• Title/Summary/Keyword: Biochemical study

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Effect of Secondary Nutrients on the Leaf Yield and Biochemical Constituents of Terminalia tomentosa

  • Sinha, U.S.P.;Prasad, J.;Das, S.;Ojha, N.G.;Vijay Prakash, N.B.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.18 no.2
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    • pp.135-138
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    • 2009
  • Studies on the effect of different secondary nutrients in different doses on the leaf yield and biochemical constituents of Terminalia tomentosa revealed that secondary nutrients have promotary effect in increasing the leaf yield and foliar constituents of Terminalia tomentosa. Among all the treatments under study, foliar application of magnesium sulphate (2g/plant, w/v) is the best in respect of leaf yield and biochemical constituents of T. tomentosa. This treatment gave 29.15% increase in leaf yield over control. Chemoassay results further confirmed significant improvement in biochemical constituents. Except crude fibre, moisture, minerals, crude protein and total carbohydrate increased significantly over control.

Biochemical Properties and Antimicrobial Drug Susceptibility of Pasteurella haemolytica Isolated from Pneumonic Calves (호흡기질병 감염 송아지에서 분리한 Pasteurella haemolytica의 생화학적 특성 및 약제 감수성)

  • 조광현;박노찬;권헌일;김이준;박덕상
    • Korean Journal of Veterinary Service
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    • v.14 no.2
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    • pp.121-126
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    • 1991
  • The present study was conducted to investigate biochemical properties and antimicrobial drug susceptibilities of 36 strains of Pasteurella haemolytica(P haemolytica) isolated from pneumonic calves in Kyongbuk province during the period from January 1990 to December 1990. P haemolytica was isolated from 36 of 111(32.4%) pneumonic calves of 1 to 6 months of age. The majority of biochemical and cultural properties of P haemolytica isolated from calves were identical to those of the reference strains employed. All isolated were susceptible to baytril, gentamicin, and kanamycin, some of them were resistant to tetracycline, amikacin, streptomycin, and ampicillin.

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Thermal Curing Property of Silicone Encapsulant Containing Quantum Dot Surrounded by Various Types of Ligands

  • Lee, Chae Sung;Kim, BeomJong;Jeon, Seongun;Han, Cheul Jong;Hong, Sung-Kyu
    • Bulletin of the Korean Chemical Society
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    • v.34 no.12
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    • pp.3787-3789
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    • 2013
  • In this study, the silicone thermal curing degree of the silicone-encapsulated quantum dot light emission diode was measured using the various types of chemical ligands around quantum dot. It was confirmed that the trioctyl phosphin oxide (TOPO) ligand around the quantum dot was responsible for dispersion of the quantum dot in silicone encapsulant and decline of the thermal curing degree of the silicone encapsulant. Also, it was confirmed that the thermal curing degree of silicone encapsulants containing the steric acid (SA) and the dodecanoic acid (DA) ligands were higher than the one of TOPO ligand.

A Testing Method of Indoor Artificial Acceleration for the evaluation of Biochemical Corrosion Properties of Sewage Concrete (하수시설 콘크리트의 생화학적 부식특성 평가를 위한 실내 인공촉진 시험방법)

  • Lee, Eui-Bae;Kim, Do-Su;Khil, Bae-Su;Lee, Seung-Hoon;Kim, Gyu-Yong;Kim, Moo-Han
    • Proceedings of the Korea Concrete Institute Conference
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    • 2006.05b
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    • pp.69-72
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    • 2006
  • Recently sewage facilities mainly consisted of concrete structures are being deteriorated seriously by biodeterioration originated from sulfur-oxidizing bacteria. To prevent biochemical corrosion of the sewage concrete, antibiotics which prevent growth of sulfur-oxidizing bacteria were developed. Existing methods to evaluate properties of biochemical corrosion of concrete examine the antimicrobial performance and resistance to sulfuric acid separately, but don't complexly. So, in this study, new method to test properties of biochemical corrosion of concrete complexly is suggested.

