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Historical Record of Mushroom Research and Industry in Korea

  • Yoo, Young Bok;Oh, Youn Lee;Shin, Pyung Gyun;Jang, Kab Yeul;Sung, Gi-Ho;Kong, Won-Sik
    • 한국균학회소식:학술대회논문집
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    • 2014.05a
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    • pp.13-13
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    • 2014
  • Two kinds of mushrooms, Gumji (金芝; Ganoderma) and Soji, were described in old book of Samguksagi (History of the three kingdoms; B.C 57~A.D 668; written by Bu Sik Kim in 1145) in Korea-dynasty. Many kinds of mushrooms were also described in more than 17 kinds of old books during Chosun-dynasty (1392~1910) in Korea. Nowadays, mushroom cultivation has been increased through out the world last decade years. Production of mushrooms has also been increased 10-20% and many varieties have been cultivated. Similar trends were also observed in Korea. Approximately two hundred commercial strains of 37 species in mushrooms were developed and distributed to cultivators. Somatic hybrid variety of oyster mushroom 'Wonhyeong-neutari' were developed by protoplast fusion, and distributed to grower in 1989. The fruiting body yield index of somatic hybrids of Pleurotus ranged between 27 and 155 compared to parental values of 100 and 138. In addition, more diverse mushroom varieties such as Phellinus baumi, Auricularia spp., Pleurotus ferulae, Hericium erinaceus, Hypsizigus marmoreus, Grifola frondosa, Agrocybe aegerita and Pleurotus cornucopiae have been attempted to cultivate in small scale cultivation. Production of mushrooms as food was 190,111 metric tons valued at 800 billion Korean Won (one trillion won if include mushroom factory products; 1dollar = 1,040 Won) in 2011. Major cultivated species are Pleurotus ostreatus, Pleurotus eryngii, Flammulina velutipes, Lentinula edodes, Agaricus bisporus, and Ganoderma lucidum, which cover 90% of total production. Since mushroom export was initiated from 1960 to 1980, the export and import of mushrooms have been increased in Korea. Technology developed for liquid spawn production and automatic cultivation systems lead to the reduction of the production cost resulting in the increasement of mushroom export. However some species were imported because of high production cost for these mushrooms requiring the effective cultivation methods. Developing of effective post-harvest system will be also directly related to mushroom export. In academic area, RDA scientists have been conducting mushroom genome projects. One of the main results is the whole genome sequencing of Flammulina velutipes for molecular breeding. An electrophoretic karyotype of of F. velutipes was obtained using CHEF with 7 chromosomes, with a total genome size of approximately 26.7 Mb. The mususcript of the genome of F. velutipes was published in PLOS ONE this year. For medicinal mushrooms, we have been conducting the genome research on Cordyceps and its related species for developing functional foods using this mushroom. In 2013, Korea Food and Drug Administraion (KFDA) approved Cordyceps mushroom for its value as an immune booster.

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Analysis of research trends in methane emissions from rice paddies in Korea

  • Choi, Eun-Jung;Lee, Jae-Han;Jeong, Hyun-Cheol;Kim, Su-Hun;Lim, Ji-Sun;Lee, Dong-Kyu;Oh, Taek-Keun
    • Korean Journal of Agricultural Science
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    • v.44 no.4
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    • pp.463-476
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    • 2017
  • Climate change is considered as the greatest threat to our future and descendants. The Korean government has set a target for 2030 to reduce emission of greenhouse gases (GHGs) by 37% from the business-as-usual levels which are projected to reach 851 million metric tons of $CO_2eq$ (Carbon dioxide equivalent). In Korea, GHGs emission from agriculture account for almost 3.1% of the total of anthropogenic GHGs. The GHGs emitted from agricultural land are largely classified into three types: carbon dioxide ($CO_2$), methane ($CH_4$), and nitrous oxide ($N_2O$). In Korea, rice paddies are one of the largest agricultural $CH_4$ sources. In order to analyze domestic research trends related to $CH_4$ emission from rice paddies, 93 academic publications including peer reviewed journals, books, working papers, reports, etc., published from 1995 to September 2017, were critically reviewed. The results were classified according to the research purposes. $CH_4$ characteristics and assessment were found to account for approximately 65.9% of the research trends, development of $CH_4$ emission factors for 9.5%, $CH_4$ emission reduction technology for 14.8%, and $CH_4$ emission modeling for 6.3%, etc. A number of research related to $CH_4$ emission characteristics and assessment have been studied in recent years, whereas further study on $CH_4$ emission factors are required to determine an accurate country-specific GHG emission from rice paddies. Future research should be directed toward both studies for reducing the release of $CH_4$ from rice paddies to the atmosphere and the understanding of the major controlling factors affecting $CH_4$ emission.

