• Journal of the Korea Organic Resources Recycling Association
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• v.4 no.2
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• pp.1-9
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• 1996

The possibility of using waste brine and cabbage waste from kimchi industry as raw materials for the production of yeast cell mass was investigated. Among four strains of osmotolerant yeast, Candida guilliermondii ATCC 6260 showed the best growth in the waste brine containing about 1.0g/L of reducing sugar and 7% to 12% of NaCl. The growth of C. guilliermondii in waste brine was affected slightly between the temperature range of $25^{\circ}C$ to $35^{\circ}C$ and the initial pH of 3 to 6. The NaCl concentration up to 9% was not inhibitory to the growth of C. guilliermondii and the addition of 10mM of ammonium salts or 5mM of potassium phosphate had no effect on the growth. The growth of yeast reduced BOD of the waste brine by 85% within 24hours. When C. guilliermondii was cultured in waste brine added with cabbage juice extracted from waste cabbage, the cell mass was increased significantly.

• Korean Journal of Organic Agriculture
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• v.18 no.1
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• pp.83-92
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• 2010

Organic farming is a type of agricultural practices based on naturally occurring processes excluding or strictly limiting the use of synthetic fertilizers, pesticides, and other chemicals. This study was conducted to investigate the influences of agro-based materials, effective microorganisms (EM), liquid silicate (LS), and organic liquid fertilizer (OLF) for water dropwort (Oenanthe stolonifera DC.) cultivation. Soil pH, soil organic matter, and plant available phosphorous decreased with LS application. Exchangeable Ca and Mg decreased with EM application, and electrical conductivity and exchangeable Ca and K decreased with OLF application. Most of essential nutrient contents in water dropwort were reduced with the treatments of LS, EM, and OLF as compared with those in control plot, except nitrogen and phosphorus. However, diseases and insect pests were almost not observed in the water dropwort in the agro-based material application plots, except cluster caterpillar (Spodoptera litura). Productivity of water dropwort tended to be reduced: its higher productivity in the OLF and EM+LS plots and lower in the LS and control plots.

• The Korean Journal of Food And Nutrition
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• v.16 no.4
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• pp.353-358
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• 2003

Low salt-fermented product of alaska pollack roe were prepared tentatively and also discussed the retarding effect of fermentation period by vacuum. The results were as follows. The moisture content, pH and salinity decreased slightly, but the contents of VBN and total amino acids increased gradually during fermentation regardless of ripening types. pH and salinity showed little difference with ripening types, but moisture content was a little lower and the contents of VBN was some higher in non vacuum than those in vacuum, whereas total amino acid contents were greater in vacuum. In addition, total viable cell count were similar to trend of gentle decrement after increment to some degree but were higher in non vacuum than those in vacuum. Judging from the results of physicochemical analysis, it was showed that fermentation delayed in vacuum therefore it was considered that vacuum fermentation can be effective on shelf-life extension of jeot-gal.

• Korean Journal of Food Science and Technology
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• v.29 no.5
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• pp.1071-1074
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• 1997

The Effect of $Ca^{++}$, $K^+$ and $Mg^{++}$ on salting of radish was investigated. Up to 0.2 M of $Ca^{++}$ and/or $K^+$, sodium chloride content of radish increased respectively, comparing with no addition of these ions. The salting effect of radish incereased in proportion to the concentration ($0{\sim}0.01\;M$) of $Ca^{++}$ and/or $K^+$ in the salting solution up to 0.2 M, while there was no influence of $Mg^{++}$. When $Mg^{++}$ and $Ca^{++}/Mg^{++}$ and $K^+$ were added to brine solution, $Ca^{++}$ or $K^+$ influenced the salting effect of radish and $Mg^{++}$ did not.

• Korean Journal of Microbiology
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• v.38 no.2
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• pp.113-118
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• 2002

Laboratory experiments were aimed to evaluate the effect of nitrate as a electron acceptor during the biological phosphorus uptake and to investigate the microbial community. Anaerobic-anoxic sequencing batch reactor (SBR) compared the removal behaviour to anaerobic-oxic SBR, both SBRs maintained lower effluent quality with 1.0 mgp/1. Anaerobic-anoxic SBR was able to remove additional 5.0 to 7.0 mg (P+N)/ι than other biological nutrient removal (BM) system. Therefore, it was proposed that the anaerobic-anoxic SBR was more effective at weak sewage. From the results of the maicrobial community analysis, it can be inferred that denitrifying bacteria and polyphosphate accumulating bacteria coexist in anaerobic-anoxic SBR during stable condition for removing the nitrogen and phosphorus. Particularly, it was suggested that the Zoogloea ramigera in the $\beta$-subclass of proteobacteria and the Alcaligenes defragrans of the Rhodocyclus group in the $\beta$-subclass of proteobacteria played a major role for removing the nitrogen and phosphorus as dPAOs (denitrifying phosphate accumulating organisms).

