• Title/Summary/Keyword: Broussonetia Kazinoki

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Taxonomic study of Broussonetia (Moraceae) in Korea (한국산 닥나무속(Broussonetia, 뽕나무과)의 분류학적 연구)

  • Yun, Kyeong-Won;Kim, Muyeol
    • Korean Journal of Plant Taxonomy
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    • v.39 no.2
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    • pp.80-85
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    • 2009
  • Three Korean Broussonetia species (Moraceae) were reexamined based on morphological characters. The plants which has been used for making traditional paper Hanji in Korea are considered hybrid species between B. kazinoki and B. papyrifera, its natural habitat was firstly discovered in Is. Gageo (Jeonnam Province). Thus it is newly described as B. ${\times}$ hanjiana M. Kim. Its Korean name is changed into Daknamu instead of Kkujidaknamu. Therefore, Korean name for B. kazinoki is also changed into Aegidaknamu instead of Daknamu. Dioecious plants of Broussonetia kazinoki which were found in Is. Gageo are named as B. kazinoki for. koreana M. Kim (Gageo-Aegidaknamu).

A Study on the Paper & Muju Characters(武周字) on which the Mugujongkyong from the Sokgat'ap (석가탑 "무구정경"바탕종이 및 무주자의 사용 문제)

    • Journal of Korean Library and Information Science Society
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    • v.30 no.3
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    • pp.323-344
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    • 1999
  • First, having noticed that the paper on which the Mugujongkyong from the Sokgat'ap was Broussonetia Kazinoki Siebold, produced under the Tochim process, it is confirmed that the paper used for printing the Mugujongkyong form the Sokgat'ap was Broussonetia Kazinoki Siebold produced in Shilla, by introducing the common fact that the papers on which : written in 755 A.D.) and in Soochung-sokt'ap Hwaomasa were written were the same paper fabricated by the Tochim process. Therefore it is proved that the printing place of the Mugujongkyong from the Sokgat'ap was also Kyongju region in Shilla. Furthermore it is proved that the year of storing Broussonetia kazinoki Siebold n which tarani of the Mugujongkyong was written was circa 705 A.D., provin12g that Broussonetia Kazinoki Siebold was in production in Shilla in 8th Century. Also by confirming the fact that very thin -- mere 0.019mm thick -- Broussonetia Kazinoki Siebold was in production in Shilla in 8th Century, it is proved that Shilla has ability to produce Broussonetia Kazinoki Siebold for Woodblock printing purpose. Second, concerning the Muju Characters written in the ugujongkyong from the Sokgat'ap, mixed use of the Muju Characters was noticeable in written in 755 A.D. from the Sooch'ungsokt'ap at the Hwaomsa written in the same era and the Tripitaka Koreana in Japan was printed in 690's A.D. because of appearance of the Muju Characters in the Saddhamapun-darika is erroneous.

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Test of the hybrid origin of Broussonetia × kazinoki (Moraceae) in Korea using molecular markers

  • WON, Hyosig
    • Korean Journal of Plant Taxonomy
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    • v.49 no.4
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    • pp.282-293
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    • 2019
  • Broussonetia × kazinoki Siebold has long been utilized as a major component in the manufacturing of Korean traditional paper, hanji, and has been suggested as a hybrid species of B. papyrifera and B. monoica. By applying three molecular markers, chloroplast (cp) ndhF-rpl32 IGS, a nuclear ribosomal internal transcribed spacer, and the TOPO6 gene, the hybrid origin of B. × kazinoki is tested. As a result, B. × kazinoki in Korea is demonstrated to be a hybrid of B. monoica × B. papyrifera, most likely formed naturally in Korea. The cp haplotypes detected provided information about the origins and genetic diversity of the maternal lineage B. monoica and paternal lineage B. papyrifera. The two nuclear markers were supplemented to each other, leading to the discovery of introgression in Broussonetia.

