• Title/Summary/Keyword: salt well

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Modification of Tencel Fabric Treated with Chitosan( II ) - Change of Dyeing Properties - (키토산처리에 의한 텐셀 직물의 개질기능화(II) - 염색성의 변화 -)

  • 육은영;배현숙
    • Textile Coloration and Finishing
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    • v.14 no.3
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    • pp.1-10
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    • 2002
  • Tencel fabric cationized with chitosan can be effectively dyed with anionic dyes. To investigate the change of dyeing properties of cationized Tencel fabric, some experiments were performed under the several dyeing conditions with acid and reactive dyes. Whiteness index decreased with the increment of crosslinking agent concentration. The cationized Tencel fabric was dyed well by anionic dye such as acid dye, the dyeability of reactive dye was improved by addition of a little salt without alkali. The dye fixation on the cationized Tencel fabric was increased with chitosan concentration without electrolyte and alkali. The dyeability of Tencel treated with chitosan was better than controlled Tencel, especially under the acidic conditions. According to the number and the types of functional group of reactive dyes, dye affinity of the modified Tencel fabric varied and wash fastness of acid dye was better than reactive dye.

Modulation of Phosphoenolpyruvate Metabolism of Anaerobiospirillum succiniciproducens ATCC 29305

  • Yoo, Jin Young;J. Gregory Zeikus
    • Journal of Microbiology and Biotechnology
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    • v.6 no.1
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    • pp.43-49
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    • 1996
  • Modulation of the catabolic PEP-pathway of Anaerobiospirillum succiniciproducens was tried using some enzymatic inhibitors such as gases and chemicals in order to enhance succinic acid production. 10$\%$ CO increased the succinic acid/acetic acid (S/A) ratio but inhibited growth as well as production of succinic and acetic acid. Hydrogen gas also increased the S/A ratio and inhibited the synthesis of pyruvate: ferredoxin oxidoreductase when used in mixture with $CO_2$, Catabolic repression by acetic, lactic and formic acid was not recognized and other modulators such as glyoxylate, pyruvate derivatives, arsenic salt, phosphate and sulfate were shown not to be effective. Magesium carbonate was shown effective for repressing acetate production. Palmitic acid, myristic acid and phenylalanine did not affect acetate production but carprylic acid completely inhibited growth.

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Comparison of Estimation Methods for Primary Net Production at Herbaceous Coastal Marsh Vegetation (海安 鹽濕地 植生의 純生産性 推定法의 比較)

  • Ryu, Beung Tae;Joon-Ho Kim
    • The Korean Journal of Ecology
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    • v.8 no.3
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    • pp.133-140
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    • 1985
  • Aboveground net productions of four stands in the coastal salt marsh of Incheon were estimated with three different methods: first method was to measure peak live standing crop; second to measure both live and dead standing crops; thrid to measure live and dead standing crops and dead disappearance as well. Net productions estimated by the first method were lowest with a difference of 28~50% from those by the third method. Whereas estimates by the second method approximated considerably to those by the third method with a difference of 4~15%. The third method figured out the highest values and seemed to be most appropriate in estimating net production of herbaceous community. Form these results it is known that live standing crop, dead standing crop and dead disappearance respectively accounted for about 60, 30, 10% of net production estimated by the third method. Annual net productions estimated by the third method for Suaeda japonica-Salicornia herbacea, Artemisia scoparia-Limonium tetragonum, Calamagrostis epigeios, and Sonchus brachyotus-Setaria viridis stand were 650, 1, 080, 1, 409 and 1, 126 g.$m^{-2}.yr^{-1}$, respectively.

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Conversion of Citron (Citrus junos) Peel Oil by Enterobacter agglomerans

  • PARK , YEON-JIN;KIM, IN-CHEOL;BAEK, HYUNG-HEE;BANG, OK-KYUN;CHANG, HAE-CHOON
    • Journal of Microbiology and Biotechnology
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    • v.14 no.6
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    • pp.1275-1279
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    • 2004
  • Citron peel oil was extracted from citron (Citrus funas) fruit by steam distillation, and was used as starting material for microbial conversion to synthesize attractive flavor compounds by using Enterobacter agglomerans 6L. E. agglomerans was isolated from citron peel and was able to metabolize the citron peel oil and grew well ($A_{600}:\;3.0$) on the citron peel oil as the sole carbon source. Multiple terpene metabolites were produced by E. agglomerans 6L on M9 salt media with citron oil vapor. The identified bioconversion products from the citron peel oil included trans-2-decenal, octanol, $\delta$­valerolactone, $\gamma$-valerolactone, cryptone, hydroxycitronellol, cuminol, and $\gamma$-dodecalactone.

Mechanism of the Electrode Reduction of Cupferron in Neutral and Alkaline Media (중성 및 알카리성수용액에서 Cupferron 의 전극환원메카니즘)

  • Hwang, Kum-Sho;Hwang, Jung-Ui
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.11 no.1
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    • pp.32-55
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    • 1975
  • The ammonium salt of N-Nitrosophenylhydroxiamine, namely Cupferron, is a well-known analytical reagent which precipitates a great number of metal ions in acid medium. Various structures of electrode reduction for N-Nitrosophenylhydroxiamine have been suggested in acid and alkaline media by many researchers, but not in neutral medium. So the mechanism of electrode reaction of Cupferron was investigated by both chronopotentiometric and polarographic methods. It was estimated that the reduction of Cupferron occurs in a three-step mechanism through which a chemical step is interposed between two charge transfer, the ECE (charge transfer-chemical reaction-charge transfer) mechanism, over a range of neutral and alkaline media. The chemical reaction of the process was assumed to be acid-base catalyzed from the fact that kapp (over all rate constant) of chemical reaction is pH dependent.

