-
Part II. Syntheses of Certain α-L-Rhamnosyl Disaccharides
Shintaro KAMIYA, Sachiko ESAKI, Misao HAMA
1967 年 31 巻 3 号 p.
261-266
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
An attempt was made to synthesize certain α-L-rhamnosyl disaccharides. In this publication the following sugars were prepared by employing Helferich or Bredereck reaction; 6-O-α-L-rhamnosyl-D-glucose (rutinose), 6-O-α-L-rhamnosyl-D-galactose (robinobiose), 2-O-α-L-rhamnosyl-D-glucose (neohesperidose), all of which are known as sugar portions of plant glycosides, 6-O-α-L-rhamnosyl-D-mannose and 1-O-α-L-rhamnosyl-D-fructose, both of which have not yet been found in nature.
抄録全体を表示
-
Kazuo IWAI, Noboru SUZUKI, Shusaku MIZOGUCHI
1967 年 31 巻 3 号 p.
267-274
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Formyltetrahydrofolate synthetase (E. C. 6. 3. 4. 3) was found in fresh spinach leaves and purified about 60-fold by treatments of ammonium sulfate, protamine sulfate, dialysis, and DEAE-cellulose column chromatography. Some properties of the enzyme were investigated. Optimum pH was found to be 7.5, and optimum temperature was observed to be at 37°C. In the enzyme reaction, FAH4 and formate were required specifically as the substrates, and Mg
++ and ATP were essential components. The Michaelis constants for
dl-FAH4, formate, ATP and magnesium chloride were 1.7×10
-3M, 1.7×10
-2M, 4.1×10
-4M and 3.3×10
-3M, respectively. The primary product formed in the reaction catalyzed by the enzyme was suggested as N
10-formyl-FAH
4 spectrophotometrically. It was observed that the enzyme also catalyzed the reverse reaction. The possible role of the enzyme in plants was discussed.
抄録全体を表示
-
Isao TOYOSAWA, Uzo NISHIMOTO
1967 年 31 巻 3 号 p.
275-283
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
A rapid and systematic method is described for the determination of lipid-choline, free choline and two water-soluble bound cholines in plant tissues. These substances are extracted with isopropanol and methanol, avoiding the enzymatic degradation. The extract is fractionated into lipid-choline and water-soluble choline by applying the solvent-par-titioning method of Folch et al. The latter fraction is passed through Amberlite IRC-50 column, and separated into free choline and bound-choline fractions. Two forms of acidlabile choline are determined after hydrolyzing the bound-choline fraction with hydrochloric acid. The method was applied to the determination of various forms of choline in several plants, and lipid-choline and free choline were found to be major components.
抄録全体を表示
-
Part II. Purification and Properties of D-Glucose-isomerizing Enzyme
Gen-ichi DANNO, Sadahiko YOSHIMURA, Masato NATAKE
1967 年 31 巻 3 号 p.
284-292
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
D-Glucose-isomerizing enzyme has been extracted in high yield from D-xylose-grown cells of
Bacillus coagulans, strain HN-68, by treating with lysozyme, and purified approximately 60-fold by manganese sulfate treatment, fractionation with ammonium sulfate and chromatography on DEAE-Sephadex column. The purified D-glucose-isomerizing enzyme was homogeneous in polyacrylamide gel electrophoresis and ultracentrifugation and was free from D-glucose-6-phosphate isomerase. Optimum pH and temperature for activity were found to be pH 7.0 and 75°C, respectively. The enzyme required specifically Co
++ with suitable concentration for maximal activity being 10
-3M. In the presence of Co++, enzyme activity was inhibited strongly by Cu
++, Zn
++, Ni
++, Mn
++ or Ca
++. At reaction equilibrium, the ratio of D-fructose to D-glucose was approximately 1.0. The enzyme catalyzed the isomerization of D-glucose, D-xylose and D-ribose. Apparent Michaelis constants for D-glucose and D-xylose were 9×10
-2M and 7.7×10
-2M, respectively.
抄録全体を表示
-
Hisateru MITSUDA, Kyoden YASUMOTO, Kazuo MURAKAMI, Takanori KUSANO, Hi ...
