• Title/Summary/Keyword: Bio Venture

Search Result 162, Processing Time 0.023 seconds

Antifungal Activity of Bacillus sp. Against Phytophthora infestans

  • Kim Hye-Sook;Yi Yong-Sub;Choi Gyung-Ja;Cho Kwang-Yun;Lim Yoong-Ho
    • Journal of Microbiology and Biotechnology
    • /
    • v.16 no.3
    • /
    • pp.487-490
    • /
    • 2006
  • Because of consumer rejection of chemical pesticides and the appearance of microorganisms that are resistant to fungicides, we tried to discover biopesticides. Of 13 microorganisms isolated from Shrimp-jeotkal, a Bacillus sp. showed strong activity against tomato late blight caused by Phytophthora infestans. Its activity was tested both in vivo and in vitro. The identification of the strain was carried out based on 16S rDNA analysis and the morphology by scanning electron microscopy.

An Antifungal Activity of Streptomyces sp. against Cryphonectria parasitica

  • Lee, Sang-Hyun;Kim, Kyung-Hee;Lee, Jae-Pil;Yi, Yong-Sub;Kim, Hye-Sook;Lim, Yoong-Ho
    • Journal of Applied Biological Chemistry
    • /
    • v.48 no.4
    • /
    • pp.222-225
    • /
    • 2005
  • Strains showing antifungal activity against Cryphonectria parasitica were isolated from coast soil of Taean , Korea. Of 152 strains isolated, 6 strains showed antifungal activity in vitro against C. parasitica. Ta24 strain showed highest activity with 1.6 cm clean inhibition zone. For strain identification, the morphological characteristic and 16S rDNA sequences were determined. Ta24 strain showed 99% homology with Streptomyces sampsonii and was identified as Streptomyces sp.

Economical Efficiency of Thermal Tunnel Using Automatic Rolling Shutter (비닐권취용 자동셔터를 이용한 보온터널의 경제성)

  • Yoo, Young-Sun;Kang, Geum-Chun;Kim, Young-Joong;Baek, Yi;Jang, Chun-Hwan
    • Proceedings of the Korean Society for Bio-Environment Control Conference
    • /
    • 2002.11a
    • /
    • pp.298-305
    • /
    • 2002
  • 우리나라의 시설농업을 고부가가치 산업으로 발전시키기 위해서는 우선 우수한 품종의 육성과 효율적인 재배관리기술의 개발이 이루어져야 하며, 그 다음으로는 노력비, 난방비 등의 절감을 위한 기계기술의 개발이 뒤따라야 한다. 시설재배 농민의 대부분이 고령화되고 있으며, 난방비가 생산비의 20-40%를 차지하고 있는 실정을 고려한다면 노동력과 난방비 절감기술의 개발은 동시에 이루어져야 할 과제라 할 수 있다. (중략)

  • PDF

Location Decisions of Startups and Dynamics of Cluster Growth (기업가의 창업위치선택과 클러스터의 성장동력: 바이오벤처의 창업을 중심으로)

  • Sohn, Dong-Won
    • Journal of Technology Innovation
    • /
    • v.17 no.1
    • /
    • pp.69-95
    • /
    • 2009
  • This paper examines the motives for location decisions of startups and dynamics of cluster growth. Because the location decision is intrinsically strategic choice by entrepreneurs, it is an interplay of three critical forces; cost-benefit of the choice, R&D ability of new entrants, and R&D capability of incumbents in clusters. The effect of knowledge spillovers influences the cluster growth like a double-edge sword; both a positive effect of technology learning and a negative effect of knowledge de-learning. Using data on 710 bio-tech venture firms in Korea, this paper tests the hypotheses about the factors influencing the growth of the cluster. The empirical analyses suggested that early entrepreneurial activity in the clustered regions were important, however other factors such as the organizational legacy, internal dynamics inside a cluster, and the existence of cooperation norm in the cluster, affected long term viability of the cluster.

