The Stele for National Preceptor Hongbeop from the Jeongtosa Temple site in Chungju is one of the most important stone cultural heritage items for exemplifying the style of the Goryeo era. Despite its obvious value, this relic has been stored in a weathered condition at the National Museum of Korea. It had suffered various dismantling and displacements during the Japanese colonial period and had long been exposed in the open air. The stele was selected as a subject for the Stone Monuments Restoration Project launched by the National Museum of Korea in 2015. In preparation for its outdoor exhibition as part of the restoration project, this study investigated the characteristics of its materials, produced a map of its deterioration from weathering, and carried out ultrasonic analysis of the materials to provide findings useful for conservation treatment. The materials analysis revealed that the turtle-shaped pedestal of the stele was made from two-mica granite consisting of medium-grained quartz, plagioclase, alkali feldspar, biotite, and muscovite. Its body stone is crystalline marble, the rock-forming mineral in which is medium-grained calcite in a rose-pink color with dark grey spots. The dragon top of the stele is made of crystalline marble, the major component of which is medium-grained calcite of a light-grey color. The deterioration consists of 21.5% abrasion on the stone body, with its south face most damaged, and 18.6% granular disintegration, with the north face most damaged. The ultrasonic material characterization conducted for mapping the general condition of weathering shows low values on the parts-assembly area of the turtle-shaped pedestal and on the upper portion of the stone body. It is considered that there is dislocation due to partial blistering and fracturing as well as to the differences in surface treatment. Prior to the outdoor exhibition of the stele, the surface was cleaned of contaminants and was consolidated based on the scientific investigation in order to prevent weathering from the external environment.
Currently, Korea is facing dramatic nutrition transition among children, which may increase risk of degenerative diseases due to excessive intakes of fats, sugars and sodium. Promotion of eating healthier foods among children is difficult because the present nutrition label is not easily understood. Therefore, to promote healthier foods this study was aimed at developing guidance of standard amounts of high, medium and low levels of sugars, sodium, fats and other components contained in foods or drinks that are promoted to or formulated for consumption by children. Multipronged approach was used to collecting information, including key word searches in Medline and other databases, internet searches, reports from world organization, and contact of key individuals who work in organizations. We reviewed dietary reference intakes for Koreans, nutrient reference values, nutrient content claims of nutrition labeling, guideline daily amounts of United Kingdom, dietary guidelines and consumption data of nutrients, and selected components for labeling. And we decided goals of guideline daily amounts for children and nutrient criteria to underpin the high, medium and low content of each component. Then we collected data on processed foods sold at 12 middle schools and 11 high schools in Seoul, and classified processed foods into food category. Sales per one student per day were in the order of snacks, breads, and non-carbonated drinks. One hundred forty five mostly consumed products were selected and classified into criteria of high, medium and low total fat or sodium. Eighty five(58.6%) were classified into high fat food and only 11(7.6%) into high sodium food, in case that the base is chosen per 100 g or 100 mL. In conclusion, the nutrient criteria and choice of 100 g base, which we suggest in this study, need to be tested by simulation with more processed foods and refined in view of the practical issues suggested by stakeholders in future.
Kim, Hoon;Song, Ki-Yun;Jeong, Jae-Hyun;Jeong, Heon-Sang;Lee, Hyeon-Yong;Yu, Kwang-Won
Journal of the Korean Society of Food Science and Nutrition
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v.40
no.1
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pp.20-28
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2011
Crude polysaccharide (CP) was fractionated from the submerged culture (containing both mycelia and culture broth, SC) with Phellinus linteus (PL) in mushroom complete medium (MCM) supplemented with ginseng extract ($65^{\circ}$Bx, GE) to enhance the immune activity. PL-GE-15-CP from SC cultivated in MCM supplemented with GE-15% (v/v, a ratio of MCM volume to GE) showed significantly higher macrophage stimulation (1.45 fold of the saline control at $100{\mu}g$/mL) than PL-GE-5 and 10-CP with GE-5 and 10%, or PL-CP from SC without GE. The potent intestinal immune system modulating activity through Peyer's patch was also obtained by PL-GE-15-CP (1.46 fold). When PL-GE-15-CP further fractionated on DEAE-Sepharose CL-6B (Cl- form), PL-GE-15-CP-II was the significantly higher than others from PL-GE-15-CP or PL-CP on macrophage stimulation, interleukin (IL)-12 production and intestinal immune system modulation (1.54, 3.96 and 1.56 fold, respectively). PL-GE-15-CP-II also had higher anti-metastatic activity against colon 26-M3.1 carcinoma cell (57.3% inhibition of tumor control, $200{\mu}g$/mouse) rather than PL-CP-II. This active fraction (PL-GE-15-CP-II) mainly contained neutral sugar (82.45%) and uronic acid (12.99%), and component sugar analysis showed that PL-GE-15-CP-II consisted mainly of uronic acid, Ara, Man, Gal and Glc (molar ratio of 0.52:0.97:0.63:1.00:0.54). Furthermore, the activity of GE culture was higher compared with culture without GE, indicating that GE helped to enhance the immune activity of P. linteus; also, it is assumed that the polysaccharide plays an important role in immune enhancement.
