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The rs196952262 Polymorphism of the AGPAT5 Gene is Associated with Meat Quality in Berkshire Pigs
Woo Bum Park,Sang Mi An,Go Eun Yu,Seulgi Kwon,Jung Hye Hwang,Da Hye Park,Deok Gyeong Kang,Tae Wan Kim. Hwa Chun Park1. Jeongim Ha*.,Chul Wook Kim* 한국축산식품학회 2017 한국축산식품학회지 Vol.37 No.6
High-quality meat is of great economic importance to the pig industry. The 1-acylglycerol-3- phosphate-O-acyltransferase 5 (AGPAT5) enzyme converts lysophosphatidic acid to phosphatidic acid in the mitochondrial membrane. In this study, we found that the porcine AGPAT5 gene was highly expressed in muscle tissue, influencing meat characteristics, and we also identified a non-synonymous single-nucleotide polymorphism (nsSNP) (rs196952262, c.673 A>G) in the gene, associated with a change of isoleucine 225 to valine. The presence of this nsSNP was significantly associated with meat color (lightness), lower cooking loss, and lower carcass temperatures 1, 4, and 12 h after slaughter (items T1, T4, and T12 on the recognized quality scale, respectively), and tended to increase backfat thickness and the waterholding capacity. These results suggest that nsSNP (c.673A>G) of the AGPAT5 gene is a potential genetic marker of high meat quality in pigs.
아세톤-물혼합용매에서 trans-[Co(en)_2Cl_2]^+ 및 trans-[Co(1,3-pn)_2Cl_2]^+ 이온의 가용매 분해 반응에 미치는 압력과 용매조성의 영향
朴裕哲,卞鍾轍,金京美,趙靈濟 慶北大學校 1984 論文集 Vol.38 No.-
The rates of solvolysis of trans-[Co(en)_2CL_2]^+ and trans- [Co(1,3-pn)_2CL_2]^+, in which en and 1,3-pn are ethylenediamine and 1,3-propylenediamine resepectively, have been investigated using conductometric and spectrophotometric methods at various pressures up to 2,000 bar in aceton-water mixture. The activation volumes obtained from the pressure effect on rate constants were small and positive values in both complexes of trans- [Co(en)_2Cl_2]^+ and trans- [Co(1,3-pn)_2CL_2]^+. These results are discussed in terms of dissociative mechanism (S_NI) for the solvolysis of both complexes. The importance of solvent composition on the reaction is further confirmed by application of a free energy cycle. It is concluded from the free energy cycle that the effect of solvation of transition state in the solvolysis of both complexes is more dominant than that of initial state. In addition to that, it is shown that the character of S_NI is further increased with increasing the content of acetone.
Polyaminocarboxylatonickelate(Ⅱ)와 Cu(Ⅱ)이온의 금속치환 반응속도에 관하여
박유철 경북대학교 교육대학원 1979 논문집 Vol.11 No.-
The metal-ion substitution reactions of polyaminocarboxylatonickelate(Ⅱ) (iminodiacetic acid and nitrilotriacetic acid) with Cu(Ⅱ) ion have been studied. In iminodiacetatonickelate(Ⅱ)-Cu(Ⅱ) system the kinetics has been investigated spectrophotometrically at the ionic strength 2.0, temperature 25℃ and pH 3.0∼5.0. From the observed rate constants the over-all rate law of metal-ion substitution reaction is expressed as follows: Rate=(k_01'+k_02'[Cu(Ⅱ)+k_03[H^+]) [Ni(Ⅱ)L] where L is iminodiacetic acid. The values of rate constants, k'_01 k'_02 and k_03' are 2.1×10 exp(-4) sec^-1, 1.8×10 exp(-2) M^-1 sec^-1 and 1.2M^-1 sec^-1, respectively. The reaction between nitrilotriacetatonickelate(Ⅱ) and Cu(Ⅱ) ion have been investigated by polarography at ionic strength 1.0, temperature 50℃ and pH 2.6∼3.5. Experimental results are consistent with the rate law as follows; Rate=(k_01''+k_02''[H^+]+k_03''([H^+]/[Ni(Ⅱ)]))[Ni(Ⅱ)L] where L is nitrilotriacetic acid. The values of rate constants, k_01'', k_02'' and k_03'' are 1.2×10 exp(-3) sec^-1, 0.43 M^-1 sec^-1 and 4.41×10 exp(-3) sec^-1, respectively. In both substitution reactions, reactionpathway and mechanisms are discussed.
고압하에서 cyclotetramine 착이온(Cu-N_4^2+)과 음이온(S_2O_3^2-, SCN^-, I^- 및 NO_2^-)간의 화학평형반응
박유철,변종철 慶北大學校 1982 論文集 Vol.33 No.-
The equilibrium reactions between dl-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-1,7-dienecopper(Ⅱ) complex ion and the basic ligands, L, given below have been investigated in a aqueous solution by using spectrophotometric method. Cu(dl-trans-1,7-diene)^2++L^n-??[Cu(dl-trans-1,7-diene)·L]^(2-n)+ In the reaction equation, L were S_2O_3^2-, SCN^-, I^- and NO_2^-. The absorption maximum of the complex ion, Cu(dl-trans-1,7-diene)^2+ shifted to longer wave-lengths in the above ligand solutions. The pressure effects on the chemical equilibrium were measured in the range of 1-1500 bar. The measurements of pressure effect on the absorption spectrum showed an decrease in an extinction coefficient with increasing pressure. At the room temperature, the equilibrium constants decreased with increasing pressure for anionic ligands, S_2O_3^2-, SCN^-, I^- and NO_2^- were 10.7, 2.4, 1.8 and 1.2 at 1 bar and 3.0, 1.0, 0.3 and 0.5 at 1,500 bar, respectively. The changes of reaction volume were the positives which are agreed with the trend of the reaction entropy changes. The pressures, at which are changes of reaction volume were no more appeared, were around 500 bar for SCN^- and NO_2^- ions, while were around 1,500 var for S_2O_3^2- and I^- ions. By comparing both the equilibrium constants experimentally determined and those calculated according to Fuoss's ion-pair equation, the deriving forces of the adduct formed, [Cu(dl-trans-1,7-diene)·L]^(2-n)+ were discussed.
