• 제목/요약/키워드: Mass culture

검색결과 1,711건 처리시간 0.029초

Enhanced production in recycle fed-batch cultivation by Lactic acid bacteria Isolated from Kimchi

  • Joe, Lim;Kwun, Kyu-Hyuk;Chang, Hae-Choon;Lee, Jung-Heon
    • 한국생물공학회:학술대회논문집
    • /
    • 한국생물공학회 2005년도 생물공학의 동향(XVII)
    • /
    • pp.312-315
    • /
    • 2005
  • A process for efficient recycle fed-batch culture was carried out to increase cell mass and spore production by Lactic acid bacteria isolated from Kimchi. A large quantity of cell mass obtained by feeding concentration of sugar in recycle fed-batch culture. When the high density of salt was created that the cell mass was come-down. In this study, cultured in different feeding concentration of sugar conditions. Lactic acid bacteria by recycle fed-batch culture was investigated in 2L working volume of fermenter, obtained the maximum cell mass was 15.17g/L.

  • PDF

Mass Customization in the Apparel Industry using New Technologies

  • Kim, Jungeun;Lee, Khmhee
    • The International Journal of Costume Culture
    • /
    • 제5권1호
    • /
    • pp.14-25
    • /
    • 2002
  • The purpose of this study is to define mass customization in the apparel industry and to discover, the apparel industry's potential to deliver customized apparel products. Different from product-centered mass Production, mass customization is focusing on customers' unique needs. The goal of mass customization is for customers to find exactly what they want at a reasonable price. Using new technologies such as 3-D body scanning and digital printing, mass customization can give customers customfit and personalized garments. Mass customization can satisfy a customer in terms of personalization, fit and design. Adoption of mass customization will open new opportunities for the apparel manufacturer of the future. Mass customization is a strategy that apparel manufacturers should consider for their goals.

  • PDF

High-Cell-Density Fed-Batch Culture of Saccharomyces cerevisiae KV-25 Using Molasses and Corn Steep Liquor

  • Vu, Van Hanh;Kim, Keun
    • Journal of Microbiology and Biotechnology
    • /
    • 제19권12호
    • /
    • pp.1603-1611
    • /
    • 2009
  • High-cell-density cultivation of yeast was investigated using the agricultural waste products corn steep liquor (CSL) and molasses. The Saccharomyces cerevisiae KV-25 cell mass was significantly dependent on the ratio between C and N sources. The concentrations of molasses and CSL in the culture medium were statistically optimized at 10.25% (v/v) and 16.87% (v/v), respectively, by response surface methodology (RSM). Batch culture in a 5-l stirred tank reactor using the optimized medium resulted in a cell mass production of 36.5 g/l. In the fed-batch culture, the feed phase was preceded by a batch phase using the optimized medium, and a very high dried-cell-mass yield of 187.63 g/l was successfully attained by feeding a mixture of 20% (v/v) molasses and 80% (v/v) CSL at a rate of 22 ml/h. In this system, the production of cell mass depended mainly on the agitation speed, the composition of the feed medium, and the glucose level in the medium, but only slightly on the aeration rate.

Street Style의 미적 의미에 대한 연구 (A Study for Aethetic Meaning in Street Style)

  • 이은영
    • 자연과학논문집
    • /
    • 제9권1호
    • /
    • pp.113-129
    • /
    • 1997
  • 포스트모던 스타일은 현대유행에서 여러 가지로 보여진다. 특히 거리스타일은 테디보이즈, 모즈, 히피, 스킨헤드와 대중유행에서 시작된다. 대중문화는 현대사회에서 여러 가지 방식으로 두드러지고 있다. 음악 연극, 영화에서 젊은이들의 생각을 읽을 수 있는데, 거리스타일은 그들의 공포와 저항 그리고 그들의 열정이 담겨져 있다. 스트리트 스타일의 미학은 대중문화의 미학은 대중문학의 미학에서 다음과 같이 보여진다. ${\cdot}$ 해학과 감상이 원시주의에 ${\cdot}$ 선정성은 비비안 웨스트우드나 잔드라로즈의 작품에서 보여지는 것 같은 에로티즘에 ${\cdot}$ 환상성은 사이버 사이키델릭 패션 속에 표현되어 진다.

