• Title/Summary/Keyword: allyl alcohol

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Kinetic Studies of Parent Compounds and Its Metabolite by Combined Treatment of Allyl Alcohol with Ethanol in vivo (Allyl Alcohol 및 Ethanol 혼합투여에 의한 혈중 농도 변화 및 독성과의 상관성)

  • 이주영;정승민;이무열;정진호
    • Toxicological Research
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    • v.14 no.4
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    • pp.557-562
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    • 1998
  • Allyl alcohol is metabolized in the liver through two steps, first to reactive acrolein by alcohol dehydrogenase (ADH), subsequently to acrylic acid by aldehyde dehydrogenase (ALDH). Since ethanol could compete the same enzymes to be metabolized in the liver, we have determined the plasma concentrations of allyl alcohol and ethanol followed by combined treatment. Pretreatment of rats with 2g/kg ethanol followed by ip administration of 40mg/kg allyl alcohol increased the lethality significantly. Determination of in vivo blood concentrations revealed that ethanol pretreatment caused the apparent decrease in allyl alcohol clearance, whereas acetaldehyde level in blood increased significantly by allyl alcohol treatment, as determined by head space GC analysis. Treatment of 4-methylpyrazole, an inhibitor of ADH, delayed allyl alcohol elimination significantly and reduced its lethality. Collectively, these findings suggested that reduction of allyl alcohol clearance in the presence oj ethanol was mediated through ADH competitive inhibition.

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Ethanol이 allyl alcohol 독성에 미치는 영향

  • 이주영;정진호
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1994.04a
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    • pp.323-323
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    • 1994
  • Allyl alcohol은 간에서 두 단계의 효소 반응을 거쳐 대사되는데, 먼저, alcohol dehydrogenase (ADH)에 의해 독성 활성체인 acrolein으로 바뀌고, 이후 계속하여 aldehyde dehydrogenase (ALDH)에 의해 acrylic acid로 무독화되어 배설된다. Ethanol 역시 간에서 대사되는데 있어 같은 효소들을 공유하므로 allyl alcohol과 경쟁적으로 반응할 것이다. 따라서, 본 실험에서는 ethanol에 의한 대사 효소 경쟁반응에 의해 allyl alcohol 의 간독성이 어떻게 변화하는지를 연구하였다. 우선 ethanol과 allyl alcohol을 동시 투여할 경우 5시간째에 allyl alcohol에 의해 증가된 ALT level을 낮춘다는 보고를 확인하고자 ethanol 2 g/kg과 allyl alcohol 40 mg/kg을 동시투여했으나 오히려 치사율이 증가했고, ethanol을 2시간 전처리한 군에서도 역시 치사율이 증가되고, 간의 glutathione 양은 allyl alcohol 단독 처리군에 비해 현저히 감소되는 양상을 보였다.

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Effect of Ethanol on Allyl alcohol-Induced Toxicity (Ethanol이 Allyl alcohol 독성에 미치는 영향)

  • Lee, Joo-Young;Kim, Dae-Byung;Moon, Chang-Kiu;Chung, Jin-Ho
    • YAKHAK HOEJI
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    • v.38 no.2
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    • pp.107-113
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    • 1994
  • Ally alcohol is metabolized in the liver through two steps, first to reactive acrolein by alcohol dehydrogenase(ADH), subsequently to acrylic acid by aldehyde dehydrogenase(ALDH). Since ethanol could compete the same enzymes to be metabolized in the liver, we have studied the interaction between allyl alcohol and ethanol on liver toxicity. Simultaneous treatment of 2 g/kg ethanol by ip administration with 40 mg/kg allyl alcohol to rats increased the lethality significantly, accompanied by potentiation of the loss of hepatic glutathione. Collectively, these findings suggested that ethanol potentiated the hepatotoxicity and lethality induced by allyl alcohol probably through competing two metabolizing enzymes, ADH and ALDH.

