• Title/Summary/Keyword: Acid-treated

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The Preventive Effect of Sodium Hyaluronic Acid Solution and Crosslinked Hyaluronic Acid Mixture on Postoperative Intraperitoneal Adhesion Formation in Rats (랫드에서 Sodium Hyaluronic Acid Solution과 가교처리한 Hyaluronic Acid Gel 혼합액의 복강내 유착 형성 방지 효과)

  • Song, Moon-Yong;Kang, Gyoo-Il;Hwang, Won-Koo;Choi, Wan-Gyu;Kim, Hyun-Hee;Heo, Ho-Jin;Jang, Hwan-Soo;Park, Hyun-Jeong;Jang, Kwang-Ho;Kwon, Young-Sam
    • Journal of Veterinary Clinics
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    • v.28 no.1
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    • pp.28-32
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    • 2011
  • This study was performed to evaluate the efficacy of 0.8% sodium hyaluronic acid solution and crosslinked hyaluronic acid mixture for the prevention of postoperative intraperitoneal adhesion in rats. Forty-five animals were divided into three groups ; 0.9% saline treated control group, 1% sodium carboxymethyl cellulose treated group (SCMC), and 0.8% sodium hyaluronic acid solution and crosslinked hyaluronic acid mixture treated group (SHCH). Adhesions were induced by suturing both the ileal serosa and peritoneum abrased until petechial bleeding occurred. Fourteen days later, adhesions were evaluated clinically and histopathologically. The mean tensile strength was significantly decreased in the SCMC and SHCH groups compared to the control group (p < 0.05), and the SHCH group had the lowest tensile strength. The distance of adhesion site was highest in the control group and significantly decreased in the SHCH group comparing control group (p < 0.05). The inflammatory cell infiltration, collagen hyperplasia and neovascularization of the SCMC and SHCH groups were significantly lower than the control group (p < 0.05). Therefore, it was concluded that the SHCH may be useful to prevent postoperative intraperitoneal adhesion in rats.

Physicochemical Components and Antioxidative Activity of Wheat Sprout Powder Prepared by the Enzyme and the Lactic Acid Bacteria (효소와 유산균 전처리 밀싹분말의 이화학적 성분 및 항산화 활성)

  • Zhu, RuiYu;Park, Young-Min;Oh, Jong Chul;Yu, Hyeon-Hee
    • The Korean Journal of Food And Nutrition
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    • v.33 no.5
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    • pp.459-472
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    • 2020
  • The purpose of this study was to evaluate the physicochemical components and antioxidant activities of wheat sprout powder prepared by the enzymatic hydrolysis and lactic acid bacteria treatment. The four kinds of pre-treatment were: no treatment (WP), treated with enzyme (WPE), treated with lactic acid bacteria (WPL), and treated with enzyme and lactic acid bacteria (WPEL) were applied to the wheat sprout powder. The WPEL had higher total free amino acid and essential amino acid content than the other samples. As for the volatile aroma of the wheat sprout powder, 29 types of compounds were identified in the WP and WPL, 28 types in the WPE, and 27 types in the WPEL, respectively. The total polyphenols and flavonoids contents, in the wheat sprout powder was enhanced with the enzyme and the lactic acid bacteria pre-treatment. The WPEL had highest DPPH radical scavenging activities. The overall acceptability was the highest at 6.24 points in the WPEL. Based on these observations, it was confirmed that the enzyme and lactic acid bacteria pre-treatment could improve the antioxidant activities and active component of the wheat sprout powder.

In vitro selection of lactic acid bacteria for probiotic use in pigs (양돈용 생균제 개발을 위한 유산균주 선발)

