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Functional Activity of Water and Ethanol Extracts from Red Pepper (Capsicum annuum L.) Seeds (고추씨의 물과 에탄올 추출물의 생리활성)

  • Ku, Kyung-Hyung;Choi, Eun-Jeong;Park, Wan-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.10
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    • pp.1357-1362
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    • 2008
  • This study was carried out to investigate the extract yield, total polyphenolic compounds content, electron donating activity (EDA) and nitrite scavenging activity (NSA) of various red pepper (Capsicum annuum L.) seeds. The water and ethanol extracts showed yields in the ranges of $11.30{\sim}18.93%$ and $3.00{\sim}5.25%$, respectively. Ethanol extract yield was higher than water. In the total polyphenol content, water and ethanol extracts were in the range of $10.22{\pm}1.29{\sim}25.98{\pm}0.55mg/$ and $8.00{\pm}0.57{\sim}33.99{\pm}0.09mg/g$, respectively. Also, nitrite scavenging activities were $70.11{\pm}0.71{\sim}94.07{\pm}0.86%$ and $81.93{\pm}1.77{\sim}99.90{\pm}0.70%$ for water and ethanol extracts, respectively. In the electron donating activity, water extracts showed lower activity than ethanol extracts. The electron donating activity of water extracts was in the range of $0.04{\pm}0.07{\sim}14.31{\pm}0.06%$ while that of NSA of ethanol extracts was $35.48{\pm}0.23{\sim}73.83{\pm}0.04%$.

Kinetic Studies of Aspartase from Hafnia alvei byTemperature Dependence Activity Changes

  • Yun, Mun Yeong
    • Bulletin of the Korean Chemical Society
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    • v.21 no.4
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    • pp.379-382
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    • 2000
  • The temperature dependence of the kinetic parameters of the aspartase-catalyzed reaction has been examined in the direction of deamination. The pK1values at 37$^{\circ}C$, 25$^{\circ}C$, 16$^{\circ}C$ and 7$^{\circ}C$ were 6.2 $\pm$ 0.1, 6.3 $\pm$ 0.1, $6.7{\pm}0.3$ and 6.9 $\pm$ 0.3, respectively. On the other hand, the pK2 values at 37$^{\circ}C$,25$^{\circ}C$, 16$^{\circ}C$ and 7$^{\circ}C$ were 8.1 $\pm0.2$, 8.3 $\pm$ 0.2, 8.2 $\pm$ 0.3 and 8.0 $\pm$ 0.2,respectively. The enthalpy of ionization, DHion, calculated from the slope of pK1, are 6.0 $\pm$ 0.3 kcal/mol. These results validate the prediction that aspartase requires a histidine residue for a general base, and a cysteine (or having a carboxyl functional group) for a general acid.

한국 재래닭의 난형에 관한 연구

  • 상병돈;최철환;김학규;나재천;김상호;장병귀;서옥석;이상진
    • Proceedings of the Korea Society of Poultry Science Conference
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    • 2004.11a
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    • pp.99-100
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    • 2004
  • The observed means and standard divisions of the egg shape per generation in korean native chickens were as follow. The egg major axis, the egg miner axis and the egg shape index were 53.0$\pm$0.6~55.6$\pm$0.8 mm, 39.1$\pm$0.8~40.9$\pm$0.2 mm and 72.7$\pm$1.5~75.9$\pm$0.5 mm. The regression coefficients were -0.02~0.20 mm, 0.10~0.52 mm and 0.19~1.00 mm respectively.

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Seasonal Characteristics of Eggs and Adults of Luciola lateralis (Coleoptera: Lampyridae) Reared in the Laboratory (애반딧불이 실내사육과정에서 알과 성충의 계절적 특성)