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Allyl Alcohol Found in Heated Garlic is a Potent Selective Inhibitor of Yeasts

  • Lee Se-Hi;Woo Yong-Ho;Kyung Kyu-Hang
    • Journal of Microbiology and Biotechnology
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    • v.16 no.8
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    • pp.1236-1239
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    • 2006
  • Allyl alcohol (2-propen-l-ol), found in considerable amounts in heated garlic, was able to discriminate yeasts from bacteria and was approximately three orders of magnitude more inhibitory towards yeasts than bacteria. The average minimum inhibitory concentration (MIC) of allyl alcohol for bacteria and yeasts was 5.0% and 0.0056%, respectively. The unsaturated primary alcohols, including allyl alcohol and 2-buten-l-ol, seemed to work differently from all the other saturated alcohols and unsaturated secondary alcohols in inhibiting various yeasts. An alcohol dehydrogenase-negative (ADH$^-$) strain of Saccharomyces cerevisiae was as resistant to allyl alcohol as various bacteria, exhibiting an MIC of 5.0%. The unsaturated primary alcohols were apparently oxidized into the corresponding unsaturated aldehydes before they inhibited the yeasts.

Cloning and Expression of the Structural Gene for Alcohol Dehydrogenase of Zymomonas mobilis in Escherichia coli (Zymomonas mobilis 알코올 탈수소 효소 유전자의 Cloning과 Escherichia coli 에서의 발현)

  • Yoon, Ki-Hong;Shin, Byung-Sik;M.Y Pack
    • Microbiology and Biotechnology Letters
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    • v.17 no.4
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    • pp.301-306
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    • 1989
  • A genomic library of Zymomonas mobilis DNA was constructed in Escherichia coli using plasmid pUC9 Allyl alcohol was used to screen a genomic clone expressing alcohol dehydrogenase. The plasmids isolated from two clones, which were sensitive to allyl alcohol, were found to be related and to share a common 2.6 kb fragment encoding alcohol dehydrogenase II identified as one of two isozymes in Z. mobilis by staining for alcohol dehydrogenase activity on polyacrylamide gel and spectrophotometric analysis of several substrate oxidations.

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Antimicrobial Activity of Chemical Substances Derived from S-Alk(en)yl-L-Cysteine Sulfoxide (Alliin) in Garlic, Allium sativum L.

  • Choi, Mi-Kyung;Chae, Kyung-Yeon;Lee, Joo-Young;Kyung, Kyu-Hang
    • Food Science and Biotechnology
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    • v.16 no.1
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    • pp.1-7
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    • 2007
  • Garlic (Allium sativum L.) contains a specific sulfur compound, the S-allyl derivative of L-cysteine sulfoxide, and has long been known for its antimicrobial activity against various microorganisms, including bacteria, fungi, and protozoa. The principal antimicrobial compound of garlic is S-allyl-L-propenethiosulfinate (allicin) which is generated by an enzyme, alliinase (L-cysteine sulfoxide lyase), from S-allyl-L-cysteine sulfoxide (alliin). This compound exists exclusively in Allium as a major non-protein sulfur-containing amino acid. S-Allyl-L-propenethiosulfinate belongs to the chemical group of thiosulfinates and is a highly potent antimicrobial. The potency of garlic extract is reduced during storage since thiosulfinates are unstable and are degraded to other compounds some of which do not have antimicrobial activity. Diallyl polysulfides and ajoene are sulfur compounds derived from allicin that do possess antimicrobial activity. It was recently found that garlic becomes antimicrobial on heating at cooking temperatures, and that the compound responsible for this is allyl alcohol, which is generated from alliin by thermal degradation.

Kinetics and Mechanism of $N_2H_4-KBrO_3$ Reaction in the Presence of Allyl Alcohol$^\dag$

  • Choi, Q.-Won;Chung, Keun-Ho
    • Bulletin of the Korean Chemical Society
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    • v.7 no.6
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    • pp.462-465
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    • 1986
  • Kinetics and Mechanism of $N_2H_4-KBrO_3$ reaction in the presence of allyl alcohol have been studied. The pseudo-first order rate constant for gas evolution was found to be $10^{-4}{\sim}10^{-2}\;sec^{-1}\;at\;25.0{\pm}0.1^{\circ}C$, increasing with concentration of hydrogen ion. When concentrations of sulfuric acid and allyl alcohol are both sufficiently high, the following overall reaction explains experimental results reasonably well: $N_2H_4\;+\;BrO_3^-\;+\;H^+\;{\to}\;N_2\;+\;HOBr\;+\;2H_2O,\;CH_2\;=\;CHCH_2OH\;+\;HOBr\;{\to}\;CH_2-OHCHBrCH_2OH$. More complicated reaction mechanisms at lower acidity conditions have been contemplated.

