• 제목/요약/키워드: solidago

검색결과 66건 처리시간 0.023초

MAP 포장재의 종류와 온도가 울릉미역취의 품질에 미치는 영향 (Effects of Storage Temperature and Materials on Maintenance of Quality of Solidago virgaurea spp. gigantea in Modified Atmosphere Packaging)

  • 최맑음;정헌식;문광덕
    • 한국식품저장유통학회지
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    • 제15권6호
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    • pp.804-809
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    • 2008
  • 울릉미역취의 저장기간 연장을 위한 MAP기술을 개발하기 위하여, 포장재질과 저장온도가 품질 특성에 미치는 영향을 조사하였다. 울릉미역취를 6월경에 수확하여 $30\;{\mu}m$ PP, $30\;{\mu}m$ Antifogging-OPP, $30\;{\mu}m$ LDPE, $18\;{\mu}m$ Macroperforated-HDPE, $60\;{\mu}m$ Nylon/PE, $85\;{\mu}m$ PVC/PE 재질의 필름으로 밀봉포장하고 4, 10, $20^{\circ}C$에서 저장하면서 포장내의 기체 농도와 품질 특성을 분석하였다. 저장온도 $10^{\circ}C$에서 포장 내의 산소 농도를 비교해보면 PP와 A-OPP 포장구는 $9{\sim}10%$, LDPE 포장구는 $12{\sim}16%$, Nylon/PE와 PVC/PE 포장구는 2%를 각각 유지하였다. 포장 내의 이산화탄소 농도는 PP, A-OPP, LDPE 포장구는 5%를, Nylon/PE와 PVC/PE 포장구는 경시적으로 증가함을 보였다. 중량감소는 M-HDPE 포장구에서는 거의 억제되지 않았으나 그외 포장구에서는 강력하게 억제되었고 저장온도가 낮을수록 억제효과는 증가됨을 보였다. 가용성 고형분 함량과 pH는 $4^{\circ}C$$10^{\circ}C$에서는 큰 변화를 보이지 않았고 포장재질의 영향도 받지 않았으나 $20^{\circ}C$에서는 포장재질에 따라 다른 변화양상을 나타내었다. 관능적 품질 특성인 외관, 색 및 전반적 기호도가 저온과 PP 포장구에서 가장 높게 평가되었다. 이로써 울릉미역취에 적합한 MAP 조건은 포장 내를 약 10% 산소와 5% 이산화탄소로 유지할 수 있는 PP 재질과 $4^{\circ}C$ 저장인 것으로 확인되었다.

Outbreak of Rust Caused by Coleosporium asterum on Solidago virgaurea var. gigantea in Ulleung-do

  • Back, Chang-Gi;Nam, Gu-Youn;Lee, Seung-Yeol;Jung, Hee-Young
    • Mycobiology
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    • 제42권1호
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    • pp.79-81
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    • 2014
  • From June to October 2012, severe outbreaks of rust disease on Solidago virgaurea var. gigantea were observed in 5 different regions of Ulleung-do, Korea. Typical rust symptoms appeared as yellow spots, uredinia on leaves, and massive urediniospores covering the entire plant. Severely infected plants became discolored and died. On the basis of its morphological and molecular characteristics, the causal agent was identified as Coleosporium asterum. This pathogen has been reported as rust disease on S. virgaurea in the Canada and United States. In Korea, rust disease on S. virgaurea var. gigantea was reported as Uromyces rudbeckia in 1992. To the best of our knowledge, C. asterum is a novel rust pathogen on S. virgaurea var. gigantea in Korea.

약용식물 추출물이 저온식품의 미생물에 대한 항균효과 (Antimicrobial Activity of Medicinal Herbs Extracts on Cooling Preservation Foods.)

  • 양의주;한정;이인선
    • 한국식품저장유통학회지
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    • 제6권1호
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    • pp.110-114
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    • 1999
  • In order to study the natural preservation of food, sixteen kinds of medicinal plants were extracted by 80% methanol and then antimicrobial activity of the extracts was investigated against various kinds of microorganisms. The extracts of medicinal plants showed good effects of antimicrobial activity against bacteria except Bacillus cereus, Escherichia coli O-157. Especially, the extracts of Artemisia annua, Aster scaber, Solidago virganrea shower good inhibitory effects on the growth of bacteria to the cooling preservation foods, and Artemisia annua was decreased of the TMA(Trimethylamine) test. the result thus indicate that Artemisia annua, Aster scaber, Solidago fischeri extract inhibitory effects on cooling preservation foods, so that it may be potential as a natural preservatives.

