• 제목/요약/키워드: cultivated wood

검색결과 72건 처리시간 0.025초

Studies on Constituents of Higher Fungi of Korea (LXXI) -Application of Enzymes to Taxonomy of Ganoderma Species-

  • Kim, Byong-Kak;Kim, Jin-Sook;Choi, Kyun-Gae;Kim, Ha-Won;Choi, Eung-Chil
    • 생약학회지
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    • 제24권2호
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    • pp.116-123
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    • 1993
  • The genus Ganoderma is typical wood-rotting fungi and its fruiting body has been used as an important herb in oriental medicine. Recent research discovered antitumor components from Ganoderma lncidum. Various Ganoderma species are being cultivated in Korea. However, taxonomic system of the genus Ganoderma has been based mainly on the macromorphology of fruiting bodies and the ultrastructural characteristics of basidiospores. Since there are similar characteristics in Ganoderma mycelia grown on the same artificial media, it is suggested that the compatibility of the fungi by di-mon mating be used as an aid to determine the identity of species in addition to the conventional characterization. In this study, we examined physiological and genetical properties such as growth temperature, pH, compatibility and enzyme or protein patterns of laccase, esterase and cellular proteins of G. lucidum RZ, G. tsugae and Ganoderma species cultivated in Korea by electrophoresis for characterization of the isolates. We found that compatibility test and isozyme patterns of laccase and esterase of the mycelia could be used for the differentiation of the isolates. These results showed that Ganoderma species cultivated in Korea is genetically similar to G. lucidum but physiologically closer to G. tsugae than to G. lucidum.

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고려인삼의 재배 역사와 본초학적 고증을 통한 인삼 기미 고찰 (Discussion of Ginseng Properties through a Historical Research of Korean Ginseng)

  • 고성권;임강현
    • 대한본초학회지
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    • 제24권3호
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    • pp.169-172
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    • 2009
  • Objectives : The purpose of this study is to discuss ginseng properties by historical research. Methods : Historical documentary records of ginseng were used to develop this review. Results : According to the historical research, the first Korean ginseng cultivation started from the Koryo Dynasty around A.D. 1000. Later, during the Chosun Dynasty around A.D. 1500$\sim$1600, the ginseng cultivators established a method of cultivation. Gasam (cultivated ginseng) was cultivated ginseng on the skirts of their domicile. It was reported that Gasam cultivation was broadened throughout the country around A.D. 1790 on Cheongjosilrok. On the other hand, ginseng properties were reported slightly cool in the oriental herbal medicine books from A.D. 250 to A.D. 1600. But, they were reported slightly warm or warm after A.D. 1600. Korean ginseng cultivation started in the Koryo Dynasty around A.D. 1000. Later, during the Chosun Dynasty, the ginseng cultivators established a standard method of cultivation. Gasam, cultivated ginseng, was grown on the outskirts of their domicile. It was reported that Gasam cultivation was broadened throughout the country around 1790 A.D. in Cheongjosilrok. On the other hand, ginseng properties were reported slightly cool in the oriental herbal medicine books from 250 to A.D. 1600, but they were reported slightly warm or warm after A.D. 1600. Conclusions : It suggests that ginseng properties (slightly cool) before A.D. 1600 are wild ginseng. Also, wood-grown ginseng and ginseng properties (slightly warm, warm) after A.D. 1600 are Gasams.