  • Kim, Kang-Hyeok;Kim, Ha-Gon;Jeong, Jae-Hun
    • Korean journal of applied entomology
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    • v.53 no.3
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    • pp.225-229
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    • 2014
  • Seasonal changes in the firefly (Luciola lateralis) were studied in the laboratory to understand biological characteristics. Fecundity varies with seasons; these were measures at $162.0{\pm}8.67$ in the winter, $226.9{\pm}15.84$ in the spring and $166.6{\pm}9.3$ in the summer. Seasonal change also influenced oviposition period ($6.9{\pm}0.59$ days in the winter, $16.1{\pm}1.10$ days in the spring and $8.2{\pm}0.61$ days in the summer). The firefly oviposited every $2.5{\pm}0.22$ days in the winter, $3.9{\pm}0.25$ days in the spring, and $2.3{\pm}0.14$ days in the summer. Oviposition occurred 3 times in the winter, and 4 times in the spring and summer. The number of eggs per cycle was $52.2{\pm}4.56$ and $55.9{\pm}4.38$ in winter and spring, respectively, and was lower in the summer ($42.2{\pm}3.76$). Egg period significantly differed among seasons. The life span of the firefly was $17.9{\pm}0.14$ days in the winter, $19.7{\pm}0.25$ days in the spring and $16.5{\pm}0.43$ days in the summer.

Some biological notes on Eriophyes kuko KISHIDA (1) Its biology and life history (구기자 혹응애(Eriophyes kuko KISHIDA)에 관한 생태학적 지견 (1) 그의 생태 및 생활사)

  • Kim C. H.
    • Korean journal of applied entomology
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    • v.5_6
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    • pp.59-63
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    • 1968
  • This Paper deals With the biology and the life Cycle of Eriophyes kuko KISHIDA. 1. The host of Eriophyes kuko KISHIDA is Lycium chinense MILL (Boxthorn), Solanum nigrum LINNE(Morel) and Capacium annum LINNE(Red pepper) etc. 2. Eriophyes kuko KISHIDA is migrated and propagated by physical carriers. The direction of the wind has a great influence upon migration and dispersal. 3. The number of e99s deposited by a adult female is $28.5\pm0.449$ egg period is $7.0\pm0.447$ and larval period is $4.33\pm0.667$ days respectively. 4. The size of gall diameter on the leaf of Lycium Chinense MILL after boring in each date by Eriophyes kuke KISHIDA is as follows, 1st day after boring is $290.5\pm0.3415\mu$ End 25st day after boring is $3260.5\pm0.5157\mu$ in average. 5. Adult periods are from 25 to 30 days and the egg laying period is 6 days. 6. Eriophyes kuko KISHIDA has 6 to 7 generations in a year, and hibernate they over winter in the gall as an adult. The first adult appears in late May.

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Radiation dose Assesment according to the Adaptive Statistical Iterative Reconstruction Technique of Cardiac Computed Tomography(CT) (심장 CT 검사시 ASIR 적용에 따른 선량 평가)

  • Jang, Hyun-Cheol;Kim, Hyun-Ju;Cho, Jae-Hwan
    • The Journal of the Korea Contents Association
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    • v.11 no.5
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    • pp.252-259
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    • 2011
  • To identify the effects of the application of the adaptive statistical iterative reconstruction (ASIR) technique in combination with the other two factors of body mass Index (BMI) and tube potential on radiation dose in cardiac CT. The patient receiving operation the cardiac CT examination was divided four groups into according to kVp.[A group(n=20), Non-ASIR, BMI < 25, 100 kVp; B group(n=20), Non-ASIR, BMI > 25, 120 kVp; C group(n=20), 40% ASIR BMI < 25, 100 kVp; D group(n=20), 40% ASIR, BMI > 25, 120 kVp] After setting up the region of interest in the main artery central part and right coronary artery and left anterior descending artery, the CT number was measured and an average and standard deviation were analyzed. There were A group and the difference which the image noise notes statistically between C. And A group was high so that the noise could note than C group (group A, 494 ${\pm}$ 32 HU; group C, 482 ${\pm}$ 48 HU: P<0.05) In addition, there were B group and the difference noted statistically between D. And B group was high so that the noise could note than D group (group B, 510 ${\pm}$ 45 HU; group D, 480 ${\pm}$ 82 HU: P<0.05). In the qualitative analysis of an image, there was no difference (p>0.05) which a group, B group, C group, and D as to average, A group 4.13${\pm}$0.2, B group 4.18${\pm}$0.1, and C group 4.1${\pm}$0.2 and D group note statistically altogether with 4.15${\pm}$0.1 as a result of making the clinical evaluation according to the coronary artery segments. And the inappropriate image was shown to the diagnosis in all groups. As to the radiation dose, a group 8.6${\pm}$0.9 and B group 14.9${\pm}$0.4 and C group 5.8${\pm}$0.5 and D group are 10.1${\pm}$0.6 mSv.

