''Nokyang', a new high biomass yield and whole crop silage rice (Oriza sativa L.) cultivar, was developed by the rice breeding team of National Institute of Crop Science, RDA, Suwon, Korea, during the period from 1996 to 2006 and released in 2007. It was derived from a cross between Yongmoonbyeo/IR67396-16-3-3-1. This cultivar has about 130 days of growth duration from seeding to heading and is tolerance to lodging with erect pubescent leaves, semidwarf (culm length 78 cm) and thick culm. This cultivar has less tillers per hill and more spikelet numbers per panicle than Dasanbyeo. 'Nokyang' has wide and stay green leaf compared other Tongil-type varieties. This new variety is resistant to grain shattering and to some disease including bacterial leaf blight and stripe virus. This variety has good qualities for whole crop silage with high TDN (Total Digestive Nutrient) yield and low NDF (Neutral Detergent Fiber) and low ADF (Acid Detergent Fiber) and high RFV (Relative Feed Value) compared to common high grain yield varieties. The biomass and TDN yield performance of 'Nokyang' is 1,652 MT/ha, 9.9 MT/ha, individually in local adaptability test for three years. 'Nokyang' is adaptable to central plain area, south-eastern plain area of Korea.
Thromboelastography(TEG) is the unique measure that gives rapid information about the whole clotting process. Simplifying the diagnosis of coagulopathy during operations, TEG can provide an adequate therapy for postoperative bleeding. Remarkable improvement in hemostasis after cardiopulmonary bypass(CPB) has been achieved by the treatment with proteinase inhibitor aprotinin, but the hemostatic mechanism of aprotinin during CPB is still unclear. This study was designed to evaluate the effects of aprotinin on coagulation system during CPB by using TEG. Forty patients who underwent CPB were divided into two groups: aprotinin(2u 106 kallikrein inhibition units, as a single dose into the cardiopulmonary bypass priming solution) treatment group(male 14, female 8, mean age=50.Byears) and no aprotinin treatment(control) group(male 10, female 8, mean age=53.4 years). TEG, activated clotting time, prothrombin time, activated partial thromboplastin time, platelet counts, fibrinogen an (ibrinogen degradation product(FDP) concentrations were checked before and after CPB(30 minutes after neutralization of heparin effect by protamine sulfate). There was no significant difference in other conventional coagulation tests of two groups except postcardiopulmonary bypass FDP concentration in control group, which was significantly increased compared to that in aprotinin group(p<0.05). In TEG variables of both groups, clot formation time(K) and alpha $angle(\alpha^{\circ})$ were significantly increased and decreased, respectively, after CPB(p<0.05), but fibrinolytic index(LYS60) was not changed during CPB. In aprotinin group, reaction time(R) was decreased significantly after CPB(p<0.05) but maximum amplitude(MA) was not changed(p>0.05). On the contrary, R was not changed markedly but MA was decreased significantly in control group after CPB(p<0.05). This result shows that main change in coagulation system during CPB is not hyperfibrinolysis but cecrease in clot strength by platelet dys unction, and the main effect of aprotinin during cardiopulmonary bypass is the maintenance of clot strength to the pre-CPB level by the preservation of platelet function.
O, Yeong-A;Kim, Gyeong-Cheol;Yu, Seung-Su;Jeong, Seon-Yong;Kim, Seong-Jun
한국생물공학회:학술대회논문집
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2002.04a
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pp.441-444
/
2002
This study was targeted to develope a microbial consortium having high cellulase production. A filamentous fungus, strain FB01, isolated from a compost showed high ${\beta}-glucosidase$ activity especially. The strain FBOl was co-cultured with Trichoderma viride to enhance the productivity of ${\beta}-glucosidase$, changing inoculation time of one strain (FB01). The microbial consortium prepared showed the higher cellulytic enzyme production than T. viride well-known. The maximal enzyme production was obtained when the microbial consortium was cultured at $30^{\circ}C$ and pH 6.0 for 10days and the activities of CMCase, ${\beta}-glucosidase$, and avicelase were 2.0, 0.8, and 0.2 U/mL, respectively. These enzyme activities were 2, 4, and 2 times as high as those of CMCase, ${\beta}-glucosidase$, avicelase from T. viride, respectively, indicating that a synergistic interaction appeared between T viride and strain FB01. The serial subcultures by pH control increased ${\beta}-glucosidase$ production about 3.2 times. Also, enzyme production using rice-straw as a carbon source showed that the activities of CMCase, ${\beta}-glucosidase$, and avicelase were 3.69, 0.76, 0.17 U/mL, respectively, and ${\beta}-glucosidase$ activity was 1.5 times higher than that of T. viride. Consequently, microbial consortium showed the considerabely enhanced production of the cellullolytic enzymes, such as CMCase, ${\beta}-glucosidase$, and avicelase compared those of T. viride, and a favorable stability for the enzyme production even in the serial subcultures.