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Technology for Controlling Biochemical Corrosion by Sulfur-oxidizing Bacteria of Sewage Concrete Construction applied Antimicrobial Concrete (항균 콘크리트를 적용한 정화조 및 하수처리 콘크리트 구조물의 황산화세균에 의한 생화학적 부식 저감 기술)

  • Kim, Do-Su;Khil, Bae-Su;Sohn, Yu-Shin;Lee, Seung-Hoon
    • Proceedings of the Korea Concrete Institute Conference
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    • 2008.11a
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    • pp.907-910
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    • 2008
  • Recently sewage facilities mainly consisted of concrete structures are being deteriorated seriously by biochemical reaction originated from sulfur-oxidizing bacteria. To prevent biochemical corrosion of the sewage concrete, antibiotics which inhibit growth of sulfur-oxidizing bacteria have to be developed and applied necessarily. In this study, we are going to introduce technology which biochemical corrosion of sewage facilities concrete could be controlled effectively by antibiosis of antimicrobial concrete

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Biochemical properties and cultural characteristics of Escherichia coli isolated from chickens (닭에서 분리한 Escherichia coli의 생물화학적 및 배양 특성)

  • Woo, Yong-ku;Kim, Ki-seuk;Kim, Bong-hwan
    • Korean Journal of Veterinary Research
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    • v.30 no.4
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    • pp.421-425
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    • 1990
  • The present study was conducted to investigate the biochemical and cultural characteristics of Escherichia coli isolates from clinically affected chickens during the period from May 1988 to June 1989. A total of 82 E coli cultures were isolated from lesions of 75 chickens with colisepticemia. Biochemical properties of E coli isolates tested were in accordance with the general classification standard; all the isolates showed positive reaction in Catalase, Indol, and Methyl-Red tests, but negative reaction in Oxidase, Urease, $V{\ddot{o}ges$-Proskauer, Citrate utility, $H_2S$, Phenylalanine diaminase, and malonate tests. And the carbohydrate fermentation rates of them were shown to be variable. of the 82 isolates, 48(58.5%) cultures produced colicin to inhibit the indicator strain of E coli.

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Effects of Ginseng-cake on Growth and Biochemical Components of Rats (인삼박이 흰쥐의 성장과 체성분에 미치는 영향)

  • 이정실;김을상;김해중
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.20 no.4
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    • pp.329-336
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    • 1991
  • This study was carried out to investigate the effect of ginseng-cake on growth and biochemical components of rats. The content of crude protein in ginseng-cake was 17.2% as dry basis. Methionine, isoleuine and valine were limiting amino acids in order and arginine was 23.6% in total amino acids. Body weight gain, food efficiency ratio, organ weight and biochemical components in plasma were significantly lower in ginseng-cake based diet group than in control diet group and those of ginseng-cake diet group supplemented with methionine, isoleucine and valine were significantly increased than those of ginseng-cake based diet group, but 소id not reach to those of control diet group.

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A Comparison of Lyophilized Amniotic Membrane with Cryopreserved Amniotic Membrane for the Reconstruction of Rabbit Corneal Epithelium

  • Ahn Jae-Il;Jang In-Keun;Lee Doo-Hoon;Seo Young-Kwon;Yoon Hee-Hoon;Shin Youn-Ho;Kim Jae-Chan;Song Kye-Yong;Lee Hee-Gu;Yang Eun-Kyung;Kim Ki-Ho;Park Jung-Keung
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.10 no.3
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    • pp.262-269
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    • 2005
  • Many researchers have employed cryopreserved amniotic membrane (CAM) in the treatment of a severely damaged cornea, using corneal epithelial cells cultured on an amniotic membrane (AM). In this study, two Teflon rings were made for culturing the cells on the LAM and CAM, and were then used to support the AM, which is referred to in this paper as an Ahn's AM supporter. The primary corneal epithelial cells were obtained from the limbus, using an ex-plantation method. The corneal epithelium could be reconstructed by culturing the third­passage corneal epithelial cells on the AM. A lyophilized amniotic membrane (LAM) has a higher rate of graft take, a longer shelf life, is easier to store, and safer, due to gamma irradiation, than a (AM. The corneal epithelium reconstructed on the LAM and (AM, supported by the two­Teflon rings, was similar to normal corneal epithelium. However, the advantages of the LAM over that of the (AM make the former more useful. The reconstruction model of the corneal epithelium, using AM, is considered as a good in vitro model for transplantation of cornel epithelium into patients with a severely damaged cornea.

