• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 2003.10a
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• pp.200.2-201
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• 2003

본 연구에서는 생약재를 사용하여 부패에 관여하는 5종의 곰팡이(Aspergillus niger, Mucor miehei, Penicillium rugullosum, Aspergillus oryzae, Trichoderma reesei)에 대한 항 곰팡이 활성을 탐색하였다. 생약재의 물 추출물과 70% ethanol 추출물을 사용하여 5종의 곰팡이에 대한 항 곰팡이 활성을 측정한 결과, 물 추출물의 경우 갈근 추출물과 황련추출물에서 항 곰팡이 활성이 우수한 것으로 나타났다. 갈근 물 추출물은 A. niger, M. miehei, P. rugullosum의 3가지 균종에 대해서 모두 높은 항 곰팡이 활성을 나타냈으며, 황련 물 추출물은 M. miehei의 균종에 대해서 높은 항 곰팡이 활성을 나타내었다. 70% ethanol 추출물의 항 곰팡이 실험 결과, 물 추출물보다 좋은 항 곰팡이 활성을 나타내었다. 특히, 계피의 70% ethanol 추출물에서는 A. niger, M. miehei, P. rugullosum, A. oryzae, T reesei의 5가지 균종에서 모두 우수한 항 곰팡이 활성을 나타냈으며, 이 외에도 감초의 70% ethanol 추출물에서는 A. niger균주에 대해, 육두구와 호장근 및 황련의 70% ethanol 추출물에서는 M miehei 균주에 대해 우수한 항 곰팡이 활성을 나타냈으며, 또한 초두구의 70% ethanol추출물에서는 T reesei 균주에 대해 좋은 항 곰팡이 활성을 나타내었다. 항 곰팡이 효능이 우수한 생약재를 선별하고 이들 생약재로부터 추출한 다양한 획분을 사용하여 농도별로 항 곰팡이 활성을 조사한 결과, 갈근의 물 추출물의 경우에는 4가지 균종에서 모두 높은 항균활성을 나타냈으며, 낮은 농도에서도 높은 항 곰팡이 활성을 나타내었다. 이 외에도 황련의 물 추출물은 M. miehei 균주에서 우수한 항 곰팡이 활성을 나타내었다. 생약재의 70% Ethanol추출물을 농도별로 제조하여 항 곰팡이 활성을 살펴 본 결과, 70% ethanol추출물에서는 계피와 파고지, 초두구, 황련이 항 곰팡이 활성이 우수하였으며, 특히 계피의 70% ethanol 추출물에서는 5가지 균종에서 모두 우수한 항 곰팡이 활성이 나타났다.

• Journal of the Korea Concrete Institute
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• v.27 no.1
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• pp.75-83
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• 2015

This study discusses the long-term antifungal effect and antifungal performance of Hwangtoh mortars with various natural antifungal substances on five types of mold: Chaetomium globosum, Aspergillus niger, Aureobasidium pullulans, Gliocladium virens, and Penicillium pinophilum, which can be easily detected in the indoors and outdoors of buildings in damp environments. The antifungal performances of various natural antifungal substances extracted from Marjoram, Phytoncide, Thyme, Ginkgo leaves, and Chitosan (oligosaccharide) were investigated on the five types of mold, as a basic experiment. Using the natural antifungal substances selected for the basic experiment, antifungal mortars were made, and their antifungal performance and long-term antifungal effects were also investigated. The results clearly showed that the marjoram extract and their associated mortars had excellent antifungal performance. Also, their long-term antifungal effects were outstanding and at an equivalent level to those of the mortars with organic chemical antifungal agents. The optimum addition rate of the marjoram extract in the mortar was 5% by mass of binder. It was also shown that the phytoncide extract in the mortar needed an addition rate of more than 10% according to the mass of binder, considering the long-term antifungal effect and the antifungal performance.

• Journal of Sericultural and Entomological Science
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• v.48 no.2
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• pp.68-72
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• 2006

The hemolmyph and whole body of insect, Bombyx mori, Allomyrina dichotoma and Neotocia brevitarsi, conspicuously inhibited the mycelial growth of several plant pathogenic fungi. The hemolymph of 1087 strain among the 16 strains of B. mori has inhibition activities against the 3 species of fungi, Alternaria panax, Collctotrichum gloeosporioides, and Pyricularia oryzae. The whole body of B. mori was more effective than the hemolymph as a inhibitor on fungi growth. The antifungal activity of B. mori was variable to the fungi species. In addition, A. dichotoma and N. brevitarsi showed antifungal activities against the same fungi as did B. mori. These data showed that the insect has potent antifungal activity. Whereas, the level of activities were differ according to the fungal species. This finding underlines that the possibility of the insect can be use of the agent as a inhibitor against the plant pathogenic fungi.