  • Byun, Jae-won;Kim, Gyung-tae;Bae, Hyoung-suk;Baek, Voung-jin;Lee, Wan-kyu
    • Korean Journal of Veterinary Research
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    • v.40 no.4
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    • pp.701-706
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    • 2000
  • This study was carried out to select the lactic acid bacteria(Lactobacillus, Streptococcus and Bifidobacterium) and yeast for probiotic use in pigs. Acid-tolerant 536 strains were isolated from the feces of 30 pigs. To select useful strains, the first screened strains were treated with strong acid solution(pH 2.5 to 3.0) for 3 hours and subsequentely treated with the anaerobic diluent solution containing 0.15% Oxgall for 3 hours. Among these strains, 151 strains showed strong tolerance to both acid and bile. Lactobacillus and Streptococcus tolerant to the acid and bile were treated with heat at $80^{\circ}C$ for 15 min, and at $70^{\circ}C$ for 5 min in Bifidobacterium and yeast. As a result of heat treatment, 38 strains were obtained as heat-tolerant strains. All of heat-tolerant strains were tested for antibiotic resistance against virginiamycin, sulfathiazole, aureomycin, neomycin, linsmycin, tiamulin and ASP250 which were used as feed additives for growth promotion in pigs. Finally, one strain each from Lactobacillus, Streptococcus, Bifidobacterium and yeast that showed resistance to acid, bile, heat and antibiotics was selected for probiotic use in pigs.

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Effect of Sulfur Powder and Citric Acid on Arsenic Phytoremediation Using Pteris multifida in Forest Soil (봉의 꼬리를 이용한 수림지 토양의 비소정화에 미치는 유황분말과 구연산의 영향)

  • Kwon, Hyuk Joon;Cho, Ju Sung;Lee, Cheol Hee
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.17 no.1
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    • pp.1-12
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    • 2014
  • This study was carried out not only to identify the optimum concentrations of sulfur powder and citric acid treated for improving arsenic absorption of Pteris multifuda known as hyperaccumulator of arsenic, but also to develop arsenic purification model in the forest soil. After applying sulfur powder (0, 30, 45, $60g{\cdot}m^{-2}$) and citric acid (0, 200, 400, $800g{\cdot}m^{-2}$) in the forest soil contaminated with heavy metals, P. multifuda was planted and cultivated for 16 weeks. And then the growth and arsenic contents of plants were analyzed. In the result of research, the growth of P. mulifuda, except plant width, cultivated in soils treated with sulfur powder and citric acid was relatively lower than control. The accumulated amount of arsenic in aerial parts of P. multifuda ($1822.2mg{\cdot}kg^{-1}$) cultivated in soils treated with $200g{\cdot}m^{-2}$ citric acid was improved 62.5% against the control. And the accumulated amount of arsenic per 1 $m^2$ ($20.1mg{\cdot}m^{-2}$) was the greatest in $200g{\cdot}m^{-2}$ citric acid treatment. Translocation rate (TR) was higher in all acid treatment compare to control, and was the best in $200g{\cdot}m^{-2}$ citric acid treatment (0.95) especially. It showed that the arsenic absorbed in underground parts was transferred fast to aerial parts. Therefore, $200g{\cdot}m^{-2}$ citric acid treatment in the soil is recommended for arsenic purification using P. multifuda.

Effects of Detomidine HCI on Blood Pressure and Acid-Base Balance in Goats (Detomidine이 한국재래산양의 혈압 및 산ㆍ염기 평형에 미치는 영향)

  • Jang Kwang-Ho;Nam Tchi-Chou;Kweon Oh-Kyeong
    • Journal of Veterinary Clinics
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    • v.6 no.1
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    • pp.199-208
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    • 1989
  • This study was carried out to Investigate the effects of detomidine and xylazine on physical sign, electrocardiogram, blood pressure, acid-base status and the antagonistic effect of yohimbine on detomidine in goats. Yohimbine was administered 10 minutes after detomidine injection. Maintenance time of sedation was remarkably decreased in yohimbine-treated group(59.5${\pm}$3.8min). compared with detomidine-treated group(99.8 ${\pm}$ 14.7min). Body temperature was slightly decreased, heart rate was markedly decreased in all experimental groups and respiratory rate increased in detomidine-treated group and decreased in zylazine-treated group. However they were recovered rapidly after yohimbine administration In electrocardiogram, there were no significant changes except T waves and RR intervals. T waves showed negative form and RR intervals were increased but they were recovered rapidly in yohimbine-treated group compared with detomidine-treated group. Blood pressure was decreased after detomidine administration but recovered faster in yohimbine-treated group than in detomidine alone group. Blood pH was increased in detomidine-treated and yohimbine-treated groups but unchanged in xylazine-treatd group. It is considered that the effects of detomidine are similar to those of xylaxine and yohimbine is effective antagonist to detomidine in goats.

