• Korean Journal of Food Science and Technology
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• v.37 no.6
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• pp.861-865
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• 2005

2,4-Dinitrophenylhydrazine (DHP), indophenol, and HPLC methods, which are generally used to analyze vitamin C, were evaluated by comparing changes in vitamin C contents in various samples kept at 10 and $20^{\circ}C$. Amount of total ascorbic acid (TAA) in yoghurt A kept at $10^{\circ}C$, as measured by DNP method, decreased from 26.7mg/100mL for early period to 22.8mg/100mL for final period of storage, whereas, on 3rd and 10th storage days, increased contrary to general results. Using indophenol, TAA measured at 28.6 and 9.5mg/100mL, and 30.5 and 14.6mg/100mL using HPLC far early and final periods, respectively. With indophenol and HPLC, TAA amount showed steady tendency to decrease. In conclusion, HPLC is the most suitable method to analyze vitamin C content, and indophenol method can be also used during early storage stage.

• Smart Media Journal
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• v.12 no.2
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• pp.91-102
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• 2023

The Energy Management System (EMS) communicates with power plants and substations, monitors the substations and plant operational status of the transmission and substation system for stability, continuity, real-time, and economy of power supply, and controls power plants and substations. Currently, the power exchange EMS communicates with power plants and substations based on the serial communication-based Distributed Network Protocol (DNP) 3.0 protocol. However, problems such as the difficulty of supply and demand of serial communication equipment and the lack of installation space for serial ports and modems are raised due to the continuous increase in new facilities to perform communication, including renewable power generation facilities. Therefore, this paper presents a TCP/IP-based communication method instead of the existing serial communication method of the power exchange EMS, and presents a security risk analysis that may occur due to changes in the communication method and a countermeasure to the security risk.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.14 no.1
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• pp.117-128
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• 2001

Gamiseunggal-tang(G-tang) has long been used for the treatment of acute and chronic allergic diseases(especially, urticaria) in oriental medicine. But, It's mechanism of action is not well investigated. Anal therapy is another way of taking medicine, which is not used in common situation but available for the treatment of colon and anal diseases. It is also used in GI tract diseases, Gynecological diseases, and pediatric diseases and so on. It is especially benefitable for patients who are in such situations as coma, severe vomiting, and swallowing difficulty. In this study, the author investigated the effects of G-tang by anal therapy on acute and chronic allergic reactions in murine model. The results obtained are as follows: 1. G-tang(0.01, 0.1 g/kg) inhibited the compound 48/80-induced ear swelling response in mice. Inhibitory effects of G-tang was significant (P<0.05) at the dose of 0.01 g/kg. 2. G-tang(0.001-0.1 g/kg) inhibited the cutaneous allergic reaction activated by anti-dinitrophenyl(DNP) IgE in rats. Especially, G-tang 0.01, 0.1 g/kg inhibited the cutaneous allergic reaction significantly. 3. G-tang(0.01-1 g/L) dose-dependently inhibited the compound 48/80-induced histamine release from the peritoneal mast cells. 4. G-tang(0.001-0.1 g/L) had a inhibitory effect on anti-DNP IgE-induced tumor necrosis factor-${\alpha}$ production. Above results indicate that anal therapy of G-tang may be beneficial in the treatment of acute and chronic allergic diseases.

• Analytical Science and Technology
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• v.9 no.2
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• pp.134-138
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• 1996

Cadmium was transported through the special carrier system into the cells of cotyledons, hypocotyls, and roots spring radish young plants. The transport of cadmium was inhibited by metabolic inhibitor, like DNP. The $K_m$ values for cadmium were 0.7 ppm for cotyledons, 1.72 ppm for hypocotyls, and 0.3 ppm for roots, and $V_{max}$ for cadmium was $40ppm{\cdot}h^{-1}{\cdot}g{\cdot}fresh\;weight^{-1}$ for cotyledons, $313ppm{\cdot}h^{-1}{\cdot}g{\cdot}fresh\;weight^{-1}$ for hypocotyls, and $606ppm{\cdot}h^{-1}{\cdot}g{\cdot}fresh\;weight^{-1}$ for roots. Cadmium cannot prove to be inducer for proline accumulation. Therefore, proline accumulation cannot be used as a marker to test the level of heavy metal pollution.

