• Title/Summary/Keyword: 대나물

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Characteristics of Soybean Soaking Water after Heat Treatment (대두 열처리 담금 용액의 특성)

  • Yoon, Hye-Hyun;Jeon, Eun-Jae
    • Korean Journal of Food Science and Technology
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    • v.35 no.6
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    • pp.1098-1103
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    • 2003
  • Soybeans released proteins when immersed in water at $50{\sim}60^{\sim}C$. We investigated the changes in the characteristics of soybean when soaked in water at different temperatures and studied the electrophoretic properties of soy proteins in recommended Korean soybean varieties after heat treatment. Soybean seeds were heated in soaking water at temperatures of 30, 40, 50, 60, $70^{\circ}C$ for 90 min, and also from 10 to 150min at $60^{\circ}C$. The pH value of the water decreased with heating time at $60^{\circ}C$, and the amount of soluble solids increased with temperature and heating time. The protein concentration of the solution increased with temperature and time. From SDS-PAGE of the proteins in soaking water, we detected two new bands of 16 kDa- and 31 kDa-proteins from the Korean soybean varieties on heat treatment.

Study on the Establishment of Wildflower Pastures (야생화초지의 조성에 관한 연구)

  • Lee, In-Duk;Lee, Hyung-Suk
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.28 no.2
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    • pp.89-98
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    • 2008
  • The purpose of this study was to suggest the basic data for establishment of wildflower pastures. The experimental design includes two treatments: Native wildflower pasture (NWP, Kentucky bluegrass + native wildflower 8 species) and Introduced wildflower pasture (IWP, Kentucky bluegass + introduced wildflower 24 species). The field trials were carried out on the experimental pastures plots at Chungnam National University throughout from Sep. 2006 to Dec. 2007. The results obtained are as fellows: In terms of the flower color in the wildflower pastures, the IWP was found more various than the NWP. But such problems as seasonal distribution and continuity were raised and moreover the time of flowering depended mainly upon the spring season. Even though the flower color in the NWP did not show up its variousness, seasonal distribution and continuity were found comparatively satisfactory. To perennially maintain the botanical composition, the variousness of wildflower species are found important after examining locally the beginning rearing and flowering characteristics of wildflowers as well as the basic turfgrass. Moreover, when the wildflower pastures was constructed in autumn, since most of the introduced wildflower were annuals, it maintained various botanical composition before wintering, but after wintering the botanical composition were found simplified due to the winter tolerance. The NWP did not show any problems in the winter tolerance but it could not make the botanical composition diversified. Accordingly, to maintain the wildflower pasture for many years, diversifying wildflower species based upon perennials including annuals seems to be good.

Estimating distribution changes of ten coastal plant species on the Korean Peninsula (한반도 해안식물 10종의 분포 변화 추정)

  • PARK, Jong-Soo;CHOI, Byoung-Hee
    • Korean Journal of Plant Taxonomy
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    • v.50 no.2
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    • pp.154-165
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    • 2020
  • Coastal regions are experiencing habitat changes due to coastal development and global warming. To estimate the future distribution of coastal plants on the Korean Peninsula due to climate change, the potential distribution of ten species of coastal plants was analyzed using the MaxEnt program. The study covered the eastern, western, and southern coastal areas of the Korean Peninsula. We used the distributional data of coastal plants of the East Asian region and the 19 climate variables of WorldClim 2.0. The future potential distribution was estimated using future climate variables projected from three general circulation models (CCSM4, MIROC-ESM, and MPI-ESM-LR), four representative concentration pathways (2.5, 4.5, 6.0, and 8.5), and two time periods (2050 and 2070). The annual mean temperature influenced the estimation of the potential distribution the most. Under predicted future distribution scenarios, Lathyrus japonicus, Glehnia littoralis, Calystegia soldanella, Vitex rotundifolia, Scutellaria strigillosa, Linaria japonica, and Ixeris repens are expected to show contracted distributions, whereas the distribution of Cnidium japonicum is expected to expand. Two species, Salsola komarovii and Carex kobomugi, are predicted to show similar distributions in the future compared to those in the present. The average potential distribution in the future suggests that the effects of climate change will be greater in the west and the south coastal regions than in the east coastal region. These results will be useful baseline data to establish a conservation strategy for coastal plants.