Hydroiminoacylation of Allyl and Homoallyl Alcohol Derivatives with Benzalimide and Solvolysis of Hydroacylated Products

  • 홍준배;전철호
    • Bulletin of the Korean Chemical Society
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    • v.16 no.4
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    • pp.363-369
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    • 1995
  • Hydroiminoacylations of allyl and homoallyl alcohol and their derivatives with benzaldimine by Wilkinson's complex have been studied. All these terminal alkene derivatives except allyl alcohol were hydroacylated according to anti-Markownikoff's rule to give the corresponding linear alkyl compounds without showing oxygen directing effect, even though hydroiminoacylation of 3-acetoxy-1,5-hexadiene showed strong allyloxy directing effect over homoallyloxy directing effect in a 92:8 ratio. Solvolysis of 4-acetoxy-1-phenylbutan-1-one, previously prepared by hydroiminoacylation, in ethanol led to etherification giving 4-ethoxy-1-phenylbutan-1-one through neighbouring group participation, while that of 5-acetoxy-1-phenylpentan-1-one led to common transesterification giving 5-hydroxy-1-phenylpentan-1-one. Application of branched alkanols such as isopropanol and t-butanolin solvolysis of 4-acetoxy-1-phenylbutan-1-one underwent competition between etherification and transesterification.

Synthesis of Phosphates and Phosphoric Amides (Ⅰ) (Phosphates 및 Phosphoric Amides의 합성 (제1보))

  • Kil-Yeong Choi;Sam-Kwon Choi
    • Journal of the Korean Chemical Society
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    • v.24 no.6
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    • pp.457-462
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    • 1980
  • Phosphates and phosphoric amides were synthesized by the reaction of phosphoryl chloride with allyl alcohol, 2,3-dibromopropanol, 2-pyrrolidone and ethylenimine. All of these compounds were thermally very unstable. Allyl phosphorodichoridate and diallyl phosphorochloridate gave significant amount of polymeric products when they were distilled. IR spectra showed characteristic P=O stretching bands between 1300 and $1200 cm^{-1}$ and NMR spectra were very complicated due to the long range coupling effect of phosphorus atom. And mass spectrum of 2,3-dibromopropyl phosphorodichloridate gave no indication of molecular ion peak.

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Studies on the Polymeric Surfactants (III);Synthesis of Sodium ${\alpha}-Sulfo$ Fatty Acid Allyl Ester Oligomers (고분자(高分子) 계면활성제(界面活性劑)에 관한 연구(硏究) (제(第) 3 보(報));알릴에스테르 ${\alpha}$-술폰 지방산(脂肪酸) 고분자(高分子) 화합물(化合物)의 합성(合成))

  • Nam, Ki-Dae;Jeong, No-Hee;No, Sueng-Ho
    • Journal of the Korean Applied Science and Technology
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    • v.6 no.2
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    • pp.45-51
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    • 1989
  • Allyl aliphatic carboxylates were synthesized by azotropic reaction with benzene between allyl alcohol and capric acid, lauric acid, myristic acid, palmitic acid or stearic acid respectively. allyl aliphatic carboxylates oligomers were prepared from polymerization giving allyl aliphatic carvboxylates in the presence of potassium persulfate in methanol, and the ${\alpha}-sulfonation$ of these five allyl aliphatic carboxylates oligomers were carried by direct addition of dry sulfur trioxide. Especially, molecular weights of fatty acid alylester oligomers and their sodium salts of ${\alpha}-sulfo$ fatty acid allylester oligomers were measured by boiling point method.