• 한국농공학회논문집
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• 제59권5호
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• pp.17-23
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• 2017

In South Korea, 25 % of annual agricultural residues (11.64 million tons) are unused. The hydrophilicity, low lower heating value (LHV), and low energy density of agricultural residues can be obstacles for efficient usage. Torrefaction, a low temperature pyrolysis process, can be a solution to overcome these disadvantage of agricultural residues. In this study, agricultural residues such as bean stem, pepper stem, perilla stem, sorghum stem, acorn shell, and ginkgo shell are torrefied at 200, 230, and $250^{\circ}C$ and evaluated energy properties, respectively. The torrefaction can increase the LHV and energy density rate of agricultural residues from 3,331~4,444 kcal/kg to 4,166~5,830 kcal/kg and 20~30 %, respectively.

• 한국응용곤충학회지
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• 제28권3호
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• pp.113-119
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• 1989

금잔화, 들깨풀, 수국등 10종의 야생식물잎의 추출물이 담배나방(Heliothis assulta) 유충의 발육과 성충의 산란에 미치는 영향을 조사하였다. 그 결과 유충이 높았으며 대부분 1영과 2영 기간중 먹지않기 때문이다. 여기서 살아남은 유충들도 발육기간 및 탈피횟수는 증가하는 경향을 보였다. 이중 갈매나무와 때죽나무의 추출물은 성충의 산란도 상당히 억제하였다.

• Archives of Pharmacal Research
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• 제29권6호
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• pp.503-507
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• 2006

Flavonoids are known as natural anti-inflammatory agents. In this investigation, an anti-inflammatory potential of new topical preparation (SK Ato $Formula^{\circledR}$) containing flavonoid mixtures from Scutellaria baicalensis Georgi roots and Ginkgo biloba L. leaves with an extract of Gentiana scabra Bunge roots was evaluated in an animal model of chronic skin inflammation. Multiple 12-O-tetradecanoylphorbol-13-acetate treatments for 7 consecutive days on ICR mouse ear provoked a chronic type of skin inflammation: dermal edema, epidermal hyperplasia and infiltration of inflammatory cells. When topically applied in this model, this row formulation $(5-20\;{\mu}L/ear/treatment)$ reduced these responses. Furthermore, it inhibited prostaglandin $E_2$ generation (17.1-33.3%) and suppressed the expression of proinflammatory genes, cyclooxygenase-2 and $interleulin-1{\beta}$ in the skin lesion. Although the potency of inhibition was lower than that of prednisolone, all these results suggest that Ato $Formula^{\circledR}$ may be beneficial for treating chronic skin inflammatory disorders such as atopic dermatitis.

• 한국염색가공학회지
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• 제24권4호
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• pp.270-280
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• 2012

This study examined the dyeing characteristics of five oriental herbs, namely Gardenia jasminoides, Sophora japonica L., Rheum coreanum, Rhus javanica L., Ginkgo biloba L., on fabrics with traditional fermentation using malt. And the properties of Hwangsu (mineral water) of Yeongcheon (Korea)as a mordant in the post-treatment of textile were evaluated. The dyeability and fastness of cotton fabric and silk to light and washing as well as different fermentation periods and temperatures were investigated, and the following results were obtained. The dyeability of the fermented and non-fermented material did not show a significant difference. Fabrics mordanted with Hwangsu generally exhibited a reddish color due to the presence of iron. The dyeing of cotton fabric and silk by fermentation and Hwangsu mordanting were found to be effective on Rhus javanica L. and Rheum coreanum. These results were confirmed through fastness to light 3 of cotton on Rheum coreanum and 3-4 of silk on Rhus javanica L., respectively. The washing fastness of both fabrics dyed with fermented Rhus javanica L. and Rheum coreanum was improved, showing higher K/S value after washing than before washing.

