All issues
Volume 26, Issue 7
Displaying 1-10 of 10 articles from this issue
- |<
- <
- 1
- >
- >|
-
Part III. Synthesis of 4-Methyl-5-ethylfluorene (part 2)Saburo TAKAHASHI1962 Volume 26 Issue 7 Pages 401-407
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESS4-Methyl-5-ethylfluorene and related 4, 5-disubstituted fluorene derivatives were syntheszied starting from 4-ethylphenanthrene.View full abstractDownload PDF (1160K) -
Part IV. Synthesis of 5-Alkylfluorene-4-acetic AcidsSaburo TAKAHASHI1962 Volume 26 Issue 7 Pages 408-411
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESS5-Ethylfluorene-4-acetic acid was obtained by converting 5-ethylfluorcnone-4-carboxylic acid into corresponding 4-acetic acid followed by two-steps reduction of the latter. Attempted Arndt-Eistert reaction of 5-ethylfluorene-4-carboxylic acid in the usual manner gave only a resinous product which did not dissolve in alkali.View full abstractDownload PDF (441K) -
Part V. Purification of ε-Lysine AcylaseTsutomu ISHIKAWA, Tetsuya TOSA, Ichiro CHIBATA1962 Volume 26 Issue 7 Pages 412-416
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSε-Lysine acylase of Achromobacter pestifer EA was purified by fractionations with ammonium sulfate and acetone, and by vertical zone electrophoresis.As a result, this bacterial ε-lysine acylase was obtained as anelectrophoretically homogeneous protein, specific activity of which is the highest among ε-lysine acylases ever reported.View full abstractDownload PDF (759K) -
Hisateru MITSUDA, Kazuo MURAKAMI, Fumio KAWAI1962 Volume 26 Issue 7 Pages 417-423
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSThe authors have developed a polarographic technique in which Clark oxygen electrode (stationary platinum electrode covered with a polyethylene membrane) is employed for the determination of respiratory activity.The procedure of the operation is very simple, yet it was highly sensitive to the changes of the oxygen concentration in the solution, and the value of current was proportional to the oxygen concentration. The respiratory activity and control of rat liver mitochondria could be determined satisfactorily by this method.View full abstractDownload PDF (704K) -
Part X. Purification and Physico-chemical Properties of Q-EnzymeIkuo IGAUE1962 Volume 26 Issue 7 Pages 424-433
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSPurification of Q-enzyme prepared from the extract of rice seed at the milky stage employing precipitation by lead acetate, fractionation by ammonium sulfate and chromatography on hydroxylapatite was carried out. The highly purified preparation of Q-enzyme was nearly homogeneous in electrophoresis, chromatography and solubility, and was nearly free from amylase, maltase, isoamylase, phosphorylase and phosphatase activities. Some of the physico-chemical and enzymic properties of the preparation were also investigated.View full abstractDownload PDF (3099K) -
Part II. Stimulation of α-Amylase Liberation with PhosphopeptidesKenzo TONOMURA, Fusae FUTAI, Osamu TANABE1962 Volume 26 Issue 7 Pages 434-441
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSIt was previously reported that α-amylase accumulation is caused with in the mycelium grown in a phosphate deficient medium and the concentration of anions or pH in a surrounding medium is responsible for its liberation. As it was subsequently found that α-amylase liberation from the mycelium of Aspergillus oryzae is stimulated by peptone, an attempt was made on purification of effective substances from it.The present paper describes on purification and properties of phosphopeptides found as an effective substance for α-amylase liberation, and discusses on the stimulation effect, comparing with the effects on pH and concentration of anions which were previously observed.View full abstractDownload PDF (1024K) -
Part XVI. Aerobic Destruction of Indole-3-acetic Acid Catalyzed by Crystalline Japanese-radish Peroxidase a and cYuhei MORITA, Katsuzo KAMEDA, Masayuki MIZUNO1962 Volume 26 Issue 7 Pages 442-446
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSBoth crystalline Japanese-radish peroxidase a and c could catalyze the aerobic destruction of indole-3-acetic acid in the presence of a small amount of hydrogen peroxide as an inducer. The pH dependences of the enzymic activities of peroxidase a and c were different from each other. The optimum pH of peroxidase a was found at 3.6, while that of peroxidase c lied in a broad range over 3 to 4.8.In lower concentrations of both peroxidases at pH 3.8 and 6.0, the major product of the reaction was identical with that presented by Ray with using an Omphalia enzyme, which would probably be methyldioxindole, while, in higher concentrations of both peroxidases at pH 3.8, the major product was found to be indolealdehyde.View full abstractDownload PDF (705K) -
Part II. Oxidation of Homogentisic Acid and Gentisic Acid by the Enzyme of the Wood-rotting Fungus Poria subacidaToshio FUKUZUMI1962 Volume 26 Issue 7 Pages 447-451
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSOxidation of homogentisic acid and gentisic acid by the enzyme of Poria subacida and the effect of α, α'-dipyridyl on their oxidation were studied through oxygen uptake using Warburg apparatus.The oxidation products of these two acids were investigated by their ultraviolet absorption spectra and by paperchromatography.View full abstractDownload PDF (675K) -
Morifusa ETO, Yasuyoshi OSHIMA1962 Volume 26 Issue 7 Pages 452-459
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSSome cyclic phosphorus esters were prepared from o-hydroxybenzyl alcohol and its analogues. They reacted with nucleophilic agents to open their heterocyclic ring at P-O-C (aryl) bond. Phosphate ion catalyzed the hydrolysis of the cyclic phosphorus esters under a mild condition. An intermediate hydrolysate was separated by paper electrophoresis.View full abstractDownload PDF (1087K) -
Aromatische Verbindung aus dem BlätteralkoholMinoru OHNO, Akikazu HATANAKA, YUZO INOUE1962 Volume 26 Issue 7 Pages 460-466
Published: 1962
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSDurch Erhitzen von 3-cis-Hexen-1-ol (Blatteralkohol) mit Natrium wurde die aromatische Verbindung (2-Propyl-5-äthyl-benzylalkohol) hergestellt und auch aus 3-trans-, 2-cis-oder 2-trans-Hexen-1-ol, oder aus 2-trans-Hexen-1-al (Blätteraldehyd) wurde die gleiche Verbindung erhalten. Durch eine gleiche Reaktion, wurde aus 3-Penten-1-ol die aromatische Verbindung (2-Äthyl-5-methyl-benzylalkohol) und aus 2-trans-Buten-1-ol wurde 2-Methylbenzylalkohol erhalten.
Wir möchten besonders diese interessante Reaktion, bei der aus αβ-oder βγ-ungesattigten, n-primären Alkoholen oder Aldehyden Benzylalkohole mit verschiedenen Substitutionen hergestellt werden, als “Blätteralkohol-Reaktion” bezeichnen.View full abstractDownload PDF (830K)
- |<
- <
- 1
- >
- >|