テアフラビン

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H302：飲み込むと有害

• 注意書き

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

テアフラビン 価格

テアフラビン 化学特性,用途語,生産方法

• 外観

  赤色～褐色, 結晶性粉末～粉末

• 溶解性

  水、エタノール及びアセトンに溶ける。

• 用途

  ポリフェノール生理活性研究用。

• 使用上の注意

  不活性ガス封入

• 説明

  Theaflavins are a group of polyphenol pigments found in both black and oolong teas. They are obtained by the oxidation and dimerization of green tea catechins during the manufacture of black tea and oolong tea. Theaflavins contribute to the characteristic bright orange-red color of black tea. Theaflavins include theaflavin, theaflavin-3-gallate, theaflavin-3'-gallate and theaflavin-3,3'-digallate.
  Theaflavins are used to manage cholesterol and used to support the heart and digestive system. They could be used as protective agents against cardiovascular disease and cancer. It is also believed that they have a wide range of other pharmaceutical benefits, including antihypertensive, antioxidative and hypolipidemic activities. It is suggested that theaflavins have a potential to be developed as a safe and affordable topical microbicide for preventing sexual transmission of HIV.

• 化学的特性

  red to brown powder

• 定義

  ChEBI: Theaflavin is a biflavonoid that is 3,4,5-trihydroxybenzocyclohepten-6-one which is substituted at positions 1 and 8 by (2R,3R)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-2-yl groups. It is the main red pigment in black tea. It has a role as an antioxidant, a chelator, a plant metabolite, a radiation protective agent and an antibacterial agent. It is a polyphenol and a biflavonoid.

• 利点

  Theaflavin is a polyphenolic flavonoid that has been found in black tea and has diverse biological activities, including antineoplastic, antioxidant, anticancer, anti-inflammatory, cholesterol lowering and antiviral properties.

• 生物活性

  Theaflavin is a suitable natural inhibitor against influenza A (H1N1) neuraminidase.

• 参考文献

  [1] Lai Kwok Leung, Yalun Su, Ruoyun Chen, Zesheng Zhang, Yu Huang, Zhen-Yu Chen (2001) Theaflavins in Black Tea and Catechins in Green Tea Are Equally Effective, J. Nutr., 131, 2248-2251
  [2] Yang J, Li L, Tan S, Jin H, Qiu J, Mao Q, Li R, Xia C, Jiang ZH, Jiang S, Liu S (2012) A Natural Theaflavins Preparation Inhibits HIV-1 Infection by Targeting the Entry Step: Potential Applications for Preventing HIV-1 Infection, Fitoterapia, 83, 348-355
  [3] http://www.xtend-life.com/information/ingredients/theaflavins

テアフラビン 生産企業

Global(196)Suppliers

4670-05-7, テアフラビン キーワード