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Volume 25, Issue 10
Displaying 1-12 of 12 articles from this issue
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Part I. Production of Extracellular Amyase by Endomyces Sp.Yukihiko HATTORI1961 Volume 25 Issue 10 Pages 737-743
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSAmylase-producing ability of twenty seven strains of genera Endomycopsis (exceptEndomycopsis fibuliger), Endomyces, Candida, Geotrichum and Oospora was examined.Among them a sole strain of Endomyces was found to produce extracellular amylase.
As a result of growth experiments using synthetic media, it was found that the selectedEndomyces sp. required vitamins and organic sulfur sources for growth.
Various media were examined for the production of amylase by shake culture method. Media containing yeast extract or wheat bran gave good yields of amylase.View full abstractDownload PDF (2546K) -
Atsushi YAMAMOTO1961 Volume 25 Issue 10 Pages 744-749
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSThe bulk of flavors in Saké were collected by adsorption methods using hydroquinoneformalin resin and active carbon. A part of flavors was adsorbed selectively from a large volume of Saké by hydroquinone-formalin resin and it was eluted by a steam distillation from the resin. The remaining flavors were caught by the reactivated active carbon which was washed with 95% of hot ethanol after treatment with Saké.
By an addition of these collected materials to original Saké, the lost fragrance was revived completely. This fact showed that these substances were almost all of flavors in original Saké.View full abstractDownload PDF (828K) -
Sadao SAKAMURA, Yataro OBATA1961 Volume 25 Issue 10 Pages 750-756
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSAnthocyanins present in eggplant were decolorized by anthocyanase from flesh of eggplant. The anthocyanins consisted of at least three different anthocyanins containing delphinidin as common aglycone, and that a main component of those was nasunin, delphinidin-3-diglucoside acylated with p-coumaric acid.
Using the anthocyanin as substrate, the anthocyanase action was optimal at pH 6.0 and 35°C, and was inhibited by potassium cyanide, thiourea, and sodium chloride. The data obtained so far show that anthocyanase acts on the following anthocyanidin derivatives in order of increasing rate of decolorization; pelargonidin-=peonidin-<cyanidin-<delphinidin-<delphinidin-glucoside acylated with p-coumaric acid.View full abstractDownload PDF (959K) -
Part III The Specificity of the Fermentation of Sugars by Brevibacterium pentoso-aminoacidicum nov. sp.Yoshio HIROSE, Kôichi YAMADA1961 Volume 25 Issue 10 Pages 757-767
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSThis work was undertaken to determine whether the degradation of sugars by Brevibacteriumpentoso-aminoacidicum nov. sp., a bacterium capable of producing amino acidsfrom pentoses and hexoses, was due to constitutive or inducible enzymes. It was alsointended to clarify the reason for the substrate specificity in the fermentation of sugars bythis bacterium. After a series of experiments using washed resting cells grown on variouskinds of sugars or their cell-free extracts, it was found that the enzymes involved in thedegradation of pentoses were inducible, while those of hexose metabolism were constitutive.The activities of several enzymes related to the pathways of pentose metabolism were demonstratedand the substrate specificity of sugar degradation by this strain was explained satisfactorily by the inducer specificity of these enzymes.View full abstractDownload PDF (1378K) -
Part XIII. Conversion of Polyalcohol Fermentation to Ethanol FermentationHiroshi ONISHI, Narimasa SAITO1961 Volume 25 Issue 10 Pages 768-772
