• 제목/요약/키워드: Sangju silk

검색결과 18건 처리시간 0.029초

Structural Characteristics of Silk Sericin Powder

  • Lee, Kwang-Gill;Kweon, Hae-Yong;Yeo, Joo-Hong;Woo, Soon-Ok;Lee, Yong-Woo;Kim, Jong-Ho
    • 한국잠사학회:학술대회논문집
    • /
    • 한국잠사학회 2002년도 Join Meetings of Korean Society of Sericultural Science and Japanse Society of Sericultural Science
    • /
    • pp.93-93
    • /
    • 2002
  • No Abstract, See Full Text

  • PDF

경북 상주 양잠농가 바이러스병 발생 보고 (Report of a Viral Endemic Occurrence in Sericulture Farms in Sangju, Kyungpook)

  • 김용균;김길호;아메드 샤비르;밀탄 찬드라 로이;최두열
    • 한국응용곤충학회지
    • /
    • 제59권4호
    • /
    • pp.451-454
    • /
    • 2020
  • 양잠은 경북 상주지역의 주요 곤충 산업 가운데 하나이다. 본 연구는 이 지역에서 2020년도에 발생한 바이러스병을 보고한다. 약 20% 이상의 누에(Bombyx mori) 유충이 설사 및 조직용해를 보이면서 대부분 4-5령충 시기에 치사하였다. 병든 개체들에 대해 누에핵다각체바이러스(B. mori nucleopolyhedrosis virus: BmNPV)에 특이적 PCR 진단 기법을 적용한 결과 양성반응을 나타냈다. 병든 개체로부터 조직 추출액을 엽침지법으로 건전한 개체에 처리한 결과 동일한 병징을 확인하였다. 다시 이 바이러스 추출물을 Sf9 세포주에 처리한 결과 세포질에 다수의 바이러스 다각체를 관찰할 수 있었다. 이러한 결과는 상주지역 양잠농가에 발생한 누에 유충 치사는 BmNPV에 의한 바이러스병에 기인된 것으로 확인되었다.

Effect of Low Molecular Weight Silk Fibroin on the Inhibition of Tyrosinase Activity

  • Kang, Gyung Don;Lee, Ki Hoon;Shin, Bong Seob;Nahm, Joong Hee;Park, Young Hwan
    • International Journal of Industrial Entomology and Biomaterials
    • /
    • 제9권1호
    • /
    • pp.29-33
    • /
    • 2004
  • Low molecular weight silk fibroin (LMSF), which was prepared by hydrolysis of silk fibroin using high-temperature and high-pressure method, was found to inhibit the oxidation of L-3,4,-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyrosinase (EC 1.14.18.1). LMSF contained mostly free amino acids such as L-glycine, L-alanine, and L-serine and oligopeptides, mainly glycine-alanine dimer. As a result of analyzing the inhibition kinetics from Lineweaver-Burk plots, L-glycine and glycine-alanine dimer showed noncompetitive behavior while uncompetitive behavior was observed in L-alanine, and L-serine. When weight percent concentration of ${ID_50}$ was compared, L-glycine was most effective on the inhibition and LMSF was also good enough for the inhibition effect of tyrosinase activity. LMSF showed a mixed-type inhibition and the inhibitory mechanism of LMSF might be caused by free amino acids and oligopeptides. As a result of spectroscopic observation with time, initial rate of increase of DOPAchrome decreased remarkably and the time to reach maximum absorbance increased as an increase of the concentration of L-glycine, meaning that L-glycine made itself mainly responsible for the formation of chelate with ${Cu^2+}$ in tyrosinase. However, in case of L-alanine, L-serine, and especially glycine-alanine dimmer, the production of DOPAchrome after an arrival at maximum absorbance decreased, indicating the production of adducts through the reaction with DOPAquinone.

