Showing 321 - 340 results of 1,824 for search '"propionic acid"', query time: 0.62s Refine Results
  1. 321

    EPURAREA EFLUENTULUI TEXTIL PRIN APILCAREA METODELOR DE ELECTROFLOTARE, OXIDARE CATALITICĂ ŞI DE ADSORBŢIE PE CĂRBUNE ACTIV by Gheorghe DUCA, Vera MATVEEVICI, Maria GONŢA, Larisa MOCANU

    Published 2020-01-01
    Subjects: “…chemical oxygen demand removal, electro flotation, catalytic oxidation, adsorption process, lingo¬sulfonic acid sodium salt, 2,2-bis (hydroxymethyl) propionic acid, diethylene glycol, formaldehyde, poly (dialyldi¬methyl-ammonium chloride).…”
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  5. 325

    Recovery of fatty acids by immobilized solvent extraction / by 333347 Lau, Isaac, Hayward, Gordon

    “…This was due to the reversible reaction between TOPO and propionic acid in the membrane. The flux of propionic acid was measured as a function of time for new membranes and for membranes removed from storage. …”
  6. 326

    Water-Soluble Organic Germanium Promotes Both Cornified Cell Envelope Formation and Ceramide Synthesis in Cultured Keratinocytes by Megumi Kato, Haifeng Zeng, Lihao Gu, Kazuhisa Maeda

    Published 2017-09-01
    “…The activity and mRNA expression of transglutaminase were increased when 3-(trihydroxygermyl) propionic acid was added to the cell cultures. The formation of cornified cell envelopes in cultured human epidermal keratinocytes was increased in the presence of 3-(trihydroxygermyl) propionic acid. …”
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  7. 327

    Fecal Short-Chain Fatty Acids as Potential Biomarkers for Attention-Deficit/Hyperactivity Disorder by N. Boonchooduang, O. Louthrenoo, N. Likhitweerawong, C. Thonusin, N. Chattipakorn, S. C. Chattipakorn

    Published 2023-03-01
    “…Interestingly, acetic acid and propionic acid levels were negatively correlated with ADHD symptoms ( Table 1). …”
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  8. 328

    Preservation effect of organic acids on microbial, chemical and organoleptic parameters of chicken meat by A. Hajipour, M. Noroozi, R. Zavoshy, A. Mohammadpoorasl

    Published 2015-06-01
    “…Findings: The bacterial growth and shelf life were significantly different between the controls and the samples treated with acetic acid and propionic acid. The samples treated with citric acid were significantly different from the samples treated with acetic acid and propionic acid in terms of bacterial growth and shelf life. …”
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  9. 329

    Enzymatic Kinetics of Solvent-free Esterification with Bio-imprinted Lipase by M. Matsumoto, Y. Hasegawa

    Published 2020-01-01
    “…We found no inhibition of isoamyl alcohol on the solvent-free enzymatic esterification, and obtained a large imprinting effect under a largely excessive amount of isoamyl alcohol to propionic acid. From the kinetic analysis, the imprinting of lipases mainly enhanced the catalytic reaction rate constant rather than the affinity between lipase and propionic acid compared with untreated lipase. …”
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  10. 330

    Inhibition effects of antibiotics ampicillin and gentamycin on the methanogenic activity of anaerobic biomass by Mahnaz Heidari, BiBi Fatemeh Nabavi, Hajar Saffari Khouzani, Mohammad Mehdi Amin

    Published 2012-01-01
    “…Three volatile fatty acids (VFAs) including acetic acid, propionic acid, and butyric acid were used as co-substrate. …”
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  11. 331

    Gene Activation by Cytoplasmic Acidification in Suspension-Cultured Rice Cells in Response to the Potent Elicitor, N-Acetylchitoheptaose by Dao-Yao He, Yoshiaki Yazaki, Yoko Nishizawa, Ryota Takai, Kosumi Yamada, Katsuhiro Sakano, Naoto Shibuya, Eiichi Minami

    Published 1998-12-01
    “…On the other hand, chitinase and β-glucanase mRNA levels did not change after addition of propionic acid or calyculin A. Treatment of the cells with propionic acid did not induce the production of reactive oxygen species. …”
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  12. 332

    Production of Polyhydroxyalkanoates using Volatile Fatty Acids from Municipal Wastewater Treatment Plant Sludge by Jeniffer Gracia, Carlos Montenegro, Nubia Moreno, Ivan Cabeza

    Published 2023-06-01
    “…The concentrations to complete the 1 g/L VFAs condition were: acetic acid 0.722 g/L; propionic acid 0.208 g/L and butyric acid 0.098 g/L; for 0.7 g/L VFAs: acetic acid 0. 505 g/L; propionic acid 0.145 g/L and butyric acid 0.068 g/L and 0.5 g/L VFAs: acetic acid 0.361 g/L; propionic acid 0.104 g/L and butyric acid 0.049 g/L. …”
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  13. 333

