ジャガイモ塊茎の生育および冷却貯蔵に伴うビタミンC量およびその合成酵素活性の変化

DOI NDLデジタルコレクション Web Site 被引用文献3件 参考文献12件

書誌事項

タイトル別名
  • Changes in Vitamin C Content and L-Galactonolactone Dehydrogenase Activity of Potato Tubers during Tuber Development and Cold-storage.
  • ジャガイモ カイケイ ノ セイイク オヨビ レイキャク チョゾウ ニ トモナウ ビタミン Cリョウ オヨビ ソノ ゴウセイ コウソ カッセイ ノ ヘンカ

この論文をさがす

抄録

The weight of tubers and contents of starch and vitamin C of potatoes (Solanum tuberosum L., cv. Kitaalcari, cv. Irish Cobbler) increased during tuber development and reached maximum at the end of July or at the early August. The activity of L-galactono-γ-lactone dehydrogenase (EC 1.3.2.3, GLDHase) increased during tuber development and reached maximum just before the time when vitamin C content reached the maximum value, and then decreased.<BR>When tubers of 7 cultivar varieties of potatoes including cv. Irish Cobbler, cv. Kitaalcari, cv. Tsunika, cv. Touya, cv. Hokkai 79, cv. Shimakei 575 and cv. Shimakei 571 were stored at 4°C within 10 days after the harvest at about 20°C, vitamin C contents were markedly decreased during one month after storage and then decreased gradually for 3 months by 50∼70%. When tubers were stored at 4°C, both ascorbic acid (AsA) content and GLDHase activity increased after 2 days, and decreased thereafter. The decrease in vitamin C content during cold (4°C) storage was larger than that of storage at 15°C, and GLDHase activity was higher in 4°C-storage tubers than that in 15°C-storage tubers. These results suggest that AsA is supplied by the increased GLDH ase activity when a large amount of AsA is exhausted by a strong low temperature stress.

収録刊行物

被引用文献 (3)*注記

もっと見る

参考文献 (12)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