• Journal of the Korean Chemical Society
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• v.14 no.1
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• pp.51-59
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• 1970

The apparent molal volumes(${\phi}_v$) of the homologous salts $RNH_3Cl$, where R varies from methyl-($CH_{3^-}$) to n-butyl-(n-$C_4H_{9^-}$) in a series of methanol-water mixtures have been determined at 30$^{\circ}C$ by means of a float method to fifth decimal places down to 0.01 m. The values of ${\phi}_r$ extrapolated to infinite dilution give partial molal volumes $\bar{V}^{\circ}$which varies considerably in accordance with the solvent composition. that is, mole fraction of methanol. The experimental results are discussed in terms of the varying size and charge effect, hydrophobic nature of the solute species, and also the additivity relationship between successive homologous and the structure of the binary solvent. The results indicate that at 0.1 mole fraction methanol the enhanced structuredness of water cause a minimum in the partial molal volumes of cations $\bar{V}^{\circ}_+$, while at 0.4 mole fraction the solvent structure is such that the free volume is a minimum but the effect of electrostriction is a maximum.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3653-3659
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• 2015

This paper describes the reactive compatibilization of blends of a wholly aromatic thermotropic copolyester liquid crystalline polymer (TLCP) with random copolymers of ethylene and acrylic acid (EAA) and their salts. Blends were prepared by melt mixing in an intensive batch mixer, and the formation of a graft copolymer due to acidolysis between the TLCP and the acrylic acid group of the ionomer was evaluated. Chemical reaction was assessed by torque measurement during melt mixing and by thermal analysis and morphological observation. The Na-salt of the EAA ionomers was especially effective at promoting a grafting reaction. The extent of reaction depended not only on the cation, but also composition of the ionomer and reaction time. The product of the grafting reaction between the TLCP and a sodium-neutralized ionomer proved to be an effective compatibilizer for TLCP and EAA ionomers.

• Parasites, Hosts and Diseases
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• v.36 no.3
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• pp.203-206
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• 1998

Two-day-old commercial chicks were inoculated orally with 2 × 106 oocysts of Cwptosporinium bailevi and vaccinated with 103.5 EID50/head of a commercially available avian infectious bronchitis (IB) live virus vaccine at 4 and 14 days following inoculation. Chicks infected with C. baileyi were shown to have an immunosuppressive effect on IB virus. It is concluded that infection with the protozoon in early life may increase their susceptibility to IB.

• Journal of Digital Convergence
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• v.19 no.3
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• pp.287-293
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• 2021

Tablets were conventionally used to treat choline urticaria. Disadvantages of tablets included sleep inducing problems, accessibility and reduced dosage. To address this, hydrogel containing Cetirizine HCl was manufactured. The experimental method was to measure viscosity, gel fraction, degree of swelling, content evaluation, and permeability. Studies have shown that hydrogels containing Cetirizine HCl can be directly applied to occurrence area to improve Cholinergic urticaric with minimal side effects associated with the marketable tablets. This hydrogel includes other important substances including steroids which gives it an advantage when applied on the skin, improving its accessibility. In addition, it is expected that the drug manufacturing process will be able to proceed as this hydrogel is effective even when used alone.

• Journal of Dental Rehabilitation and Applied Science
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• v.37 no.4
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• pp.259-267
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• 2021

Peri-implantitis, in which inflammation caused by plaque and biofilm on the implant surface spreads to the hard tissue, can be treated by decontamination of the implant surface and reconstruction of the lost hard tissue through surgical methods. We have described the management of 3 peri-implantitis cases by decontamination of the implant surface using a round titanium brush and regenerative therapy. All cases showed clinical improvements, and no further radiographic bone loss was observed during a 2-year follow-up. This treatment method can be effective for clinical improvement and bone regeneration. However, a longer follow-up period is necessary to support these outcomes.