  • PDF

A Commensal Thermophile, Symbiobacterium toebii: Distribution, Characterization, and Genome Analysis

  • Bae Jin-Woo;Kim Kwang;Song Jae Jun;Ha Jae Seok;Kim Joong-Jae;Kang Gwan-Tae;Kim Mi-Hwa;Hong Seung-Pyo;Sung Moon-Hee
    • Proceedings of the Microbiological Society of Korea Conference
    • /
    • 2001.11a
    • /
    • pp.46-53
    • /
    • 2001
  • A commensal thermophile, Symbiobacterium toebii, isolated from hay compost (toebii) in Korea commensally interacted with a thermophilic Geobacillus toebii sp. nov., which was a new species within the genus Geobacillus on the basis of the phenotypic traits and molecular systematic data. S. toebii required the crude extracts and/or culture supernatant of the Geobacillus toebii for axenic growth and could grow on the temperature between 45 and $70^{\circ}C$ (optimum: $60^{\circ}C$; 2.4 h doubling time) and pH 6.0 and 9.0 (optimum: pH 7.5). The G+C content of the genomic DNA was $65 mol\%$, and the major quinones were MK-6 and MK-7. A phylogenetic analysis of its 16S rDNA sequence indicated that Symbiobacterium toebii was closely related with solely reported Symbiobacterium thermophilum. The presence of the commensal thermophile 16S rDNA and accumulation of indole in all the enriched cultures indicate that Symbiobacterium toebii is widely distributed in the various soils. The genome of S. toebii constituted a circular chromosome of 3,280,275 base pairs and there was not an extra-chromosomal element (ECE). It contained about 4,107 predicted coding sequences. Of these protein coding genes, about $45.6\%$ was encoded well-known proteins and annotated the functional assignment of 1,874 open reading frames (ORFs), and the rest predicted to have unknown functions. The genes encoding thermostable tyrosine phenol-lyase and tryptophan indole-lyase were cloned from the genomic DNA of S. toebii and the enzymatic production of L-tyrosine and L-tryptophan was carried out with two thermostable enzymes overexpressed in recombinant E. coli.

  • PDF

Diffusion of Innovations for Bio-technology Ventures (생명공학 혁신의 시장확산 -Venture 기업을 중심으로-)

  • Lee, Kyu-Hyun
    • Journal of Global Scholars of Marketing Science
    • /
    • v.8
    • /
    • pp.515-535
    • /
    • 2001
  • This paper begins with investigation of the race to unlock human DNA, and investigates the emergent areas of bio-technological innovations. This paper draws upon basic ideas from the research traditions of the diffusion of innovations in the competitive situations. To achieve the succesful diffusion of bio-technological innovations, following issues are suggested; clusters, alliances competence, core competence, consumer resistance, chasm phenomena, qualitative research, social network, and cross-culture. The better understanding of the diffusion of bio-tech innovations with empirical studies can complement research on the diffusion of bio-technological innovations and help in the development of a universal model for diffusion of high technological innovations.

  • PDF

A Study on Enhancing Managerial Performance of Business Incubators and Developing Differentiation Strategy (비즈니스 인큐베이터의 경영 성과 향상 및 차별화 전략 수립에 대한 연구)

  • SEO, Dayoon;Bae, SungUk;BAE, SungMin
    • Journal of Korean Society for Quality Management
    • /
    • v.45 no.3
    • /
    • pp.463-481
    • /
    • 2017
  • Purpose: This study provide the matching mechanism between startup and business incubator to enhance managerial performance of business incubator. In addition, we propose the differentiation strategy for business incubator based on the needs of startups. Methods: In order to carry out the research, we surveyed 216 startups who already have invested in venture capitals and angel investors and currently residing in business incubator and 30 venture capitals and angel investors. Based on survey results, we develop a business incubator capability table matching startup with business incubator. Results: Satisfaction and importance of the supporting programs varied depending on the startup experience and startup lifecycle. As a result, we recommended a R&D center for machinery/material, bio/medical and electric/electronics startups and individual office for ICT and knowledge service startups. In addition, we suggested a differentiation strategy to BI in university specialized for machinery/material, privately operated BI for electric/electronic, (local)government, R&D center and individual office for knowledge service respectively. Conclusion: In this study, business incubator capability table is applied to match startup with business incubator and it could be applied to evaluate the current status of business incubator. Furthermore, it will help to establish a future strategic direction for business incubator.