• Title/Summary/Keyword: ACP

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Growth Performance, Meat Yield, Oxidative Stability, and Fatty Acid Composition of Meat from Broilers Fed Diets Supplemented with a Medicinal Plant and Probiotics

  • Hossain, Md. Elias;Kim, Gwi-Man;Lee, Sung-Ki;Yang, Chul-Ju
    • Asian-Australasian Journal of Animal Sciences
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    • v.25 no.8
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    • pp.1159-1168
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    • 2012
  • The experiment was carried out to investigate the effects of Alisma canaliculatum with probiotics (ACP) on the growth performance, meat composition, oxidative stability, and fatty acid composition of broiler meat. Sixteen probiotic strains were tested for their levels of acid, bile, and heat tolerance. Among them, Lactobacillus acidophilus KCTC 3111, Enterococcus faecium KCTC 2022, Bacillus subtilis KCTC 3239, and Saccharomyces cerevisiae KCTC 7928 were selected for use in ACP. Exactly 140 Ross broiler chicks were assigned to four dietary treatments in five replications for 5 wks in a completely randomized design. The dietary treatments were NC (Negative control; basal diet), PC (Positive control; basal diet with 0.005% Chlortetracycline), ACP-0.5% (basal diet with 0.5% ACP powder), and ACP-1% (basal diet with 1% ACP powder). According to the results, body weight of the broilers increased, and feed conversion ratio improved in the ACP-0.5% group compared to the NC group (p<0.05). Crude protein content of breast meat was higher (p<0.05) in the ACP-0.5% group, whereas crude fat content of thigh meat was lower (p<0.05) in the supplemented groups. Breast meat absolute and relative weights were both higher (p<0.05) in the ACP groups compared to the control group. Further, ACP diets increased gizzard and decreased large intestine relative weights, whereas kidney relative weight decreased upon the addition of a higher level (1%) of ACP (p<0.05). Thiobarbituric acid reactive substances values of breast and thigh meats were reduced (p<0.05) by ACP supplementation compared to control. Regarding the fatty acid composition of breast meat, arachidonic acid, docosahexaenoic acid, PUFA, and n6 fatty acid levels decreased (p<0.05) in the ACP groups, whereas the levels of linoleic acid, PUFA, PUFA/SFA, and n6 fatty acid in thigh meat decreased (p<0.05) by ACP and PC diets. It can be suggested based on the study results that ACP-0.5% diet could be an effective feed additive for broilers.

Characterization of Polysaccharides from Artemisia capillaris and Artemisia sylvatica (사철쑥과 그늘쑥의 다당류 연구)

  • 황은주;권학철;정칠만;문형인;김선여;지옥표;이강노
    • YAKHAK HOEJI
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    • v.43 no.4
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    • pp.423-428
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    • 1999
  • Two polysaccharides, ACP-UMP and ACP-ULF, were purified from the aerial part of Artemisia capillaris by anion-exchange chromatography, ultrafiltration, and gel filtration chromatography. The polysaccharides appeared to be homogenious from the results of HPLC. The molecular weights of ACP-UMF and ACP-ULF were estimated to be 16305.92 D and 3292.26 D, respectively, by MALDI-TOF MS. The sugar compositions were determined by GC to be arabinose 10.05%, xylose 1.67%, mannose 5.45G, galactose 39.06%, glucose 15.43% for ACP-UMF and arabinose 11.60%, xylose 11.15%, mannose 6.37% galactose 32.47%, glucose 18.35% for ACP-ULF. A polysaccharide, SP-M was determined to be 2462.52 D by MALDI-TOF MS. SP-M consisted mainly of rhamnose 36.49%, arabinose 29.00%, and glucose 19.38%. Incubation of CCl4-intoxicated hepatocytes with ACP-UMF reduced the levels of glutamic pyruvic transaminase (GPT) and cellular malondialdehyde (MDA) to 62.8% and 23.8%. ACP-ULF also reduced the levels of GPT and MDA to 46.1% and 38.1% and 26.3%, respectively.

