• Title/Summary/Keyword: biochemical components

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Immobilization of enzymes on magnetic nanoparticles for biochip applications

  • Sohn, Ok-Jae;Rhee, Jong-Il
    • 한국생물공학회:학술대회논문집
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    • 2003.10a
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    • pp.692-695
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    • 2003
  • In this work immobilization technique of enzymes onto the magnetic nanoparticles has been developed for biochip applications. Glucose oxidase and lactate dehydrogenase were immobilized on magnetic nanoparticles via cyanamide and glutaraldehyde. Immobilized enzymes had good operational and storage stability The immobilized glucose oxidase and lactate dehydrogenase were characterized by some factors(pH, temperature, and components of buffer solution etc) which affect the activity, In order to characterize the magnetic nanoparticles, we have used transmission electron microscopy(TEM), X-ray diffraction(XRD) and Fourier transform infrared(FTIR).

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Prevalence of Fascioliasis and changes in blood components in slaughtered Korean native cattle of North Kyeongnam area (경남 북부지역에서 도축된 한우의 간질 감염율과 혈액성장의 변화에 관한 연구)

  • 서득록;이국천;이순선;김종수;김충희
    • Korean Journal of Veterinary Service
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    • v.18 no.2
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    • pp.158-162
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    • 1995
  • An abattoir survey was carried out on 300 Korean native cattles reared and slaughtered in North Kyeongnam area to determine the prevalence of Fasciola hepatica infections. The average prevalence of fascioliasis was 46.4% ; the infection rate had a tendency to increase with age. Some hematological and biochemical indices were assayed in Korean native cattle naturally harbouring Fasciola hepatica infection and compared with uninfection control. Affected animal revealed reduction total erythrocyte count and hemoglobin, which was consistent in total leucocyte count and packed cell volume. Infected cattle had lower level of serum total protein and albumin, was consistent serum calcium and glucose indices, had higher levels of SGOT, SGPT and cholesterol indices.

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A Study on the Biochemical and Nutritional Inquiry of Antler (녹용의 영양.생화학적 고찰)

  • 강춘기;김성환
    • The Korean Journal of Food And Nutrition
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    • v.2 no.2
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    • pp.65-71
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    • 1989
  • Deer horn has been used in oriental medicine and folk remedy. It has had much effects on 'health and tonic efficacy' But this word, 'health and tonic efficacy', is very obscure in modern sense This report attempts to investigate their scientific and objective effects among many papers. The biochemical components of antler are composed of pentoses, hexoses, acid mucopolysaccharides, free and ester fatty acids, glycolipids, phospholipids, prostaglandins, sterols, protein and peptides, free amino acids, minerals, hormones etc. Deer horn extract especially increases body weight gain and feed efficiency, and it stimulates the ability of spermatogenesis of animal. However, a few papers have reported concerning the toxicity and side effects of antler.

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Role of Fermentation in Improving Nutritional Quality of Soybean Meal - A Review

  • Mukherjee, Runni;Chakraborty, Runu;Dutta, Abhishek
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.11
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    • pp.1523-1529
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    • 2016
  • Soybean meal (SBM), a commonly used protein source for animal feed, contains anti-nutritional factors such as trypsin inhibitor, phytate, oligosaccharides among others, which limit its utilization. Microbial fermentation using bacteria or fungi has the capability to improve nutritional value of SBM by altering the native composition. Both submerged and solid state fermentation processes can be used for this purpose. Bacterial and fungal fermentations result in degradation of various anti-nutritional factors, an increase in amount of small-sized peptides and improved content of both essential and non-essential amino acids. However, the resulting fermented products vary in levels of nutritional components as the two species used for fermentation differ in their metabolic activities. Compared to SBM, feeding non-ruminants with fermented SBM has several beneficial effects including increased average daily gain, improved growth performance, better protein digestibility, decreased immunological reactivity and undesirable morphological changes like absence of granulated pinocytotic vacuoles.

Fungal and mushroom hydrophobins: A review

  • Wu, Yuanzheng;Li, Jishun;Yang, Hetong;Shin, Hyun-Jae
    • Journal of Mushroom
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    • v.15 no.1
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    • pp.1-7
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    • 2017
  • Hydrophobins are surface active proteins that are produced by filamentous fungi including mushrooms. Their ability to self-assemble into an amphipathic membrane at any hydrophilic-hydrophobic interface is most intriguing. These small secreted proteins comprise of eight conserved cysteine residues which form four disulfide bridges and an extraordinary hydrophobic patch. Hydrophobins play critical roles in fungal (and/or mushrooms) growth as structural components and in the interaction of fungi and mushrooms with the environment. The biophysical and biochemical properties of the isolated proteins are remarkable, such as strong adhesion, high surface activity and the formation of various self-assembled structures. With the increasing demands of hydrophobins from fungi and mushroom sources, production and purification in large scale is under challenge. Various applications, ranging from food industries, cosmetics, nanotechnology, biosensors and electrodes, to biomaterials and pharmaceuticals are emerging and a bright future is foreseen.