Because of high contents of cellulose (~37 wt%) and hemicellulose (~17%), rice straw seems to be a potential lignocellulosic biomass for production of bioethanol. In this study, Ammonia Recycled Percolation (ARP) pretreatment of rice straw was extensively investigated. In particular, the experimental study included the effects of temperature, reaction time and concentration of ammonia on compositions and enzymatic digestibility of the resulting solid residues; the ranges of pretreatment conditions were, in turn, $150{\sim}190^{\circ}C$, 10~90 min and 0~20 wt%. Through ARP pretreatment, the lignin content was reduced by as high as ~84% while 20~80% of the hemicellulose was also solubilized. The solid residue resulted from the pretreatment with 15 wt% aqueous ammonia solution at $170^{\circ}C$ for 90 mim showed as high as ~90% of digestibility with 15FPU/g of glucan enzyme loading. Supplement of xylanese to cellulase led to a notable enhancement of digestibility, indicating a discernable inhibitory role of hemicellulose. Simultaneous Saccharification and Fermentation (SSF) and Simultaneous Saccharification and Co-Fermentation (SSCF) were performed to obtain ethanol productions of 13.8 g/L (corresponding to 81% yield) and 15 g/L (corresponding to 89% yield), respectively.
Kim, Eun-Mi;Choi, Jin-Ho;Choi, Kum-Boo;Yeo, Ik-Hyun
Journal of Nutrition and Health
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v.43
no.1
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pp.5-11
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2010
We conducted comparative study on metabolizable energy content of extracts of angelica keiskei and its byproduct. Total six different groups consisting of five test groups treated with angelica keiskei and one control group were compared. Each of the five test groups were given 30% of one of whole plant, extracts, fermented of extracts, byproduct and extracts plus byproduct, respectively, mixed with AIN93M. After 3 days of adjustment period, all groups were subjected to 4 days of test period during which the amounts of feed intake and excretion were measured everyday. All feces were treated for the prevention of decomposition and changes before its energy content were measured using a bomb calorimeter. The amount of excretion was $4.8\;{\pm}\;0.3\;g$/rat/3 days in control group and 9.9-15.0 g/rat/3 days in the groups were added with extracts of angelica keiskei indicating that the angelica keiskei-treated groups produce 2-3 times more excretion. Metabolic energy of control diet was 4,133.3 kcal. This was found to be 15 to 20% higher compared with the metabolic energy content ranging from 3,117.0 kcal/kg (extracts of angelica keiskei) to 3,259.8 kcal/kg (extracts plus byproducts) angelica keiskei-treated groups. This is interpreted as the result of the decreased metabolic energy in the test diets were substituted with 30% of ngelica keiskei-treated ingredient which has low metabolic content itself. One notable finding is that the metabolic content of the group mixed with byproducts and extracts (1,763.0 kcal/kg) is 27% higher than that of extracts of angelica keiskei (1,286.8 kcal/kg) indicating that mechanical grinding increases the rate of digestion and absorption increasing, in turn, the energy content used in the body. The results of analysis of overall caloric absorption showed absorption rate in order of Whole plant < extracts < byproduct < extract plus byproduct < fermented of extract.