Teak (Tectona grandis Linn. f.): A Renowned Commercial Timber Species

  • Palanisamy, K.;Hegde, Maheshwar;Yi, Jae-Seon
    • Journal of Forest and Environmental Science
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    • 제25권1호
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    • pp.1-24
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    • 2009
  • Teak (Tectona grandis) is one of the most valuable timber yielding species in the world, with predominant distribution in tropical or sub-tropical countries. However, natural teak available only in few countries like India, Myanmar, Laos People's Democratic Republic and Thailand. Teak grows well in deep, well-drained alluvial soils, fairly moist, warm, tropical climate with pH ranges from 6.5-7.5. Teak is cultivated in many Asian, African and South American countries for timber production. The global teak plantations are estimated to be three million hectare with major share in India (44%) followed by Indonesia (33%). India is considered as richest genetic resources of teak with large areas of natural teak bearing forests (8.9 million ha), plantations (1.5 million ha), clonal seed orchards (1000 ha) and seed production areas (5000 ha). The studies on diversity of teak populations showed that teak is an out crossing species with major portion of diversity present within the populations. The productivity and quality of teak timber varies depending upon the site and environmental conditions. Teak wood is moderately heavy, strong and tough,straight grained, coarse textured and ring porous with specific gravity varies from 0.55 to 0.70. The sapwood is white to pale yellow in colour and clearly demarcated while heartwood is dark brown or dark golden yellow in colour. Teak is one of the most durable timbers in the world, practically, impervious to fungus and white ant attack and resistant to decay. Teak wood is used in ship and boat constructions, furnitures and aesthetic needs. Genetic improvement programmes have been undertaken in countries like Thailand, India, Malaysia and Indonesia. The programme includes provenance identification and testing, plus tree selection and clonal multiplication, establishment of seed orchards and controlled hybridization. Several aspects like phenology, reproductive biology, fruit characteristics, silvicultural practices for cultivation, pest and diseases problems, production of improved planting stock, harvesting and marketing, wood properties and future tree improvement strategy to enhance productivity have been discussed in this paper.

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매실 과육성분의 분석 (Quantitative Analysis of The Fruit Flesh of Prunus mume Siebold & Zuccarni.)

  • 이오규;이학주;신유수;안윤경;조현진;신현철;강하영
    • 한국약용작물학회지
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    • 제15권3호
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    • pp.143-147
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    • 2007
  • 남고 (Prunus mume 'Nanko'), 청축 (Prunus mume 'Viridicalyx'), 매향 (Prunus mume 'Baigo'), 갑주최소 (Prunus mume var, microcarpa 'Koshusaisho') 등 네 종류의 미성숙 매실과육의 Ethyl acetate 추출 성분을 GC/MS-SIM 방법을 사용하여 정량분석 및 비교하였다. 이 연구에 사용된 10종의 표준시약으로 도출된 정량식에 따른 분석의 결과, 매실 품종에 따라 함유성분 및 함유량의 차이를 볼 수 있었다. 이들 성분 중, Maleic anhydride, Citaconic anhydride, 5-Hydroxymethylfur-fural, Vanillin, Linoleic acid, Ethyl linoleate, 그리고 Squalene은 위의 네 종의 매실에서 모두 측정되었다. Palmitic acid는 갑주최소, Isopropyl palmitate는 매향과 갑주최소, Stearic acid는 남고, 청축, 갑주최소에서만 측정되었다. 각 성분의 함량에 있어서는 많은 차이를 보였다. Maleic anhydride의 경우, 매향, 남고, 갑주최소, 청축에서 각각 245.4, 153.6, 20.1, 2.7ppm이 측정되었다. Citraconic anhydride는 매향, 남고, 갑주최소, 청축에서 각각 637.4, 543.1, 150.7, 38.7 ppm이 측정되었으며, Stearic acid는 갑주최소, 청축, 남고에서 105.5, 64.4, 32.3 ppm의 순으로 측정되었다. Squalene은 갑주최소, 매향, 남고, 청축에서 각각 7.6, 1.7, 1.0, 0.5ppm 씩 측정되었고 나머지 미량성분들 또한 매실 종간의 성분 함량 차이가 측정되었다. 정량분석의 특성 상, 본 연구에서의 분석 대상 성분 수는 시판되고 있는 표준품의 수에 따라 제한될 수밖에 없었다. 하지만, 그 제한된 성분 종류 간에도 함유량의 차가 큰 것으로 볼 때 측정된 성분 이외의 성분에 대한 함량 또한 다를 수 있을 것으로 생각된다. 이를 위해서는, 보다 많은 종류의 표준품을 확보하여 좀 더 다양한 성분의 정량분석이 이루어져야할 것으로 사료된다.