Kim, Joo-Hyun;Lee, Yung-Kyoon;Kim, Hae-Won;Kim, Myung-Suk;Park, Chan-Woong;Lim, Jung-Kyoo
The Korean Journal of Pharmacology
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v.18
no.2
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pp.79-87
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1982
Higenamine(dl-demethylcoclaurine, dl-1-(4-hydroxybenzyl)-6,7-dihydroxy-1,2,3,4-tetrah-ydroisoquinoline hydrochloride), which has recently been isolated from Aconite root by Drs. Kosuge and Yokota, has known to be the main cardiotonic component of the Aconite root. The present study was undertaken to investigate the effects of Higenamine on the calcium binding and release and ATPase activity of fragmented cardiac sarcoplasmic reticulum under in vitro condition. The calcium binding and release of sarcoplasmic reticulum were measured by using the double-beam spectrophotometer and the calcium sensitive dye, murexide. In the presence of $10^{-4}{\sim}5{\times}10^{-3}M$ of Higenamine, the maximal calcium binding and the initial binding rate of porcine cardiac sarcoplasmic reticulum were inhibited dose dependently by up to 43%. However, the calcium release from cardiac sarcoplasmic reticulum, which was loaded with $Ca^{++}(50{\mu}M)$, was stimulated in dose dependent manner. When incubated in the medium of 20 mM Tris-maleate(pH 7.0), 100 mM KCl, 10 mM $MgCl_2,\;0.05mM\;CaCl_2\;and\;0.014{\sim}1\;mM\;Tris-ATP\;at\;30^{\circ}C$ in the presence of Higenamine $(10^{-4}{\sim}5{\times}10^{-3}M)$, both $Ca^{++}-and\;Mg^{++}-ATPase$ of sarcoplasmic reticulum were inhibited non-competitively by Higenamine and values of $K_i$ were 4.896 mM and 6.875 mM respectively. It is suggested from the above findings that the cardiotonic effects of Higenamine might be partially explained by the inhibition of calcium binding and the stimulation of calcium release from the sarcoplasimic reticulum which may increase the free intracellular calcium that is available in the contraction of the cardiac muscle fiber.
This study was carried out to investigate the effect of $NO_3{^-}$ and $NH_4{^+}$ on the adventitious root growth and eleuthroside synthesis of Eleutherococcus senticosus during 3 L-bioreactor culture. The change of medium component ratio was also measured during culture. The fresh weignt of adventitious root reached to the greatest level of 24.4g FW/L in the presence of 50 mM $NO_3{^-}$ and 10 mM $NH_4{^+}$, representing 3.4-fold increase compared to the 60 mM $NH_4{^+}$. However, as the increase of the portion of $NH_4{^+}$, the root growth was decreased. Maximum eleutheroside B and E1 production were $249{\mu}g/g$ and $43{\mu}g/g$, respectively, with 30 mM total nitrogen source. The maximum production of eleutheroside E were $788{\mu}g/g$ with 120 mM total nitrogen source. The greatest weight of adventitious root increased up to 6.2 fold of inoculum size within 9 weeks. The change of pH was influenced from 4.81 to 6.35 and the amounts of $NH_4{^+}$ and $K^+$ were decreased during culture periods. From these results we suggest, need further study of various treatment to increase the growth of biomass and the accumulation of useful secondary metabilites.