1967 年 31 巻 3 号 p.
293-300
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Electron-microscopic examination of rice endosperm revealed the existence of proteinaceous subcellular particles, 1 to 4 μ in diameter and spherical or oval in shape. Isolation of the particles was effected by differential centrifugation in density gradient medium after mechanical or enzymic disintegration of endosperm cells. The isolated particles were predominantly composed of protein, and residual constituents were mainly lipid and carbohydrate. Their shape and behaviors were similar to those found in the endosperm. These facts show that the subcellular particles concerned are “protein bodies”. There seemed to be several kinds of protein bodies different with respect to their protein and lipid contents.
抄録全体を表示
-
Keiichiro MURAMATSU
1967 年 31 巻 3 号 p.
301-308
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
In an attempt to develope a rapid and simple method for the colorimetric determination of free ammonia in blood, the conditions for the indophenol reaction, the direct application of it for the determination of blood ammonia, and the interferences of a number of substances for the color development, have been investigated. This color reaction was sensitive enough for the direct method, but must be done under the limiting conditions, for the interfereing substances are contained in blood. Interferences of many amino acids for the color development were observed, but the effects differed among different amino acids, and many of substances other than amino acids showed very little or no intereference. Under the conditions applied, neither the amino acids nor other substances in blood interfered the method.
抄録全体を表示
-
Yoshiyuki TAKASAKI
1967 年 31 巻 3 号 p.
309-313
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
The equilibrium constant of the isomerization reaction between D-glucose and D-fructose which is catalyzed by a glucose isomerase from
Streptomyces sp. was obtained by both methods of chemical analysis and of kinetic study over the temperature range of 25° to 70°C.
It was found that the formation of D-fructose from D-glucose was an endothermic reaction with the heat of the reaction,
ΔH, of +2220 cal/mole. The standard free energy change,
ΔG, and the standard entropy change,
ΔS, associated with the isomeric change were found to be +180 cal/mole and +6.8 cal/deg. mole at 25°C, respectively. The values of these thermodynamic quantities at other temperature are also summarized.
抄録全体を表示
-
Part III. 1, 4-Linked Galacto-di- and Trisaccharides from Partial Acid Hydrolysate of the “Hot Water- Extract” Fraction of Soybean Seed Polysaccharides
Makio MORITA, Masakuni OKUHARA, Tadaaki KIKUCHI, Yosito SAKURAI
1967 年 31 巻 3 号 p.
314-318
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Partial acid hydrolysate of the “hot-water-extract” fraction of soybean seed polysac-charides contained a homologous series of galacto-oligasaccharides as a major component group. Two of them were isolated by column chromatography. They gave, on methylation followed by acid hydrolysis, 2, 3, 4, 6-tetra-, and 2, 3, 6-tri-O-methyl D-galactose, and were, therefore, 1, 4-linked galacto-di- and trisaccharides, respectively. They were hydrolyzed with human saliva to liberate D-galactose but not with brewer's yeast. The alditols derived from these oligosaccharides showed infrared absorptions at 885 and 895cm
-1, respectively. These two results were strong evidences for the presence of β-linkages in the molecules of the oligossacharides. The optical rotation and the melting point of the disaccharide agreed with those of the β-1, 4-linked galactodisaccharide hitherto reported. Thus D-galacto-pyranosyl residues in the arabinogalactan are probably connected mainly by β-1, 4-linkage.
抄録全体を表示
-
Part III. The Synthesis of 3-β-D-Ribofuranosyladenine 5'-Phosphate (The Synthesis and the Structure of 3-β-D-Ribofuranosyladenine 5'-Phosphate)
Motoji ASAI, Michiko MIYAKI, Bunji SHIMIZU
1967 年 31 巻 3 号 p.
319-323
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
A direct synthetic method of adenine nucleotides has been described. Treatment of adenine with 2, 3-di-O-benzoyl-5-diphenylphosphoryl-D-ribofuranosyl bromide in acetonitrile at 40°C, followed by removal of the protecting groups gave AMP and 3-iso-AMP. The structure and configuration in glycosidic center of the latter was established by UV and NMR spectral studies. Furthermore, treatment of 3-iso-AMP with 5'-nucleotidase gave the nucleoside, which is identical with 3-isoadenosine in its physical properties.