보릿가루가 첨가된 침엽수 톱밥을 이용한 꽃송이버섯 재배 (Cultivation of Cauliflower Mushroom (Sparassis crispa) Using Coniferous Sawdust-based Media with Barley Flours)

  • 박현;이봉훈;오득실;가강현;박원철;이학주
    • 임산에너지
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    • 24권2호
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    • pp.31-36
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    • 2005
  • 꽃송이버섯은 $1,3-{\beta}-D-glucan$의 함량이 다른 버섯에 비하여 훨씬 높은 식용버섯이다. 이 버섯은 항암 및 면역증강 효과가 큰 식용버섯으로 알려지면서 최근에는 일본과 한국에서 재배하고 있다. 하지만, 쉽게 재배할 수 있는 방법이 알려지지 않고 일부 기업이 특허권의 범주 내에서 재배를 하고 있는 형편이다. 본 연구는 이러한 문제를 해결하고자 간단한 공정으로 꽃송이 버섯을 재배 할 수 있는 방법을 개발한 것이다. 낙엽송, 소나무, 잣나무의 톱밥을 이용하여 보릿가루와 설탕을 80:20:3의 중량 비율로 섞은 후 수분함량을 65% 내외로 맞춘 병배지에서 꽃송이버섯을 생산할 수 있었다. 톱밥 종류 및 균주에 따라서 자실체 생산성은 다르게 나타났는데 650g의 배지에서 최고 177g(수율 27%)를 수확할 수 있었다. 따라서 실용적인 꽃송이버섯 재배방법으로 이 배지를 적극 추천한다. 단, 생산성 향상을 위해서는 보릿가루의 적정 농도와 톱밥종류에 맞는 균주의 선발이 지속적으로 필요하다.

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오미자의 현탁배양세포로부터 Gomisin J의 생산 (Production of Gomisin J from Cell Suspension Cultures of Schisandra chinensis Baillon)

  • 황성진;표병식;이학주;황백
    • 한국약용작물학회지
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    • 제12권6호
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    • pp.442-447
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    • 2004
  • Cell growth and gomisin J production by suspension cultures of Schisandra chinensis Baillon were investigated under various culture media, initial sucrose concentrations, shaking speeds, and inoculum sizes. Callus was induced from in vitro cultivated leaf segments on MS medium supplemented with $1\;mg/{\ell}$ NAA. The maximum dry cell weight of 2.23 g was obtained at inoculum size of 0.5 g fresh cell weight and in MB5 medium supplemented with $1\;mg/{\ell}$ NAA, 3% sucrose after 8 weeks. The production of gomisin J in suspension cell cultures was maximized in WPM medium containing 5% sucrose. The shaking speed for maintaining maximal cell dry weight was 100 rpm while the best shaking speed for gomisin J accumulation was 140 rpm.

A Study on the Current Status of Mountain-Grown Ginseng

  • Im, Byung-Ok
    • 한국자원식물학회지
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    • 제24권6호
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    • pp.733-740
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    • 2011
  • For the current study, 2,000 questionnaire sheets were printed and distributed while at the same time postal questionnaires were also conducted. The questionnaire survey was conducted July 25 through September 25, 2008, whereby 206 copies of desirable responses were secured. Analysis of the survey made it possible to grasp the overall current status and prospects of the mountain-grown ginseng business, and the level of technology required for cultivating mountaingrown ginsengs. It was learned that, with no legal and institutional arrangements now in force, no precise facts and figures concerning the total area cultivated and the quantity produced are currently available, and that the products are being marketed under the table. Under such circumstances, it is high time for the mountain-grown ginseng cultivation business to contribute to the promotion of incomes of the farming households and the generation of national wealth by developing the business into a systematic industry. This study conducted a survey on the current status of mountain-grown ginseng producers and of their production, thereby contributing to the introduction of policies for mountain-grown ginsengs.

