase Inhibitors from Cereals and Legumes in Korea (한국산 곡류와 두류 중 $\alpha$-Amylase 저해물질의 검색 및 특성)

  • Sim, Gi-Hwan;Bae, Yeong-Il;Mun, Ju-Seok
    • Food Science and Preservation
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    • v.1 no.2
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    • pp.117-124
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    • 1994
  • To investigate characterization of the ${\alpha}$-amylase inhibitors from cereals and legumes produced in Korea, inhibitory activities against ${\alpha}$-amylase with the inhibitor from barley(Hordeum vulgare), wheat(Triticum aestivun), black bean(Glycine max), bean(Cajanus cajon) and pea(Pisum sativum) were measured. Among the samples tested, inhibitors from naked barley and black bean(sabong) which showed the highest inhibitor activities of cereals and legumes, respectively, were characterized according to treatment condition. The results obtained were summarized as follows. During the germination of naked barley and black bean, ${\alpha}$-amylase activities were gradually increased but inhibitory activities against ${\alpha}$-amylases were decreased. Both activities were gradually decreased when naked barley and black bean were stored. More than 50% of activities of the inhibitors from naked barley and black bean were remained at 100$^{\circ}C$ for 15 min and 20 min, respectively, indicating that the inhibitor from black bean was more stable to heat than that of barley.

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The Study on the Contents of Domestic Dam Exhibition Hails and the Characteristics of Applied Media (국내 댐 전시관 컨텐츠와 매체 특성에 관한 연구)

  • Yi, Joo-Hyoung
    • Korean Institute of Interior Design Journal
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    • v.18 no.3
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    • pp.93-101
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    • 2009
  • Nowadays, the constructions of dams are being issued by the public due to the preservation and protection of nature considered more important than development. These social phenomenon can not be evitable due to arguing the both attitudes, preservation and development of nature. However, There are possibilities to make an agreement with the compromise between the two sides. The common goals of the attitudes are concerning human beings and their life quality. In this atmosphere, the exhibition hall of dams is very important to lead the agreement of both groups because the spaces not only provide contents to compromise by showing positive factors of dams, but present condition of using water as natural resources. The purpose of this study is based on the effect of the applied media in an exhibition hall as presenting education and enlightenment factors. To examine the effect, this study categorizes the existing media by communication types firstly. Secondly, based on the categorization, existing media of each dam exhibition hall are analyzed by numerical way. Thirdly, the general characteristics of applied media are defined by integrating the spatial contents and media. The data from the study are effective to provide the basic data for following design works for the exhibition space.

The Optimal Producing Conditions of Bacteriocin Produced by Lactobacillus sp. FF-3 Isolated from Korean Dongchimi (동치미에서 분리한 Lactobacillus sp. FF-3가 생산하는 bacteriocin의 최적 생산조건)

  • 박진철;차재영;권오창;조영수
    • Food Science and Preservation
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    • v.10 no.4
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    • pp.554-559
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    • 2003
  • The optimal culture conditions on bacteriocin producing of Lactobacillus sp. FF-3 isolated from Korean Dongchimi, were studied for enhancing its production with regard to environmental and nutritional factors. The optimal cultivation time, initial pH and temperature were 21 hours, pH 7.0 and 30∼37$^{\circ}C$ respectively. Optimal compositions of culture medium for bacteriocin production were glucose 3% as carbon source, tryptone 4% as nitrogen source, and manganese sulfate 0.005% as inorganic salt with other basal components. The maximum antimicrobial activity was 484 BU/mL under the optimal culture condition.

A Study on Environmental Tolerances of Yeast (효모의 환경내성에 대하여 1)

  • 임억규;정영호;김준호
    • Korean Journal of Microbiology
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    • v.16 no.3
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    • pp.93-102
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    • 1978
  • Saccharomyces cerevisiae strain M was cultured in a molasses-containing media with repeated transplantations of the yeasts from one culture to another to adapt to molasses. After that only different amounts of phosphorous and nitrogen sources were added to the media. And then some variations during the culture time and the effects of consituents of cell mass on the functional activity and sensitivity of the cell were investigated. The results obtained were summarized as follows : 1. In the same culture condition of yeasts, the carbohydrates and trehaloses contents were more remarkably increased when small amounts of phosphate and nitrogen sources were added, then when alrge amounts were added, but yield percentage on assimilated sugars was lower. 2. The content of trehalose in yeast cells was reduced remarkably at the early stage in the culture, but this increased remarkably at later stage. When small amounts of nitrogen and phosphate were added to the culture medium, the amount of thehalose in the cells increased greasly. 3. The more protein content was present in the yeast cells, the smaller the carbohydrate and trehalose content, but more amino-N, RNA and moisture content were present in the cells. And in this case fermentability of the cells was stronger, but sugar tolerance was lower. 4. During the preservation period of compressed yeast cells at different temperature, the higher the temperature was, the more rapidly the amount of trehalose in the cells decreased. And in the cell where the amount of trehalose in the cells decreased. And in the cell where the amount of trehalose(carbohydrate) was large and the amount of protein was small, the amount of trehalose decreased at a slower rate during the preservation period.