A View on Hyung-Ki in Donguibogam (『동의보감(東醫寶鑑)』의 '형기론(形氣論)'에 대한 소고)

  • Park, Jun Gyu;Cha, Wungseok;Kim, Namil
    • The Journal of Korean Medical History
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    • v.23 no.1
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    • pp.55-65
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    • 2010
  • The narration of "Donguibogam" is focused on humans whilst medical books before it focused on diseases. This is shown from the first subtitle of External Body(身形門) chapter, [The Origin of Hyung-Ki(形氣之始)]. The contents of [The Origin of Hyung-Ki] explains that the human body is composed of 'Hyung(形)' and 'Ki(氣)' This perspective is shown throughout "Donguibogam". First, in the aspect of construction, the viewpoint is shown from the JipRye(集例). It divides the body into inside and outside, which is a result of Hyung-Ki perspective. This continues in the table of contents. Naegyeongpyeon(內景) and Oehyeongpyeon(外形) describes the inside and outside of the body, in other words 'Hyung-Ki'. Japbyeongpyeon(雜病) describes complex illnesses with mixed insides and outsides. Tangaekpyeon(湯液) and Chimgupyeon(鍼灸) can be understood as division of treatment methods into inside and outside. When we look at the contents, the human body is created on the basis of the essence and vital energy of the world. Cheon-Ki becomes the 'Ki' that forms the functions of the body, while Ji-Ki becomes the 'Hyung' that constructs the bodily structure. It is considered that 'Hyung' is composed of SaDae(the body essence, vital energy, mentality and blood), and 'Ki' is composed of OSang(the five Jang organs and six Bu organs). 'Hyung' and 'Ki' show various appearances according to physiology and pathology. 'Hyung' is especially shown by obesity or thinness, 'Ki' by color. The obese may have Ki deficiency, coldness, dampness or phlegm. The thin could have blood deficiency, heat, fire or dryness. The color could show the pathology of the five Jang organs by the five colors, but it can simply be divided into black and white, where black means Eum deficiency, and white means Yang deficiency. It is said that the distinctive feature of traditional Korean medicine is that it is a constitutional medicine. In this perspective, further study on 'Hyung-Ki' is of value. If "Donguibogam" was the foundation of the Sasang Constitutional Medicine(四象醫學), study on 'Hyung-Ki' means searching for the origin of the Sasang Constitutional Medicine. Also, the study on Sasang Constitutional Medicine and Hyungsang medicine(形象醫學) will show the modern image of "Donguibogam". Hence, interchange study between "Donguibogam", Sasang Constitutional Medicine and Hyungsang medicine through the term 'Hyung-Ki' could hopefully lead to academic progression.

A Survey on the Utilization of Maternity and Child Health Service, and Service Requirement (보건소 모자보건실 서비스 이용실태 및 요구도 조사 연구)

  • Cho, Seong-Min;Kim, Il-Ok
    • Korean Parent-Child Health Journal
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    • v.6 no.1
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    • pp.1-17
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    • 2003
  • Thus, I studied Health services supplied by local health centers and the requirements of the inhabitants visiting the health care facilities. The purpose of this study was to provide basic material for the establishment of Health care policy and the development of health care businesses. The target places for this study were 4 health centers; Chungrang-Gu, Nowon-Gu, Eunpyung-Gu, Songpa-Gu, with 509 mothers who were visiting the Centers. The question items of this study concerned a total of 124 health-related services provided by the Health Centers. The data was collected for a total of 92 days; July 1st~September 30th, 1999. 800 questionaries were distributed and 559 answered, 509 were analyzed finally. The collected data were processed using the SAS program to get mean, standard deviation, percentage. Open questions were made to reveal the opinions of mothers using the health care center. The results were as follows : 1. Among the participants of the study, 49.7% were 25~29 years of age, 84.3% were house wives by current occupation, 56.2% were from 4~6 person households. 52.1 were educated at a high school level, and 43.6% were educated at a collage level. 2. The highest percentage(53.6%) of the users were spontaneous in their utilization of health care center. The major reason for using the Health care center is that it is free to 65.8% of those covered and of low cost to 19.3% of those covered. 3. The satisfaction level of those using the health care center appeared to be generally high. The general average value showed up as $3.027{\pm}0.519$. 4. The level of recognition of the value of the heath care center services was high, particularly in the basic item of diagnoses of pregnancy, particularly in the basic item of diagnoses of pregnancy. However, the satisfaction level of health care education In pregnancy is low at 20~40%. In the meantime, the level of recognition in breast- feeding benefits is high at 76.8%. 5. The rate of realizing health care center's service campaign was generally low at 10~20%. 41.3 of the people knew the advertizing material of the health care centers. 32.4% of the people knew the advertizing material of the health care centers. 32.4% of the people knew the campaign of health care center for importance of breast-feeding benefits. 30.1% of the people knew the campaign for testing congenital mechanism disease. In the meantime about 50% was recognised the health care centers campaign for the importance and time of infants vaccination. 6. The need for enhancement of health care center services was shown to be high as $3.266{\pm}0.676$ as an average, chicken pox vaccination being the most highly requested at $3.565{\pm}0.587.$. 7. Among the open questions, the additional service to be provided were as follows ; increase of campaign of health care center services, furnishing advertizing books in public locations, providing shuttle bus service to the health care centers, extension of desire for preventative injections, rest and play areas for the children of the families serviced, consultation rooms, etc.