원목재배 표고버섯 물추출물의 항산화 특성 (Antioxidant Properties of Water Extracts from Lentinula edodes Cultivars Grown on Oak Log)

  • 서수영;장영선;유림;가강현
    • 한국균학회지
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    • 제46권1호
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    • pp.51-57
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    • 2018
  • 본 연구에서는 표고버섯 원목재배 방법을 통하여 생산한 버섯의 품종별 항산화 특성을 분석하였다. 원목재배 표고버섯 추출물의 총 폴리페놀과 총 플라보노이드 함량을 측정한 결과는 5.10~10.88 mg GAE/g과 0.76~5.78 mg QE/g으로 나타났으며, 원목재배용 표고버섯 품종 중에서 천백고가 다른 품종들에 비해서 가장 높게 나타났다(총 폴리페놀 10.88 mg GAE/g, 총 플라보노이드 5.78 mg QE/g). 원목재배 표고버섯 추출물의 DPPH 라디칼 소거 활성과 FRAP을 측정한 결과 추출물의 농도에 비례하여 전자공여능과 환원력이 증가하였으며, 원목 재배용 표고버섯 중에서 천백고는 0.2~2.0 mg/mL 농도 범위에서 38.19~90.11%과 0.075~0.231로 다른 품종들에 비해서 가장 높게 나타났다. 본 연구를 통해 원목재배용 표고버섯 품종에 따른 항산화 활성을 확인하였으며, 향후 원목재배용 표고버섯 품종 개발과 항산화 활성 연구에 있어 기초 자료로서 활용될 수 있을 것이다.

두미도 식물상에 관한 생태학적 연구 (An Ecological Study on the Vegetation of Dumi Island)

  • Lee, Il Koo;Kyu ha Park
    • 환경위생공학
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    • 제5권1호
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    • pp.34-45
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    • 1990
  • 본 연구에서 밝혀진 본도의 관속식물류는 66과, 121속, 127종, 16변종, 2품종이고 총 145종류이며 한국의 관속식물(4,191종류; 중정, 1952)의 3.46%에 해당된다. 1945년부터 1960년까지 15년간은 부산, 마산, 충무, 삼천포등지로 연료를 공급하기 위해 많은 나무가 벌채되었으나 연탄의 사용으로 벌채가 중단되고 도내의 임야녹화로 복원되었다. 행정당국의 장려로 곰솔의 식재와 자연번식으로 본도는 곰솔이 우점종으로 나타났다. 상록활엽수는 구전의 서낭당림의 동백나무, 센달나무등의 노수목을 비롯해서 28종이였다. 도내의 중앙에 위치하는 천황산(467m)의 산록지대의 경사지($20{\circ}~30{\circ}$)에 옥수수와 고구마를 주로 가꾸고 있었다. 본도에 분포하고 있는 경제식물은 식용식물 68종, 약용식물 69종, 관상용식물 23종, 공업조자원 1종, 용재자원 15종, 섬유자원 4종, 목초자원 2종, 잡용자원 21종으로 분류되었다.

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Cultivation and Nutritional Value of Prominent Pleurotus spp.: An Overview

  • Raman, Jegadeesh;Jang, Kab-Yeul;Oh, Youn-Lee;Oh, Minji;Im, Ji-Hoon;Lakshmanan, Hariprasath;Sabaratnam, Vikineswary
    • Mycobiology
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    • 제49권1호
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    • pp.1-14
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    • 2021
  • Pleurotus species are commercially essential mushrooms and widely cultivated throughout the world. The production of Pleurotus mushrooms alone accounts for around 25% of that total cultivated mushrooms globally. In America and Europe, Pleurotus species are considered specialty mushrooms, whereas, in Korea, their cultivation is economically profitable, and it is one of the highly consumed species. Pleurotus species are predominantly found in tropical forests and often grow on fallen branches, dead and decaying tree stumps, and wet logs. Biographical studies have shown that the Pleurotus genus is among the more conspicuous fungi that induce wood decay in terrestrial ecosystems worldwide due to its formidable lignin-modifying enzymes, including laccase and versatile peroxidases. Pleurotus species can be grown easily due to their fast colonization nature on diversified agro-substrates and their biological efficiency 100%. Pleurotus mushrooms are rich in proteins, dietary fiber, essential amino acids, carbohydrates, water-soluble vitamins, and minerals. These mushrooms are abundant in functional bioactive molecules, though to influence health. Pleurotus mushrooms are finding unique applications as flavoring, aroma, and excellent preservation quality. Apart from its unique applications, Pleurotus mushrooms have a unique status delicacy with high nutritional and medicinal values. The present review provides an insight into the cultivation of Pleurotus spp. using different agro-waste as growth substances paying attention to their effects on the growth and chemical composition.