• 제목/요약/키워드: Nitrogen recovery

검색결과 338건 처리시간 0.034초

팔진탕이 비소 중독된 흰쥐의 혈액에 미치는 영향 (Effects of Paljin-Tang on the Blood of Arsenic-poisoned Rats)

  • 서은실;김훈;임종필
    • 생약학회지
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    • 제29권4호
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    • pp.379-383
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    • 1998
  • Sodium arsenate and Paljin-Tang extract (PJT), a herbal restorative were treated p.o. 20 mg/kg and 500 mg/kg, respectively, and concurrently to rats, and examined the biochemical parameters in blood. The values of white blood cell (WBC), red blood cell (RBC), hemoglobin (Hgb) and hematocrit (Hct) in each group did not show significant variance. The value of aspartate aminotrasferase(AST) of arsenic-treated group was increased for 2 weeks significantly while that of the group of concurrent administration with PJT became low significantly compared with arsenic-treated group and the value of alkaline phosphatase (ALP) of arsenic-treated group was decreased while that of the group of concurrent administration with PJT was increased significantly compared with arsenic-treated group. The value of glucose (Glu) was increased and those of lactic dehydrogenase (LDH), blood urea nitrogen (BUN) and triglyceride (TG) were decreased at first but increased later while the group of concurrent administration with PJT showed significant recovery from the toxicity of arsenic.

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Characteristics of Immobilized PVA Beads in Nitrate Removal

  • Cho Kyoung-Sook;Park Kyoung-Joo;Jeong Hyun-Do;Nam Soo-Wan;Lee Sang-Joon;Park Tae-Joo;Kim Joong-Kyun
    • Journal of Microbiology and Biotechnology
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    • 제16권3호
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    • pp.414-422
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    • 2006
  • Before applying PVA bio-beads to practical biological treatment of nitrate-containing wastewater, their characteristics were examined. PVA bio-beads could steadily produce nitrogen gas from nitrate for 28 batches with 0.04 ml/l/h of the maximum gas production rate; however, the maximum gas production rate dropped remarkably thereafter with apparent deformation of beads. Addition of 2.2% solution containing 1% casamino acid, 1% yeast extract, 0.1% mineral solution, and 0.1% vitamin solution to the culture medium resulted in not only recovery of activity of deactivated beads, but also a higher rate of gas production. Calculation of economic benefit for the use of bio-beads in a long-run operation indicated that reactivation of bio-beads by chemicals had economical advantages over packing new bio-beads in the system. The continuously stirred bioreactor exhibited a satisfactory performance at HRT of 20.0 h. With a 9.5 mg $NO_{3}^{-}N/l/h$ nitrate removal rate, nitrate could completely be removed without nitrite accumulation. The use of PVA bio-beads in nitrate removal appears very promising.

Effect of fermented Achyranthes japonica (Miq.) Nakai extract on osteoarthritis

  • Kang, Hyo Seok;Lee, Hee Seop;Yu, Heui-Jong;Jang, Seon Hyeong;Seo, Yoonhee;Cho, Hong Yon;Choe, Soo Young
    • 한국식품과학회지
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    • 제49권1호
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    • pp.104-109
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    • 2017
  • The present study was conducted to evaluate the anti-inflammatory and anti-arthritic effects of fermented Achyranthes japonica (Miq.) Nakai extract (FAJE). The FAJE was effective in nitrogen oxide (NO) scavenging in RAW264.7 cells. In the case of experimental Sprague Dawley (SD) rats injected with monosodium iodoacetate (MIA), the levels of $TNF-{\alpha}$ and $IL-1{\beta}$ in blood increased in the osteoarthritis-induced group while decreasing in the group administered with FAJE. In addition, MMP-2 and MMP-9 in cartilage tissues increased in the osteoarthritis-induced group, but decreased in the group treated with FAJE. Cartilage examination indicated that the osteoarthritis-induced group exhibited cartilage erosion and cell degeneration, but in the FAJE administered group the tissue, conditions were recovered and cartilage proteoglycan was increased. Therefore, FAJE clearly showed anti-inflammatory effects and this suggests it is effective for recovery from osteoarthritis induced by MIA.

