نتایج جستجو برای: theaflavin

تعداد نتایج: 200  

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2000
C W Boone G D Stoner J V Bacus V Kagan M A Morse G J Kelloff J W Bacus

The objective of the study was to compare three methods of monitoring the inhibition by dietary theaflavins of N-nitrosomethylbenzylamine (NMBA)-induced rat esophageal intraepithelial neoplasia: the mean tile grade, measured by computer-assisted quantitative image tile analysis; tumor multiplicity; and mean tumor size. A "tile" is defined as a small portion of a microscopic image at x 40, 87 x ...

Journal: :The American journal of clinical nutrition 2005
Véronique Cheynier

Dietary polyphenols show a great diversity of structures, ranging from rather simple molecules (monomers and oligomers) to polymers. Higher-molecular-weight structures (with molecular weights of > 500) are usually designated as tannins, which refers to their ability to interact with proteins. Among them, condensed tannins (proanthocyanidins) are particularly important because of their wide dist...

Journal: :علوم باغبانی 0
شیوا روفی گری حقیقت احمد شیرین فکر کلثوم چراغی

in this study, the effects of different types of hand plucking were studied on green leaf yield and black tea quality. bud and a leaf, bud and two leaves, bud and three leaves and bud and four leaves were the types of hand plucking. plucking was down on chine’s hybrid tea and clone 100 in fuman tea research station. shoots were plucked in flashing period regularly during three years. green leaf...

Journal: :Phytotherapy research : PTR 2002
Michiyo Tomita Kara I Irwin Zi-Jian Xie Thomas J Santoro

Tea pigments are oxidized products of polyphenols derived from tea leaves (Camellia sinensis). Theaflavins are constituents of tea pigments with antioxidant, antineoplastic and antiinflammatory properties similar to their parent compounds. The biological properties of polyphenols and theaflavins have been linked to their capacity to inhibit the activation of nuclear factor-kappaB (NF-kappaB), a...

2014
Cheng Peng Xiaobo Wang Jingnan Chen Rui Jiao Lijun Wang Yuk Man Li Yuanyuan Zuo Yuwei Liu Lin Lei Ka Ying Ma Yu Huang Zhen-Yu Chen

Interest in relationship between diet and ageing is growing. Research has shown that dietary calorie restriction and some antioxidants extend lifespan in various ageing models. On the one hand, oxygen is essential to aerobic organisms because it is a final electron acceptor in mitochondria. On the other hand, oxygen is harmful because it can continuously generate reactive oxygen species (ROS), ...

Journal: :Jurnal kedokteran Raflesia 2021

Latar Belakang: Minyak jelantah atau minyak goreng bekas adalah yang digunakan secara berulang tanpa penambahan baru. Pemakaian kali dapat merusak struktur kimia dan menghasilkan radikal bebas. Hasil dari proses tersebut senyawa toksik seperti hidroperoksida. Teh mengandung enam kelompok bioflavanoid catechins, theaflavins, the arubigins, oxyaromatic acids, flavonols, flavones, derivac gallic a...

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