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THE EFFECT OF CPP-ACP PRE-TREATMENT ON BOND STRENGTH OF A SEALANT (CPP-ACP 적용이 치면열구전색제의 결합강도에 미치는 영향)

  • Kong, Eun-Kyung;Jung, Sang-Hyuk;Mah, Yon-Joo;Ahn, Byung-Duk;Jung, Young-Jung
    • Journal of the korean academy of Pediatric Dentistry
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    • v.37 no.4
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    • pp.445-452
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    • 2010
  • Recently the effect of CPP-ACP on early caries remineralization and prevention has hashbeen extensively researched. However, there has been a lack of research on micro-shear bond strength of a sealant applied on a CPP-ACP treated surface. Therefore, the purpose of this study was to evaluate the effect of CPP-ACP on the micro-shear bond strength of a sealant bonded with 3 different bonding systems. From the sound human 3rd molars, the 150 specimens were prepared and randomly assigned to six groups. Group I: Immersion in artificial saliva for 2 weeks + 35% phosphoric acid Group II: Immersion in artificial saliva for 2 weeks + 35% phosphoric acid + dentin bonding agent Group III: Immersion in artificial saliva for 2 weeks + self-etching adhesive Group IV: CPP-ACP application for 2 weeks + 35% phosphoric acid Group V: CPP-ACP application for 2 weeks + 35% phosphoric acid + dentin bonding agent Group VI: CPP-ACP application for 2 weeks + self-etching adhesive Sealant was applied and the micro-shear bond strength was measured. From the result of this study, it can be assumed that the CPP-ACP pretreatment can weaken the bond strength of a sealant if the enamel surface is conditioned with self-etch adhesive.

Improved Production of Long-Chain Fatty Acid in Escherichia coli by an Engineering Elongation Cycle During Fatty Acid Synthesis (FAS) Through Genetic Manipulation

  • Jeon, Eunyoung;Lee, Sunhee;Lee, Seunghan;Han, Sung Ok;Yoon, Yeo Joon;Lee, Jinwon
    • Journal of Microbiology and Biotechnology
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    • v.22 no.7
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    • pp.990-999
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    • 2012
  • The microbial biosynthesis of fatty acid of lipid metabolism, which can be used as precursors for the production of fuels of chemicals from renewable carbon sources, has attracted significant attention in recent years. The regulation of fatty acid biosynthesis pathways has been mainly studied in a model prokaryote, Escherichia coli. During the recent period, global regulation of fatty acid metabolic pathways has been demonstrated in another model prokaryote, Bacillus subtilis, as well as in Streptococcus pneumonia. The goal of this study was to increase the production of long-chain fatty acids by developing recombinant E. coli strains that were improved by an elongation cycle of fatty acid synthesis (FAS). The fabB, fabG, fabZ, and fabI genes, all homologous of E. coli, were induced to improve the enzymatic activities for the purpose of overexpressing components of the elongation cycle in the FAS pathway through metabolic engineering. The ${\beta}$-oxoacyl-ACP synthase enzyme catalyzed the addition of acyl-ACP to malonyl-ACP to generate ${\beta}$-oxoacyl-ACP. The enzyme encoded by the fabG gene converted ${\beta}$-oxoacyl-ACP to ${\beta}$-hydroxyacyl-ACP, the fabZ catalyzed the dehydration of ${\beta}$-3-hydroxyacyl-ACP to trans-2-acyl-ACP, and the fabI gene converted trans-2-acyl-ACP to acyl-ACP for long-chain fatty acids. In vivo productivity of total lipids and fatty acids was analyzed to confirm the changes and effects of the inserted genes in E. coli. As a result, lipid was increased 2.16-fold higher and hexadecanoic acid was produced 2.77-fold higher in E. coli JES1030, one of the developed recombinants through this study, than those from the wild-type E. coli.