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On the Study of the Organization and the Examination System of Gwansanggam in the Joseon Dynasty: Focusing on the Astronomy Division (조선시대 관상감의 직제 및 시험 제도에 관한 연구: 천문학 부서를 중심으로)

  • Lee, Ki-Won
    • Journal of the Korean earth science society
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    • v.29 no.1
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    • pp.98-115
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    • 2008
  • Gwansanggam(觀象監) was a royal office in the Joseon(朝鮮) dynasty, which was in charge of astronomy(天文), geographical feature(地理), calendar-making(曆數), fortune telling(占算), meteorological observation(測候), and so forth. The royal office consisted of three divisions according to the studies (學): Astronomy(天文學), Geography(地理學), and Astrology(命課學). Among them, the Astronomy division carried out the works corresponding partly with academic fields of Earth Science nowaday. In this paper, we investigate the organization and the examination system of Gwansanggam focusing on the Astronomy division. Because Gwansanggam was one of royal offices, the organization, functions, and the rules of the government service examination(科擧試驗) were stipulated in codes published during the period of the Joseon dynasty. From various codes, official books, and records of Sillok(實錄), we firstly find that the scale of Gwansanggam in the number of officials was larger than the known one because the number of petty officials (胥吏), slaves, and artisans (匠人) were neglected in previous studies. Next, we conduct research on the textbooks used in the government service examination of Gwansanggam, particularly of the Astronomy division. Despite of the shortness in contents, we estimate that this is the first systematic attempt to the study on the examination textbooks of Gwansanggam. Finally, we also make some introductions on the regulations applied to the government service examinations of the offices belonging to manual rites (禮典) including Gwansanggam.

Study of Hospitality Security (Hospitality Security의 학문적 고찰)

  • Kim, Hyeong-Seok;Chun, Yong-Tae
    • Korean Security Journal
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    • no.54
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    • pp.37-56
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    • 2018
  • Safety is considered as a very important factor when tourists select tourist spots, which means that the desire for safety in the tourism industry is very high. Therefore, a specialized field for the safety of the tourism industry is necessary. Already, there are staff members who are responsible for safety in various tourism sectors, but they have been led through knowledge based on work experience without professional education. In order to train specialists who are responsible for the safety of the tourism industry, research in related fields is indispensable, and universities in charge of research and education systematically construct surveys of related fields, and through experts I have to train. In the field meaning tourism security, there is Hospitality Security. Hospitality means 'to hospitality', 'to be entertaining', Hospitality Industry is used to cover the tourism industry in its exhaustive sense. Security is a term that refers to safety and security. Therefore, Hospitality Security which the two meanings together, that is, korean word hospitality security, tourism security can be said. Already in the US experts in the field of Hospitality Security explained the importance through related books. Currently in Korea, well-known tourism related universities operate subjects in the Hospitality field, and the security field also manages subjects at several universities. So, We collected the subjects managed at each university, analyzed them, and selected subjects of Hospitality Security. If the results of research through continuous research accumulate, the value as academic will be further increased, and it will be possible to have a role responsible for the safety of the tourism industry by producing experts accordingly.

