Characteristics of oxidative reactions of condensed tannins and related polyphenols.
Project/Area Number |
21780168
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Wood science
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Research Institution | Forestry and Forest Products Research Institute |
Principal Investigator |
HASHIDA Kou 独立行政法人森林総合研究所, バイオマス化学研究領域, 主任研究員 (40353809)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
Keywords | 抽出成分 / 微量成分 / 樹木タンニン類 / 酸化 / ピロガロール / プロピルアミン / アミノ化 / フラバノール / 求核反応 |
Research Abstract |
To clarify the characteristics of oxidative reactions of condensed tannins, reaction behaviors of condensed tannins and related polyphenols with n^-propylamine were studied. By the investigations using polyphenolic model compounds, monomeric and dimeric flavanols and natural condensed tannnins, it was revealed that the pyrogaloll nucleus reacts with n^-propylamine in the presence of molecular oxygen to form aminated products. In contrast, the catechol nucleus did not cause a clear amination with n^-propylamine.
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Report
(4 results)
Research Products
(8 results)