천잠 견단백질 가수분해 분말의 특성 분석 (Characterization of Hydrolyzed Antheraea yamamai Silk Fibroin Powder)

  • 권해용;이광길;여주홍;우순옥;한상미;손봉희;이희삼;신봉섭
    • 한국잠사곤충학회지
    • /
    • 제48권1호
    • /
    • pp.11-15
    • /
    • 2006
  • 천잠 견단백질을 이용한 비의류용 소재개발을 위한 기초 연구의 일환으로 천잠 가수분해 견단백질 분말을 제조하여 그 구조 및 별 특성을 살펴보고 중금속 함량을 분석하였다. 1. 천잠 고치를 가수분해하여 제조한 분말의 평균분자량은 430 정도였으며 아미노산 조성 분석 결과 일반적인 천잠 견피브로인의 조성과 유사하였다. 2. 천잠 분말의 X-선 회절 분석 결과 $2{\theta}=20.34^{\circ}$ 부근과 $31.5^{\circ}$ 부근에서 강한 회절 피크를 보였으며 원이색분석 결과 220nm의 피크와 215nm의 shoulder를 나타내어 ${\alpha}-helix$${\beta}-sheet$ 구조임을 알 수 있었다. 3. 시차열분석 및 열중량분석 결과 천잠 가수분해 분말은 $250^{\circ}C$ 부근에서 열분해 흡열피크를 보였으며 $270^{\circ}C$ 부근에서 열분해에 의한 최대 중량감소가 나타났다. 4. 천잠 분말에서는 수은, 비소 등 인체 독성이 강한 중금속을 관찰할 수 없었으므로 기능성 소재 개발을 위한 재료로 천잠 가수분해 분말을 활용할 수 있을 것으로 사료된다.

오디의 안토시아니딘에 구리를 이용한 착화합물 합성 및 상주실크에 천연염색 (Analysis of Anthocyanidin in Mulberry of Cu Complex Compound and Natural Dyeing on Sangju Silk)

  • 이광우
    • 한국산업융합학회 논문집
    • /
    • 제13권4호
    • /
    • pp.191-196
    • /
    • 2010
  • This study explores the solution of a variety of conditions of the natural dyeing with the Mulberry. To obtain this, the Cu complex compound was added into the extracts. The Mulberry extract was added the Copper acetate to obtain the Black sediment the metal complex compound of anthocyanidin. According to the result of using the complex compound of the solid material, the dyeing properties were excellent. The metal complex compound acted as a mordant, thus it reduced the process of mordanting in the natural dying.

  • PDF

현대 장묘문화 변화에 적합한 수의 제작에 관한 연구 (A Study on Desirable Shroud Construction in Modern Funeral Culture)

  • 이봉이;송정아
    • 한국의류산업학회지
    • /
    • 제9권1호
    • /
    • pp.24-34
    • /
    • 2007
  • The shroud of the Chosun dynasty period originally meant the new start in the next world. Its basic principle was to wear the best clothes or wedding garments during one's life. The white hemp cloth-shroud worn during this time was formed after the 20th century. In the beginning it started simply by imitating the shroud of the common people. However recently many aspects of the trade have deteriorated by the commercialism of the shroud traders. So this study focuses on the way of keeping traditions and making the shroud desirable. First, the shroud was made of the best materials such as silk, hemp cloth, ramie cloth and cotton cloth in the past. A thought that the shroud material must be white hemp cloth is the result from misunderstanding of the traditional shroud of the Chosun dynasty period. We can produce beautiful shrouds using natural materials without losing dignity and at diverse prices. Second, the shroud was produced not only to keep the dignity of a dead person but also to avoid wasting the original cloth. Third, The shroud has pursued diversity in classifying the traditional style or the basic style. It is possible to select the shroud flexibly according to one's sense of values or the way the tomb was made. These days, the Korean full-dress attire and Wonsam (Korean woman's ceremonial clothes) are the standardized form of the ready-made shroud. The man's Korean full-dress attire on sale is sewn in the wrong way and its shape looks more like the Wonsam. I offer diverse shrouds of the Chosun dynasty period, for example, the official uniform, hemp cloth upper garment, men's black upper garment, Korean full-dress attire, Korean overcoat, Wonsam, the long hood worn by a Korean woman and a woman's long upper garment, so that we can see the Korean originality and beauty through the different types of shrouds. Also, I adjusted a number of items, undergarments and other articles according to the price. As mentioned before this study helps to portray a desirable understanding of the culture of the shroud. So I corrected many problems of the present shroud and propose a new type of shroud based on tradition. Furthermore, I recommend a way of making use of the Hanbok which the man wears during his life, at the wedding ceremony or a his 60th birthday without buying a new shroud.