  • PDF

갈조류 감태 (Ecklonia cava Kjellman)의 대량양식을 위한 가이식 및 양성 조건 (Nursery and Main Culture Conditions for Mass Cultivation of the Brown Alga, Ecklonia cava Kjellman)

  • 황은경;공용근;하동수;박찬선
    • 한국수산과학회지
    • /
    • 제43권6호
    • /
    • pp.687-692
    • /
    • 2010
  • The mass cultivation of Ecklonia cava Kjellman was studied as a potential biomass source for the extract industry in Korea. Experiments were conducted to investigate the optimal conditions for artificial seed production and mass cultivation of this species. Maximum growth and young thalli development in the nursery culture area occurred at 2 m depth, whereas maximum growth of thalli in the main culture area occurred at 1 m depth. Production of E. cava was between 2.6 and 3.6 kg wet wt. $m^{-1}$ after depth control and removal of fouling organism, etc. The relationship between optimal water depth for culture and underwater irradiance during the E. cava cultivation was calculated as: y = -0.718x + 8.042 ($r^2$=0.976). The growth rates achieved in this trial indicate that E. cava cultures could produce and supply sufficient biomass.

Optimization of Culture Medium for Lactosucrose ($^4G-{\beta}$-D-Galactosylsucrose) Production by Sterigmatomyces elviae Mutant Using Statistical Analysis

  • Lee, Jong-Ho;Lim, Jung-Soo;Song, Yoon-Seok;Kang, Seong-Woo;Prak, Chul-Hwan;Kim, Seung-Wook
    • Journal of Microbiology and Biotechnology
    • /
    • 제17권12호
    • /
    • pp.1996-2004
    • /
    • 2007
  • In this study, the optimization of culture medium using a Sterigmatomyces elviae mutant was investigated using statistical analysis to increase the cell mass and lactosucrose ($^4G-{\beta}$-D-galactosylsucrose) production. In basal medium, the cell mass and lactosucrose production were 4.12 g/l and 140.91 g/l, respectively. However, because of the low cell mass and lactosucrose production, optimization of culture medium was carried out to increase the cell mass and lactosucrose production. Culture media were optimized by the S. elviae mutant using analysis of variance (ANOVA) and response surface methodology (RSM). Central composite designs using RSM were utilized in this investigation. Quadratic models were obtained for cell mass and lactosucrose production. In the case of cell mass, optimal components of the medium were as follows: sucrose 1.13%, yeast extract 0.99%, bactopeptone 2.96%, and ammonium sulfate 0.40%. The predicted maximum value of cell mass was about 5.20 g/l and its experimental value was 5.08 g/l. In the case of lactosucrose production, optimal components of the medium were as follows: sucrose 0.96%, yeast extract 1.2%, bactopeptone 3.0%, and ammonium sulfate 0.48%. Then, the predicted maximum value of lactosucrose production was about 194.12 g/l and the corresponding experimental value was about 183.78 g/l. Therefore, by culturing using predicted conditions, the real cell mass and lactosucrose production increased to 23.3% and 30.42%, respectively.

환수율 및 접종밀도에 따른 초소형 rotifer, Synchaeta kitina의 대량배양 (Mass Culture of Ultra-small Rotifer, Synchaeta kitina at the Exchange Rate of Culture Water and Initial Inoculation Density)