    EFFECT OF ACIDIC MARINATION ON THE QUALITY CHARACTERISTICS OF SPENT HEN KOBEBA DURING FROZEN STORAGE by Nesrin Mohammed, E. Mansour, A. Osheba, Amal Hassan

    Published 2017-03-01
    “…Lime juice followed by acetic acid was more effective in reducing total bacterial, psychrophilic bacteria and yeast and mold counts than propionic acid. Kobeba marinated with lime juice had higher rating scores (7.68-7.98) for all sensory properties than kobeba marinated with propionic acid and acetic acid. …”
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  14. 334

    Effects of Mulberry Branch and Leaves Silage on Microbial Community, Rumen Fermentation Characteristics, and Milk Yield in Lactating Dairy Cows by Yan Li, Jiaqi Wang, Jie Mei, Lingxia Huang, Hongyun Liu

    Published 2022-02-01
    “…The correlation analysis showed that eight bacterial species belonging to Firmicutes were positively correlated with propionic acid. However, four bacterial species belonging to the Bacteroides group were negatively correlated with propionic acid. …”
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  15. 335

    Evaluation of ensiled soy sauce by-product combined with several additives as an animal feed by Sadarman Sadarman, Muhammad Ridla, Nahrowi Nahrowi, Roni Ridwan, Anuraga Jayanegara

    Published 2020-05-01
    “…Materials and Methods: SSB was subjected to seven silage additive treatments: Fresh SSB, ensiled SSB, ensiled SSB+LAB, ensiled SSB+2% acacia tannin, ensiled SSB+2% chestnut tannin, ensiled SSB+0.5% propionic acid, and ensiled SSB+1% acacia tannin+1% chestnut tannin+0.5% propionic acid. …”
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  16. 336

    Effect of Electroacupuncture on Short-Chain Fatty Acids in Peripheral Blood after Middle Cerebral Artery Occlusion/Reperfusion in Rats Based on Gas Chromatography–Mass Spectrometry... by Xiaohua Ke, Qing Xiang, Pingli Jiang, Weilin Liu, Minguang Yang, Yihan Yang, Dan Shi, Lidian Chen, Jing Tao

    Published 2022-01-01
    “…The levels of acetic acid, propionic acid, and total SCFAs were considerably lower in the MCAO/R group than in the sham group (P<0.05). …”
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  17. 337

    Influence of Degassing Treatment on the Ink Properties and Performance of Proton Exchange Membrane Fuel Cells by Pengcheng Liu, Daijun Yang, Bing Li, Cunman Zhang, Pingwen Ming

    Published 2022-05-01
    “…However, the introduction of propionic acid in the LSC ink caused the Marangoni flux to inhibit the coffee ring effect and promote the uniform deposition of the catalyst. …”
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  18. 338

    Rearrangement of beta,gamma-unsaturated esters with thallium trinitrate: synthesis of indans bearing a beta-keto ester moiety by Silva Jr. Luiz F., Pedrozo Eliane C., Ferraz Helena M. C.

    Published 2006-01-01
    “…The rearrangement of beta,gamma-unsaturated esters, such as 2-(3,4-dihydronaphthalen-1-yl)-propionic acid ethyl ester, with thallium trinitrate (TTN) in acetic acid leads to 3-indan-1-yl-2-methyl-3-oxo-propionic acid ethyl ester in good yield, through a ring contraction reaction. …”
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  19. 339

    Regiospecific and Enantiospecific Ring Opening of Methyl (+)-(1'R, 2R)- and (-)-(1'R, 2S)-1-(2-phenylethanol) Aziridine-2-carboxylates by W. F. Reynolds, R. A. Toscano, Raúl G. Enríquez, Alberto Galindo, Laura F. Orea, Dino Gnecco

    Published 2000-08-01
    “…The acid-catalyzed ring-opening of methyl (+)-(1'R, 2R) and (-)-(1'R, 2S)-1-(2-phenylethanol) aziridine-2-carboxylates (1) and (2) lead quantitatively to the corresponding 2(S)-(-)-chloro-3-[2'-hydroxy-1'(R)-phenyl-ethylamino] propionic acid methyl ester (3) and 2(R)-(-)-chloro-3-[2'-hydroxy-1'(R)-phenyl-ethylamino] propionic acid methyl ester (4) hydrochlorides.…”
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  20. 340

    Some physico-chemical properties and catalytic activity of sulfate ion supported on WO3/SnO2 catalyst by M.N. Alaya, M.A. Rabah

    Published 2017-02-01
    “…The highest conversion of propionic acid was for 400 °C product, and decreased with an increase in calcination temperature. …”
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