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Tsukuba Business-Academia Cooperation Support Center, Agriculture, Forestry and Fisheries Research Council Secretariat of the Ministry of Agriculture, Forestry and Fisheries, Japan (MAFF) was established in 1978 as Tsukuba Office and has been planning and operating various research facilities for supporting experimental research activities of research agencies, prefectural organizations and universities. The Tsukuba Business-Academia Cooperation Support Center is currently managing two centers, Agriculture, Forestry and Fisheries Research Infor [...]

Journal Article

Journal Article

Effects of storage conditions on quality of matcha [powdered tea]  [2002]

Haraguchi, Y. (Ito-En Co. Ltd., Sagara, Shizuoka (Japan). Central Research Inst.); Sano, H.; Nakazato, K.; Tomaru, K.; et al.

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The effects of different storage conditions (temperature and period) on quality of Matcha have been studied by measuring the contents of chlorophyll and its derivatives, total vitamin C, the surface color value and the amount of oxygen in tea bag. Sensory test was used at the same time. As a result, it was found that the preservation of Matcha under low temperature (-70 and 4degC) kept its quality in good conditions during 24 weeks. Furthermore, the preservation at room temperature (25degC) kept the quality in the moderate conditions during 24 weeks. However, at the higher temperature of 37degC, the quality of Matcha resulted in fairly bad in 3 or 4 weeks. The cause of the changes in quality should be related to the decrease of the amount of oxygen in tea bag at the higher storage temperatures.
From the journal
Tea Research Journal (Japan)
ISSN : 0366-6190

Bibliographic information

Language:
Japanese
Type:
Summary
In AGRIS since:
2005
Issue:
93
Start Page:
1
End Page:
8
All titles:
"Effects of storage conditions on quality of matcha [powdered tea]"@eng
Other:
"Summaries (En, Ja)"
"2 tables; 4 fig.; 6 ref."
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Bibliographic information

Language:
Japanese
Type:
Summary
In AGRIS since:
2005
Issue:
93
Start Page:
1
End Page:
8
All titles:
"Effects of storage conditions on quality of matcha [powdered tea]"@eng
Other:
"Summaries (En, Ja)"
"2 tables; 4 fig.; 6 ref."