This study was performed to investigate the effects of microbial augmentation on the biological treatment of paper mill wastewater. Three bacteria (KN11, KN13, KN27) capable of degrading aromatic compounds and a bacterial strain (GT21) producing an extracellular cellulase were isolated from soil and wastewater by selective enrichment culture. Through morphological, physiological, and biochemical taxonomies, isolated strains of KN11, KN13, KN27, and GT21 were identified as Acinetobacter sp., Neisseria sp., Bacillus sp., and Pseudomonas sp. and named Acinetobacter sp. KN11, Neisseria sp. KN13, Bacillus sp. KN27, and Pseudomonas sp. GT21, respectively. For analysis of non-biodegradable and chemical oxygen demand (COD)-increasing matter in a paper mill wastewater, we utilized GC/MS to detect aromatic compounds and their derivatives containing several substituted functional groups. The microbial augmentation, J30 formulated with the mixture of bacteria including Acinetobacter sp. KN11, Neisseria sp. KN13, Bacillus sp. KN27, and Pseudomonas sp. GT21, was used for the treatment of paper mill wastewater. The optimum temperature and pH for COD removal of the microbial augmentation, J30, were $30^{\circ}C$ and 7.5, respectively. For evaluation of the industrial applicability of the microbial augmentation, J30 in the pilot test, treatment efficiency was examined using paper mill wastewater. The microbial augmentation, J30, showed a COD removal rate of 87%. On the basis of the above results, we designed the wastewater treatment process of the activated sludge system.
Journal of The Korean Society of Grassland and Forage Science
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v.36
no.2
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pp.98-103
/
2016
This study was conducted to evaluate the milk productivity and nutrient balance in organic dairy farms located at Gochang-gun of Korea with different feed sources. The total number of organic dairy farms was 12 in 2012, 13 in 2013, and 14 in 2014. The numbers of farms and dairy herds were increased each year. The average milk yields in 2012, 2013, and 2014 were 25.5, 24.6, and 24.4 kg/d, respectively. The average milk fat contents in 2012, 2013, and 2014 were 3.5%, 3.6%, and 3.7%, respectively. The average milk protein contents in 2012, 2013, and 2014 were 3.3%, 3.4%, and 3.4% in 2012, 2013, and 2014, respectively. Although the average milk yield of organic dairy farms was 9 kg/cows/d less than the average milk yield of other dairy farms in Korea, milk fat and protein contents of organic dairy farms were higher than those of other dairy farms. Alfalfa hay, oat hay, corn silage, rye grass silage, Sudan grass silage, rice straw, and barley silage were commonly used as forage sources in organic dairy farms. The average silage intake (15.6 kg/cow/d) of organic dairy farms in 2013 was higher (P < 0.05), while the average hay intake (5.1 kg/cow/d) in 2014 was higher (P < 0.05) than that of other feed intake. Net energy for lactation ($NE_L$) and metabolizable protein (MP) were calculated in accordance with NRC (2001). Net energy for lactation intake was higher (P < 0.05) while MP intake was lower (P < 0.05) than NRC recommendation values in 2013 and 2014. These results indicate that domestic organic dairy farms should use feed considering energy and protein balance recommended by NRC.
Journal of The Korean Society of Grassland and Forage Science
/
v.26
no.4
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pp.249-256
/
2006
The object of this experiment was to suggest the optimum autumn sown small forage crops as next forage crops harvested maize in Daejeon area. The field trials was conducted from 2002 to 2004 at Chungnam National University in order to evaluate the dry matter yield and qualities of the autumn sown small forage crops. The experiment was consisted of split plots (main plot : forage crops as rye, barley and wheat, and sub plot 4 harvest stages as boot, heading, milk and dough) design with three replications. The average DM yield for 2 years of rye was higher than that of other forage crops (p<0.01). As stages proceed, the DM yield tended to increase in all forage crops (p<0.01). In chemical composition, they had a difference on forage crops and stages. The crude protein (CP) was higher in barley (p<0.01), but fibrous contents such as NDF, ADF, cellulose and lignin were lower in wheat than in the other forage crops (p<0.01). In Daejeon area, although barley and wheat at milk and dough stages were observed with maximum yield and high quality as autumn sown forage crops, due to late harvesting periods, it is difficult to utilize them as previous forage crops seeded in maize. Based on the result mentioned above, it is concluded that rye harvested at boot to heading stages is the most suitable fur autumn sown small forage crops in Daejeon area. Meanwhile, in order to have the option of nutritional value in wheat and barley, they need to be supplied early maturing and high-yield variety of wheat and barley.