Acute Toxicity to Peptone Concentrations in the Polychaete Perinereis aibuhitensis under Laboratory Culture

  • Kang, Kyoung-Ho;Zhang, Litao;Ahn, Sam-Young;Kahng, Hyung-Yeel;Zhang, Zhifeng;Sui, Zhenghong
    • Fisheries and Aquatic Sciences
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    • 제14권3호
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    • pp.205-209
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    • 2011
  • Organic pollution causes eutrophication and dystrophication, which occur when excessive amounts of organic matter enters seawater. Eutrophication can contaminate sediment and harm aquaculture. Polychaeta species have been shown to restore eutrophic sediment. In this study, we used peptone to simulate a eutrophic environment and detect the levels at which eutrophication became toxic to the polychaete Perinereis aibuhitensis. Peptone concentrations were 0, 100, 200, and 500 mg/L. The median lethal concentrations were 950.35 mg/L at 48 h, 340.34 mg/L at 72 h, and 120.22 mg/L at 96 h, which are much higher than those of other aquatic species. Polychaeta species are highly tolerant of eutrophication. During the 15-day long-term experiment, sediment loss on ignition, as well as seawater total organic carbon and total nitrogen all decreased significantly (P<0.05). However, $NH_4^+$ concentration increased with time. Perinereis aibuhitensis slowed the increment of $NH_4^+$ but could not prevent its increase. Our results indicate that this polychaete is helpful in the recovery of seawater and sediment from eutrophication.

Re-synthesis and Electrochemical Characteristics of LiFePO4 Cathode Materials Recycled from Scrap Electrodes

  • Kim, Hyung Sun;Shin, Eun Jung
    • Bulletin of the Korean Chemical Society
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    • 제34권3호
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    • pp.851-855
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    • 2013
  • This paper describes an environmentally friendly process for the recovery of $LiFePO_4$ cathode materials from scrap electrodes by a simple thermal treatment method. The active materials were easily separated from the aluminum substrate foil and polymeric binders were also decomposed at different temperatures ($400^{\circ}C$, $500^{\circ}C$, $600^{\circ}C$) for 30 min under nitrogen gas flow. The samples were characterized by X-ray diffraction (XRD), scanning electronic microscopy (SEM), Raman spectroscopy, Thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The electrochemical properties of the recycled $LiFePO_4$ cathode were evaluated by galvanostatic charge and discharge modes. The specific charge/discharge capacities of the recycled $LiFePO_4$ cathode were similar to those of the original $LiFePO_4$ cathode. The $LiFePO_4$ cathode material recovered at $500^{\circ}C$ exhibits a somewhat higher capacity than those of other recovered materials at high current rates. The recycled $LiFePO_4$ cathode also showed a good cycling performance.

Clinical Effects of Preoperative treated-Methylprednisolone in Pediatric Cardiac Surgery with Cardiopulmonary Bypass

  • Choi Seok-Cheol;Kim Yang-Weon;Jang Jung Hoon
    • 대한의생명과학회지
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    • 제11권3호
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    • pp.407-416
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    • 2005
  • Cardiopulmonary bypass (CPB) for cardiac surgery induces the production and release of numerous chemotactic substances and cytokines, ensuing systemic inflammatory response that causes postoperative major organ dysfunctions. We performed a randomized, prospective study to investigate clinical effects of preoperative treated-methylprednisolone for preventing inflammation in pediatric cardiac surgery with CPB. Thirty pediatric patients scheduled for elective cardiac surgery were randomized to either control(n=15) or steroid group (n=15, 10 mg/kg of methylprednisolone). Arterial blood samples were taken before and after the operations for measuring total leukocyte (T-WBC) and differential counts, platelet counts, interleukin-6 (IL-6), myeloperoxidase (MPO), neuron specific enolase (NSE), troponin-I (TNI), aspartate aminotransferase (AST), alanine aminotransferase (ALT), blood urea nitrogen (BUN), and creatinine levels. Postoperative parameters such as pulmonary index (PI, $PaO_2/FiO_2$), 24 hrs and total bleeding volumes, mechanical ventilating (MVP) and intensive care unit (ICU)-staying periods, and hospitalization were assessed. T-WBC, neutrophil fraction, IL-6, MPO, NSE, TNI, AST and creatinine levels, bleeding volumes, PI, and MVP at the postoperative periods were lower or shorter in steroid group than in control group (P<0.05). These findings indicated that preoperative administration of methylprednisolone attenuated CPB-induced inflammatory reactions, contributing to postoperative recovery of patients underwent cardiac surgery.

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인진오령산이 흰쥐의 신독성(腎毒性)에 미치는 영향(影響) (Effect of InJinORyungSan on the nephrotoxicity in rat)

  • 김호현;신흥묵;김길훤
    • 대한한의학회지
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    • 제17권2호
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    • pp.133-144
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    • 1996
  • This study investigated the effect of InJinORyungSan on the nephrotoxicity in rat treated with cyclosporin A. Control group were injected with cyclosporin A alone. whereas test group were injected with cyclosporin A and InJinORyungSan extract. In the control group, blood urea nitrogen(BUN), serum creatinine(S-Cr) and renal lipid peroxidation(LPO) level were significantly increased, but renal superoxide dismutase(SOD) activity was significantly decreased. In the kidney of control group, the destruction of distal convoluted tubules(DCT) and proximal convoluted tubules(PCT) were observed in renal cortex, lymphocytes and fibroblast were appeared in the portion of DCT destruction. However, in the test group, BUN, S-Cr and renal LPO level were significantly decreased as compared with control group, on the other hand, renal SOD activity was significantly increased. In the kidney of test group, the destruction of DCT and PCT were repaired as compared with control group. These results demonstrated that InJinORyungSan. can be attributed to recovery from nephrotoxicity, We consider that activated SOD by InJinORyungSan suppress renal LPO or production of free radicals induced by cyclosporin A.