抄録全体を表示
-
Part II. Separation and Identification of the Phenolic Compounds
Takeshi HASHIZUME, Tohru YAMAGAMI, Yukiko SASAKI
1967 年 31 巻 3 号 p.
324-329
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
By gas chromatography the following eight phenolic compounds and benzoic acid were identified from a sample of cane final molasses using both polar and non-polar stationary phases: anisole, phenetole, phenol,
m-cresol, salicylic acid, resorcinol, vanillic acid, and syringic acid. The peaks corresponding to
p-coumaric acid and vanillin were also found using non-polar phase. The structures of four or five unidentified components were inferred from the relation between retention temperature and functional group number of the phenolic compounds.
抄録全体を表示
-
Part XVII. Some Physicochemical Properties and Amino Acid Composition of Alkaline Protease of Bacillus subtilis var. amylosacchariticus
Daisuke TSURU, Heizo KIRA, Tekehiko YAMAMOTO, Juichiro FUKUMOTO
1967 年 31 巻 3 号 p.
330-335
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Some physicochemical properties and amino acid composition of the alkaline protease of
B. amylosacchariticus were determined. The molecular weight and sedimentation coef-ficient were estimated to be 22, 700 and 2.89s, respectively, and the amino terminal amino acid was identified to be alanine. The enzyme contained 15.9% of nitrogen and was composed of 220 residues of amino acid: lys
6, his
5, arg
3, asp
20, thr
14, ser
37, glu
12, pro
10, glY
25, ala
27, val
20, met
3, isoleu
12, leu
12, tyr
9, phe
2, try
3 and amide ammonia
16. The results indicate that protein nature and chemical properties of the alkaline protease presented here are distinct from those of alkaline proteases obtained from the other strains of
B. subtilis, such as subtilopeptidase A, B and BPN'
抄録全体を表示
-
Part I. The Isolation and the Insecticidal Activity of Cocculolidine
Kojiro WADA, Katsura MUNAKATA
1967 年 31 巻 3 号 p.
336-339
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Cocculolidine isolated from leaves of
Cocculus trilobus DC. (Kamiebi in Japanese), the host plant of Japanese fruit-piercing moths, exhibited insecticidal activity to leaf hoppers (
Nephotettix bipunctatus cincticepts Uhler) and Azuki-been weevils (
Callosobruehus chinensis Linne), however it had no activity to larvae of the fruit-piercing moth,
Oraesia excavata Butler (Akaeguriba in Japanese), suggesting an interesting phenomenon of the host-parasite interrelationship.
抄録全体を表示
-
Part I. Erythorbic Acid-Producing Strain and Cultural Condition
Juichiro YAGI, Tatsuo YAMASHITA, Kazuo KATO, Yoshimasa TAKAGI, Heiichi ...
1967 年 31 巻 3 号 p.
340-345
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Screening was carried out for erythorbic acid (EA)-producing strains from about 5, 000 newly isolated fungi and bacteria.
Penicillium notatum FY 115 was screened out as most powerful EA producer. Only
Penicillium, but no other genera, was obtained as EA producers from our screening program. Monospore selections and mutagenic treatments succeeded to elevate the yield of EA over 40% to glucose supplied. Various cultural conditions were studied, and pH change during fermentation process was proved to be most important for favorable EA production. Over 80% yield could be obtained when washed mycelium was used in dilute glucose solution.
抄録全体を表示
-
Part II. Erythorbic Acid Production by Jar Fermentor
Katsumi SHIMIZU, Keijiro NISHIYAMA, Tsutomu INOUE, Norio TAKANO, Masay ...
1967 年 31 巻 3 号 p.
346-352
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Abundant accumulation of EA by the strain FY 115,
Penicillium sp., in fermentation broth was studied, and EA, both free and Na-salt, was obtained as crystal in the yield of about 45% to glucose supplied, in the media of 8% glucose by jar fermentor, in considering the inhibitory effect of some metal ion.
Extraction processes were improved to elevate the yield and was developed the continuous multi-bed extraction system of anion-exchange resin, which resulted in the yield of 90.9% of EA from fermentation broth in sum total.