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Polymerase Chain Reaction(PCR)을 이용한 오동나무, 라일락, 미역취의 Phytoplasma 검출 및 유연 관계 (Detection of Phytoplasmas from Paulownia tomentosa, Syringa vulgaris and solidago vir-aurea var. gigantea Using Polymerase Chain Reaction (PCR) and Their Relationships)

  • 이준탁;이준탁;예미지;권오유
    • 한국식물병리학회지
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    • 제12권2호
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    • pp.191-196
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    • 1996
  • 위축, 황화, 총생 증상 등 전형적인 병징을 나타내는 phytoplasma에 감염된 식물에서 phytoplasma만을 특이적으로 검출하기 위하여 polymerase chain reaction(PCR) 방법을 이용하였다. Phytoplasma의 16S rRNA gence의 DNA 단편을 증폭하기 위하여 1.4 kb primers (forward, 5` -GTTGATCCTGGCTCAGGATT-3` 와 reverse, 5` -AACCCCGAGAACGTATTCACC -3`)를 사용하여 증폭한 결과, phytoplasma에 이병된 오동나무, 라일락 및 미역취에서는 약 1.4 kbp의 위치에서 특이 band가 검출되었으나 control로 사용한 건전주에서는 어떠한 band 검출되지 않았다. 위의 결과를 재확인 하기 위하여 약 0.5 kb의 primers(forward, 5` -ACGAAAGCGTGGGGAGCAAA-3` 와 reverse, 5` -GAAGTCGAGTTGCAGACTTC-3`)를 사용하여 증폭한 결과, 0.5 kb의 위치에서 특이 band가 검출되었으나 control로 사용한 건전주에서는 어떠한 band도 검출되지 않았다. Phytoplasma에 이병된 식물의 PCR 반응산물을 제한효소인 AluI으로 처리하 sruf과, 오동나무와 라일락에서는 동일한 band pattern을 나타내어 서로 유연관계가 가까운 phytoplasma인 것으로 생각되며, 미역취에서는 이들과는 다른 band pattern을 나타내어 오동나무와 라일락의 phytoplasma와는 유연관계가 먼 것으로 추측된다.

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Cytotoxic Constituents from Solidago virga-aurea var. gigantea MIQ

  • Sung, Jong-Hoon;Lee, Jung-Ock;Son, Jong-Kun;Park, No-Sang;Kim, Mi-Ran;Kim, Jae-Gil;Moon, Dong-Cheul
    • Archives of Pharmacal Research
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    • 제22권6호
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    • pp.633-637
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    • 1999
  • Activity-guided fractionation of the whole plant of Solidago virga-aurea var. gigantea MIQ. (Compositae) has led to the isolation of three cytotoxic compounds, erythrodial-3-acetate (1), $\alpha$-tocopherol-quinone (2), and trans-phytol (3) from the hexane soluble fraction. It is the first report of those compounds from the genus.

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Effect of UV -B radiation on seedlings of two Solidago virgaurea populations from the Mt. Hakusan area of Japan

  • Nakajima, Nobuyoshi;Takahashi, Shinya;Tamaoki, Masanori;Kubo, Akihiro;Aono, Mitsuko;Saji, Hikaru
    • Journal of Photoscience
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    • 제9권2호
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    • pp.400-402
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    • 2002
  • We collected seeds of Solidago virgaurea plants growing at different altitudes on the Mt Hakusan area in Japan and cultivated them in a naturally-lit green house. Three-week-old seedlings were irradiated with supplemental UV-B for 12 h each day for 1 and 2 weeks. After a week of itradiation the seedlings of the population collected from the higher altitude at Oh-nanjiho (ON) had accumulated more anthocyanins than those from the lower altitude at Bettoh-deai (BD). Levels of anthocyanins in the ON seedlings were highly correlated with the dose of UV-B radiation and the correlation was also observed after 2 weeks. The growth of the third leaves was retarded by UV-B radiation in both populations. The extent of growth retardation in the third leaves was correlated with the dose of UV -B radiation in both populations. However, no significant difference in the extent of leaf area growth was observed between the ON and BD populations. The increase in plant fresh weight was extensively inhibited in the ON seedlings after 1 week of UV-B radiation. The inhibition was recovered to those in the BD population by 2 weeks irradiation. These results indicate that these populations respond differentially to supplementary UV -B radiation during the first week. Because flavonoids such as anthocyanins play an important role in protection against UV-B radiation in many plants, populations growing at higher altitude may be better able to adapt to increased global levels of UV-B radiation.