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Fermentation Quality of Italian Ryegrass (Lolium multiflorum Lam.) Silages Treated with Encapsulated-glucose, Glucose, Sorbic Acid and Pre-fermented Juices

  • Shao, Tao;Zhanga, L.;Shimojo, M.;Masuda, Y.
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.11
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    • pp.1699-1704
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    • 2007
  • This experiment was carried out to evaluate the effects of adding encapsulated-glucose, glucose, sorbic acid or prefermented juice of epiphytic lactic acid bacteria (FJLB) on the fermentation quality and residual mono- and disaccharide composition of Italian ryegrass (Lolium multiflorum Lam) silages. The additive treatments were as follows: (1) control (no addition), (2) encapsulated-glucose addition at 0.5% for glucose, (3) glucose addition at 1%, (4) sorbic acid addition at 0.1%, (5) FJLB addition at a theoretical application rate of $2.67{\times}10^5$ CFU (colony forming unit) $g^{-1}$, on a fresh weight basis of Italian ryegrass. Although control and encapsulated-glucose treatments had higher contents of butyric acid (33.45, 21.50 g $kg^{-1}$ DM) and ammonia-N/Total nitrogen (114.91, 87.01 g $kg^{-1}$) as compared with the other treated silages, the fermentation in all silages was clearly dominated by lactic acid. This was well indicated by the low pH (4.38-3.59), and high lactic acid/acetic acid (4.39-22.97) and lactic acid content (46.85-121.76 g $kg^{-1}$ DM). Encapsulated-0.5% glucose and glucose addition increased lactic acid/acetic acid, and significantly (p<0.05) decreased ammonia-N/total nitrogen, and the contents of butyric acid and total volatile fatty acids (VFAs) as compared with the control. However, there were higher butyric acid and lower residual mono-and di-saccharides on the two treatments as compared with sorbic acid and FJLB addition, and their utilization efficiency of water soluble carbohydrates (WSC) was lower than that of both sorbic acid and FJLB additions. Sorbic acid addition showed the lowest content of ethanol and ammonia-N/total nitrogen, and the highest content of residual fructose and total mono-and disaccharides as well as the higher lactic acid/acetic acid value. Sorbic acid addition decreased the loss of mono-and disaccharides, and inhibited the activity of clostridial and other undesirable bacteria, and greatly increased the utilization efficiency of fermentable substrates by epiphytic LAB. FJLB addition had the lowest pH value and the highest lactic acid content among all additive treatments, with the most intensive lactic acid fermentation occurring in FJLB treated silage. This resulted in the faster accumulation of lactic acid and faster pH reduction. Sorbic acid and FJLB addition depressed clostridia or other undesirable bacterial fermentation which decreased the WSC loss and saved the fermentable substrate for lactic acid fermentation.

Alterations of Glutathione Peroxidase Patterns by Stressor Treatment in Rice Seedling Roots (스트레스 물질에 의한 벼 glutathione peroxidase 활성패턴 변화)

  • Kim, Yoon-Kyoung;Lee, Mi-Young
    • Applied Biological Chemistry
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    • v.48 no.1
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    • pp.53-59
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    • 2005
  • The effect of various stressors such as reductant ascorbic acid, signalling molecules (salicylic acid and methyl jasmonic acid), heavy metals $(NiCl_2,\;and\;MnSO_4)$ and NaCl on the glutathione peroxidase (GPX) activities and isoenzyme expression patterns were investigated in rice seedling roots. Total GPX activity increased according to the increase of ascorbic acid concentration. Prominent enhancement of GPX1 isozyme due to ascorbic acid contributed to the increase of total GPX activity. GPX showed different reactivity toward salicylic acid and methyl jasmonic acid. GPX activity increased at 0.1 mM salicylic acid, and then decreased thereafter. However, GPX increased gradually in a methyl jasmonic acid concentration-dependent manner, and 3 fold increase of GPX activity was found at 1 mM methyl jasmonic acid. Moreover, GPX1 isozyme increased according to the increase of salicylic acid, while GPX1 isozyme decreased according to the increase of methyl jasmonic acid. When metal ions were treated, GPX activity increased considerably according to the increase of $NiCl_2$ concentration, however, GPX activity increased about 2 fold at 0.5 mM $CuSO_4$ and then decreased. Enhancement of GPX1 isozyme contributed to the increase of total GPX activities in $NiCl_2-treated$ and $MnSO_4-treated$ rice seedlings. Total GPX activity increased 1.7 fold in response to 300 mM NaCl. Especially GPX2 isozyme showed gradual increase according to the increase of NaCl concentration.