Cytogenetic Analysis of Seven Angelica Species (Angelica속 식물 7종의 세포유전학적 분석)

  • Choi, Hae-Woon;Koo, Dal-Hoe;Lee, Woo-Kyu;Kim, Soo-Young;Sung, Jung-Sook;Seong, Nak-Sul;Suh, Young-Bae;Bang, Jae-Wook
    • Korean Journal of Medicinal Crop Science
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    • v.13 no.3
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    • pp.118-121
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    • 2005
  • Karyotypes were established in seven Angelica species cultivated in Korea. The somatic chromosome numbers were 2n = 2x = 22 with the basic number of x = 11 in all Angelica plants examined. Their metaphase chromosomes ranged from 3.56 ${\mu}M$. to 8.91 x. in length. Distinctive Karyotypes were found in two species, A. tenuissima with all metacentries, K(2n) = 2x = 22m, and A. genuflexa with all subtelocentrics, K(2n) = 2x = 22st. Karyotype formulas of A. gigas, A. acutiloha, A. sinensis, A. decursiva and A. dahurica were K(2n) = 2x = 20m + 2sm, K(2n) = 2x = 12m + 10sm, K(2n) = 2x = 16m + 6sm, K(2n) = 2x = 18m + 4sm and K(2n) = 2x = 10m + 10sm + 2st, respectively. Cytological data showed that chromosomal polymorphisms within species were observed in Angelica plants compare to other regions.

A Study on the Perception and Awareness of Native Local Foods - Centering around Gimhae, Gyeongnam Province - (향토음식에 대한 의식 및 인지도에 관한 연구 - 경남 김해지역을 중심으로 -)

  • Park, Kyong-Tae
    • Culinary science and hospitality research
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    • v.17 no.2
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    • pp.98-110
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    • 2011
  • This study aims to furnish the basic data in securing momentum for taking interest in inheriting and developing the native local foods in Gimhae by examining the perception and awareness of the native local foods among the local residents in Gimhae, Gyeongnam Province. As the results of this study, the definition of native local foods was surveyed as follows. Foods that have been handed down for generations by using local agricultural products as their ingredients; a local food restaurant was the most preferred place to eat native local foods; the most chosen reason why they should eat native local foods was 'good for health'; as for the necessity of inheriting and developing the native local foods, most of them agreed, and it was because they felt they should protect their food culture; and 'native local foods contests' were the best way to promote the native local foods. As the results of analyzing the awareness of 12 kinds of native local foods in Gimhae, there were significant differences in Kongnamul-bab, Minmul Jangeo-gui, Gajuk-jaban, Kongip-mulkimchi by gender, in Hobakogari-namul, Moomallaengi-jangachi, Kongip-mulgimchi by ages, and in Kongnamul-bab, Gajuk-jaban, Kongip-mulgimchi by the residential districts. Accordingly, in order to inherit and develop the native local foods which are the precious cultural assets in Gimhae, there should be continued opportunities and interest to promote them through the local festivals and events along with publicity activities for the native local foods.

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A Segmentation Study of Temple Food for the Global Convergence - Focusing on Recognition and Preference - (글로벌 융복합을 위한 사찰음식 세분화 연구 - 인식과 선호도를 중심으로 -)

  • Lee, Yong-Dae
    • Culinary science and hospitality research
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    • v.22 no.5
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    • pp.134-150
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    • 2016
  • The purpose of this study is to investigate the recognition and preference for temple food between Korea and foreign national temple-stay participants. In order to achieve the research purpose, 220 research questionnaires were distributed to Korean and foreigners who have participated in a temple-stay. T-test and ANOVA analyses were performed for this study. The findings are summarized as follows. The highest recognition item for Korean temple food that the subjects perceived was 'I think Korean temple food is a medicinal food.'(4.31 points). In the value recognition score for Korean temple food, Asians(4.58 points) are relatively higher than Korean (4.23 points), North American (4.13 points) and European (3.94 points) participants. Participants in Asia appeared relatively higher than the others in the preference score on Korean temple food. The higher globalization strategy items of Korean temple food that the subjects perceived were 'Korean temple food needs a storytelling marketing'(3.94 points) and 'Korean temple food needs a modernization of cookware'(3.90 points).