抄録全体を表示
-
Masako MATSUO, Kiyoshi SATO, Seizi KITANI, Yukio SATOMURA
1967 年 31 巻 3 号 p.
353-356
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
A new sulfur-containing imidazole compound, m.p. 218_??_223°C (decomp.), [a]_??_+7.4° in water), C
11H
19N
3O
3S was isolated from sclerotia of Sclerotinia libertiana and named sclerothionine. The chemical structure of sclerothionine was identified with 2-hydroxyethyl-ergothioneine which was synthesized from ethylene chlorhydrine and ergothioneine.
抄録全体を表示
-
Part III. Isolation and Physicochemical Properties of Yeast Proteinase A and C
Tadao HATA, Rikimaru HAYASHI, Etsushiro DOI
1967 年 31 巻 3 号 p.
357-367
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
The presence of three types of proteinase A, B and C in the autolysate of baker's yeast was demonstrated by the chromatography on DEAE-Sephadex A-50, and proteinase A and C were isolated and purified by a relatively simple procedure, which was mainly conducted by repeating the chromatography and alcohol fractionation. The final preparation of proteinase C was found to be homogeneous by various physical criteria and crystallized from alcohol solution. On the other hand, although the preparation of proteinase A also showed homogeneous in chromatographic and ultracentrifugal analyses, the result of electrophoresis disclosed the heterogeneity of the preparation. As the results of the chemical and physicochemical analyses, both enzymes showed large contents of carbohydrate, higher molecular weights and acidic isoelectric points, which seemed to be characteristic to the present proteinases. The properties of three types of proteinase from yeast are also discussed.
抄録全体を表示
-
Takeshi YASUMOTO, Yoshiro HASHIMOTO
1967 年 31 巻 3 号 p.
368-372
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Succeeding to asterosaponin A, the second saponin component has been isolated from a starfish (
Asterias amurensis) and designated asterosaponin B. It contains a conjugated ketone and one molecule of sulfuric acid as the sodium salt. The sugar moiety consists of two molecules of D-quinovose and one molecule each of D-fucose, D-xylose, and D-galactose, differing from that of asterosaponin A consisting of two molecules each of D-quinovose and D-fucose. On acid hydrolysis both asterosaponins A and B yielded the similar mixture of aglycon components. The two main components isolated were designated asterogenins I and II, respectively.
抄録全体を表示
-
Kazuyuki MAEKAWA, Masanobu KODAMA, Mitsuo KUSHII, Mitsutoshi MITAMURA
1967 年 31 巻 3 号 p.
373-377
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
The essential oils contained in the peels of Kabusu, Sudachi, Natsudaidai orange were studied by gas-chromatography. The major essential oil were
d-limonene, β-pinene, camphene, 1, 8-cineol, and minor components there were found 23 compounds in Kabusu, 14 in 14 in Natsudaidai, and 11 in Daidai oil.
Iyokan, Daidai and components of each caprylaldehyde. As Sudachi, 9 in Iyokan,
抄録全体を表示
-
Michihiro SUGANO
1967 年 31 巻 3 号 p.
378-381
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
Rates of steroid-C
14 excretion in the normal male and laying female chickens were studied following a single intravenous administration of cholesterol-4-C
14 in lipoproteins. During six day periods, male chickens excreted about 12% of the dose and the laying hens, 20%. Eighty-five to ninety per cent of the activity excreted was associated with the bile acid fraction. Laying hen excreted more bile acids (about 1.5 times) than that by the male. The amount of fecal cholesterol of the male and the layer was the same, but that of coprostanol was somewhat small in the latter. While the data of non laying female are not available, these differences may have been attributed to the hormal action of estrogen rather than merely to sex difference.
抄録全体を表示
-
Humio KURASAWA, Toshiro HAYAKAWA, Shosaku MOTODA
1967 年 31 巻 3 号 p.
382-384
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー
-
Ikuzo URITANI, Hideko NOMURA, Tei TERAMURA
1967 年 31 巻 3 号 p.
385-388
発行日: 1967年
公開日: 2008/11/27
ジャーナル
フリー