Growth response of young raddish on the application of the mixed material of vermicast and humic acid in the green house (비닐하우스에서 분변토와 부식산의 혼합시용에 대한 열무의 생장반응)

  • Bae, Yoon-Hwan;Park, Kwang-Il;Kang, Gabdong
    • Journal of the Korea Organic Resources Recycling Association
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    • v.18 no.3
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    • pp.68-76
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    • 2010
  • In the green house, the effect of the mixed material of vermicast and humic acid on the growth of young raddish was investigated. 5, 10, 15, 30 or 50 kg(a.i.) of solid type humic acid was mixed with 300kg(d.w.) of vermicast/10a, each of which was applicated to the soil. And the conventional treatment(600kg of conventional organic fertilizer/10a) and untreatment plot were rendered for comparison. In all the experimental plots treated with vermicast, the number of leaves, leaf length, leaf biomass, root length, root diameter, root biomass of young raddish were higher than those in untreated plot. And in the experimental plots treated with the mixed materials of vermicast and humic acid, growth rate of young raddish was equal to or higher than that in the conventionally treated plot. Fresh biomass of leaves per leol' raddish in the plot treated with 300kg of vermicast + 5kg of humic acid was 1.79 times higher than that in the untreated plot and fresh biomass of root was 2.08 times higher, which was much more effective in its growth rate than that in any other treated plots. There were no prominent changes in soil physicochemical properties after the leol' raddish harvest from the soil treated with vermicast and humic acid, though.

UV-Cut Effects of Cotton Fabrics Treated with UV Absorbents (자외선 흡수제 처리에 의한 면직물의 자외선 차단 효과)

  • 지영숙;김상희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.18 no.5
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    • pp.622-627
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    • 1994
  • The purpose of this study is to investigate the adsorption rate, adsorption quantities and the UV-Cut effects of cotton fabrics treated with several UV absorbents. The result of this study were as follows: cotton fabric treated with 2,2'-dihydroxy-4- methoxy-benzophenone shows more efficient than ones treated with 4-aminobenzoic acid and 2·hydroxy-1, 4-naphthoquinone in UV absorption. This may be due to the absorption of UV light by formation of intra moleculaar hydrogen bond. The formation of hydrogen bonds between hydrogen atoms of two hydroxy groups and one oxygen atom of carboxyl group in 2, 2'-dihydroxy-4-methoxy-benzophenone would be easier than that of the other absorbents. The adsorption isotherms of 4-aminobenzoic acid and 2-hydroxy-1, 4-naphthoquinone were similar to Freundlich type, while that of 2, 2'-Dihydroxy-4-methoxy-benzophenone was Henry type. Cotton fabrics treated with Antifade MC-100 and W Cut I-2 were just alike in UV absorption, but Antifade 8001 was inferior to the others.

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Flame Retardancy of Cellulose Fabrics Treated with 3-(Hydroxyphenyl Phosphinyl) Propanoic Acid

  • Zhang, Lianping;Kim, Sam-Soo;Lee, Jae-Woong
    • Textile Coloration and Finishing
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    • v.20 no.5
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    • pp.1-6
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    • 2008
  • 3-(Hydroxyphenyl phosphinyl) propanoic acid (HPPA) has been one of the most commonly used durable flame retardant agents for polyethylene terephthalate (PET) for many years. We intended to explore the application of HPPA to cellulose fabrics as formaldehyde-free phosphorus based flame retardants (FRs) through green chemistry process. The flame retardancy of the flame-retardant treated cellulose fabrics were characterized by using inductively coupled plasma spectroscopy (ICP) and limiting oxygen index (LOI). Structural changes of the treated cellulose fabrics were carried out by thermogravimetric analysis (TGA) and Fourier transform infrared (FT-IR) spectroscopy. To enhance the flame retardancy of HPPA treated cellulose fibers, glycerol polyglycidyl ether (GPE), a crosslinking agent was employed. Both HPPA and GPE treated cotton fabric imparted an LOI value over 26.