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Clinical Safety of Chemotherapy for Elderly Cancer Patients Complicated with Hypertension

  • Qian, Ya-Dong;Xu, Xu;Wang, Lin;Huang, Xin-En
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.22
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    • pp.9875-9877
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    • 2014
  • Objective: To access the safety of chemotherapy for elderly cancer patients complicated with hypertension. Methods: Elderly cancer patients who were complicated with hypertension and treated by chemotherapy were recruited. All patients were treated by chemotherapy after an intervention on hypertension by psychotherapy, exercise guidance, salt regulation and nutrition support, therapy on hypertension, as well as prevention on hypertension associated complications. Results: In 68 eligible patients, two suspended chemotherapy because of adverse reactions and 4 because of disease progression. The remaining 62 patients completed chemotherapy smoothly based on good hypertension control. Conclusion: With effective control of blood pressure, chemotherapy for elderly cancer patients complicated with hypertension is generally safe.

Microbiological Characteristics and Physiological Functionality of New Records of Yeasts from Wild Flowers in Yokjido, Korea

  • Hyun, Se-Hee;Lee, Jong-Soo
    • Mycobiology
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    • v.42 no.2
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    • pp.198-202
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    • 2014
  • Two new yeast records, Cryptococcus adeliensis YJ19-2 and Cryptococcus uzbekistanensis YJ10-4 were screened from 60 yeasts strains that were isolated and identified from wild flowers in Yokjido, Gyeongsangnam-do, Korea. The morphological and cultural characteristics of the newly recorded yeasts and the physiological functionalities of the supernatants and cell-free extracts obtained from their cultures were investigated. The two newly recorded yeasts did not form ascospores and pseudomycelia. They also grew well in yeast extract-peptone-dextrose broth. C. uzbekistanensis YJ10-4 grew in a vitamin-free medium and was also tolerant to sugar and salt. Antihypertensive angiotensin I-converting enzyme inhibitory activity of the supernatant from C. adeliensis YJ19-2 was high (71.8%) and its cell-free extract also showed very high (81.2%) antidiabetic $\acute{a}$-glucosidase inhibitory activity.

Studies on Plant Succession of Sand Bars at the Nagdong River Estuary (낙동강 하구 사주 식생의 변이에 관한 연구 II. 식생형성과 종간상관)

  • 문병태
    • Journal of Plant Biology
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    • v.28 no.3
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    • pp.191-198
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    • 1985
  • The processes of vegetation development and interspecific association were studied as a part of a successional study in the sand bars at the Nadgdong River estuary in Korea. The major pioneer plant species in the sand bars were Salsola komarovi, Carex pumila and Cynodon dactylon. In embryonic sand bars, Namusitdeung and Galmaegideung, the processes of vegetation development after colonization by pioneer species were closely interdependent with the development of the sand dune. The vegetation types of embryonic sand bars were divided into two groups: sand dune plants, and annual and perennial forbs. Those of old sand bars, Baeghapdeung and Ogryudeung, were also divided into tow groups: sand dune plants, and salt marsh plants. The results of interspecific association coincided well with the actual distribution of plant communities in the sand bars. The degree of vegetation development in each sand bar agreed with the order of successional stage observed in this study area.

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Preparation of Ultrafine $SnO_2$ Powders by Spray-ICP Technique

  • Kim, Jung-Hwan;Kim, Young-Do;Shin, Kun-Chul;Park, Jong-Hyun
    • Proceedings of the Korea Association of Crystal Growth Conference
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    • 1998.06a
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    • pp.65-70
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    • 1998
  • The Spray-ICP technique uses the ICP(Inductively Coupled Plasma) of ultra-high temperature which is produced by r.f power. The ICP is well-kwown as a clean heat source for the preparation of pure ceramic particles because the ICP is a electrodeless-thermal plasma without contamination. In this study,{{{{ { SnO}_{2 } }}}} particles were sythesized from metal salt solution by Spray-ICP technique. The effects of concentration of solution, collecting location of powders were investicated. The prepared {{{{ { SnO}_{2 } }}}} particles from each concentration of solution had same crystalline phase(tetragonal {{{{ { SnO}_{2 } }}}}) a nd the mean size decreased in proportion to the increase of solution concentration. Each {{{{ { SnO}_{2 } }}}} p owders collector in reactor and electrostatic collector had same crystalline phase and morphologies. The mean size of {{{{ { SnO}_{2 } }}}} p articles prepared by Spray-ICP technique was below 30nm.

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Immunomodulatory activity of Salicornia herbacea L. Components

  • Im, Sun-A;Kim, Goo-Whan;Lee, Chong-Kil
    • Natural Product Sciences
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    • v.9 no.4
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    • pp.273-277
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    • 2003
  • Salicornia herbacea is an annual herb growing in salt marshes and on muddy seashores. Salicornia herbacea has been used as a fork medicine as well as a seasoned vegetable. In fork medicine, Salicornia herbacea has been used to treat a variety of diseases such as constipation, obesity, diabetes, asthma, arthritis and cancer. However, the biological mechanisms for these activities have not been characterized, nor the active components. The immunomodulatory activity of Salicornia herbacea components were studied in the present study. The components of Salicornia herbacea were prepared from the whole plant by passage through a fine screen, and then dialyzed against PBS overnight. Immunomodulatory activities of the Salicornia herbacea components were examined on a mouse macrophage cell line, RAW 264.7 cells. The Salicornia herbacea components were shown to stimulate cytokine production, nitric oxide release, and expression of surface molecules in a dose dependent manner. The Salicornia herbacea components also induced further differentiation of slightly adherent RAW 264.7 cell into strongly adherent macrophages. These results indicate that Salicornia herbacea contains immunomodulator(s) that induces activation of macrophages.