• 한국유기농업학회지
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• 제12권3호
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• pp.345-352
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• 2004

This study was carried out to investigate the effect of soil-born microorganism, vitabio on growth of leaf lettuce in the vinyl house. Total weights of leaf lettuce treated with vitabio showed difference compared with untreated leaf lettuce. Sugar content was also increased. Mineral contents of leaf lettuce showed no difference between treated with vitabio and untreated with vitabio. Exchange Capacity (EC) and Organic Matter (OM) in chemical properties of soil treated with vitabio showed higher than soil in untreated vitabio. Vitabio treated soil contained much more microorganisms such as Bacteria, Actinomycetes, Hyphomycetes, Bacillus sp. Pseudomonas sp. after harvest.

• 환경위생공학
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• 제18권1호
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• pp.58-67
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• 2003

The characteristics of the commercial garbage-decomposing accelerant, Raw Material of Pomia(RMP), Pomia and Vitabio. were analyzed. In HPLC pattern, Pomia and Vitabio showed main peak of about 30kDa in 280nm wave length. RMP, Pomia and Vitabio showed three, two and two peaks in 210nm. K and Na ion content of RMP were 2,620 and 1,590ppm, respectively, and their content were the largest one among others. Ca, Mg and Mn ion content of RMP were also the largest one, but Zn ion content was the least one. $Cl^{-}$, $F^{-}$ and $NO_3^{-}$ ion content of RMP were the largest one, especially $Cl^{-}$ content was 3,553ppm. pH values of RMP and Pomia were in neutral region, but Vitabio was 9.03. Dried residue content of RMP, Pomia and Vitabio were 1.4%, 0.55% and 0.4%, respectively. The number of general bacteria on PCA plate from RMP, Pomia and Vitabio were 2.2{\times}10^{6}cfu/ml,{\;}6.5{\times}10^{3}cfu/ml{\;}and{\;}1.1{\times}10^{3}cfu/ml$, respectively. The number of facultative anaerobes of RMP was $4.4{\;}{\times}{\;}10^{4}cfu/ml$, and it was biggest one. Lactobacilli and yeasts were found less than 10cfu/ml at best. The bacterium exists in RMP in high frequency was identified as Bacillus subtilis. Volatile sulfur compound amount of garbage samples treated with Pomia and Vitabio in concentration of 1/500 at $33^{\circ}C$ for 8 days were 1,273ppb and 1,902ppb, respectively, and control showed 3,015ppb. Volatile organic compound amount of the garbage samples treated were 68,312ppb, 124,317ppb and 263,954ppm, respectively. Diethylamine that known as malodor compound were 5,107ppb, 261ppb and 11,124ppb, respectively.

• 대한수의학회지
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• 제58권3호
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• pp.153-158
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• 2018

Althaea rosea has been used in traditional Chinese medicine to treat numerous diseases, but no studies have investigated its anti-influenza properties to date. In this study, we investigated the anti-influenza effects of Althaea rosea. BALB/c mice orally pretreated with Althaea rosea ($200{\mu}L$, 0.1 mg/mL concentration in phosphate-buffered saline) and followed by infection of influenza A virus nasally showed higher survivability and lower lung virus titer against divergent subtypes of influenza A virus infection. We also found that oral administration of Althaea rosea elicited antiviral innate immune responses in serum, bronchoalveolar lavage fluid, small intestinal fluid, and the lungs. Taken together, these findings suggest that aqueous extracts of Althaea rosea are a potential candidate for use as an anti-influenza drug.

• 미생물학회지
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• 제55권3호
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• pp.242-247
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• 2019

폐수 처리 설비에서 생물학적 요인은 유기물 분해 또는 제거에 필수적인 역할을 수행한다. 본 연구에서는, 폐수처리장의 미생물 기능적 역할을 이해하기 위해, 활성 슬러지 샘플로부터 박테리아 균주를 분리하고 그들의 특성 분석을 시도했다. S16 균주는 대한민국 대전광역시의 폐수처리장의 활성슬러지로 부터 분리되었다. 세포들은 그람음성, 비운동성, 통성 혐기성 그리고 막대모양이였다. S16 균주는 $15{\sim}40^{\circ}C$ (최적 $30^{\circ}C$), 0~9.0% (w/v) NaCl (최적 1.0~2.0%), pH 5.5~9.0 (최적 pH 7.0~7.5)에서 성장하였다. 분자계통학적 분석결과, S16은 Miniimonas 속의 고유종인 Miniimonas areae NBRC $106267^T$ (99.79%, 16S rRNA 유전자 염기서열 유사성)와 가장 밀접한 것으로 나타났다. 해양 미생물로 여겨지는 표준균주 NBRC $106267^T$의 분리 원은 바다 모래이지만 S16 균주는 육상 환경이다. 이는 서식지 전환에 대한 생태학적 의문을 제기할 수 있다. 따라서 비교 유전체 분석은 잠재적인 대사 특성 및 유전체 간소화를 밝히기 위한 가치있는 연구가 될 것이다.

• Journal of Microbiology and Biotechnology
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• 제26권5호
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• pp.883-890
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• 2016

Marine sediments are a microbial biosphere with an unknown physiology, and the sediments harbor numerous distinct phylogenetic lineages of Bacteria and Archaea that are at present uncultured. In this study, the structure of the archaeal and bacterial communities was investigated in the surface and subsurface sediments of Jeju Island using a next-generation sequencing method. The microbial communities in the surface sediments were distinct from those in the subsurface sediments; the relative abundance of sequences for Thaumarchaeota, Actinobacteria, Bacteroides, Alphaproteobacteria, and Gammaproteobacteria were higher in the surface than subsurface sediments, whereas the sequences for Euryarchaeota, Acidobacteria, Firmicutes, and Deltaproteobacteria were relatively more abundant in the subsurface than surface sediments. This study presents detailed characterization of the spatial distribution of benthic microbial communities of Jeju Island and provides fundamental information on the potential interactions mediated by microorganisms with the different biogeochemical cycles in coastal sediments.