A Study of Antimicrobial Effect of Zostera marina Extracts (잘피(Zostera marina) 추출물의 항균효과에 대한 연구)

  • Lee, So-Yeon;Kim, Bo-Ae;Shin, Dong-Chul;Park, Kwan-Soon;Yang, Jae-Chan
    • Journal of the Korean Applied Science and Technology
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    • v.33 no.2
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    • pp.225-231
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    • 2016
  • This study was conducted to investigate the antimicrobial activities of ethanol extracts (70%, v/v) from Whole, Root and Leaf stem part of dried Zostera marina. In order to use Zostera marina extract as a basic material of cosmetic component. The extracts of Zostera marina conducted an antimicrobial activity against Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Pseudomonas aeruginosa, Candida albicans, Propionibacterium acnes by disc diffusion method and measure clear zone. As a result, clear zone(mm) of Staphylococcus epidermidis was confirmed at $13.00{\pm}0.50mm$ and Staphylococcus aureus, Propionibacterium acnes, Pseudomonas aeruginosa have measured $11.75{\pm}0.25mm$, $12.00{\pm}0.50mm$, $12.25{\pm}0.25mm$ from Root extract part of Zostera marina. A Zostera marina extract is expectied to have antimicrobial effects.

Psychophysiological Characteristics of Chronic Pain Patients Measured by Biofeedback System (바이오피드백을 이용하여 측정한 만성통증 환자의 정신생리적 특징)

  • Lee, Jin-Seong;Kang, Do-Hyung;An, Hyun-Ju;Yoon, Dae-Hyun;Jeong, Do-Un
    • Sleep Medicine and Psychophysiology
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    • v.16 no.2
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    • pp.79-84
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    • 2009
  • Objectives: Chronic pain is one of the most common experiences of humans and a typical psychophysiological disorder. The aim of this study was to measure the psychophysiological responses in chronic pain patients using a biofeedback system, and to compare them with the results from normal healthy subjects. Methods: Forty two patients with chronic pain (17 males and 25 females, average age $44.67{\pm}11.10$ years) and 42 normal healthy controls (17 males and 25 females, average age $45.17{\pm}10.46$ years) participated in this study. Electromyography (EMG), skin conductance (SC), and skin temperature (ST) were recorded using biofeedback system during the 3 phases (baseline, stress, and recovery) of stress reactivity test, and average values of them were calculated. Difference of values between two groups in each corresponding phase was analyzed with independent t-test, and change of values across phases of stress reactivity test was analyzed with paired t-test (all two-tailed, p<0.05). Results: Compared to normal controls, chronic pain patients had higher value of EMG (baseline: $8.10{\pm}5.97{\mu}V$ vs $4.72{\pm}1.52{\mu}V$, t=-3.56, p<0.01; stress: $11.25{\pm}6.89{\mu}V$ vs $8.49{\pm}4.78{\mu}V$, t=-2.13, p<0.05; recovery: $7.12{\pm}3.77{\mu}V$ vs $4.78{\pm}1.59{\mu}V$, t=-3.70, p<0.01) and SC (baseline: $1.06{\pm}1.0{\mu}S$ vs $0.42{\pm}0.29{\mu}S$, t=-4.0. p<0.01; stress: $1.87{\pm}2.05{\mu}S$ vs $1.03{\pm}0.86{\mu}S$, t=-2.47, p<0.05; recovery: $1.74{\pm}1.77{\mu}S$ vs $0.64{\pm}0.59{\mu}S$, t=-3.8, p<0.01) in all the 3 phases. But, skin temperature comparison did not reveal significant differences in all the 3 phases between two groups. Conclusion: Psychophysiological responses of chronic pain patients in stress reactivity test were different from those of normal healthy controls. These results suggest that sympathetic nervous system is more activated in chronic pain patients.