Biochemical Studies on the Chemical Components of Borean Ginseng (ll) Effects of Ginseng Components on the Activity of RNA Polymerase (한국 인삼 성분들에 관한 생화학적 연구(II) 인삼 성분들이 RNA 중합효소의 활동성에 미치는 영향)

  • 장세희;박인원
    • Journal of Ginseng Research
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    • v.1 no.1
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    • pp.25-28
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    • 1976
  • Ginseng extracts were fractionated into several fractions with various organic solvents, and the effects of these fractions on the activity of RNA polymerase were examined. Fractions which showed positive effect on the activity of RNA polymerase were obtained both from white ginseng and red ginseng. For white ginseng the components which hare shown a positive effect on RNA polymerase roue found in total methanol extracts, the residual aqueous solution from ethyl acetate extraction and the methanol insoluble fraction of the above solution, whereas for red ginseng the positive components roue found in total methanol extracts and in ethyl ether extracts. These finding suggest that the ginseng components which have Positive effect on RNA polymerase be composed of Polar and nonpolar moieties, which may be cleaved into the ports during the processing the of red ginseng.

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DETECTION OF PHYSIOLOGICAL PROCESSES IN WHEAT BY NIR

  • Salgo, A.;Gergely, Sz.;Scholz, E.
    • Proceedings of the Korean Society of Near Infrared Spectroscopy Conference
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    • 2001.06a
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    • pp.1158-1158
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    • 2001
  • Fast and dynamic biochemical, enzymatic and morphological changes occur during the so-called generative development and during the vegetative processes in seeds. The most characteristic biochemical and compositional changes of this period are the formation and decline of storage components or their precursors, the change of their degree in polymerization and an extensive change in water content. The aim of the present study was to detect the maturation processes in seed nondestructively and to verify the applicability of near infrared spectroscopic methods in the measurement of physiological, chemical and biochemical changes in wheat seed. The amount and variation of different water “species” has been changed intensively during maturation. Characteristic changes of three water absorption bands (1920, 1420 and 1150 nm) during maturation were analysed. It was concluded that the free/bound transition of water molecules could be followed sensitively in different region of NIR spectra. Kinetic changes of carbohydrate reserves were characteristic during maturation. An intensive formation and decline of carbohydrate reserves were observed during early stage of maturation (0 -13 days, high energy demand). An accelerated formation of storage carbohydrates (starch) was detected in the second phase of maturation. Five characteristic absorption bands were analysed which were sensitive indicators the changes of carbohydrates occurred during maturation. Precursors of protein synthesis and the synthesis of reserve proteins and their kinetic changes during maturation were followed from NIR spectra qualitative and qualitatively. Dynamic formation of amino acids and the changes of N forms were detected by spectroscopic, chromatographic and by capillary electrophoresis methods. Calibration equations were developed and validated in order to measure the optimal maturation time protein and moisture content of developing wheat seeds. The spectroscopic methods are offering chance and measurement potential in order to detect fine details of physiological processes. The spectra have many hidden details, which can help to understand the biochemical background of processes.

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Combining Ability for Morphological and Biochemical Characters in Mulberry (Morns spp.) under Salinity Stress

