• 제목/요약/키워드: Plant fibers

검색결과 110건 처리시간 0.03초

Anti-inflammatory Effect of Ethyl alcohol Roasted Scutellaria baicalensis Georgi on Croton Oil-induced Mice Ear Edema

  • Lim, Junsik;Ahn, Sanghyun;Kang, Myunghoon;Kim, Minhee;Kim, Wonnam
    • 한국자원식물학회:학술대회논문집
    • /
    • 한국자원식물학회 2019년도 추계학술대회
    • /
    • pp.86-86
    • /
    • 2019
  • Scutellaria baicalensis Georgi (SB) has been widely studied to treat inflammatory diseases in east Asia. In the recent years, many studies have focused on modifying herbs to increase the pharmacological effects. Roasting alcohol absorbed SB is one of the traditional methods to increase the therapeutic effects. Currently there are no reports on the pharmacological effects of roasted SB. This study investigated the anti-inflammatory effects of roasted 30% ethyl alcohol absorbed SB extract (SR) on mice ear edema. After intra-gastric injection of dexamethasone (for positive control, 2 mg/kg) and SR (50, 100, 400 mg/kg), ear edema was provoked by croton oil (5% v/v in acetone, 10 ul/ear). Ear thickness was measured with a digital caliper to quantify the change in swelling. For histological study, we made paraffin sections and performed Phloxine-Tartrazine staining and Masson's trichrome staining to observe epidermis, dermis and subcutaneous region and collagen fiber of mice ear tissues. Ear thickness decreased dose-dependent manner in SR treated groups. Histological analysis compared with dexamethasone treated group, SR treated groups demonstrated a similar reduction in hypoplasia of epidermis and influx of inflammatory cells. Increase of subcutaneous layer and decrease of collagen fibers were significantly recovered in SR treated group (400 mg/kg) and dexamethasone treated group. In conclusion, treatment with SR ameliorates auricular inflammation induced with croton oil in mice. Experiments are now underway to understand the molecular mechanisms underlying anti-inflammatory activities of SR.

  • PDF

Trends in Hybrid Cultured Meat Manufacturing Technology to Improve Sensory Characteristics

  • AMM Nurul Alam;Chan-Jin Kim;So-Hee Kim;Swati Kumari;Seung-Yun Lee;Young-Hwa Hwang;Seon-Tea Joo
    • 한국축산식품학회지
    • /
    • 제44권1호
    • /
    • pp.39-50
    • /
    • 2024
  • The projected growth of global meat production over the next decade is attributed to rising income levels and population expansion. One potentially more pragmatic approach to mitigating the adverse externalities associated with meat production involves implementing alterations to the production process, such as transitioning to cultured meat, hybrid cultured meat, and meat alternatives. Cultured meat (CM) is derived from animal stem cells and undergoes a growth and division process that closely resembles the natural in vivo cellular development. CM is emerging as a widely embraced substitute for traditional protein sources, with the potential to alleviate the future strain on animalderived meat production. To date, the primary emphasis of cultured meat research and production has predominantly been around the ecological advantages and ethical considerations pertaining to animal welfare. However, there exists substantial study potential in exploring consumer preferences with respect to the texture, color, cuts, and sustainable methodologies associated with cultured meat. The potential augmentation of cultured meat's acceptance could be facilitated through the advancement of a wider range of cuts to mimic real muscle fibers. This review examines the prospective commercial trends of hybrid cultured meat. Subsequently, the present state of research pertaining to the advancement of scaffolding, coloration, and muscle fiber development in hybrid cultured meat, encompassing plant-based alternatives designed to emulate authentic meat, has been deliberated. However, this discussion highlights the obstacles that have arisen in current procedures and proposes future research directions for the development of sustainable cultured meat and meat alternatives, such as plant-based meat production.

Fiber Dimensions and Chemical Properties of Various Nonwood Materials and Their Suitability for Paper Production

  • lahan M. Sarwar;Mun Sung Phil;Rashid Mamunur
    • 펄프종이기술
    • /
    • 제36권5호
    • /
    • pp.29-35
    • /
    • 2004
  • Fiber dimensions, their derived values and chemical properties of cotton stalks (Gosypium hirsutum L), jute stick (Corchorus capsularis) and dhancha (Sesbania aculeate) have been examined to assess their suitability for paper production. Cotton stalks have a good derived values especially slender ratio, which is comparable to hardwood. The flexibility coefficient of these three non wood plants is better than hardwood. Anatomical analysis shows higher percentage of fibers and vessels than in general non wood plants. Lignin, $\alpha$-cellulose and pentosan contents in these three nonwood plants are within the range of hardwood. Neutral sugar analysis of cotton stalks, jute stick and dhancha shows that the glucose in the major sugar followed by xylose and mannose. The arabinose and galactose are present in minor amount. Alkaline nitrobenzene oxidation of cotton stalks, jute stick and dhancha wood meal exhibits that these nonwood plant lignins mainly consist of syringyl (S) and guaiacyl (V) units. The S/V ratios are 1.6, 1.2 and 2.1 for cotton stalks, jute stick and dhancha, respectively.

