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University of the Ryukyus Repository >
Faculty of Agriculture >
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The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus >
No.30 (1983/11) >
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| Title | : | 第 8 報 貯蔵による茶葉のビタミン C の変化(茶に関する研究)(農芸化学科) |
| Title alternative | : | Part VIII The change of ascorbic acid content in tea leaves during storage (Studies on Tea) (Department of Agricultural Chemistry) |
| Authors | : | 仲村, 実久
大城, 邦保 |
| Authors alternative | : | Nakamura, Sanehisa
Ohshiro, Kuniyasu |
| Issue Date | : | 19-Nov-1983 |
| Abstract | : | 茶葉貯蔵中のビタミンCの変化を調べた。茶葉を5,20および30℃に貯蔵するとビタミンCの残存率は低温貯蔵の場合が高かった。茶葉の損傷によりビタミンCの酸分解が促進されることがわかった。茶葉を凍結し, 解凍後ビタミンCが著しく酸化分解されることがわかった。
Ascorbic acid in plucked tea leaves was decomposed to dehydroascorbic acid during storage. The content of ascorbic acid in tea leaves decreased to about 82 and 69% after five days storage at 5 and 30℃, respectively. However, in stored leaves at 5℃, about 76% of initial content of ascorbic acid was remained after 10 days storage. In defrosted tea leaves, the decomposition of ascorbic acid was observed. |
| Type Local | : | 紀要論文 |
| ISSN | : | 0370-4246 |
| Publisher | : | 琉球大学農学部 |
| URI | : | http://hdl.handle.net/20.500.12000/3997 |
| Citation | : | 琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus no.30 p.231 -233 |
| Appears in Collections | : | No.30 (1983/11)
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