A Study on the Image Communication of Military Style in 20th Century (20세기 밀리터리 스타일의 이미지 커뮤니케이션에 대한 연구)

  • Cho, Jung-Mee;Yoo, Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.8
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    • pp.1309-1321
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    • 2008
  • Military style is not limited to a single period but represents various image communications related to items, synthetic images and different periodical culture backgrounds. The purpose of this study is to define the communicational function of the military style beginning from the 1st world war up to the modern days, and furthermore explain the characteristics and contents of military styles in different periods by studying the nowadays various symbols of the military style in denotative and connotative aspects. The research method is documentary studies through the literature and academic paper, and examined masters' and doctors' thesis, domestic and overseas books and fashion magazines, photographs and materials collected from the internet. As a result, first, the military style is a significant fashion code in understanding modern fashion by serving as a strong communication function representing people’s ritual through various image items called the 'military look'. Second, the meaning of the image communication through military look changed throughout the different periods. During the 1st and 2nd World war the military look supported Fascism by serving as a media representing extreme patriotism and at the same time social images like functionalism, women liberation, regulation and saving. During the cold war period it was used by young progressives like hippies and punks to send an opposing message towards war and commercialism. Since then up to the 80s it was a medium representing the ‘new role of women’, who possess same social rights and power as the men. However in the 90s the military style had to go through a paradigm transition period. Since this period it got affected by the post modernism and designers, consumers alike adopted military style to create unique beauty It can also be said that it began to be used as a pure fashion code representing intertextuality. It was rather expressed as a metonymy than a metaphor and combined with elegance and feminine factor, which contrasts to the original military concept, it now represents totally new hybrids such as difference, dissemination and varieties.

A Study on the Publication and Composition of JujaDaejeon Anthologies in the Joseon dynasty (조선시대 『주자대전』 선집서의 간행과 구성에 관한 연구)

  • Choi, Kyunghun
    • Journal of the Korean Society for Library and Information Science
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    • v.54 no.2
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    • pp.435-455
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    • 2020
  • The purpose of this study is to examine the publication, composition, method of composition, and acceptance patterns of JujaDaejeon anthologies edited by Joseon scholars in the Joseon dynasty. When a large amount of JujaDaejeon was published in the 16th century, anthologies of JujajaDaejeon was compiled, published and learned as a way to understand it. A total of 13 kinds of JujajaDaejeon anthologies were published, including six kinds in the early Joseon period and seven kinds in the late Joseon period. And the composition of main anthologies showed a trend that was supplemented by Jeong Gyeong-se's Jumunjakhae from Lee Hwang's Jujaseojeolyo, and aggregated into Song Si-yeol's Jeoljaktongpyeon(boyu). JujaDaejeon consists of total 3,645 works except for poems. Among them, 1,734 works were selected by 13 anthologies. The theme of a work with a high cumulative number of selections is the virtue and attitude of the king, policy proposals, the appointment of talent, the duty of subjects, criteria for evaluating historical figures, opposition to harmony with Jin and territorial restoration, and academic discussions. This study is expected to be meaningful in the field of the research on the acceptance of the foreign books and acceptance of the Zhu Xi's works in the Joseon dynasty.

The Relationship between Urban Married's Nonnative Sense of the Traditional Filial Piety and their Affiliation with Relatives (도시 기혼남녀의 전통적 효 규범의식과 친척유대간의 관계에 관한 연구)

  • Ahn Hei Sook
    • Journal of the Korean Home Economics Association
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    • v.43 no.5 s.207
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    • pp.183-198
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    • 2005
  • The purpose of this study was to discuss the relationship between Korean people's normative sense of the traditional filial piety and their affiliation with relatives. For this purpose, the researcher reviewed ethics books during the Chosun dynasty such as Naehoon Women's Ethics), Dongmongsonsup (Children's Cardinal Moral Principles) ,Kyokmongyokyol (Juvenile's Learning) and Gyuenyoso (Instructions for Daughters of Marriageable Age), Based on this review a questionnaire was designed. For the survey,566 returned questionnaires from married people between their 20's and 70's living in Seoul and Wonju Si were sampled The collected data were analyzed using the SAS program for means and SDs of each area in order to examine the overall tendency, and were subject to one-way ANOVA to determine the relationship between their normative sense of the traditional filial piety and their affiliations with relatives depending on their demographic variables, In addition to this correlation analysis, the data underwent regression analysis to determine the significant factors affecting the subjects' sense of filial piety and their affiliation with relatives. The results of this study can be summarized as follows ; First, the subjects were found to have a normal or higher sense of filial piety in overall terms, which suggests that the Korean morality of filial piety may be positive. In particular, the subjects' sense of filial piety was higher for living parents than for dead ones. Namely, they wanted to give more respect, honor and support to their parents than give a cordial funeral or memorial service to deceased parents. Second, older Koreans were more aware of filial piety, and men were more conscious of filial piety than women. Buddhists or atheists tended to be more faithful to their parents. Generally, those with lower academic background and living with larger families had a higher normative sense of filial piety. On the other hand, those in their 60's and 70's were most affiliated with their relatives, while youth and middle-aged people were less affiliated with their relatives. Men were more affiliated with their relatives than women, and first sons or daughters were more affiliated with their relatives. Besides, those living with larger families were more affiliated with their relatives. Third, the subjects' normative sense of filial piety, particularly for deceased parents, was highly correlated with their affiliation with relatives, and such a normative sense of filial piety was most conspicuous in their funeral rites.