  • 오정수;박진철;박흠기
    • 한국수산과학회지
    • /
    • 제42권4호
    • /
    • pp.354-359
    • /
    • 2009
  • The productivity of ultra-small rotifer, Synchaeta kitina was investigated at the exchange rate of culture water (10, 20, 30, 40 and 50%) and initial inoculation densities (250, 600 and 900 inds. per mL) in semi-continuous culture. Also, the possibility of mass culture was investigated in a 100 L culture tank. Tetraselmis suecica was used as the feed for S. kitina in all experiments. The production of S. kitina increased with an increase in exchange rate of culture water. The highest production ($82.0{\times}10^5$ inds.) was achieved at 40% exchange rate of culture water. The production of S. kitina increased with an increase of initial inoculation density during the first week and the highest total production ($17.4{\times}10^6$ inds.) was achieved at 900 inds. per mL of initial inoculation density. However, on the second week, all treatments were not significantly different in total production (P>0.05). During the two weeks, total production of S. kitina at 900 inds. per mL of initial inoculation density was higher than at 600 inds. of initial inoculation density, but there was no significant difference (P>0.05). In the 100 L culture tank, density of S. kitina was kept from 516 to 890 inds. per mL and S. kitina was daily harvested $15.5{\times}10^6$ to $26.7{\times}10^6$ during the experimental period. The production cost for 100 million rotifers in semi-continuous culture was 63,656 won. The results from this study indicate that the optimal exchange rate of culture water and initial inoculation density for the semi-continuous culture of ultra-small rotifer, S. kitina are 40% and 600 inds. per mL, respectively.

한국의 대중문화에 Animation Character가 미치는 부정적인 영향 (A Negative Effect of Animation Character in Mass Culture of Korea)

  • 김홍산;신정숙
    • 디자인학연구
    • /
    • 제14권2호
    • /
    • pp.147-154
    • /
    • 2001
  • 애니메이션 캐릭터는 아이디어 지향의 고 부가가치 산업으로 다양한 시너지 효과를 창출하기 때문에 경제적인 측면만으로도 그 가치가 높다. 무엇보다도 애니메이션 캐릭터의 가치는 대중문화 커뮤니케이터로서의 역할에 있다. 애니메이션 캐릭터의 범람속에서 생활하는 대중들은 캐릭터에 의해 표현되는 다양한 성격과 행동에 영향받고 있다. 그러나 범람이라고 할만큼 대중의 생활을 둘러싸고 있는 애니메이션 캐릭터들의 성격과 행동들은 주로 극단적인 성향을 나타내고 있어, 대중사회의 유지와 존속에 필요한 역할모델의 제시에 부정적인 기능을 하고 있다.

  • PDF

해산 로티퍼 대량 배양 수조에서 관찰되는 코페포다의 혼재 양상 (Observation of Co-Existing Copepods in the Marine Rotifer Mass Culture Tanks)

  • 정민민;김효원;허준욱;김정;강경호
    • 한국해양바이오학회지
    • /
    • 제9권2호
    • /
    • pp.30-34
    • /
    • 2017
  • Microorganisms are contained filtered sea water that is why we often observed co-existing copepod species in the large-scale rotifer culture tanks. In this study, we investigated about taxonomical study of co-existing copepods in Brachionus rotifer mass culture tanks of several seafarming centers at Jeju-do and Pusan, Korea by microscope. Also, we counted number of copeods and density in 10 mL of cultured sea water and distinguished growing patterns and sex. As results, we can identified 4 species copepods, 2 species of Tisbe, 1 species of Tigriopus and 1 species of Apocyclops.

애니메이션 캐릭터가 청소년에게 미치는 영향에 관한 연구 (A Fluence of Animation Character on the Youth)

  • 김홍산;신정숙
    • 디자인학연구
    • /
    • 제13권1호
    • /
    • pp.179-186
    • /
    • 2000
  • 애니메이션 캐릭터는 대중문화의 한 요소가 아닌 대중문화를 이끌어 가는 하나의 장르가 되었다. 다양한 매체를 통해 접하게 되는 애니메이션 캐릭터는 그 영향력이 종류와 형태만큼이나 다양하고 놀랄만하다. 캐릭터와 함께 성장해 온 청소년들은 캐릭터의 다양한 성격과 행동에 지배받고 영향받고 있다. 그 결과, 다양한 경험을 습득한다라기 보다는 허황된 꿈을 추구하게 되고, 서구 지향적이 되며, 전통문화를 경멸하게 된다. 또한 유희적이고 폭력적이며 쾌락주의적인 만족을 청소년들로 하여금 마약처럼 중독시키고 있다.

  • PDF