Preparation and Evaluation of Polymer Microspheres Containing Broussonetia Kazinoki Root Extract (닥나무 뿌리 추출물을 함유하는 고분자 마이크로입자 제조 및 평가)

  • Lim, Hyung Jun;Lee, Jin Young;Kim, Han Byul;Kim, Do-Hoon;Shin, Song Seok
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.39 no.2
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    • pp.89-96
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    • 2013
  • This study demonstrate that polymeric microspheres composed of poly (ethylene adipate) (PEA) and poly (methyl methacrylate) (PMMA) can encapsulate and remarkably stabilize Broussonetia kazinoki root extract. We compared the long-term stability and the activity of Broussonetia kazinoki root extract in polymeric microspheres fabricated with different polymer ratio of PEA and PMMA. PMMA was incorporated to the PEA microsphere in order to reinforce the physical strength of microsphere, and there was no noticeable negative effect on the activity of Broussonetia kazinoki root extract. Optical microscope (OM), polarized microscope (PM), and scanning electron microscope (SEM) results showed that PMMA incorporated microspheres were very spherical and had smoothsurface. On the other hand, PEA microspheres showed relatively irregular morphology due to the low physical strength of microspheres. Moreover, the mushroom tyrosinase activities were measured for testing the inhibitory activity of Broussonetia kazinoki root extract encapsulated in polymeric microspheres, and these microspheres showed the effective suppression of mushroom tyrosinase activity. Consequently, polymeric microspheres produced in this study may be beneficial for the research of improving stability and protecting labile substances incorporated into the polymeric microspheres.

Analysis of studies on the by-products of the Broussonetia kazinoki Siebold or Broussonetia papyrifera (L.) Vent. (닥나무 부산물에 대한 문헌 연구)

  • Lee, Nam-Hun;Ha, Hye-Kyung;Lee, Ho-Young;Jung, Da-Young;Choi, Ji-Yoon;Choi, Young-Jae;Jeong, Seung-Il;Shin, Hyun-Kyoo
    • Korean Journal of Oriental Medicine
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    • v.14 no.1
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    • pp.49-58
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    • 2008
  • Objective : To provide information about the accessory product of Broussonetia kazinoki Siebold or Broussonetia papyrifera (L.) Vent by analyzing old books of oriental medicine, domestic/international papers and related patents Methods : Old books related to the accessory product in the field of oriental medicine were reviewed. Research papers regarding the pharmacological activity of the by-products were reviewed and analyzed. Patents about the residual products were examined and classified by year and subject Results : Seven kinds of by-products from Broussonetia kazinoki Siebold or Broussonetia papyrifera (L.) Vent has been used as medicines in oriental medicine. Recently, anti-oxidating, anti-cancer, anti-mutagenic and anti-inflammation activity of the residual product of these plants has been investigated through scientific research. There were 19 patents related with the accessory products of these plants, which were in the subjects of functional cosmetics, anti-inflammation, cleansing goods, hair restorers or improvement of learning ability. Further investigations about the activity of these plants are needed in bone metabolism, water balance and hemostasis in the future. Conclusion : Residual products from these plants is being used in various ways. However, more studies on the efficacy and mechanism, as well as safety, of these plants should be conducted precisely in the future.

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Development of the Products Using Jumchihanji( I ) -Classification and Chemical Components, Pulping of Meogujaengi- (줌치한지를 이용한 제품개발(I) -머구쟁이의 분류와 조성분, 펄프화를 중심으로-)

  • Jeon, Chul
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.35 no.2
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    • pp.58-64
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    • 2003
  • Because of its tendency of making strong Hoc on the fiber surface with fines, Meogujaengi has not been valued as a material of Hanji. As an attempt to manufacture high value-added products using the material made from Jumchihanji, this study performed morphological classification and chemical component analysis and selection of pulping of Meogujaengi method. As a result, it can be concluded as follows, 1. Meogujaengi is assumed to be a local variety of Broussonetia karinoki and its outward appearance is distinguished from Broussonetia kazinoki. 2. The bast fiber of Meogujaengi is longer and thinner than that of Broussonetia papyrifera or Broussonetia kazinoki. However, because of the coarse linear of fiber tissue, there are many clusters. 3. The cluster phenomenon of Meogujaengi is nothing to do with its chemical components. Although the contents of its chemical components are different from those of Broussonetia kazinoki, no component was found that obstructs pulping. 4. The pretreatment for suppressing the occurrence of clusters of Meogujaengi was effective, and it was necessary to do secondary beating using hollander beater after beating mixed with PAM using knife beater.