Distribution of Vascular Plants in Namhan River, Chungju-si (충주시 남한강의 관속식물상 분포)

  • You, Ju-Han;Ahn, Young-Sup;Lee, Cheol-Hee
    • Korean Journal of Plant Resources
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    • v.25 no.2
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    • pp.209-224
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    • 2012
  • This study was carried out to survey the vascular plants of Namhan River located in Chungju-si, and the period of survey was from June, 2010 to June, 2011. The results are as follows. The vascular plants distributed in Neungam, Mokgye and Jangcheon around Namhan river were summarized as 225 taxa including 52 families, 164 genera, 200 species, 23 varieties and 2 forms. The rare plant designated by Korea Forest Service was $Aristolochia$ $contorta$ Bunge, and the endemic plant was identified as $Salix$ $koriyanagi$ Kimura. The specific plants by floristic region were 7 taxa including $Salix$ $chaenomeloides$ Kimura, $Aristolochia$ $contorta$ Bunge, $Actinostemma$ $lobatum$ Maxim., $Artemisia$ $selengensis$ Turcz., $Cirsium$ $pendulum$ Fisch., $Alisma$ $plantago-aquatic$ var. $orientale$ Samuels. and $Carex$ $versicaria$ L.. The naturalized plants were 47 taxa including $Fallopia$ $dumetorum$ (L.) Holub., $Chenopoidum$ $album$ L., $Silene$ $armeria$ L., $Brassica$ $juncea$ (L.) Czern., $Melilotus$ $alba$ Medicus, $Trifolium$ $pratense$ L., $Oenothera$ $erythrosepala$ Borb$\acute{a}$s, $Ipomoea$ $hederacea$ var. $integriuscula$ A.Gray, $Bidens$ $frondosa$ L., $Matricaria$ $inodora$ L., $Xanthium$ $canadense$ Mill., $Panicum$ $dichotomiflorum$ Michx. and so forth. In life forms, megaphanerophytes (M) were 13 taxa, 13 taxa in nanophanerophytes (N), 14 taxa inchamaiphytes (Ch), 40 taxa in hemicryptophytes (H), 20 taxa in geophytes (G), 103 taxa in therophytes (Th) and 22 taxa in hydrophytes (HH). The ratios of the naturalized index (NI), the urbanized index (UI) and the disturbed index (DI) were 20.9%, 14.6% and 18.2% in all sites.

Syntaxonomical and Synecological Research of Forest Vegetation on Mt. Byeokbang (벽방산 산림식생의 군락분류와 군락생태)

  • Choi, Byoung-Ki;Huh, Man-Kyu;Kim, Seong-Yeol
    • Journal of Life Science
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    • v.25 no.6
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    • pp.646-655
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    • 2015
  • A phytosociological survey carried out using the Z.-M. School’s methodology and system of numerical-classification analyses, this study sought to classify the syntaxa of forest vegetation on Mt. Byeokbang and to collect basic data on the transitional zones of the southern Korean peninsula’s coastal region. The syntaxa were classified into three physiognomic types and nine communities, including (1) evergreen coniferous forests (Eurya japonica-Pinus thunbergii community and Ardisia japonica-Pinus densiflora community), (2) summer-green, broad-leaved forests (Chloranthus japonicus-Quercus serrate community, Syneilesis palmata-Quercus mongolica community, Quercus acutissima community, Carpinus turczaninovii var. coreana community, Fraxinus siebolidiana-Quercus dentate community, and Deutzia glabrata-Lindera erythrocarpa community), and (3) artificial afforestation (Alnus firma afforestation). The Chloranthus japonicus-Quercus serrata community, Syneilesis palmata-Quercus mongolica community, Fraxinus siebolidiana-Quercus dentata community, Carpinus turczaninovii var. coreana, community and Deutzia glabrata-Lindera erythrocarpa community were closely evaluated for national vegetation naturalness. It was confirmed that the Carpinus turczaninovii var. coreana community was endemic to Korea. Most syntaxa were defined as a secondary forestation due to various human activities (e.g., forest fires, logging, digging, climbing, etc.). The results of a canonical-correspondence analysis (CCA) showed that human activities, altitude, humus depth, rock cover ratio, slope, etc. were the main ecological factors determining the classified plant communities’ distribution patterns.