• Journal of Microbiology and Biotechnology
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• v.28 no.10
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• pp.1626-1634
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• 2018

Ginseng (the root of Panax ginseng Meyer) fermented by Lactobacillus plantarum has been found to attenuate allergic responses in in vitro and in vivo experimental models. Ginseng has been reported to also possess various biological functions including anti-inflammatory activity. The present study was aimed at comparing the anti-allergic effect of ginseng and fermented ginseng extracts on IgE-mediated passive cutaneous anaphylaxis in vitro in a murine cell line and in vivo in mice. Fermented ginseng extract (FPG) showed higher inhibitory effect against in vitro and in vivo allergic responses when compared with ginseng extract (PG). The secretion of ${\beta}$-hexosaminidase and interleukin (IL)-4 from the IgE-DNP-stimulated RBH-2H3 mast cells were significantly (p < 0.05) inhibited by FPG treatment, and this effect was concentration-dependent. Further, MKK4 activation and subsequent JNK phosphorylation were attenuated by FPG treatment. The inhibitory effect of FPG on the in vitro allergic response was verified in vivo against IgE-DNP-induced passive cutaneous anaphylaxis in a mouse model. These data indicated that the fermentation of ginseng with L. plantarum enhanced its anti-allergic effects both in vitro and in vivo. We predict that compositional changes in the ginsenosides caused by the fermentation may contribute to the change in the anti-allergic effects of ginseng. The results of our study highlight the potential of the use of FPG as a potential anti-allergic agent.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.15 no.1
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• pp.1-30
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• 2002

This experimental study was done to research effects of a number of extract on the anti-allergic effect. The results were obtained as follows: 1. In effect of herb-extract on compound $\frac{48}{80}$-mediated histamine release from Evans blue skin assay, Isatis Japonica Miquel, Dictamnus dasycarpus Turcz, Spirodela polyrhiza, Cimicifuga heracleifolia, Bupleurum chinense, Magnolia liliflora, Forsythia koreana, Aster tataricus L., Xanthium strumarium L.(MtOH), Trichosanthes kirilowii, Phellodendron amurense Rupr, Schizonepeta tenuifolia Var, Betula platyphylla show considerable visible anti-allergic effect. In the result of quantification of histamine induced compound $\frac{48}{80}$, Spirodela polyrhiza, Isatis Japonica Miquel, Trichosanthes kirilowii, Bupleurum chinense, Forsythia koreana inhibit histamine release effectively. 2. In effect of Herb-Extract on compound $\frac{48}{80}$-mediated histamine release from RPMC, Spirodcla polyrhiza, Cimicifuga heracleifolia inhibit histamine release effectively. 3. In effect of Herb-Extract on anti-DNP IgE-mediated histamine release from Evansblue skin assay. Spirodela polyrhiza, Cimicifuga heracleifolia(0.1mg/ml). Forsythia koreana, Aster tataricus L., Xanthium strumarium L.(0.1mg/ml), Trichosanthes kirilowii(0.1mg/ml) show considerable visible anti-allergic effect. In the result of quantification of histamine induced anti-DNP IgE, Spiradela polyrhiza, Isatis Japonica Miquel, Trichosanthes kirilowii, Bupleurum chinense, Forsythia koreana inhibit histamine release effectively 4. In the result of genetic manifestative inhibition about the human mast cell-1(HMC-1), Cimicifuga heracleifolia has considerable effect in IL-4 in IL-5, and Tussilage farfara L. has in IL-4. According to the above results, it is suggested that several Herb-Extract have anti-allergic effect.

• The Journal of Korean Medicine
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• v.19 no.2
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• pp.439-449
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• 1998

Anal Therapy is another way of taking medicine. It is a traditional pathway but not available in common situation. Nevertheless, It has many benifect and usefulness, it has not treated so much. Through Anal Therapy, the valid compound of Herb med can be reach to the desination in theory of the organism and loca1 medical action. The former is called Jung-Chei Theory(整體論), which is the one of the most important basements in building traditional Korean medicine. As there are many kinds of Anal therapy, this study use reservation type. Sosihotang(SSHT) is one of the well-known korean medicines for a long time. It is used for the treatment of such dieases as infectious diseases, hepatic diseases and gastroenteritis and so on. In this study, the author investigated the effect of an aqueous extract of SSHT by Anal therapy(Reservative Enema) in anaphylactic shock. The following results were obtained 1. SSHT inhibited anaphylactic shock 100% with a dose of 1.0 g/kg 1 hr before intraperitoneal injection of compound 48/80. SSHT significantly reduced serum histamine contents induced by compound 48/80. 2. SSHT (0.1 g/kg) also inhibited to 30.9% (P<0.05)) local cutaneous anaphylactic reaction activated by anti-dinitrophenyl (DNP) IgE. 3. The validity rate of reservative enema is as much as oral pathway. 4. In addition, SSHT dose-dependently inhibited the histamine release from the peritoneal mast cells by compound 48/80 or anti-DNP IgE. These results provide evidence that Anal Therapy(Reservative enema) of SSHT may be beneficial in the treatment of systemic and local anaphylactic reaction. Moreover, I wish another much sincere study of Anal Therapy (Reservative enema) would be obtained.