Fabrication and Characterization of Porous Carbon Electrode for Electrosorption (전기흡착용 다공성 탄소전극의 제조 및 특성 분석)

  • Park, Nam-Soo;Choi, Jae-Hwan
    • Journal of Korean Society of Environmental Engineers
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    • v.30 no.4
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    • pp.409-414
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    • 2008
  • Porous carbon electrode for electrosorption was prepared by a wet phase inversion method. Carbon slurry that was a mixture of activated carbon powder(ACP) and PVdF solution was cast directly upon a graphite sheet by means of a casting knife. Porous carbon electrodes were fabricated by immersing the cast film in pure water as a non solvent. Physical and electrochemical properties of carbon electrodes prepared with various ACP contents(50.0, 75.0, 83.3, 87.5, 90.0 wt %). From the SEM images we can verify that the electrode was porous. The average pore sizes determined for the electrodes fabricated with various ACP contents ranged from 72.7 to 86.4 nm and the size decreased as the ACP content increased. The electrochemical properties were characterized by cyclic voltammetry(CV) method. All of the voltammograms showed typical behavior of an electric double layer charging/discharging on the carbon surface. The capacitance increased with the ACP content and the values ranged from 2.18 F/cm$^2$ for 50 wt% ACP to 4.77 F/cm$^2$ for 90 wt% ACP.

A Cytochemical Study on the Acid Phosphatase of Neurons of Developing Chick Embryo Brain (계배 뇌 발생에 있어서 신경세포의 Acid Phosphatase 변화에 관한 효소화학적 연구)

  • Koh, Ki-Seok;Shin, Chu-Og;Yoo, Chang-Kyu;Choe, Rim-Soon
    • Applied Microscopy
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    • v.18 no.2
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    • pp.119-131
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    • 1988
  • The purpose of this study was to investigate the differentiation and degeneration of neurons in developing chick embryo. The activity of acid phosphatase(ACP) was measured and cytochemical study of ACP and ultrastructural changes were observed in prosencephalon, mesencephalon and rhombencephalon from day 4 to day 19 of incubation. As a result, the activity of ACP of all brain region was tend to increase from day 4 to day 19. On day 13, activities of ACP of mesencephalon and rhombencephalon were increased greatly and activity of ACP was decreased each region on day 17. On electron microscopic examination, the reaction product of ACP were localized at GERL complex, lysosome, Golgi body and vacuoles of neurons. Morphologically, disrupted nuclear envelope, mitochondrial destruction, vacuolization and ribosomal crystalization were observed.

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Antioxidant and Anti-dyslipidemic Effect of Artemisiae iwayomogii Herba, Curcumae longae Radix, and Plantaginis Semen Complex Extract(ACP) on HepG2 Cells (HepG2 cell에서 한인진, 울금, 차전자 추출물(ACP)의 항산화 및 항이상지질혈증 효과)

  • Jung, Eunsun;Cho, Hyun Kyoung;Kim, Yoon Sik;Yoo, Ho Ryong;Seol, In Chan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.32 no.1
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    • pp.13-23
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    • 2018
  • This study was performed to investigate the antioxidant and antidyslipidemic effects of Artemisiae iwayomogii Herba, Curcumae longae Radix and Plantaginis Semen complex extract(ACP) on HepG2 cells. We measured total polyphenols, total flavonoids, radical scavenging activity, and ABTS radical scavenging activity of ACP to evaluate its antioxidant activity. HepG2 cells were treated with ACP. Then, we evaluated ROS production; intracellular GSH content; GPx, GR, SOD, and catalase activities; free fatty acids and MDA levels; and mRNA expression levels of ACAT1 and HMG-CoA reductase. Results: ACP contains polyphenols and flavonoids and increased the DPPH and ABTS radical scavenging activities in HepG2 cells in a dose dependent manner. Also, ACP significantly reduced ROS production in HepG2 cells compared to the control group and significantly increased the GSH content, and elevated the enzyme activities of GPx, GR, and catalase in HepG2 cells compared to the control group. In addition, ACP reduced the mRNA expression of ACAT1 and HMG-CoA reductase in HepG2 cells compared to that in the control group. Conclusion: These results suggest that ACP has an antioxidant effect and may suppress the expression of dyslipidemia - associated genes and thus may be useful for the improvement of dyslipidemia.

