Tea - Chemistry
Research News and Information

Sunday, November 22, 2009

Black-tea polyphenols suppress postprandial hypertriacylglycerolemia by suppressing lymphatic transport of dietary fat in rats.

10 Aug 2009 Administration of black-tea polyphenols (BTP) at 100 and 200 mg/kg of body weight in rats suppressed postprandial hypertriacylglycerolemia in a dose-dependent manner. Administration of BTP also suppressed lymphatic recovery of ... Read more...

Bioavailability of C-linked dihydrochalcone and flavanone glucosides in humans following ingestion of unfermented and fermented rooibos teas.

10 Aug 2009 High-performance liquid chromatography-mass spectrometry (HPLC-MS(n)) detected aspalathin and nothofagin, C-glycosides of apigenin and luteolin, and four eriodictyol-C-glycoside isomers in unfermented and fermented rooibos teas. The fermented drink ... Read more...

Study of the photodynamic effect on the A549 cell line by atomic force microscopy and the influence of green tea extract on the production of reactive oxygen species.

30 Jul 2009 We studied the morphology of the A549 cell line (human lung carcinoma cells) before and after photodynamic therapy (PDT) by atomic force microscopy. PDT was induced by an efficient light-emitting diode source with total light dose of 15 J cm(-2) in ... Read more...

Latest indexed articles for 'Tea - Chemistry'

These are the very latest articles for this heading:

• Therapeutic use of tea derivatives: all that glitters is not gold. 8 Sep 2009
• Black-tea polyphenols suppress postprandial hypertriacylglycerolemia by suppressing lymphatic transport of dietary fat in rats. 10 Aug 2009
• Bioavailability of C-linked dihydrochalcone and flavanone glucosides in humans following ingestion of unfermented and fermented rooibos teas. 10 Aug 2009
• Study of the photodynamic effect on the A549 cell line by atomic force microscopy and the influence of green tea extract on the production of reactive oxygen species. 30 Jul 2009
• Green tea catechin controls apoptosis in colon cancer cells by attenuation of H2O2-stimulated COX-2 expression via the AMPK signaling pathway at low-dose H2O2. 30 Jul 2009
• Inhibitory effects of green tea catechin on the lipid accumulation in 3T3-L1 adipocytes. 30 Jul 2009
• (-)-Epigallocatechin-3-gallate (EGCG) sensitizes melanoma cells to interferon induced growth inhibition in a mouse model of human melanoma. 25 Jul 2009
• Thermal effects on the stability and antioxidant activity of an acid polysaccharide conjugate derived from green tea. 6 Jul 2009
• Online gas chromatography combustion/pyrolysis-isotope ratio mass spectrometry (HRGC-C/P-IRMS) of (+/-)-Dihydroactinidiolide from tea ( Camellia sinensis ) and rooibos tea ( Aspalathus linearis ). 6 Jul 2009
• Increase of theaflavin gallates and thearubigins by acceleration of catechin oxidation in a new fermented tea product obtained by the tea-rolling processing of loquat ( Eriobotrya japonica ) and green tea leaves. 6 Jul 2009
• Comparison of effects of green tea catechins on apicomplexan hexose transporters and mammalian orthologues. Jul 2009
• [Antioxidant reactions and activities of teas and wines by the cumene hydroperoxide/hemoglobin * methylene blue method] 29 Jun 2009
• Catechin and catechin fractions as biochemical markers to study the diversity of Indian tea (Camellia sinensis (L.) O. Kuntze) germplasm. 29 Jun 2009
• Fast GC-FID based metabolic fingerprinting of Japanese green tea leaf for its quality ranking prediction. 29 Jun 2009
• New life for an "old" drink. 29 Jun 2009
• Pu-erh tea attenuates hyperlipogenesis and induces hepatoma cells growth arrest through activating AMP-activated protein kinase (AMPK) in human HepG2 cells. 22 Jun 2009
• FT-IR methodology for quality control of arabinogalactan protein (AGP) extracted from green tea (Camellia sinensis ). 22 Jun 2009
• Solution structure of human cardiac troponin C in complex with the green tea polyphenol, (-)-epigallocatechin 3-gallate. 18 Jun 2009
• Simultaneous coprecipitation of lead, cobalt, copper, cadmium, iron and nickel in food samples with zirconium(IV) hydroxide prior to their flame atomic absorption spectrometric determination. 14 Jun 2009
• (-)-Epigallocatechin gallate enhances the expression of genes related to insulin sensitivity and adipocyte differentiation in 3T3-L1 adipocytes at an early stage of differentiation. 14 Jun 2009

See a longer list of these articles.

Technical information about 'Tea'

Definition: The infusion of leaves of CAMELLIA SINENSIS (formerly Thea sinensis) as a beverage, the familiar Oriental tea, which contains CATECHIN (especially epigallocatechin gallate) and CAFFEINE.

Registry Number: 0

Descriptor UI: D013662

Alternative terms: Tea;

Related Mesh Headings: Theophylline; Camellia sinensis;

Allowable Qualifiers: adverse effects; anatomy & histology; classification; cytology; drug effects; embryology; enzymology; genetics; growth & development; immunology; metabolism; microbiology; parasitology; physiology; poisoning; radiation effects; toxicity; ultrastructure; chemistry; virology; economics; history; standards; supply & distribution;

Tree Number: D20.215.784.875; J02.200.900;

History Note: 66

Technical Notes: restrict to drink prepared from tea plant, CAMELLIA SINENSIS (formerly Thea sinensis); "teas" from other plants go under plant term (IM) + BEVERAGES (IM)