불복장 직물의 구조특성 및 연대규명 (Construction and a Chronological Examination of the Fabrics in the Buddhist)

  • 김선경;조효숙
    • 복식
    • /
    • 제55권8호
    • /
    • pp.73-84
    • /
    • 2005
  • Collections in the buddhist statue owned by Dr. Jong-Hm Baik(白宗欽) included 3 ancient documents and 2 wooden cylinders that showed a clear historical order. The temple and buddhist statue that these objects were belonged to were not known, however, according to the document, it could be inferred as Chunsukwaneumsang(천수관음상) created in 1322 and reformed in 1614 from the list of donator for the statue. Inside a wooden cylinder, a bundle of ivory, yellow, green, orange, and dark brown fabrics that were folded up and tided up with 5 different colored thread strands and aromatic trees and rice plant was placed on the bottom. All the fabrics were silk. Three thread strands were silk. The white and blue strands were cotton fibers as a result of analysis of IR spectrum and the microscope. According to a radioactive carbon isotope dating by accelerator mass spectroscopy, years before present was 160$\pm$40, and cablibrated ages were 1680-1890 (79.3$\%$), 1910-1960(16.1$\%$) in 95.4$\%$ probability. Accordingly, the fabrics in the buddhist statue proved to be reformed in 1614 not the original ones in 1322.

앉은 부채 섭취 후 발생한 심장독성 3예 (Three Cases of Cardiac Toxicity after Intake of Symplocarpus Renifolius)

  • 김태훈;김현;김오현;차용성;차경철;이강현;황성오
    • 대한임상독성학회지
    • /
    • 제10권1호
    • /
    • pp.41-45
    • /
    • 2012
  • Recently, some patients have visited the emergency department for treatment of different symptoms of acute poisoning after intake of unidentified herbs, which can be mistaken for wild edible greens, because wild edible greens are good for health and contain vitamins, enzymes, minerals, fibers, and anticancer materials. Winter or early spring, is extremely high, with rapid onset of severe symptoms of poisoning. There have been no reports of poisoning by SymplocarpusRenifolius in Korea, however, we report on three severe cases involving patients who experienced cardiogenic shock with nausea, vomiting, abdominal pain, chest discomfort, dizziness, numbness, and general weakness.

  • PDF

Carbon Material from Natural Sources as an Anode in Lithium Secondary Battery

  • Bhardwaj, Sunil;Sharon, Maheshwar;Ishihara, T.;Jayabhaye, Sandesh;Afre, Rakesh;Soga, T.;Sharon, Madhuri
    • Carbon letters
    • /
    • 제8권4호
    • /
    • pp.285-291
    • /
    • 2007
  • Carbon materials of various morphologies were synthesized by pyrolysis of Soap-nut seeds (Sapindus mukorossi), Jack Fruit seeds (Artocarpus heterophyllus), Date-seeds (Phoenix dactylifera), Neem seeds (Azadirachta indica), Tea leaves (Ehretia microphylla), Bamboo stem (Bambusa bambus) and Coconut fiber (Cocos nucifera), without using any catalyst. Carbon materials thus formed were characterized by SEM XRD and Raman. Carbon thus synthesized varied in size (in ${\mu}m$) but all showed highly porous morphology. These carbon materials were utilized as the anode in Lithium secondary battery. Amongst the various precursors, carbon fibers obtained from Soap-nut seeds (Sapindus mukorossi) and Bamboo stem (Bambusa bambus), even after $100^{th}$ cycles, showed the highest capacity of 130.29 mAh/g and 92.74 mAh/g respectively. Morphology, surface areas and porosity of carbon materials obtained from these precursors were analyzed to provide interpretation for their capacity to intercalate lithium. From the Raman studies it is concluded that graphitic nature of carbon materials assist in the intercalation of lithium. Size of cavity (or pore size of channels type structure) present in carbon materials were found to facilitate the intercalation of lithium.

