• Journal of Nutrition and Health
• /
• 제28권1호
• /
• pp.53-60
• /
• 1995

This study was performed to compare the contents of nutrients and taste components in Korean(King and Dabok) and imported(from Myanma) red pepper powders. Red pepper imported from Myanma was narrower and lighter and showed significantly higher contents of moisture and lipid. Lower amount of fructose and glucose shown in imported red pepper powder seemed related to lower sensory score in sweet taste. Capsaicin was contained much higher in imported red pepper powder and looked related to higher score in pungent tastes. Organic acids like oxalic acid, malonic acid, succinic acid, pyroglutamic acid were significantly lower in imported red pepper powder. Imported red pepper powder showed lower amount of $\beta$-carotene, capsanthin and color value(L, a, b) than Dabok and obtained lower sensory score in color.

• Preventive Nutrition and Food Science
• /
• 제14권3호
• /
• pp.220-225
• /
• 2009

In this study, the color value, water solubility, swelling power and sensory evaluation of Dioscorea batatas was examined with the addition of functional additives such as sugar alcohols and organic acids to investigate the browning inhibition and preference of these additives. Treatment with erythritol and citric acid were found to result in the highest hunter L-value, solubility and swelling power relative to the other functional additives. Therefore, erythritol and citric acid were selected as additives for Dioscorea batatas. The Dioscorea batatas containing the mixed additives (erythritol and citric acid) showed higher brightness, water solubility and swelling power than those containing only a single additive. In addition, the color and taste preference determined in the sensory evaluation had higher values when the mixed additives were used.

• Archives of Pharmacal Research
• /
• 제9권1호
• /
• pp.49-54
• /
• 1986

Effect of sodium taurodeoxycholate (TDC) infused intravenously on the pharmacokinetics of methylene blue (MB) was studied in the rat to investigate the role of ion-pair complexation in the body on drug elimination and disposition. Distribution volume (Vd) of MB was increased significantly (p< 0.05) by TDC infusion. Considering together with the fact that apparent partition coefficient (APC) of MB between phosphate buffer (pH 7.4) and n-octanol was increased markedly by TDC, the increase in Vd seemed to be the result of decreased polarity of MB by ion-pair formation with TDC. But total body clearance (CLt) and biliary excretion clearance (CLbil) of MB were not increased significantly by TDC.

• 한국물환경학회지
• /
• 제28권6호
• /
• pp.781-785
• /
• 2012

This study was carried out to treat the thermal elutriated acids of piggery wastewater using UASB process. The UASB reactor was operated at an organic loading rate (OLR) of $7.4\;kgCOD/m^3-day$ (6.5 ~ 9.0). During the start-up period, the low COD removal efficiency (20%) was caused by shock loading and instability in the reactor. It was mainly due to the high concentration amounts of ammonia nitrogen, which caused inhibitory and toxic effects to toward the anaerobic bacteria. In steady state, the UASB reactor showed a SCOD removal efficiency of 71% and a VS removal efficiency of 39%. The gas production and methane content were 1.3 L/day $(0.21\;m^3\;CH^4/kg$ COD removed) and 77%, respectively.

• 동아시아식생활학회지
• /
• 제7권3호
• /
• pp.325-329
• /
• 1997

본 세균의 성장과 수소생성을 위한 최적온도는 30-35$^{\circ}C$ 이었고 최적 pH는 7.0 부근이었다. 이 광합성 세균의 수소발생을 위한 전자전달계의 유기화합물은 포도당 또는 과당과 같은 당류와 malate 혹은 pyruvate 같은 유기산이 효율적임이 밝혀졌다. 이 결과는 Rhodobacter sphaeroides KS56이 전자전달계로서 여러종류의 환원성 탄수화물을 이용할 수 있음을 나타낸다.

• 대한화학회지
• /
• 제18권5호
• /
• pp.358-362
• /
• 1974

벤조산과 그 유도체들에 대한 음이온 교환분리를 여러 농도의 염화니켈-메탄올 용매 내에서 연구하였다. Amberlite CG-400, $Cl^-$ form에 대한 유기산들의 부피분배계수를 측정하고 이 분배계수로부터 제시된 적절한 농도의 $NiCl_2-MeOH$ 용액을 용리액으로 사용하여 몇 개의 혼합유기산을 정량적으로 분리하였다. 모든 유기산들의 농도는 자외선 분광광도계를 사용하여 정량하였다.

• 한국조리학회지
• /
• 제13권4호
• /
• pp.293-304
• /
• 2007

Using the high-pressure heating extraction process suitable for mass-production, crab stock(CS), red crab stock(RCS) and fish stock(FS) were manufactured and their quality and organic features were compared. The results are as follows. In mineral content, the content of essential amino acids, the content of delicious amino acids and preference, CS and RCS were rated higher than FS, and especially RCS had the most abundant essential amino acid content and had the highest rating in organic evaluation. Also, in terms of cost, RCS was more economical than regular CS, which is relatively expensive. Therefore, it is believed that replacing fish bones with RCS in making stock will be more cost-saving and have higher preference.

• 대한가정학회지
• /
• 제29권4호
• /
• pp.37-43
• /
• 1991

Oxidative stability of crude wheat germ oil (WGO) was determined by the active oxygen method(Rancimat, hrs at 98$^{\circ}C$). The induction time of crude WGO was 7.6hrs as compared to 23.7hrs of crude soybean oil. However, the induction time of WGO could be extended by 2-3 times with 300ppm of mixed tocopherols and 200ppm of organic acids. The antioxidant effect of organic acids increased in the order of L-ascorbic acid > tartaric acid > citric acid > malic acid. Especially, the induction time of WGO could be extended by ca. 38hrs with 500ppm of L-ascorbic acid. This antioxiative effect of 500ppm L-ascorbic acid with mixed tocopherol(100, 200, 300 or 500ppm). It seems that the synergistic effect of L-ascorbic acid was due to the high content of tocopherols(0.4%) in WGO.

• Bulletin of the Korean Chemical Society
• /
• 제1권2호
• /
• pp.49-54
• /
• 1980

Solutions of $Ni^{2+}$ and $Cd^{2+}$ were mixed with the solutions of various dibasic organic acids in the presence of cation exchange resin at room temperature. The distribution ratios of the metal ions between resin and solution were measured, using radioactive metal ions as tracer. From the observed variation of the distribution ratios with acid anion concentrations, it was concluded that $Ni^{2+}$ and $Cd^{2+}$ formed one-to-one complexes with succinate, malonate, o-phthalate and tartarate ions in aqueous, 20 % ethanol-water and 20 % acetone-water solutions. The results of the present study indicated that the relative stabilities of the complexes in solution increased generally in the order : $Ni^{2+}$ < $Cd^{2+}$ complexes. Succinate < malonate < o-phthalate < tartarate complexes. Aqueous < mixed solvent systems.

• 대한약학회:학술대회논문집
• /
• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
• /
• pp.81.2-82
• /
• 2003

Pyroligneous liquid is produced by process carbonizing Oak in 350 ∼ 400 . There are 200 kinds of constituents including minerals, vitamin B-complex and organic acids in it. The organic acids of them were presumed as active materials. It is traditionally used for treatment of stress related disorder, hepatic disease, immune disorder, G-I disorder and inflammatory disease. The aim of this study was to investigate anti-stress effects of Pyroligneous liquid(Pyroligneous liquid produced from Choa company). (omitted)