A research on the medical theory of Choo-Joo(鄒澍) -- (추주(鄒澍)의 의학사상(醫學思想)에 대한 연구(硏究) [약리설(藥理設)을 중심(中心)으로])

  • Lim, Jin Seok;Park, Chan Kuk
    • Journal of Korean Medical classics
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    • v.9
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    • pp.381-429
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    • 1996
  • Choo-Joo(鄒澍;1790-1844) was the medicine scholar who lived in the late peroid of the Chung-Dynasty and wrote "Bon-Kyung-So-Jeung(本經疏證)", "Bon-kyung-Sok-So(本經續疏)", "Bon-Kyng-Seo-So-Yo(本經序疏要)". In the books mentioned above, He annotated the chief effectiveness of herbal medicine(本草) which had been presented on "Shin-Nong-Bon-Cho-Kyung(神農本草經)" and "Myoung-Eui-Byul-Lok(名醫別錄)". He defined medical action of 315 herb-items with the many theories of various scholars. Scholars whom Choo-Joo has qoutated belong to the school of study of Chinese classics, and they have regarded "Hwang-Je-Nae-Kyung(黃帝內經)", "Shin-Nong-Bon-Cho-Kyung(神農本草經)" and "Sang-Han-Lon(傷寒論)" as great important cannon and have lived during the Myoung Chung Dynasty. The distinctive character of Choo-Joo belongs to similar academic traditions. It seems that he was appected mainly by "Bon-Cho-Gang-Mok(本草綱目)" written by Lee-Si-Jin(李時珍), Mok-Jung-Soon(繆仲淳)'s "Sin-Nonng-Bon-Cho-Kyung-So(神農本草經疏)", You-Yak-Guem(劉若金)'s "Bon-Cho-Sul(本草述)" and Yang-Si-Tae(楊時泰)'s "Bon-Cho-Sul-Gu-Won(本草述鉤元)". He contributed in two big sides. First, Choo-Joo(鄒澍) have achieved much contribution in biliographical study of Chinese classics(考證學). He analyzed the medical theory of herb-medicine, combining with "Nae-Kyung(內經)", "Sang-Han-Lon(傷寒論)" and many theory of various scholars in order to make research on the chief effectiveness that had been presented in "Shin-Nong-Bon-Cho-Kyung(神農本草經)". Therefore the practical application of medical theory and term which had been represented on classics were offered. Secondary, Choo-joo did great accomplishment in pharmacology. The point of his theory was grasping the effect of a medicine through distinctive one beyond general feature. He set up standards that grasp distintive feature as form, color, energy and taste, place of production and temper. And on the basis of these standards he investigated distinctive feature on various fields, then he induced 'the Uem-Yang-0-Haeng Theory(陰陽五行說)' from distictions. According to the these method of classification, form(形) stand for the resultant shape of herbal function, color(色) represent the active direction of herb, energy and taste(氣味) imply the ultimate active function of herb, the place of production(産地) and the period of occurrence(發生時期) symbolize symptoms. When he applied these method to seek for effetiveness, he regarded the field which revealed most representative feature as of great importance, and Combining remained distinctions with one another, he determined more accurate medicinal value. These method of obsevation solved contradiction which occured by equaly appling all medical herbs for the regular standard. The most important theory that represented in Choo-Joo(鄒澍) is to induce and to certify the distintive feature of herb into the 'Uem-Yang-0-Haeng Theory'. That is, concluded as "spring(生), growing(長), change(化), collecting(收) and storing(藏)". As the results of these studies, he made clear the action of medicine more concretly and made 'the Uem-Yang-0-Haeng Theory(陰陽五行說)' more concret and actual for applying. And he contrbuted to establish the standard for grasping the effect of medicines.

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