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복숭아 종자의 단백질에 관한연구 (Studies on the Protein of Peach seed flour)

  • 이강자
    • 한국식품영양과학회지
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    • 제17권1호
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    • pp.43-49
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    • 1988
  • Peach seed four 의 단백질에 관한 연구를 한 결과는 다음과 같다. 일반성분중 조단백질의 함량은 20.38%였다. 염용해성 단백질의 추출율은 약 70%였으며 단백질 정제 결과 주된 분획의 수득율은 51%였다. 전기영동 결과 11개의 band가 확인 되었다. 분자량은 $14,000{\sim}110,000$사이인 것으로 나타났다. peach seed four 와 peach seed 분리물의 amino acid 분석결과 arginine, asparic acid, glutamic acid, glycine, leucine 의 함량이 높은 것으로 나타났다. Nitrogen solubility 는 pH가 5.5일때 가장 낮게 나타났다.

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오미자를 이용한 스포츠 드링크 섭취가 혈액성분과 운동수행력 및 HSP70에 미치는 영향 (The Effect of Sports Drink Containing Schizandra Chinensis on Blood Biochemical Elements, Exercise Performance and HSP70)

  • 오재근;김복주;신영오;정희정
    • 대한한의학회지
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    • 제23권2호
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    • pp.139-150
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    • 2002
  • OBJECTIVES : Schizandra chinensis is well known for its efficacy at liver function reinforcement, relieving thirst and recovery from fatigue. In this study, we examined the effects of sports drink containing Schizandra chinensis on serum metabolic substrate, electrolyte, stress indicators, related-enzyme and exercise performance, rectal temperature, and heat shock proteinb70 (HSP70). METHODS : Elite long-distance runners (male, 21.3yrs, n=16) were selected and divided into two groups; an experimental group (EXP, n=8) and a control group (CON, n=8). A beverage containing Schizandra chinensis was supplemented 3 times per day to EXP for 4 weeks. Serum biochemical elements (glucose, lactate, total cholesterol, triglyceride, high density lipoprotein cholesterol, glutamate oxaloacetate transaminase, glutamate pyruvate transaminase, creatinine, creatine phosphokinase, lactate dehydrogenase, blood urea nitrogen, Na, K, Cl) were analyzed by auto blood analyzer. Exercise performance was measured by treadmill exercise test, HSP70 was detected by electrophoresis and Western blotting, and rectal temperature was measured by rectal temperature probe. RESULTS : Administration of the beverage increased significantly the rest level of blood Na, Cl and glucose and decreased significantly lactate dehydrogenase, glutamate oxaloacetate transaminase. No difference was found in exercise performance, rectal temperature increment or HSP70 concentration between groups. CONCLUSIONS : Administration of a sports drink containing Schizandra chinensis altered blood glucose, lactate dehydrogenase, glutamate oxaloacetate transaminase, Na and Cl levels.

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Effects of Lycium chinense Miller Fruit and its Constituent Betaine on Immunomodulation in Balb/c Mice

  • Kim, Na-Hyung;Baek, Seung-Hwa
    • 한국환경농학회지
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    • 제33권3호
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    • pp.189-193
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    • 2014
  • BACKGROUND: The aim of this study is to investigate the effects of Lycium chinense Miller fruit and its representative constituent betaine on reduction of immobility time and blood parameters in balb/c mice. METHODS AND RESULTS: We investigated the immobility time and the changes in aspects of blood biochemical parameters by the administration of L. chinense Miller fruit and its representative constituent betaine, after the forced swimming test. The immobility time was significantly reduced about 41.3% and 53.6%, respectively, in the animal of L. chinense Miller fruit and its representative constituent betaine-administrated group for 7 days, in comparison with that of the control group. The level of blood urea nitrogen was significantly decreased in L. chinense Miller fruit and its representative constituent betaine-treated group compared with the control group (P < 0.05), respectively. In addition, the interlukin-2 levels of mice in L. chinense Miller fruit and betaine treated group was increased compared with the control group. CONCLUSION: These results indicate that L. chinense Miller fruit and betaine might be helpful in the immune function improvement, enhance physical stamina, and fatigue recovery.