All issues
Volume 64, Issue 5
Displaying 1-18 of 18 articles from this issue
- |<
- <
- 1
- >
- >|
-
Akihiro HARA, Genzou NAGAHAMA, Akira OHBAYASHI, Rikimaru HAYASHI1990 Volume 64 Issue 5 Pages 1025-1029
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSHydrostatic pressure of 1000_??_6000kg/cm2 was applied to enzyme solution and Namazake (nonpasteurized rice wine) to investigate high pressure effects on inactivation of enzymes and microorganisms. The pressurization caused a partial inactivation of enzymes (α-amylase, glucoamylase, protease, serine carboxypeptidase), and after pressurization at 6000kg/cm2 for 10min at 25°C, 20_??_60 percent of the original activity remained. Increasing temperature, ethanol concentration, and duration of pressurization accelerated the inactivation of these enzymes. Repeating the pressurization was also effective in increasing enzyme inactivation. Pressurization of 3000kg/cm2 for 10min at 25°C sterilized the Lactobacillus and yeast in Namazake. Namazake after pressurization at 4000kg/cm2 for 30min at 25°C had the same flavor as the original Namazake. This was stored for a month at 30°C and no deterioration in constituents or flavor was noted.View full abstractDownload PDF (386K) -
Masato NAKAMURA, Takeo UCHIYAMA1990 Volume 64 Issue 5 Pages 1031-1033
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSA simple and convenient assay method for detecting pectic enzymes was devised by using Cetavlon (cetyltrimethylammonium bromide), which forms precipitates with acidic polysaccharides.
Five rnilliliters of 2% agar solution containing 0.3% pectin or pectic acid was poured into petri dishes (9cm in diameter), and stainless cups (8mm in diameter, 10mm in height) which used to assay antibiotic substances were put on the agar plates. Enzyme solution was poured into the cups and incubated for about 15hr at 37°C. For detecting the lytic zones, 3% Cetavlon solution was run into the agar plates, and allowed to standing for about 30min at room temperature. The diameter of lytic zone around the cups was measured with a ruler. There was a linear relationship between the diameter of the lytic zone and logarithms of enzyme concentration. The pH optima of the pectic enzymes were also estimated by changing the pH of the agar plates containing the substrate. Pectic acids with degrees of polymerization below 12 to 15 did not form precipitates with Cetavlon.View full abstractDownload PDF (222K) -
Shigezo UDAKA1990 Volume 64 Issue 5 Pages 1035-1038
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (336K) -
Koji YODA, Makari YAMASAKI1990 Volume 64 Issue 5 Pages 1039-1042
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (332K) -
Hideo YAMAGATA1990 Volume 64 Issue 5 Pages 1043-1046
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (294K) -
Kozo NAGAOKA1990 Volume 64 Issue 5 Pages 1047-1050
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (336K) -
Ichiro YAMASHITA1990 Volume 64 Issue 5 Pages 1051-1055
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (466K) -
Norihiro TSUKAGOSHI1990 Volume 64 Issue 5 Pages 1056-1059
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (293K) -
Reiko SASADA, Atsushi KAKINUMA1990 Volume 64 Issue 5 Pages 1060-1063
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (319K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1065-1066
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (139K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1066-1067
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (105K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1067-1069
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (251K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1069-1070
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (180K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1070-1071
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (155K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1071-1073
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (171K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1085-1087
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (948K) -
[in Japanese]1990 Volume 64 Issue 5 Pages 1088-1089
Published: May 15, 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (846K) -
1990 Volume 64 Issue 5 Pages 1134
Published: 1990
Released on J-STAGE: November 21, 2008
JOURNAL FREE ACCESSDownload PDF (49K)
- |<
- <
- 1
- >
- >|