국소적 전도차단을 보인 n-Hexane induced neuropathy 1례 (A Case of n-Hexane Induced Neuropathy with Focal Conduction Block)

  • 서우근;박범식;조성진;전형준;고성범;김병조;박종태;박민규;박건우;이대희
    • Annals of Clinical Neurophysiology
    • /
    • 제4권1호
    • /
    • pp.78-80
    • /
    • 2002
  • A 32-year-old man who had worked at aluminum processing plant for 4 months visited us. He complained of numbness and paresthesia of both foot and hands and weakness of all extremities. Electrophysiologic study showed motorsensory polyneuropathy of diffuse axonal type with focal conduction block. And we discovered higher concentration of n-Hexane in his workplace. On sural nerve biopsy, bubbly enlarged nerve fibers in light microscope and thick myelin sheath and axonal degeneration on electron microscope were found. We diagnosed it as n-Hexane induced neuropathy.

  • PDF

먹물버섯 키틴질 분해효소에 의한 인체유해성 Cryptococcus neoformans 세포벽 생성억제 및 Alternaria alternata에 기인한 생쥐의 피부알레르기의 감소 (Inhibition of cell wall synthesis in Cryptococcus neoformans and decrease of skin allergy induced with Alternaria alternata in mouse model by a chitinase from an inky cap)

  • 강유리;최형태
    • 미생물학회지
    • /
    • 제52권2호
    • /
    • pp.226-229
    • /
    • 2016
  • 먹물버섯 Coprinellus congregatus의 버섯조직이 자가분해되는 시기에 발현되는 chitinase (Chi2)는 사람에게 질병을 일으키는 Cryptococcus neoformans의 세포벽 두께를 정상 세포벽의 32% 수준까지 감소시킬 뿐만 아니라, 세포 외 섬유상 물질도 제거하였다. Chi2 처리에 의하여 사람에게 알레르기를 유발하는 Alternaria alternata의 생장은 물론 생쥐 모델에서 이 균에 의한 피부알레르기 증상도 감소시켰다.

폐지를 이용한 기능성 육묘지의 제조(제2보) - 육묘지 적성 시험 - (Development of multipurpose seed paper from waste paper(II) - Focused on field test of manufactured seed paper -)

  • 엄태진;박성배
    • 펄프종이기술
    • /
    • 제39권1호
    • /
    • pp.30-37
    • /
    • 2007
  • The seed paper was used in farm field recently for a sound young plant. The most of seed paper are made of synthetic non-woven sheet. Therefore, it is very difficult to bio-degrade in soil and is very hard to have some special function, for example keeping herbicide and/or insecticide activity because of its lack of chemical acceptability. The purpose of this research is manufacture of seedling paper which have a function of herbicide activity from waste paper. The fiber properties from waste paper were remarkably improved by fine removal with washing and/or flotation process. The paper-making ability for seed paper was enhanced with enzyme treatment of secondary fibers. The paper for seedling must have a good bio-degradation ability in soils. The absorption amount of chemical like as dithiopyr was increased remarkably in enzyme treated base paper. The embossing treatment of base paper was very effective for seed attachment and chemicals retention. And also, the developed seed paper showed a good penetration property of young root through embossed paper.

The Effect of Coagulant and Molecular Weight on the Wet Spinnability of Regenerated Silk Fibroin solution

  • Yoo, Young-Jin;Kim, Ung-Jin;Um, In-Chul
    • International Journal of Industrial Entomology and Biomaterials
    • /
    • 제21권1호
    • /
    • pp.145-150
    • /
    • 2010
  • The regenerated silk fibroin with various molecular weights (MW) was prepared by different dissolution condition and the effect of coagulant on the wet spinnability of the various MW silk fibroin solutions dissolved in formic acid was investigated by the observation of wet spun filament in coagulant and the measurement of maximum draw ratio. The observation on the wet spun filament in coagulation bath revealed that good fibers without bead were formed in a high MW and a very high MW silk fibroin samples. In contrast, beads were observed in the silk fibroin sample with medium MW. The maximum draw ratio of wet spun silk fibroin filament decreased with MW reduction. The decrease of maximum draw ratio in isopropanol, acetone, DMF and THF was remarkably higher than that in methanol and ethanol, indicating that the coagulant type strongly influenced the wet spinnability. The two simple evaluation methods used in this study showed complementary information for wet spinnability: (a) The observation of filament in coagulant was effective to check a continuous fiber formation and a bead formation, and (b) the maximum draw ratio measurement was useful to examine the post drawing ability related to molecular orientation.