CPP-ACP of artificially demineralized enamel surface and remineralization of material containing nano-sized carbonated apatite (인공 탈회된 법랑질 표면의 CPP-ACP와 nano-sized carbonated apatite 함유물질의 재광화효과)

  • Kim, Young-Sook
    • Journal of Korean society of Dental Hygiene
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    • v.8 no.1
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    • pp.13-22
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    • 2008
  • This study compared tooth's remineralization using enamel surface artificially demineralized with 0.1M lactate and HCL solution using Vicker's Hardness Number(VHN) to compare CPP-ACP and remineralization of nano-sized Carbonate Apatite's initial caries. Using pH circulation models divided into 0% nano-CA, 5% nano-CA, 10% nano-CA, 10% CPP-ACP and D.W. they were treated for 5 minutes, three times a day for 14 days to get the following results. 1. There were no significant differences among the initial surface hardness of samples demineralized surface of front tooth in 5 groups. and all 5 groups' surface hardness reduced significantly after demineralization of enamel. 2. When inquiring into hardness changes through pH circulation model, the highest hardness change was in 5% nano-CA group. Also. 10% nano-CA and 10% CPP-ACP groups increased significantly. but there was no significant difference statistically. In generalizing the above experiment results, nano-sized Carbonate Apatite showed remineralization, and compared to 10% CPP-ACP group, 5% nano-CA had remineralization to artificial caries. thus implies that when we develop method to contact with tooth of nano-CA in the future, it is expected to gain synergy effect on function of saliva, a natural remineralization material.

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A Bridge Transported Bilateral Force-Reflecting Servo-Manipulator for Maintenance of Nuclear Pyroprocessing Equipment

  • Park, B.S.;Jin, J.H.;Ko, B.S.;Lee, J.K.;Yoon, J.S.
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.2226-2230
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    • 2005
  • The Advanced Spent Fuel Conditioning Process (ACP), which is a pre-disposal treatment process for spent fuel is being developed at the Korea Atomic Energy Research Institute (KAERI). The ACP equipment is operated in an intense radiation field as well as in a high temperature. Thus, the equipment is designed in consideration of the remote handling and maintenance. This paper describes a Bridge Transported Bilateral Force-Reflecting Servo-Manipulator (BTSM) system, which is being developed to overcome the limitation of access that is a drawback of the mechanical Master-Slave Manipulators (MSMs), which are mounted on the ACP hot cell wall for the operation and the maintenance of the ACP equipment. The BTSM system was manufactured and temporally installed at the mockup to test its performance. The manufactured BTSM system will be installed at the ACP hot cell on June 2005 after the accomplishment of the performance test. The BTSM system consists of four components: a transporter with a telescoping tubeset, a slave manipulator, a master manipulator, and a remote control system. This system will highly increase the volume of coverage for the operation and maintenance of the ACP equipment.

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Convergence Study on Remineralization Effect of fTCP and CPP-ACP using QLF-D (QLF-D를 이용한 fTCP와 CPP-ACP의 재광화 효과에 관한 융합 연구)

  • Kang, Yong-Ju;Lee, Su-Young
    • Journal of the Korea Convergence Society
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    • v.7 no.6
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    • pp.133-139
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    • 2016
  • This study was to evaluate the change of mineral loss of fTCP and CPP-ACP in artificial caries lesions using QLF-D to compare the remineralization effect of recently developed fTCP and CPP-ACP, which is widely used as a remineralization cream in current dental clinics. Bovine specimens used in this study formed the artificial caries lesion immersing in demineralization solution for 10 days and were divided randomly into the following two groups; Group 1- Tooth Mousse containing 10% CPP-ACP, Group 2- Clinpro Tooth Creme containing 950ppm NaF and fTCP. Two tooth paste were applied to the artificial caries lesion of specimens and they were immersed in artificial saliva for 1 week. Mineral loss of artificial caries lesion was evaluated by fluorescence loss (${\Delta}F$) values using QLF-D. QLF-D analysis showed that the ${\Delta}F$ and ${\Delta}Fmax$ value increased 2.65 and 6.63, respectively, in the Tooth Mousse group, and the mineral loss decreased statistically significantly(p<0.05). However, Clinpro Tooth Creme group had no statistically significant difference. ${\Delta}Fmax$ value of Tooth Mousse group was statistically significant difference compared to the Clinpro Tooth Creme. Therefore, the Tooth Mousse containing 10% CPP-ACP is more effective than Clinpro Tooth Creme containing fTCP in the treatment of remineralization of artificial caries lesions.