• Title/Summary/Keyword: wood decay

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Effect of Rice Fermented using Poria cocos (a Wood-decay Fungus) Mycelium on Fermentation of Doenjang (Soybean Paste) (복령(Poria cocos) 균사체 발효쌀의 첨가가 된장의 품질에 미치는 영향)

  • Kwon, O-Jun;Kim, Mi-Ae;Kim, Tae-Wan;Kim, Dae-Gon;Son, Dong-Hwa;Lee, Seon-Ho
    • Food Science and Preservation
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    • v.18 no.1
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    • pp.18-25
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    • 2011
  • We investigated changes in doenjang quality upon addition of rice fermented with Poria cocos mycelium. Sensory evaluation showed that rice addition to 15% (w/w) was optimal. The content of free amino acids was 1,899.17 mg% in doenjang fermented for 90 days with P. cocos mycelium. The rice contained seven essential amino acids: leucine, valine, phenylalanine, isoleucine, lysine, threonine, and methionine. The levels of essential amino acids increased after fermentation with P. cocos mycelium. Vitamin A (7.47 RE/100 g), Vitamin D (0.45 mg/100 g), and Vitamin E (5.73 mg/100 g) were detected in the experimental preparation but not in the control. In terms of electron-donating ability, the highest scores were 73.8% (in a water extract) and 76% (in an ethanolic extract) of doenjang fermented with P. cocos mycelium. Nitrite-scavenging ability was higher in the ethanolic extract than in the water extract of rice fermented with P. cocos mycelium.

A Study on Functionality of the Ulreungdo Seokganju as Korean Traditional Red Pigment (한국 전통 적색광물안료 울릉도석간주의 기능성 연구)

  • Do, Jin-Young;Kim, Soo-Jin;Lee, Sang-Jin;Ahn, Byung-Chan;Yun, Seong-Chul;Kim, Kwang-Jong
    • Journal of the Mineralogical Society of Korea
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    • v.22 no.2
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    • pp.153-162
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    • 2009
  • The main compositions of "Seokganju", a Korean traditional red mineral pigment, are iron oxides. To investigate its mineralogical and functional properties, we had got its ore from Juto cave in Ulreoung island, which was a famous field of it in Korean documents. The ore occurs as a paleosol between the olivine basalt and amphibole trachyte in discontinuously. It is reddish brown and yellowish brown and consists mainly of clay minerals with minor debris. Its reddish and yellowish brown color are due to the hematite and ferrihydrate, respectively. These iron oxides are precipitated as ferrihydrate from the ferrous water in the paleosol and partly changed to hematite. The color reproduced in timber by using seokganju pigment with traditional tools and methods is similar to that in heritage building. The moistureproofing and fire resistance of Ulreungdo seokganju is far better than that of artificial seokganju. Moreover, the combustion tests show that the artificial seokganju promote the ignition and combustion of the timber. Ulreungdo seokganju is regarded as a pigment with fungicidal efficacy because growth of two wood decay fungi (cov. and typ.) are inhibited in solid medium with it.

Study on Attribute of the Time and Change of the Qi of Meridians(經氣) according to the Cycle (시간속성과 주기(週期)에 따른 경기(經氣).오유혈(五兪穴) 변화에 대한 연구)

  • Choi, Yong-Dae;Kim, Byoung-Soo;Kang, Jung-Soo
    • Journal of Haehwa Medicine
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    • v.19 no.1
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    • pp.35-48
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    • 2010
  • In Neijing("內經"), it explains heaven, earth, four seasons(天地四時) take part in human's birth, it gives influence on life support, and have organic relationship between body and movement of sun and earth(日月運行) of heaven and earth. Human body and the natural world corresponds, so the time changes in the natural world give immediate influence to human body, and correspond changes happen inside human body. This has no exception in qi of human(人氣), meridians, the viscera and organs(臟腑) and so on. In time, there are many kinds of cycles such as year, month, 10 days and a day. Yin and yang and the five elements in each cycle shows changes of prosperity and decay and transformation. In a year, there are spring, summer, late summer, fall and winter which are each included to wood, fire, earth, metal and water. Spring and summer belong to yang(陽), and fall and winter belong to yin(陰). A day can be divided into the crowing of the cook, dawn, noon, and twilight. After midnight yin falls and yang rises(陰盡陽生), and after noon yang falls and yin rises(陽盡陰生). Ups and downs of the qi and blood and human body change with time and the region of whereabout is different. In one month, when the moon is full qi of blood rises and when the moon comes down qi of blood falls. The qi of meridian(經氣) has a periodical changes with regular movement in meridian. This is a result of continuing movement of meridian and the nutrient(營) and the defense(衛) in human body, stars correspond with ups, and correspond with flow of water of meridian(經水) with downs. In a day the twelve meridians(十二經脈) in hour of yin(hours 3~5), it starts with qi and blood of lung meridian(手太陰肺經) prosperous, each qi and blood of meridian prosperous in order. In eight extra meridians(奇經八脈), Bideungpalbup(飛騰八法) per 5 days, Younggoopalbup(靈龜八法) per 60 days qi of pulse(脈氣) changes correspond. The qi and blood of five meridian points(五兪穴) is 5 days, so.

Production of Gastrodia elata Tuber using Armillaria spp. (Armillaria 속균을 이용한 천마의 생산)

  • Sung, Jae-Mo;Jung, Bum-Shig;Yang, Keun-Joo;Lee, Hyun-Kyung;Harrington, T.C.
    • The Korean Journal of Mycology
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    • v.23 no.1 s.72
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    • pp.61-70
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    • 1995
  • The genus Armillaria is important because they produce Gastrodia tubers. Seventy two isolates of Armillaria were obtained from fruit bodies grown on decayed wood in Korea. Twenty four isolates from Pinus koraiensis were identified as A. ostoyae. Two isolates from G. elata growing in the field were identified as A. mellea. Seven isolates from Acer ginnala and Quercus spp. were identified as A. tabescens. Thirty nine isolates were identified as A. gallica. Armillaria gallica was isolated from Quercus spp., Ainus japonica, Vitis amurensis and Prunus sargentii. Armillaria spp. isolates were divided into four groups based on the cultural characteristics. Group II (A. gallica KNU-A110) was better than the other groups for mycelial growth and rhizomorph formation. Isolate KNU-A110 proved to be good for production of G. elata tubers. This fungus forms mycelial fan in the plant tissue and rhizomorphs in contact with G. elata tubers. Gastrodia spp. was found in thirteen sites in Kangweon province in Korea. The plants were divided into three different kinds based on stem color. Plants with stems of brownish orange and greyish yellow were identified as G. elata, and those with greyish green colored stems were identified as G. gracilis. Gastrodia was collected mainly from humus soils rich in leaf debris, and slopes facing south from mid-May to mid-July. Once the new tubers are formed from the ancestry tuber, the ancestry tuber begins to decay. The offspring tuber, apparently gaining nutrients through rhizomorphs, begins to grow in length and slowly to enlarge. It takes three years for the offspring tuber to become ancestry tuber.

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