Burr, Hermann;Berthelsen, Hanne;Moncada, Salvador;Nubling, Matthias;Dupret, Emilie;Demiral, Yucel;Oudyk, John;Kristensen, Tage S.;Llorens, Clara;Navarro, Albert;Lincke, Hans-Joachim;Bocerean, Christine;Sahan, Ceyda;Smith, Peter;Pohrt, Anne
Safety and Health at Work
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v.10
no.4
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pp.482-503
/
2019
Introduction: A new third version of the Copenhagen Psychosocial Questionnaire (COPSOQ III) has been developed in response to trends in working life, theoretical concepts, and international experience. A key component of the COPSOQ III is a defined set of mandatory core items to be included in national short, middle, and long versions of the questionnaire. The aim of the present article is to present and test the reliability of the new international middle version of the COPSOQ III. Methods: The questionnaire was tested among 23,361 employees during 2016-2017 in Canada, Spain, France, Germany, Sweden, and Turkey. A total of 26 dimensions (measured through scales or single items) of the middle version and two from the long version were tested. Psychometric properties of the dimensions were assessed regarding reliability (Cronbach α), ceiling and floor effects (fractions with extreme answers), and distinctiveness (correlations with other dimensions). Results: Most international middle dimensions had satisfactory reliability in most countries, though some ceiling and floor effects were present. Dimensions with missing values were rare. Most dimensions had low to medium intercorrelations. Conclusions: The COPSOQ III offers reliable and distinct measures of a wide range of psychosocial dimensions of modern working life in different countries; although a few measures could be improved. Future testing should focus on validation of the COPSOQ items and dimensions using both qualitative and quantitative approaches. Such investigations would enhance the basis for recommendations using the COPSOQ III.
The Korean Journal of Oral and Maxillofacial Pathology
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v.42
no.5
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pp.111-118
/
2018
Nicotine of tobacco component has a controversial impact in the clinical outcome of dental implants. Although numerous nicotine effects on bone healing around implants have been presented, it is rarely reported in vitro study about normal human osteoblast(NHost) from oral and maxillofacial area at the surface of implants. The purpose of the present study was to evaluate the effect of nicotine on the proliferation and differentiation response of NHost to plasmatic and salivary levels of nicotine reported in smokers at the surface of screw-type plasma-sprayed titanium implants. NHosts were seeded on the surface of titanium implants and cultured for 21 days in ${\alpha}-MEM$ supplemented with 10% FBS, 50mg/ml ascorbic acid, 5mM ${\beta}$-glycerophosphate and 100nM dexamethasone. Seeded implants were exposed to various nicotine concentration(0.05-0.5mg/ml) from 1 to 21 days, and characterized for cell morphology, proliferation, differentiation, alkaline phosphatase(ALP) activity and ionized calcium concentration(Cai) of medium. Continuous exposure to higher nicotine concentration(above 0.3mg/ml) induced a dose- and time-dependent vacuolation of the cytoplasm, and a tendency to detach from the implant surface. 0.05mg/ml(lower nicotine concentration) did not cause significant effects in the cell proliferation and ALP activity. 0.1-0.2mg/ml caused evident dose-dependent effects in increased cell proliferation, ALP activity and earlier onset of matrix mineralization at levels up to 0.2mg/ml, while a dose-dependent inhibitory effect at 0.3-0.5mg/ml. Cai concentration of control group was decreased at 14 days. Increased Cai concentration at 0.1-0.2mg/ml, decreased Cai concentration at 0.3mg/ml and no change at 0.5mg/ml during the culture period were seen. It suggested that nicotine concentration could paly an role in modulating NHost activity as a contributing factor associated with proliferation and differentiation of NHost at the surface of implants.
