RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 원문제공처
        • 등재정보
        • 학술지명
        • 주제분류
        • 발행연도
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • Phospholipid-Pattern in the Developing Coccinella septempunctata Linn

        Kumar, Nirmal,Kaur, Surinder-Pal,Yoo, Chong-Myung,Sodhi, Shabnam-Kaur 한국곤충학회 1988 Korean journal of entomology Vol.18 No.3

        칠성무당벌레의 유충, 용, 성충에서 인지질의 조성을 TLC를 이용하여 조사하였다. 초령 유충에서는 lysophatidylethanolamine (Lyso-PE), phosphatidylethanolamine(PE), phosphatidylglycerophosphate (PGP)및 sphingomyelin (SPH)등 4가지 인지질 만이 확인되었으나, 2령 유충에서는 이외에도 phosphatidylinositol (PI)이 검출되었고, Lyso-PE 대신 phosphatidylcholine (PC)이 검출되었다. 또한 PI, PC 및 PE는 전용, 용 및 성충기 동안에 모두 확인되었다. PGP와 SPH spot는 암, 수에서 모두 노화에 따라 감소하였으며, SPH spot는 수컷에서 보다 더 크게 나타났다. The phosphatides from the larvae, pupae and adults of Coccinella septempunctata were evaluated through TLC. The first instar larva possesses only four phosphatides, which include lysophosphatidylethanolamine (Lyso-PE), phosphatidylethanolamine (PE), phsphatidylglycerophosphate (PGP), and sphingomyelin (SPH). The second instar larva in addition to the above phospholipids, also possesses phosphatidylinositol (PI), and lyso-PE is replated by phosphatidylcholine (PC). The phospholipids including PI, PC and PE are represented throughout the prepupal, pupal and adult life of this beetle. PGP and SPH spot diminished with aging in both the sexes. PE spot developed into larger area in the female as compared to the male of this insect.

      • KCI등재후보

        Green Tea Extract and Catechin Ameliorate Chronic Fatigue-Induced Oxidative Stress in Mice

        Kanwaljit Chopra,Surinder Kaur,Naveen Tirkey,Anjali Singal 한국식품영양과학회 2005 Journal of medicinal food Vol.8 No.1

        Chronic fatigue syndrome (CFS) is an illness characterized by persistent and relapsing fatigue, often accom-panied by numerous symptoms involving various body systems. The etiology of CFS remains unclear, but a number of stud-ies have shown that oxidative stress may be involved in its pathogenesis. The present study was designed to investigate theprotective effect of green tea extract (GTE) and catechin in the mouse model of CFS. Animals were subjected to a forcedswimming test session of 6 minutes every day for 7 days; a significant increase in immobility time on successive days rep-resented the CFS in mice. Biochemical analysis revealed that the chronic swim test significantly increased lipid peroxidationlevels and decreased glutathione levels in mouse whole-brain homogenate. Treatment with GTE (25 or 50 mg/kg, i.p.) andcatechin (50 or 100 mg/kg, i.p.) for 7 days reversed the increase in immobility time. Protection was correlated with the low-ered levels of lipid peroxidation and restoration of reduced glutathione levels in the brains of fatigued mice. These findingsstrongly suggest the pivotal role of oxidative stress in the pathophysiology of CFS and that GTE and catechin could be usedas potential agents in the management of CFS and warrant the inclusion of GTE and catechin in the treatment regimen ofCFS patients.

      • KCI등재

        Chitinolytic and Chitosanolytic Activities from Crude Cellulase Extract Produced by A. niger Grown on Apple Pomace Through Koji Fermentation

        ( Gurpreet Singh Dhillon ),( Satinder Kaur Brar ),( Surinder Kaur ),( Jose R. Valero ),( Mausam Verma ) 한국미생물 · 생명공학회 2011 Journal of microbiology and biotechnology Vol.21 No.12

        Enzyme extracts of cellulase [filter paper cellulase (FPase) and carboxymethyl cellulase (CMCase)], chitinase, and chitosanase produced by Aspergillus niger NRRL-567 were evaluated. The interactive effects of initial moisture and different inducers for FP cellulase and CMCase production were optimized using response surface methodology. Higher enzyme activities [FPase 79.24± 4.22 IU/gram fermented substrate (gfs) and CMCase 124.04±7.78 IU/gfs] were achieved after 48 h fermentation in solid-state medium containing apple pomace supplemented with rice husk [1% (w/w)] under optimized conditions [pH 4.5, moisture 55% (v/w), and inducers veratryl alcohol (2 mM/kg), copper sulfate (1.5 mM/kg), and lactose 2% (w/w)] (p<0.05). Koji fermentation in trays was carried out and higher enzyme activities (FPase 96.67±4.18 IU/gfs and CMCase 146.50±11.92 IU/gfs) were achieved. The nonspecific chitinase and chitosanase activities of cellulase enzyme extract were analyzed using chitin and chitosan substrates with different physicochemical characteristics, such as degree of deacetylation, molecular weight, and viscosity. Higher chitinase and chitosanase activities of 70.28±3.34 IU/gfs and 60.18±3.82 to 64.20±4.12 IU/gfs, respectively, were achieved. Moreover, the enzyme was stable and retained 92-94% activity even after one month. Cellulase enzyme extract obtained from A. niger with chitinolytic and chitosanolytic activities could be potentially used for making low-molecular-weight chitin and chitosan oligomers, having promising applications in biomedicine, pharmaceuticals, food, and agricultural industries, and in biocontrol formulations.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