• Journal of the Korean Recycled Construction Resources Institute
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• v.10 no.1
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• pp.117-123
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• 2022

Recently, due to COV ID-19, many people are spending most of their time indoors. So, there is a rising interest on the indoor air quality in the field of building construction. The main sources for the indoor air pollution are human indoors activity, building materials, living supplies and the polluted air from outdoor. The Korean government has designated 17 indoor air pollutants including fine dust, total airborne bacteria, fungi and carbon dioxide, etc.. Most people are always exposed to assorted bacteria and molds in our daily life, because indoor environment for human, moderate temperature are humidity, it is favourable to the growth of most of bacteria and fungi. Pine needles have an antibacterial effect against bacteria and fungi. In this study, the antibacterial activity against bacteria and fungi was tested by cement matrix using pine needle extract. As a result, the cement matrix using pine needle extract showed antibacterial activities against bacteria, but in the case of fungi, it did not show antifungal activity.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.24 no.3
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• pp.193-202
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• 1991

Antimicrobial substances were screened by paper disk plate method in marine sponges, Halichondria okadai, Halichendria sp., H iaponica and Haliclona Pemollis, collected from the south coast of Korea. Antibacterial components were detected in two species, H okadai and Halichondria sp.. Three components such as benzoic acid, okadaic acid(OA) and dinophysistoxin-1(DTX1) were identified from these sponges as the antimicrobial compounds by MS and NMR spectral data. OA$(550{\~}600{\mu}g/kg)$ and $(400{\~}490{\mu}g/kg)$ were determined from the wet H okadai and Halichondria sp., respectively, by using fluorometric HPLC analysis with 9-anthryldiazomethane(ADAM) as fluorescent labelling reagent.

• Journal of Life Science
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• v.17 no.9 s.89
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• pp.1294-1297
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• 2007

To define diversity of domestic radish, we analysis genetic relationship of anti-fungal protein genes from several domestic radish (Raphanus sativus L.) seeds. We have isolated from domestic radish (Baekwoon) anti-fungal protein named RAP[12]. In this report, we isolate RNAs and raw protein from radish seeds then, RT-PCR analysis was done with another known anti-fungal sequences of radish from Gene Bank/EMBL and anti-fun- gal, anti-yeast activity were done against Bot교tis cenerea, Saccharomyces cerevisiaeι Candida albicans with it's raw proteins. The anti-fungal activity was shown used all seeds but anti-yeast activity was shown only two seeds (Myungsan, Baekwoon). RT-PCR products (about 0.2 Kb) were not shown only two seeds. To identify the sequencing relationship of the domestic radish, we have cloned and sequenced RAP genes of the radish and analysis the sequence relationship with clustalw program. Thus we report the result that there are some different relationship between domestic radish and known other radish's anti- fungal protein[15].

• Elastomers and Composites
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• v.49 no.4
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• pp.341-345
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• 2014

In this study, self-actuated photocatalyst that titanium dioxide doped by more than two transition metal was coated PU foam. The antibacterial and antifungal activity of self-actuated photocatalyst coated PU foam was characterized without light. The antibacterial property of self-actuated photocatalyst coated PU foam was shown to be reduced more than 96%, and the antifungal property was shown to be reduced more than 99.9%. The durability of self-actuated photocatalyst coated PU foam tested by Weather-O-meter showed the 7% reduction of formaldehyde decomposition from 96.5% before test to 89.8% after test. The observation of surface of PU foam coated with self-actuated photocatalyst showed that the catalyst was firmly attached to the surface of polyester fiber without separation.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2017.05a
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• pp.933-935
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• 2017

This paper deals with the influence of fungi for the thermal protective cork-based exterior insulator which protect a missile system from aerodynamic loads and heating during flight of missile. We consider the adhesion of cork-based composite on the composite motor case which fabricated by filament winding process. We also consider the importance of the requirement analysis for effective, successful system development under given system conditions. In order to develop the basic requirement analysis for the thermal protective cork-based exterior insulator, an experimental requirement analysis was accomplished, and some experimental comparing results, the study for preventing fungi are presented.

• Microbiology and Biotechnology Letters
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• v.35 no.4
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• pp.339-346
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• 2007

The MJP1 bacterial strain, which possesses antifungal activity, was isolated from meju and identified as Bacillus subtilis based on its morphological and biochemical properties, as well as its 16S rRNA sequence. Antimicrobial activity was found against various species of Gram-positive bacteria, yeasts, and molds, including food-spoilage microorganisms. The antifungal activity was found to be stable after heat and proteolytic enzyme treatment, and in the pH range of $6.0{\sim}10.0$. The antibacterial activity was stable in the pH range of $6.0{\sim}10.0$, but about 50% of the activity was lost after 24 hr at $30^{\circ}C$. The antibacterial compound was also inactivated by proteolytic enzyme treatment, indicating its proteinaceous nature. The apparent molecular masses of the partially purified antifungal and antibacterial compounds, as indicated by using the direct detection method in Tricine-SDS-PAGE, were approximately 2.4 kDa and 4.5 kDa, respectively. These studies suggest that B. subtilis MJP1 produces two bacteriocin-like substances with antifungal and antibacterial activities.

• Journal of the Korea Organic Resources Recycling Association
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• v.25 no.4
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• pp.51-60
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• 2017

Bottom ash(BA) from coal-fired power plants is burnt and remaining ash at high temperature. Since the BA is baked at high temperature, it is considered to be the same function as the elvan. Nowadays, the demand for mortar with far infrared rays, antibacteria, antifungus, deodorization, aridity and humidity function is increasing as the materials such as Hwangtoh(yellow soil) and elvan rather than general mortar. As a result of comparing the functionality of eco-friendly bio BA mortar with that of general mortar, the far infrared ray emissivity is about $0.02{\times}10^2W/m^2$ more and the deodorization function is about 26% or more. Even in the case of humidity control, BA motors showed about 1.8 times higher than general mortar, and more than 10% higher than the "good" standards of moisture absorption and damp proofing construction materials established by the Ministry of Land, Transport and Maritime Affairs.