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSIn a medium containing high concentration of yeast extract was observed aerobic formation of a large amount of ethanol by various yeasts of non-fermenting or extremely poor fermenting type such as Torulopsis famata, Candida polymorpha and Pichia membranaefaciens etc. Acetaldehyde formed as a metabolic intermediate leading to ethanol formation was trapped by the addition of sulfite and was identified as 2, 4-dinitrophenylhydrazone.View full abstractDownload PDF (641K) -
Saburo TAMURA, Makoto TAKAI, Satoshi MIYAMOTO, Seiroku SAKAI, Masayosh ...1961 Volume 25 Issue 10 Pages 773-777
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSVarious O, O-dialkyl O-cyanophenyl phosphates and phosphorothioates were prepared and their biological activities were examined. Among them, O, O-dimethyl O-(4-chloro-2-cyanophenyl) phosphorothioate was found to have selective and high toxicity to houseflies. O, O-Dimethyl O-(4-cyanophenyl) phosphorothioate, O, O-diethyl O-(4-cyanophenyl) phosphorothioate and O, O-diethyl O-(2-chloro-4-cyanophenyl) phosphorothioate showed high insecticidal activty to American cockroaches, though the former two were not so effective to houseflies. The dimethyl esters of these series exhibited markedly lowered mammalian toxicity. Among the O-ethyl O-cyanophenyl phenylphosphonothioates, O-ethyl O-(2-chloro-4-cyanophenyl) phenylphosphonothioate was highly effective to mites, while less effective to insects.View full abstractDownload PDF (690K) -
Part II. The Studies on the Yeast Glucose Dehydrogenase (I)Kazutami IMAI, Sanehide KOMAKI, Sang-dal SONG1961 Volume 25 Issue 10 Pages 778-781
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSThe present authors obtained direct proof of the occurrence of glucose dehydrogenasein yeast. Optimum pH of the glucose dehydrogenation system in yeast was about 7.0.After dialysis of the salting out preparation, the dialysate revealed only a trace of activity.The addition of DPN or TPN restored the activity. The majority of the yeast glucosedehydrogenase precipitated below about 0.70 ammonium sulfate saturation, and there wasno marked activity in 0.30 ammonium sulfate saturation. The yeast glucose dchydrogenase was observed to be highly specific for β-D-glucose.View full abstractDownload PDF (344K) -
Part VIII. The Structure of Grayanotoxin-II. Part 1Jun'kichi IWASA, Zenzaburo KUMAZAWA, Minoru NAKAJIMA1961 Volume 25 Issue 10 Pages 782-792
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSIt was established by the authors that Grayanotoxin-II has a novcl tetracyclic structure (I) containing one exocyclic methylene group and five hydroxyl groups. The relations among these functional groups are described in this report.View full abstractDownload PDF (1872K) -
Part IX. The Structure of Grayanotoxin-II. Part 2Jun'kichi IWASA, Zenzaburo KUMAZAWA, Minoru NAKAJIMA1961 Volume 25 Issue 10 Pages 793-797
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSOzonolysis of the acctoxy-γ-lactone (II) derived from Grayanotoxin-II (I) yielded α, α-dimcthyl-β-acctoxyglutaric acid (IIIa) and monohydroxyketo-γ-lactone (IVa).View full abstractDownload PDF (654K) -
Part X. The Struture of Grayanotoxin-II. Part 3Zenzaburo KUMAZAWA, Junkichi IWASA, Minoru NAKAJIMA1961 Volume 25 Issue 10 Pages 798-801
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSBy the ozonolysis of the mixture of unsaturated γ-lactonic acids (II and III), formaldehyde and a γ-lactonic acid (IV) having a five membered rink ketone were obtained from III, and an oily acidic product (V) from II. The acid (V) could be converted to 5-acetyl-2-carboxyphenylacetic acid (VIII), which could also be synthesized from 5-acctylindane (IX).View full abstractDownload PDF (496K) -
Osamu TERADA, Shizuko SUZUKI, Shukuo KINOSHITA1961 Volume 25 Issue 10 Pages 802-803
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSDownload PDF (204K) -
Kazuo UCHIDA, Akira KUNINAKA, Hiroshi YOSHINO, Masajiro KIBI1961 Volume 25 Issue 10 Pages 804-805
Published: 1961
Released on J-STAGE: February 07, 2011
JOURNAL FREE ACCESSDownload PDF (171K)
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