• Journal of the Korean Society of Food Science and Nutrition
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• v.18 no.3
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• pp.348-355
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• 1989

This experiment was conducted to investigate the characteristics of alkaline protease from Aspergillus fumigatus which was isolated from soil as a superior strain for the production of the alkaline protease. The optimum temperature for enzyme activity was $50^{\circ}C$ and optimum pH was 9.0. The enzyme was stable at pH 8.0 to 10.0 and thermal inactivation was shown $30^{\circ}C$. The activity of the enzyme was increased by the addition of $Mn^{++},\;Cu^{++},\;Ba^{++},\;Mg^{++},\;$wheras it was inhibitied by $K^+,\;Fe^{+++},\;Ag^+,\;Pb^{++},\;Na^+,\;Ca^{++},\;Hg^+,\;Zn^{++}$. EDTA. 2, 4-DNP, ${\varepsilon}-amino$ caproic acid did not show inhibitory effect on the proteolytic activity of alkaline protease but P-chloromercuribenzoic acid inhibited the enzyme activity, indicating that reactive sulfhydryl group is required for the enzymatic activity. The reaction of this enzyme followed typical Michael-Menten Kinetics with the Km value of $8.33{\times}10^{-4}mole/{\ell}$ with the Vmax of $47.62{\mu}g/min$. This enzyme had stronger proteolytic activity than trypsin on substrate such as casin and hemoglibin.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.19 no.3 s.31
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• pp.13-21
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• 2006

Object : We investigated the effect of Gamiokyaek-tang (GOYT) on immediate type hypersensitivity. Methods : We investigated anti-dinitrophenyl (DNP) IgE-mediated passive cutaneous anaphylaxis and acetic acid-induced vascular permeability in rodents. Also perfonned MTT assay and b-hexosaminidase activity is measured in RBL-2H3. Results : GOYT inhibited passive cutaneous anaphylaxis and acetic acid-induced vascular permeability by oral administration. All the concentrations of GOYT from 0.1 to 5 mg/ml didn't have an effect on cell viability and cytotoxicity. b-hexosaminidase release in RBL-2H3 was significantly reduced by 2 and 5 mg/ml of GOYT. Conclusion : These results indicate that GOYT have inhibition effects on immediate type hypersensitivity .

• Journal of Nutrition and Health
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• v.51 no.3
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• pp.208-214
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• 2018

Purpose: Platycodon grandiflorum (a domestic diploid variety, DV-PG) has been used as a food and component of various traditional oriental medicines. Although DV-PG is known to have an anti-allergic effect, little is known about the beneficial health effects of the tetraploid 'Etteum' variety in the Platycodon grandiflorum (TV-PG), which is a recently developed variety. In this study, we investigated the effect of TV-PG on the rat basophilic leukemia mast cell (RBL-2H3)-mediated allergic response. Methods: To examine the effects of TV-PG on the allergic response, RBL-2H3 cells were sensitized with dinitropheny (DNP)-immunoglobin E, treated with various concentrations of TV-PG, and challenged with DNP-human serum albumin. We estimated cell granulation by measuring the release of ${\beta}$-hexosaminidase and production of inflammatory mediators by ELISA. Results: TV-PG had no effect on the proliferation or cytotoxicity of RBL-2H3 cells within the concentration range of 0 to $200{\mu}g/mL$. TV-PG inhibited degranulation of RBL-2H3 cells by antigen stimulation in a dose-dependent manner. TV-PG also suppressed the production of inflammatory cytokines and mediators such as interleukin-4, tumor necrosis $factor-{\alpha}$, prostagladin E2, and leukotriene B4 in RBL-2H3 cells by antigen stimulation. Conclusion: These results indicate that TV-PG exhibits anti-allergic activity via inhibition of degranulation as well as suppression of inflammatory mediators and cytokine release. These findings suggest that TV-PG may have potential as a preventive and therapeutic agent for the treatment of various allergic diseases.