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Volume 1997, Issue 84
Displaying 1-8 of 8 articles from this issue
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Yoko ITO1997 Volume 1997 Issue 84 Pages 1-4
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSThe basidiospore of the tea blister blight fungus attached on the surface of tea buds in late autumn. In winter tea buds lied dormant, and attached spores didn't germinate. When spring came, attached spores started germination with the growth of tea buds. These observations suggested that the spores of the blister blight fungus stayed on the surface of winter buds until early spring then germinate and penetrate into young tea leaves.View full abstractDownload PDF (2290K) -
Mitsuiku IWAHASHI, Akio MORITA1997 Volume 1997 Issue 84 Pages 5-11
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSUsing a column packed with Andosol, Dounward mobility of nitrate and ammonium nitrogen in soil was examined in relation to water permiability and organic matter content.
Water permiability was designed by the soil conpaction and various organic matter contents of soil were prepared by mixing of decomposed tea plant residues.
The results are summarized as follows. Nitrate was readily eluted with increase of the water permiability and also with increase of mixed organic matter. On the contrary, ammonium remained mostly in soil columun after the elutions carried out with much of water. Elution patterns of ammonium was not affected by the water permiability, but ammonium elution was promoted by organic matter contents.View full abstractDownload PDF (470K) -
Kenji HARAGUCHI, Hiroaki MURAKAMI, Takashi MINAMINO, Hideki MAKI, Yasu ...1997 Volume 1997 Issue 84 Pages 12-16
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSFor the purpose of the expansion of green tea consumption, a new method to produce the juice expresion powder of tea leaves was developed.
Fresh tea leaves were steamed, cut finely with a food processer, and expressed using a common juice mill at constant pressure (170kgf/cm2) for 30 minutes. The tea juice expression contained 5.8-8.7% solids and its amount was about 40% of that of the steamed tea leaves. After addition of a bass powdering material, the tea juice was freeze-dried to give a new type of juice expression powder.View full abstractDownload PDF (1574K) -
1. Utilization of New-Ceramics for a Tea Leaf ParcherNobuyuki TANAKA, Hideo MIYAZAKI, Yoshihiko TAKUBO1997 Volume 1997 Issue 84 Pages 17-26
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSApplication of new-ceramics to the pan of a tea leaf parcher was examined. The results of the experiments were as follows:
1. Gray-alumina had the highest spectral emissivity and the highest radiant intensity at the 330°C, which was the standard temperature of the pan of a tea leaf parcher during tea manufacturing, among the test materials. It was followed by Alumina-titania, cojilight and steel.
2. A pure ceramic pan was thought to be of no practical use because it was fragile and costly to make, but on the other hand a ceramic coated steel pan was of practical use because it was resistant to mechanical shock and could be made at reasonable cost.
3. The tea leaf parcher which has the first cylindrical rotary pan made of steel coated with gray-alumina, was developed.
4. The coarseness of the surface of the ceramic coated pan was able to prevent the adhesion of processing tea leaves to its surface.
5. The color of made tea processed with the developed machine was fresh green and the taste of that was mild with good aroma.View full abstractDownload PDF (1768K) -
Kenichirou YOSHII, Mitsutaka OOKI, Hiroyuki IRIKI, Hitoshi IJICHI1997 Volume 1997 Issue 84 Pages 27-31
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSBetween the GC patterns of tea aroma recovered by the simultaneous distillation extraction (SDE) technique and the trapping technique on porapack Q column, many different points were recognized.
From the model experiments by using authentic volatile compounds, the trapping technique on porapack Q column showed better recovery of volatiles than the SDE technique.View full abstractDownload PDF (215K) -
Yuichi YAMAGUCHI, Mari YAMAMOTO-MAEDA, Kenkou TSUJI1997 Volume 1997 Issue 84 Pages 32-34
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSDownload PDF (152K) -
Studies on the Ecology of the Insect Pests on Tea and the Improvement of Tea Breeding in Warm ResionTsuruyoshi FURUNO1997 Volume 1997 Issue 84 Pages 35-48
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSDownload PDF (2112K) -
Mitsuiku IWAHASHI1997 Volume 1997 Issue 84 Pages 49-58
Published: February 10, 1997
Released on J-STAGE: July 31, 2009
JOURNAL FREE ACCESSDownload PDF (681K)
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