Free Sugars, Amino Acids, Organic Acids, and Minerals of the Fruits of Paper Mulberry (Broussonetia Kazinoki Siebold) (닥나무 열매 (저실자)의 유리당, 아미노산, 유기산 및 무기질의 조성)

  • 윤숙자;김나영;장명숙
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.6
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    • pp.950-953
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    • 1994
  • This study was carried out to investigate the proximate composition , free sugars,amino acids, organic acid, minerals and extracted color of the fruit of paper mulberry (Broussonetia Kazinoki Siebold) . the proximate compositins were 6.1% of moisture, 15.9% of crude protein, 28.5% of crude fat, 8.9% of crude ash and 40.6% of carbohydrates in the fruit of paper mulberry. Free sugars showed low content as 0.1% of glucose , 0.1% of sucrose, 0.1% of fructose and 0.01% of sorbitol, respectively. In amino acid composition of the fruit of paper mulberry, glycine was the highest in the content, followed by methionine, aspartic acid and alanine, The ratio of essential /total mino acids was 0.43 . The richestmineral contained in the fruit of paper mulberry was Ca and followed by K and Mg. Optical density (490-500nm) of the extracted color with 50% ehtanol and 80 % ethanol were 0.75 and 0.30 , respectively.

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Nondestructive Bending Strength Evaluation of Woodceramics Made from Woody Part of Broussonetia Kazinoki Sieb. - Effect of Resin Impregnation Ratio -

  • Byeon, Hee-Seop;Kim, Jae-Min;Won, Kyung-Rok;Oh, Seung-Won
    • Journal of the Korean Wood Science and Technology
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    • v.39 no.5
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    • pp.398-405
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    • 2011
  • Nondestructive evaluation (NDE) technique method using a resonance frequency mode was carried out for woodceramics made by different phenol resin impregnation ratios (40, 50, 60, 70%) for Broussonetia Kazinoki Sieb. Dynamic modulus of elasticity increased with increasing resin impregnation ratios. There was a close relationship between dynamic modulus of elasticity and static bending modulus of elasticity and between dynamic modulus of elasticity and MOR and between static bending modulus of elasticity and MOR. Therefore, the dynamic modulus of elasticity using resonance frequency mode is useful as a nondestructive evaluation method for predicting the MOR of woodceramics made by different impregnation ratios.

Properties of Boards Prepared From Woody of Broussonetia Kazinoki Sieb. (닥나무 목질부로 제조된 보드의 성질(I))

  • Oh, Seung Won;Park, Seong Cheol
    • Journal of the Korean Wood Science and Technology
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    • v.37 no.3
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    • pp.216-221
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    • 2009
  • This study was investigated the properties of boards prepared from woody of Broussonetia Kazinoki differed in density of board and mixed quantity of powdered phenolic resin. Water absorption decreased as the density of boards and resin content increased, but bending strength and brinell hardness increased as the density of board and the quantity of resin added increased. Thickness swelling increased as the density of boards went up, and that, in contrary, decreased as the quantity of resin added to the boards.

Volatile Aroma Components and Fatty acid in Fruit of Broussonetia Kazinoki Siebold (닥나무 열매( 저실자)의 휘발성 향기성분과 지방산조성에 관한 연구)

  • 윤숙자;변명우;장명숙
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.1
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    • pp.130-136
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    • 1994
  • Voltaile aroma components and fatty acid in fruit of Broussonetia kazinoki siebold were investigated . The experimental results revealed the presence of 41 volatile components . Forty one compounds , including 4 hydrocarbons(2.45), 7 aldehydes (20%), 3 ketones(1.0%), 7 terpenes(18.05), 8 acids (42%), 4 alcohols (4.2%) and 5 phenols (9.85) were identified. The content of crude lipid was 28.5% . Fatty acid composition were mainly consisted of linoleic (91.61%) and followed by oleic(3.525) , palmitic (3.40%), stearic (0.855) and linolenic acid(0.39%)

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