• 한국균학회지
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• 제47권3호
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• pp.187-197
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• 2019

Ascomycota is the largest phylum of the Fungi, including approximately 6,600 genera. They are often isolated from soils, indoor air, and freshwater environments, but also from plants as pathogens or endophytes. In this study, four species of Ascomycota (two of Cladosporium and one of each Daldinia and Nigrospora) were collected from the leaves of four woody plants (Camellia japonica, Ginkgo biloba, Quercus sp., Vitis vinifera). Their cultural characteristics were investigated on five different media (PDA, V8A, CMA, MEA, CZA) at 3 days after incubation at $25^{\circ}C$ in darkness. BLASTn search and phylogenetic analysis were performed using the internal transcribed spacer (ITS) rDNA sequences, in addition to tef1 gene sequences for Cladosporium species. Based on the cultural, morphological, and phylogenetic data, the isolates were identified as Cladosporium anthropophilum, Cladosporium pseudocladosporioides, Daldinia eschscholtzii, and Nigrospora chinensis. Previously, some members of Cladosporium and Nigrospora have been recorded as endophytes inhabiting the leaves and stems of various plants, whereas Daldinia eschscholtzii is a wood-inhabiting endophyte or wood-decaying fungus. To our knowledge, this is the first report of these four ascomycetes in Korea.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2019년도 추계학술대회
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• pp.102-102
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• 2019

Soybean curd residue (SCR), known as a major waste product of soybean processing, is the water-insoluble fraction which is removed by filtration during soymilk production. For these reasons, SCR was usually considered as food waste. SCR might have a good potential as a functional food material, value-added processing and utilization. SCR contains high-quality protein and consists of a good source of nutrients, including protein, oil, dietary fiber, minerals, along with un-specified monosaccharides and oligosaccharides. Also, SCR might be a potential source of low cost protein for human consumption. However, SCR could be a source of bacterial contamination when during food processing. This study was aimed to investigate antibacterial capacity of natural product through detecting relationship between SCR and microbial. We isolated five bacterial strains from SCR and elucidated antibacterial activity of nature medicines to extend storage capacity of food made with SCR. Thus, the extract which showed antibacterial effects in Corynebacterium calloonae and Raoultella amithinolytica is a combination of seven kinds of extracts: Glycyrrhiza uralensis, Cudrania tricuspidata, Salvia miltiorrhiza Bunge, blueberry, Acorus gramineus, Ginkgo biloba L., Camellia sinensis. This study suggested that antibacterial activities of natural medicines could be used for extension of storage capacity in SCR-contained food.

• 대한의사협회지
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• 제61권12호
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• pp.758-764
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• 2018

Dementia is a clinical syndrome characterized by a cluster of symptoms and signs that manifest as difficulties in cognitive functions such as memory, psychological and psychiatric changes, and impairments in activities of daily living. As a result of worldwide trends of population aging, dementia has had a huge impact on public health in almost all countries. Disease modification therapies for dementia have not yet been developed. However, pharmacotherapy is essential in patients with dementia to combat delays in their cognitive and functional decline. In this article, we review the current pharmacotherapy for dementia. Three acetylcholinesterase inhibitors-donepezil, rivastigmine, galantamine-and memantine are the only medications that have been approved for the treatment of dementia. We present the indications, dose recommendations, side effects, and criteria for National Health Insurance coverage in Korea of these medications for dementia treatment. Although the Ministry of Food and Drug Safety in Korea has not approved any medications for managing the behavioral and psychological symptoms of dementia, some antipsychotics and antidepressants have been studied and used clinically for those purposes. Clinicians may consider vitamin E, Ginkgo biloba extract, choline alfoscerate, or omega-3 fatty acids as additional treatment options. Non-steroid anti-inflammatory drugs, estrogen hormone therapy, and statins are not generally recommended for dementia treatment. We believe that our findings will aid clinicians in the treatment of patients with cognitive decline.