Background: The purpose of this study was to independently evaluate the beneficial effects of a high dose of transamine administrated prior to CPB on the postoperative hematologic aspect and bleeding. Materials and methods: This study included randomly selected groups of 40 adult patients undergoing OHS with CPB. All patients were divided into 2 groups: transamine group (T-group, n=20) and placebo group(P-group, n=20). The T-group received a high-dose of transamine(10 g) before and during CPB. The P-group received normal saline at the same times and served as a control group. Results: The results of comparative studies between the 2 groups in the same hematologic variables were summarized as follows. \circled1 During CPB, the fibrinogen concentrations and platelet counts were significantly lower in the P-group than in the T-group(p<0.01). \circled2 During CPB, production of D-dimer occurred in 18 patients(90%) in the P-group and did not occur in the T-group(0%) (p<0.0001). \circled3 At CPB-off, the % concentration of fibrinogen(70.2$\pm$3.9%) and the % platelet counts(72.4$\pm$4.5%) of the T-group were significantly higher than those(54.5$\pm$3.8%, 64.3$\pm$2.9%) of the P-group(p<0.01). \circled4 Postoperative values of PT(14.0$\pm$0.03 sec.) and aPTT (27.6$\pm$0.1 sec.) of the T-group were significantly lower than those(16.0$\pm$0.02sec., 30.1$\pm$0.1sec.) of the P-group(p<0.05). \circled5 Postoperative bleeding and requirement of whole blood and other blood products were significantly less in the T-group than in the P-group(p <0.05). \circled6 There were no significant hypercoagulability signs such as cerebral em bolism, myocardial infarction, pulmonary embolism, or any other neurological prob lems in either group. Conclusions: We concluded that a high dose of transamine administered prior to CPB prevents the activation of fibri nolytic system and has beneficial effects of reducing the postoperative bleeding t endency without apparent hypercoagulability signs.
Kim Young-Min;Hong Hyun-Kee;Kim Sung-Do;Cho Byoung-Soo
Childhood Kidney Diseases
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v.8
no.1
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pp.26-32
/
2004
Purpose : Hypercoagulability is present in patients with nephrotic syndrome. Plasminogen activator inhibitor type 1(PAI-1) is a major inhibitor of plasminogen activators. PAI-1 inactivates both tissue plasminogen activator(tPA) and urokinase plasminogen activator(uPA) by rapid formation of inactive 1:1 stoichiometric complexes. Recently some studies showed that the enhanced PAI-1 expression may be involved in the intraglomerular fibrinogen/fibrinrelated antigen deposition seen in nephrotic syndrome. Methods : PAI-1 gene promoter -844(G/A) polymorphism was evaluated in 146 children with minimal change nephrotic syndrome(MCNS) and 230 control subjects. The patients with MCNS were subdivided into 85 infrequent-relapser(IR) group and 61 frequent relapser(FR) group. PCR of PAI-1 gene promoter region including -844(G/A) and RFLP using the restriction enzyme Xhol were performed for each DNA samples extracted from the groups. Results : The distribution of PAI-1 genotype in the control group was G/G 81(32.5%), A/A 42(16.9%), and G/A 126(50.6%). The distribution of PAI-1 genotypes in the IR group of MCNS was G/G 29(34.1%), A/A 15(17.7%), and G/A 41(48.2%). The distribution of PAI-1 genotype in the FR group of MCNS was G/G 17(27.9%), A/A 18(29.5%), and G/A 26(42.6%). There was a significantly increased frequency of A/A genotype(P=0.0251) in the FR group of MCNS. Conclusion : Our results indicate that the PAI-1 gene promoter A/A genotype may be associated with the FR in MCNS.
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