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A Study on the Deformation of Folk Village (전통민속마을의 주거변형실태에 관한 연구 - 낙안민속마을을 중심으로 -)

  • Park, Ik-Soo
    • Journal of the Korean Institute of Rural Architecture
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    • v.6 no.3
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    • pp.63-74
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    • 2004
  • This study is focusing on the Nagan Folk Village, primarily because of its historical and cultural values. The purpose of this study, accordingly, analysis the fact of the dwelling change through spot-survey and case-investigation, and is to find a way to improve for the rational preservation of the traditional dwelling analyzing on the actual condition and the reason for such changes in the Nakan Folk Village. The dwelling change is stemmed from the physical factors, and some modifications of internal composition, exterior formation, building equipment. As a result, The changes of internal composition are included in the reduction of garnering room, the enlargement of bed/service room, the establishment of mechanical room. The changes of exterior formation with structural material are included in the glass door for the internalization of 'TOEMARU', the extra glass door for the brightening of room, the cement plastering for the endurance of wall. The changes of building equipment are included in the establishment of oil-boiler, wash closet, sink for convenient life All houses should be graded on their qualitative value, managed in a cycle. And its own criterion for acceptable deformations should be established.

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Studies on the Optimal Culture Condition for Production of Red Pigments by Monascus rubber on Liquid Culture (액체배양에 의한 Monascus rubber의 적색 색소 생산을 위한 최적 배양조건에 관한 연구)

  • 서승교;이창호;우철주
    • Food Science and Preservation
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    • v.11 no.1
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    • pp.111-116
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    • 2004
  • The optimum cultural conditions for production of red pigment from Monascus rubber KCTC 6122 is liquid culture were studied. Monascus robber KCTC 6122 was shown to give the maximum production of red pigment in the medium containing 4% rice powder, 0.2% NaNO$_3$, 0.3% Na$_2$HP0$_4$ and 0.15% MgSO$_4$. The optimum culture conditions, temperature, initial pH and shaking speed were 30$^{\circ}C$, 6.5 and 150 rpm, respectively. The red pigment production reached a maximum level at 8days of cultivation.

Optimum Condition for Removing Bitter Substance of Yuzu(Citrus junos) by Enzyme Treatment (효소처리에 의한 유자 고미성분 제거의 최적 조건 연구)

  • 김용두;김경제
    • Food Science and Preservation
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    • v.11 no.1
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    • pp.53-56
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    • 2004
  • The content of naringin and hesperidin of Yuzu were 95.54 and 103.99 in peel ; 65.77 and 77.18 in flesh ; 16.49 and 15.88mg% in seed, respectively. When 10 mg% of naringin and 5 mg% hesperidin were treated with 10.0 units naringinase and 2.0 units of hesperidinase, they were decreased to 0.11 and 0.45 mg%, respectively. One percent of Japanese naringinase digested naringin and hesperidin that their final concentration were 0.54 and 0.09 mg% in 30 minutes, while 5% Amorepacific enzyme did until 0.26 and 0.04 mg%, respectively.

Strategies for Minimizing Forest Disturbance During the Construction of Power Transmission Towers (송전선로 건설에 따른 산림훼손의 최소화 관리방안)

  • 이동근;강현경
    • Journal of the Korean Institute of Landscape Architecture
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    • v.30 no.6
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    • pp.66-78
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    • 2003
  • The purpose of this study was to minimize the forest disturbance around an entry road of a power transmission tower construction site between Taean and Sinsesan, Chungnam. The main study field was classified into existing materials and a GIS, remote sensing analysis, and a field examination. This information was used to identify the most suitable entry road using a degree of green naturality map, eco-naturality map, actual vegetation map, and a forest state map as the existing materials. Also, the study used an normalized difference vegetation index, altitude and slope map in order to make the evaluation materials which used an remote sensing image, and GIS. This data was used to choose an optimum area, and diagnosed the current condition of the vegetation with a field survey of the area. It analyzed vegetation structure, species diversity, the age of trees in a field examination. Subsequently, we proposed four area types based on the analysis results--preservation area, transplantation area, restoration area and development area. As a result, the preservation area was categorized into 8 grades, according to the degree of green naturality, large area of breast diameter at Pinus densiflora community, competition area of Pinus densiflora and Quercus spp. and Quercus spp. community of over 20 years old. A transplantation area established 46 optimum areas according to the GIS analysis and vegetation investigation results. Vegetation restoration plan for disturbance area should be made based on ecological value of existing vegetation to worthwhile area as Quercus spp. mixing forest proposed. The development area selected a ecological worthless place as an artificial forest where Pinus densiflora and Pinus thunbergii growth is poor. This research results suggest that restoration of vegetation will be possible in the real world. Also, ecological restoration guidelines will be made through building and analyzing data base and routine monitoring of transplantation and restoration area.