물-에탄올 혼합용매에서 Co(Ⅱ)-THPP(THPP: tetrakis-(ortho-hydroxy)phenylporphyrin) 착화합물 생성반응
朴裕哲,孫景千 慶北大學校 自然科學大學 1987 自然科學論文集 Vol.5 No.-
5, 10, 15, 20-tetrakis(ortho-hydroxy)phenylporphyrin(THPP) was synthesized by refluxation of (ortho-hydroxy)benzaldehyde with pyrrol in propionic acid. The protonation constants(K^H) of THPP were studied by spectrophotometric method at λ=540nm. From the results of this experiment, it showed that THPP exists in three ionic speces, THPPH_3^+, THPPH_2 and THPPH^- in pH=2∼11. The values of the protonation constants were THPPH^-+H^+??THPPH_2 ; K_2^H=3.421×10^5 THPPH_2+H^+??THPPH_3 ; K_3^H=1.887×10^9 The rate constants of the complex formation reaction of Co(Ⅱ) with THPP were studied in ionic strength of 0.1M NaCIO_4 at pH=3.5. The rate constants(sec^-1) were 1.440×10^-4, 1.380×10^-3, 5.400×10^3 and 1.220×10^-2 at T=25, 30, 35 and 40℃, respectively. The activation parameters, ΔH^≠ and ΔS^≠ were 53 kcal·mol^-1 and 102cal·mol^-1·deg^-1, respectively.
아세톤-물혼합용매에서 trans-[Co(en)_2Cl_2]^+ 및 trans-[Co(1,3-pn)_2Cl_2]^+ 이온의 가용매 분해 반응에 미치는 압력과 용매조성의 영향
朴裕哲,卞鍾轍,金京美,趙靈濟 慶北大學校 物理化學硏究所 1985 硏究論文集 Vol.6 No.-
The rates of solvolysis of trans-[Co(en)_2Cl_2]^+ and trans-[Co(1,3-pn)_2Cl_2]^+, in which en and 1,3-pn are ethylenediamine and 1,3-propylenediamine resepectively, have been investigated using conductometric and spectrophotometric methods at various pressures up to 2,000 bar in acetone-water mixture. The activation volumes obtained from the pressure effect on rate constants were small and positive values in both complexes of trans-[Co(en)_2Cl_2]^+ and trans-[Co(1,3-pn)_2Cl_2]^+. These results are discussed in terms of dissociative mechanism (S_NI) for the solvolysis of both complexes. The importance of solvent composition on the reaction is further confirmed by application of a free energy cycle. It is concluded from the free energy cycle that the effect of solvation of transition state in the solvolysis of both complexes is more dominant than that of initial state. In addition to that, it is shown that the character of S_NI is further increased with increasing the content of acetone.
물-아세톤 혼합용매에서 trans-[Co(N-Eten)_2Cl_2]^+착이온의 가용매분해 반응속도에 미치는 온도 및 압력의 영향
박유철,김경미 慶北大學校 1983 論文集 Vol.36 No.-
The rates of solvolysis of the complex ion, trans-Co(N-Eten)_2Cl_2+, in water-acetone mixture have been investigated using spectrophotometric method at various pressures and temperatures. The rate constants in aqueous acetone solutions are analyzed with the solvent compositions which gave been characterized in terms of Y parameter representing solvent ionizing power. The logarithms of rate constants are non-linearly correlated with parameter, Y. It suggested that the effects of solvent compositions on the reaction mechanism are important. The activation parameters are determined using transition state theory. The pressure effects on the rate of solvolysis of the complex have also been studied in water-acetone mixture, yielding +0.3~+1.5ml/M of activation volumes at 1~2,000bar and 25℃. The activation volumes are dependent on the solvent compositions and pressures. The established solvent composition of isoactivation volume are about 7%(v/v) acetone in this mixture.
물-메타놀 混合 溶媒에서 Pb-Acetate의 熱力學的 性質에 關한 硏究
朴裕哲,吳相午,郭永右 慶北大學校 1973 論文集 Vol.17 No.-
Activity coefficients and solubility products of Pb-Acetate(10^(-1)∼10^(-4) mole/l) from aqueous solution to the solution of water-methanol mixtures are investigated by electromotive force measurements at 25℃. The effect of dielectric constant of various solvents on these physical constants have been considered on quantitative basis. We are suggested that the relationship between the meen activity coefficients(r^*_±) and solubility products(k^*_s) in a reference solvent and those in other solvents is represented as follows; logr^s_±=logr^*_±+n, where n is -logr^*_s/k^s_s. Futher, we estimated the difference of the free energy change of transfer of Pb-Acetate from aqueous solution to the solution of water-methanol mixtures and the ion-size parameter of Pb-Acetate. The values of the ion-size parameter varies from 3.8Å to 4.4Å. Considering the free energy change, it is possicle to assume that the salt in the solvent of higher dielectric constant may be dissolved by electrostatic force rather than non-electrostatic force.