Effects of HgCl2 on plasma DNA content and blood biochemical values in rats (랫드에서 수은이 혈장 DNA와 혈액화학치에 미치는 영향)

  • Cho, Joon-Hyoung;Jeong, Sang-Hee;Kang, Hwan-Goo;Yun, Hyo-In
    • Korean Journal of Veterinary Research
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    • v.43 no.4
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    • pp.641-648
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    • 2003
  • Changes of plasma DNA contents and serum biochemical values were measured in rats administered with $HgCl_2$ to investigate the in vivo cytotoxic effects of mercury and examine the usefulness of these changes as indicators of mercury exposure and diagnosis of mercury poisoning. Rats were given once intraperitonealy $HgCl_2$(0.13. 0.32. 0.8 and 2 mg/kg b.w) and the changes of plasma DNA contents and serum biochemical values were measured at the time of 2, 4, 8, 24, 48 and 72 hours after the administration of $HgCl_2$. Plasma DNA contents began to increase from 2 hours after the administration of $HgCl_2$ in all the treatment groups significantly compared to control with dose-dependent pattern. The levels of plasma DNA reached to peak at 48 hours as 2.77, 7.60, 15.46 and 16.51 times higher than control in each treatment group of 0.13, 0.32, 0.8 and 2 mg/kgb.w, respectively and remained to be higher until 72 hours after the administration. The values of creatine kinase, aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase, blood urea nitrogen and glucose of serum were increased, however the values of alkaline phosphatase, total protein and triglyceride were decreased. These changes of increase and decrease showed dose-dependent pattern but the starting time, maintenance and magnitude of change were various and characteristic according to serum biochemical indices. Among the changes of serum biochemical values, those of aspartate aminotransferase, lactate dehydrogenase and blood urea nitrogen were apparently and significantly increased compared to control from 2 to 72 hours by the administration of 2 mg/kg $HgCl_2$. This study demonstrates that plasma DNA and serum biochemical values such as aspartate aminotransferase, lactate dehydrogenase, blood urea nitrogen and etc. are valuable as biomarkers for mercury exposure assessment and diagnosis of mercury poisoning.

Preoperative Levels of Hematological and Biochemical Indices Affect Perioperative Variables in Adult Patients with Coronary Artery Bypass Graft Surgery

  • Choi, Seok-Cheol;Cho, Byung-Kyu;Lee, Yong-Hwan;Chang, Kyung-Soo
    • Biomedical Science Letters
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    • v.16 no.4
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    • pp.247-258
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    • 2010
  • The objective of this research was to evaluate the relationships of preoperative (Pre-OP) levels of hematological and biochemical indices to perioperative variables in patients that underwent coronary artery bypass graft surgery (CABG). Pre-OP levels of hematological factors [total white blood cells (T-WBC), erythrocytes, hemoglobin, hematocrit, glycohemoglobin A1c (HbA1c), or platelet] were negatively or positively related with biochemical indices [alanine aminotransferase (ALT), bilirubin, glucose, fructosamine, triglyceride, and high density lipoprotein cholesterol (HDL)]. Pre-OP levels of hematological factors and biochemical indices were negatively or positively correlated with echocardiographic variables. Pre-OP level of HbA1c had a relationship with C-reactive protein. Pre-OP levels of aspartate aminotransferase (AST), ALT, HDL, glucose, fructosamine, or blood urea nitrogen (BUN) were positively or negatively associated with Pre-OP levels of cardiac markers (brain natriuretic peptide, troponin-I, creatine kinase isoenzyme 2, or CRP). Pre-OP levels of hematological factors (excepting T-WBC) related with operation time (OPT), postoperative mechanical ventilation time (POMVT), intensive care unit-period (ICU-period) or hospitalization. Pre-OP levels of AST, ALT, bilirubin, triglyceride, HDL, low dwensity lipoprotein, fructosamine, or BUN were positively or negatively correlated with OPT, graft numbers, POMVT, ICU-period or hospitalization. Retrospective this study reveals that Pre-OP levels of hematological and biochemical markers are associated with echocardiographic variables, several cardiac markers and postoperative outcomes, suggesting that Pre-OP levels of hematological and biochemical markers may be useful predictors for the diagnosis and prognosis of coronary artery disease.