  • Vijayan, Kunjupillai;Chakraborti, Shyama Prasad;Doss, Subramaniam Gandhi;Ghosh, Partha Deb;Ercisli, Sezai
    • International Journal of Industrial Entomology and Biomaterials
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    • v.16 no.2
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    • pp.67-74
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    • 2008
  • A line x tester analysis was carried out in mulberry (Morns spp.) under different salinity levels to determine the changes in the genetic interaction of various morpho-biochemical characters. Five mulberry genotypes, 3 females and 2 males, differing in salt tolerance were selected for the study. Clones of these parents along with clones of the F1 hybrids were planted in earthen pots and subjected to different levels of salinity (0.0%, 0.25%, 0.50%, 0.75% and 1.00% NaCl). Data on morphological and biochemical characters were subjected to line x tester analysis. The result revealed significant variation among the parents studied. The prominence of non-additive gene effect under control condition suggests the need for well chalked out breeding program to exploit the non-fixable variance of components for improvement of plant height, leaf size and leaf yield, chlorophyll and photosynthesis in mulberry. However, under salinity stress a shift from non-additive gene effect to additive gene effect for the above said character further suggests the need for a change in breeding strategy. The general combining ability (GCA) analysis has identified English black as the best combiner among the parents and the specific combining ability analysis (SCA) found crosses of English black X C776 and Rotndiloba x Mandalaya were good for Plant height and leaf size and English black X C776 and Rotundiloba x C776 were good for biochemical proline and chlorophyll. From the performance of parents and their crosses under different salinity levels and also under normal cultural conditions it is concluded that in mulberry different approaches are required to develop varieties for the irrigated and saline conditions.

INVESTIGATION OF EQUINE HEMATOLOGICAL CONSTITUENTS IN CENTRAL TAIWAN. I. DISTRIBUTION OF THE BLOOD CELL PARAMETERS AND THE BIOCHEMICAL COMPOSITIONS OF SERUM

  • Ju, J.C.;Cheng, S.P.;Fan, Y.K.;Hsu, J.C.;Chiang, S.K.;Chen, E.V.;Chang, S.H.;Chiou, S.C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.6 no.1
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    • pp.147-153
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    • 1993
  • A total of 109 heads of horses and ponies from eight horseback riding clubs nearby Central Taiwan were investigated to evaluate the blood parameters and the biochemical compositions of serum for the documentation of clinical pathological diagnosis and exercise physiology. Blood samples were collected from the jugular vein of resting horses. The sex difference in the blood traits were compared both in horses and in ponies. Results shows that total plasma proteins (PP) and hematocrit (PCV) were found higher in male horses than in females (p < 0.05). The sexual effect also exertes a significant influence on the leucocyte (WBC) count, but not on the erythrocyte (RBC) concentration. According to the differential counts of leucocytes, the number of monocytes and lymphocytes was higher in the male pony than that of in male horse. A close relationship Between the erythrocyte sedimention rate (ESR) and the other blood parameters were found especially in PCV, RBC concentration, and plasma protein level. The average ESR observed at 60 minutes were $21.80{\pm}21.87mm$, $39.50{\pm}18.90mm$ and $43.73{\pm}17.89mm$ in stallions, geldings, and mares, respectively. Most of the biochemical components of horse serum detected were distributed in normal ranges, although some of the items show a great variation in such a large sample size.

Seasonal Variation of the Quantity and Quality of Seston as Diet Available to Suspension-Feeders in Gosung and Kangjin Bays of Korea (고성만과 강진만에서 현탁물 섭식자에 유용한 입자물질 양과 질의 계절 변동)

  • LEE Pil-Yong;KANG Chang-Keun;CHOI Woo-Jeung;YANG Han-Seob
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.34 no.4
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    • pp.340-347
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    • 2001
  • Seasonal variation of the elemental and biochemical composition of the suspended particulate matter (SPM) was investigated in terms of quantity and quality of diets for suspension feeders from July 1999 to August 2000 in two coastal bay systems of Gosung and Kangjin Bays in Korea. No clear patterns in the seasonal variations of SPM concentration were found in these two bay systems. The results indicated that the seasonal variation of SPM could not be considered the variation of food available to suspension-feeders. The simultaneous peaks in chlorophyll a and biochemical components in summer indicated that the quantity of the particulate organic matter primarily depended on phytoplankton productivity. However, no correlation between chlorophyll a and biochemical components [particulate protein (PPr), carbohydrate (PCHO) and lipid] were found, indicating that other processes might also contribute to the particulate organic matter in the period when the phytoplankton biomass was low. High C: Chl a and C:N, and carbohydrate peaks during the autumn to spring period suggested that resuspension of surface sediments was a probable process to supply the particulate organic matter. The food material, represented by summing up the total quantity of three biochemical components, was highest in spring with minor peaks during the period from autumn to the next spring, The food index, calculated as the ratio of food material to total SPM, did not generally exceed $6\%$ with short peaks during the year. Therefore, nutritional quality of SPM in the bays are relatively poor than in other more productive coastal waters in the world. Our results confirm that the measurement of a single chemical variable cannot describe fully the nutritive value of the seston available to suspension-feeders as previously proposed, and the biochemical composition of SPM can provide effective information on its origin and nutritive Quality.

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