• 한국환경복원기술학회지
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• 제24권3호
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• pp.49-68
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• 2021

This study was to carried out to survey and analyse the vascular plants of Mt. Jangsan, Busan Metropolitan City, South Korea. The vascular plants were surveyed from June to October, 2019. The numbers of vascular plants in this site were 497 taxa and comprised of 106 families, 306 genera, 454 species, 7 subspecies, 29 varieties, 5 forms and 2 hybrids. The planted species were 16 taxa including Ginkgo biloba, Cedrus deodara, Zea mays and so on. In this study, 309 taxa were identified, including Selaginella rossii, Cyrtomium falcatum, Cephalanthera falcata and so on. The rare plants were 4 taxa including Hololeion maximowiczii(EN), Ottelia alismoides(LC), Iris ensata Thunb. var. spontanea(LC) and Sagittaria trifolia(DD). All rare plants were found in Jangsan Wetland. The Korean endemic plants were 9 taxa including Populus × tomentiglandulosa, Hemerocallis hakuunensis, Hosta minor and so on. The floristic target species were totally 53 taxa, which were 2 taxa of grade IV, 11 taxa of grade III, 6 taxa of grade II and 34 taxa of grade I. The alien plants were 58 taxa including Rumex crispus, Ipomoea purpurea, Helianthus tuberosus, Vulpia myuros and so on.

• Journal of the Korean Wood Science and Technology
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• 제50권6호
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• pp.490-498
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• 2022

The current study aimed to verify the image segmentation ability of rays in tangential thin sections of conifers using artificial intelligence technology. The applied model was Mask region-based convolutional neural network (Mask R-CNN) and softwoods (viz. Picea jezoensis, Larix gmelinii, Abies nephrolepis, Abies koreana, Ginkgo biloba, Taxus cuspidata, Cryptomeria japonica, Cedrus deodara, Pinus koraiensis) were selected for the study. To take digital pictures, thin sections of thickness 10-15 ㎛ were cut using a microtome, and then stained using a 1:1 mixture of 0.5% astra blue and 1% safranin. In the digital images, rays were selected as detection objects, and Computer Vision Annotation Tool was used to annotate the rays in the training images taken from the tangential sections of the woods. The performance of the Mask R-CNN applied to select rays was as high as 0.837 mean average precision and saving the time more than half of that required for Ground Truth. During the image analysis process, however, division of the rays into two or more rays occurred. This caused some errors in the measurement of the ray height. To improve the image processing algorithms, further work on combining the fragments of a ray into one ray segment, and increasing the precision of the boundary between rays and the neighboring tissues is required.

• 사상체질의학회지
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• 제34권3호
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• pp.21-30
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• 2022

Objectives This paper was aimed to review the preceding research on the origins, changes and constructive principle of Mahwangjeongchun-tang. Method Based on Jema Lee's works such as Dongyisusebowon and Dongmuyoogo, we analyzed contents related to Mahwangjeongchun-tang and its modification. Moreover, we reviewed physiological and pathological pecularities of Taeeumin symptomatology and applied the theory to induce the principle of the modified Mahwangjeongchun-tang in Sasang medicine. Results and Conclusion 1) The origins of Mahwangjeongchun-tang might be Mahwang-tang, Jungchun-tang and Saengmaek-san. 2) Mahwangjeongchun-tang had been changed in composition when it moved from Manbyonghoichun to Dongyisusebowon. 3) Mahwangjeongchun-tang consists of a) Platycodi Radix (桔梗), Liriopis Tuber(麥門冬) and Scutellariae Radix(黃芩) which directly or indirectly enhance lung function, b) Ephedra Sinica(麻黃) which affects circulation of lung companion, c) Prunus Armeniaca(杏仁) and Ginkgo Biloba(白果) which affect wiwan's upward circulatory force, d) Radish Seed (蘿葍子) which affects small intestine's digesting effect, e) Mori Cortex Radicis(桑白皮) and Farfarae Flos(款冬花) which affect cough and asthma.