Floristic study of Ibamsan Mt. and Baekamsan Mt. (입암산과 백암산의 식물상)

  • SUN, Eun-Mi;SON, Hyun-Deok;PARK, Seong-Bae;KIM, U-Nam;IM, Hyoung-Tak
    • Korean Journal of Plant Taxonomy
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    • v.50 no.1
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    • pp.27-55
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    • 2020
  • We investigated the flora of Ibamsan Mt. and Baekamsan Mt., and discuss here important vascular plants found on these mountains. We created a plant list using voucher specimens collected from Ibamsan Mt. and Baekamsan deposited at CNU. There are 769 taxa in Ibamsan Mt. and Baekamsan Mt., consisting of 116 families, 403 genera, 687 species, 16 subspecies, 58 varieties, and 8 forms. Twenty-four endemic plants of Korea were found, including Coreanomecon hylomeconoides Nakai and Eranthis byunsanensis B. Y. Sun. There are 15 rare plants on Ibamsan Mt. and Baekamsan as designated by the Korea Forest Service, including Iris koreana Nakai and Chamaegastrodia shikokiana Makino & F. Maek., as well as 14 red-list plants as designated by the Ministry of the Environment, including Lycoris chinensis var. sinuolata K. Tae & S. C. Ko ex K. Tae & S. C. Ko and Cymbidium macrorhizon Lindl. In total, there are 133 taxa of floristic regional indicator plants, including four level V taxa, such as Iris koreana Nakai; ten level IV taxa, such as Lindera sericea (Siebold & Zucc.) Blume; 28 level III taxa, such as Botrychium japonicum (Prantl) Underw.; 22 level II taxa, including Hylomecon vernalis Maxim.; and 69 level I taxa, including Dryopteris erythrosora (D. C. Eaton) Kuntze. There are 37 invasive plants, including Rumex acetosella L. and Symphyotrichum pilosum (Willd.) G. L. Nesom.

Population genetic structure of Sedum polytrichoides (Crassulaceae): Insights into barriers to gene flow (바위채송화(돌나물과)집단의 유전적 구조: 유전자 이동과 물리적 장벽에 관한 통찰)

  • Chung, Mi Yoon;Lopez-Pujol, Jordi;Chung, Myong Gi
    • Korean Journal of Plant Taxonomy
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    • v.46 no.4
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    • pp.361-370
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    • 2016
  • An area comprising Juwangsan National Park and its adjacent mountains (southeastern Korean Peninsula) is a good model system for testing the effects of physical barriers to gene flows in plant populations. We predicted that plant species consisting of isolated populations are genetically more differentiated than those that are rather continuously distributed. Most populations of Sedum polytrichoides occur in four isolated valleys, and we assessed the genetic variability and structures using twelve allozyme loci in ten populations. We also compared the present results to earlier findings pertaining to the two co-occurring herbs Hylotelephium ussuriense (${\equiv}$ Sedum ussuriense) (growing only in the four isolated valleys) and S. kamtschaticum (rather continuously distributed). We found moderate levels of within-population genetic variation in S. polytrichoides ($H_{e}=0.112$). Estimates of among-population divergence in S. polytrichoides were also moderate ($F_{ST}=0.250$) and, as expected, very similar to that of H. ussuriense (0.261) but considerably higher than the variation in S. kamtschaticum (0.165). An analysis of molecular variance (AMOVA) revealed that S. polytrichoides and H. ussuriense had higher percentages of among-valley variation (19% each) than S. kamtschaticum (4%). Most of this variation, as also indicated by the STRUCTURE program, was due to differences in genetic profiles between the two central valleys. We concluded that the genetic differences observed between species (S. kamtschaticum vs. S. polytrichoides and H. ussuriense) are mainly due to differences in their distribution within the study area.