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Assessing Soil Fertility Status of Edible Wild Plants Fields in Ulleung Island

  • Park, Sang-Jo;Park, Jun-Hong;Kim, Byung-Sung;Chung, Yun-Hak;Lee, Dong-Jun;Kwon, Oh-Heun;Park, So-Deuk;Lee, Suk-Hee
    • 한국토양비료학회지
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    • 제49권4호
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    • pp.368-374
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    • 2016
  • The perennial edible wild plants such as Aster glehnii, Solidago virgaurea subsp. gigantean, Allium ochotense, Athyrium acutipinnulum, Aruncus dioicus var. kamtschaticus and Codonopsis lanceolata have cultivated as the main income crops introduced into the fields about 30 years ago in Ulleung island. Soil samples were collected from 190 fields and assessed the effects of management practices on soil chemical properties at wild edible plant fields under no-till system. The strong acidic soils of pH 5.4 or less were detected in 45% of the soil samples. The level of soil organic matter was being held at mean $63{\pm}28g\;kg^{-1}$, 2.7 times higher than upland soils in Korea. Available phosphate and exchangeable potassium showed more than recommended levels of upland crops as $680{\pm}489mg\;kg^{-1}$ and $1.94{\pm}1.7cmol_c\;kg^{-1}$, respectively. The fields of Solidago and Aster showing strong soil acidity and high level of available phosphate and water soluble $NO_3{^-}$ were distinguished from other crops in analysis of variance and principal component analysis of soil chemicals. These results suggested that high frequency of acidic soil and high levels of available $P_2O_5$, exchangeable $K_2O$ and water soluble $NO_3{^-}$ were accompanied with the use of urea and NPK-fertilizer based on nitrogen in the field. However, further research is needed to understand the appropriate management of fertilization and the prevention of soil acidification for wild edible plants.

미역취의 육묘일수가 추대반응과 수량에 미치는 영향 (Effects of Nursery Periods on Bolting Response and Yield of Solidago)

  • 민기군
    • 한국자원식물학회지
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    • 제10권4호
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    • pp.382-385
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    • 1997
  • 미역취의 재배기술 확립을 위하여 육묘일수에 따른 생육특성, 추대율 및 수량성을 시험하여 얻어진 결과를 요약하면 다음과 같다. 1. 육묘일수에 따른 생육은 재배년수와는 무관하게 60일 육묘와 70일 육묘에서 초장, 분기수가 40일 육묘와 50일 육묘보다 양호하였다. 2. 육묘일수별 추대반응은 1년차의 경우 40일 육묘와 50일 육묘에서 추대율이 각각 14.5%, 13.5%로 나타난 반면 60일 육묘와 70일 육묘에서는 추대주가 없었다. 3. 육묘일수별 생엽수량은 육묘일수에 따라 다소 수량차이는 있었지만 전반적으로 60일 육묘가 가장 높은 수량성을 보였다. 4. 재배년수에 따른 추대율은 2년차 재배보다 평균적으로 3년차 재배에서 낮아졌으며 생엽 수량은 38% 증가되었다. 5. 미역취의 추대에 따른 적정 수량확보를 위한 적정 육묘일수는 60일정도 육묘하여 재배하는 것이 유리한 것으로 판단되었다.

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울릉미역취 에탄올추출물의 항산화 활성 (Antioxidant Activities of Ethanol Extracts from Solidago virga-aurea var. gigantea)

  • 지윤선;이남선;길기정;유지현
    • 대한본초학회지
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    • 제34권1호
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    • pp.109-116
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    • 2019
  • Objectives : This study aimed to analyze contents of chlorogenic acid among major ingredients and determine the optimal solvent for the antioxidant activity from Solidago virga-aurea var. gigantea(SV) aerial part. Methods : Mature aerial part of extracted SV at the first crop on June 2018 was used. SV was mixed with each at the ethanol concentrate rates of water, 10, 30, 50, 70, and 100% and extracted them for three times for eight hours at $70^{\circ}C$. The contents of chlorogenic acid and seven kinds of antioxidant activities were measured in SV extracts. Results : The highest the contents of chlorogenic acid was from 10% ethanol extracts showed. Total polyphenol and flavonoids of SV extracts were 126.16 mg/g and 105.84 mg/g, respectively. Scavenging activities of DPPH, ABTS, and hydroxyl radical significantly increased in a dose-dependent in SV extracts, while it was almost similar with control at the concentration of $500{\mu}g/mL$. $Fe^{2+}$ chelating activity significantly increase in a dose-dependent in SV extract, it was lower than control. Nitrite scavenging activity increased, dose-dependent in the sequence of pH 1.2> pH 3.0 > pH 6.0 in SV extracts, while it was almost similar with control at the concentration of $500{\mu}g/mL$, pH 1.2, and pH 3.0. Conclusions : Thus, this study found that higher contents of chlorogenic acid and excellent antioxidant activity were contained in 10% ethanol extracts in mature aerial part of SV. It is expected to be used as basic data as natural antioxidant materials.