The present study was conducted to examine the feasibility of utilising bamboo (Bambusa arundinacea) shoot shell (BSS) in ruminants. Chemical composition, rumen degradability and some antinutritional compounds were determined for fresh and boiled BSSs to evaluate its feed value and safety. Thirty-two Holstein heifers were allocated to four groups and used to investigate the response in growth rate to supplementing ammoniated rice straw with fresh shell (phase 1) or silage of boiled BSS (phase 2). All animals were offered ammoniated straw ad libitum with 1kg of cotton seed meal (phase 1) or 0.5 kg of cotton seed meal and 0.5 kg of concentrate mixture (phase 2) per head per day. The BSS was supplemented at levels of 0, 3, 6 or 9 kg/d (phase 1) and 0, 5, 10 or 15 kg/d (phase 2) (as fed basis). The BSS was very high in moisture content, and its contents of crude protein and neutral detergent fiber were 13~16% DM and 65~76% DM, respectively; boiling resulting in higher moisture and protein. No hydrocyanic acid was detected in both BSSs and content of tannins was negligible. Rumen degradability of BSS was reasonably high, and with boiling the rapidly degradable fraction decreased, and potentially degradable component increased. Silage of the boiled BSS was slightly lower in both rapidly and slowly degraded fractions than the fresh BSS. Animals consumed all supplemented BSSs without any adverse health problems. Intake of ammoniated straw decreased with the increasing levels of BSS, but total intake was higher in almost all supplementary groups than in the non-BSS. Heifers had a higher growth rate in phase 1 with fresh BSS than in phase 2 with ensiled shell, and daily weight gains were 622, 629, 744 or 690 g in phase 1, and 578, 575, 677 or 635 g in phase 2 at four BSS levels, respectively. For both phases growth rate was significantly higher for the animals in groups 3 and 4 than those in groups 1 and 2 (p<0.01), with little difference between groups 1 and 2 (p>0.05) but significant difference between groups 3 and 4 (p<0.05). Supplementation with BSS also resulted in an improved feed conversion rate, with the least concentrate consumption in group 3 for both phases. It is concluded that the BSS has a high potential nutritional value as indicated by its medium protein content, reasonably high rumen degradability, and that inclusion of BSS in ammoniated rice straw diet is not only safe to animals, but also may improve growth rate of ruminants and feed conversion rate. It may be disadvantageous to use high amounts of BSS in ammoniated straw diets.
Kim, Yeon-Kye;Nam, Ki-Ho;Park, Sun Young;Kim, Do Youb;Kang, Sang In;Han, Sang-Kuk;Kim, Jin-Soo
Korean Journal of Fisheries and Aquatic Sciences
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v.52
no.1
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pp.1-12
/
2019
We investigated the nutritional components of the major commercial frozen seafood products (MCFSP) [sliced frozen-skipjack tuna (ST), -bigeye tuna (BET), -bluefin tuna (BFT), -yellowfin tuna (YT), fish steaks (FST), fish pancakes (FP), fish cutlets (FC), seafood cake balls (SCB), fried shrimp (FS), shrimp patties (SP), shrimp cutlets (SC)] in Korea. All species of sliced frozen tuna and FST were classified as low-calorie foods; the other frozen seafood products were classified as medium-calorie foods. The MCFSP were significant sources of nutritional and functional minerals: the SCB and SC provided calcium; the FST, FC, and SCB provided phosphorus; the BET, YT, and FST provided potassium; the FST, FC, and BFT provided magnesium; the FST, FP and SC provided iron; the SCB, FS, SP, and SC provided zinc; the YT and SCB provided copper; and the FC provided manganese. The total amino acid contents of the MCFSP were in the range of 6.85-26.34 g/100 g. Glutamic acid was the major amino acid in the SCB, FS, SP, and SC. Fatty acid contents were in the range of 386-2,925 mg/100 g; the major fatty acids in the ST, BFT and YT were 16:0, 18:1n-9, 22:6n-3. The MCFSP were not a significant source of vitamin A or riboflavin.
Park, Jin-Young;Lee, Jae-Yun;Kim, Hyun-Tae;Kim, Sam-Soo;Kim, Sung-Yun;Kim, Mun-Ock;Lee, Jae-Dong
Journal of Mushroom
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v.4
no.3
/
pp.88-100
/
2006
This study was performed to investigate the effective components of media of Pleurotus eryngii for bottle cultivation and several alternative material for reducing cost and smooth supply. The results show that Potato starch, Cocoa shell, Corn gluten feed, Soybean flour(solvent extracted), Cottonseed hull, Poultry manure can be replaced in Bean curd dregs of basal substrates. Especially addition of Soybean flour at 2~8% and Poulty manure at 2% in place of Bean curd dregs is effective for mycelial growth of P. eryngii, Also Pine sawdust appears that can be replaced by Softwood sawdust and addition of softwood sawdust at 25.2% is most effective. Addition of $CaCO_3$, at 2~3%, $K_2CO_3$, at 0.2%, $MgSO_4{\cdot}7H_2O$ in 0.1%, $MnSO_4{\cdot}5H_2O$ in 0.05% is effective for mycelial growth of P. eryngii, Activation materials used in this study have not enough benefit for mycelial growth in the financial aspect.
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