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A Study on a Changed Power of Tear lens at Spherical RGP lens Fitting (구면 RGP렌즈 Fitting시 누액렌즈 굴절력 변화에 대한 연구)

  • Park, Seong-Jong;Joo, Seok-Hee;Jung, Ju-Hyun
    • Journal of Korean Ophthalmic Optics Society
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    • v.9 no.2
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    • pp.455-462
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    • 2004
  • In this paper, we measured and analysised the power change of tear lens for 85 patients - 170 myopia eyes - who are fitted using RGP lens, considering the BGR of RGP lens, the corneal astigmatism power, and corneal curvature. We got the following results from these experiments; 1. When the BCR of RGP lens changes, the diopters of tear lens of "on-k", 0.05Pt, 01.0Ft, 0.05St, and 0.10St are -0.25D, -0.46D, -0.63D, +0.07D, and +0.26D, respectively. 2. When the corneal astigmatism power changes, the diopters of tear lens of group below 0.75D, group of 1.00D~1.25D, group of 1.50D~1.75D, and group over 2.00D in "on-k" state, are -0.25D, -0.18D, -0.09D, and -0.39D, respectively. 3. When the corneal astigmatism power changes and the BCR of test lens is changed by 0.05mm step, the change values of tear lens diopter for 0.05St and 0.05Ft approximate to ${\pm}0.25D$, while these for 0.10St and 0.10Ft don't approximate to the value below ${\pm}0.25D$.[are irregular value below ${\pm}0.25D$.] 4. When the corneal curvature and the HCR of RGP lens change, the diopters of tear lens of group below 7.50mm, group of 7.55~7.80mm, group of 7.85~8.20mm, and group over 8.25mm in "on-k" state, are -0.40D, -0.11D, -0.20D, and -0.19D, respectively. 5. When the BCR of test lens is changed by 0.05mm step and the corneal curvature increases, the change values of tear lens diopter decrease, while these over 8.25mm are mean value ${\pm}0.17D$ and the value below ${\pm}0.25D$.

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Physicochemical Characteristics of Traditional Fermented Soybean Products Manufactured in Folk Villages of Sunchang Region (순창 고추장민속마을에서 생산한 전통 장류의 이화학적 특성)

  • Kim, Jong-Wook;Kim, Yong-Suk;Jeong, Pyeong-Hwa;Kim, Hyung-Eun;Shin, Dong-Hwa
    • Journal of Food Hygiene and Safety
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    • v.21 no.4
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    • pp.223-230
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    • 2006
  • For standardization of quality of traditional fermented soybean products manufactured in Folk Villages of Sunchang Region, the physicochemical characteristics of 28 Kochujang, 28 Doenjang, and 18 Chunggukjang were compared. Moisture contents of Kochujang, Doenjang, and Chunggukjang were $46.9{\pm}3.6,\;60.6{\pm}1.9,\;and\;57.0{\pm}3.10%$, respectively. On the basis of average moisture contents, crude protein, crude fat, and crude ash contents were calculated to $6.2{\pm}0.7,\;2.0{\pm}0.5,\;and\;8.2{\pm}1.1%$ in Kochujang, $13.2{\pm}1.0,\;7.1{\pm}0.6,\;and\;15.2{\pm}1.5%$ in Doenjang, and $18.9{\pm}1.2,\;6.1{\pm}1.4,\;and\;5.1{\pm}1.7%$ in Chunggukjang, respectively. Reducing sugar, salinity, and water activities in Kochujang were $19.25{\pm}4.1%,\;7.3{\pm}1.1%,\;and\;0.790{\pm}0.003$, in Doenjang were $2.38{\pm}0.89%,\;14.2{\pm}1.4%,\;and\;0.835{\pm}0.020$, and in Chunggukjang were $0.51{\pm}0.24%,\;4.2{\pm}1.6%,\;and\;0.962{\pm}0.028$, respectively. Amino-type nitrogen contents, which affects delicate flavors of fermented soybean products, of Kochujang, Doenjang, and Chunggukjang were $114.03{\pm}19.04,\;734.32{\pm}147.70,\;and\;600{\pm}150mg%$, respectively. Lightness (l), redness (a), and yellowness (b) values in color of Kochujang were $14.49{\pm}1.44,\;15.45{\pm}1.77,\;and\;8.34{\pm}1.02$, respectively, and the redness was lower than that of other ones. Those of Doenjang were $26.69{\pm}4.33,\;7.25{\pm}1.03,\;and\;12.02{\pm}1.82$, respectively, and those of Chunggukjang were $35.62{\pm}2.05,\;6.31{\pm}0.37,\;and\;13.50{\pm}0.78$, respectively. These results indicate that the salt concentration and quality of traditional fermented soybean products manufactured in Folk Villages of Sunchang region must be lowered and standardized, respectively.