Tea consumption and health-related quality of life in older adults
ConclusionHabitual tea consumption was associated with better HRQOL in older adults. (Source: The Journal of Nutrition, Health and Aging)
Source: The Journal of Nutrition, Health and Aging - August 25, 2016 Category: Nutrition Source Type: research
Coffee and green tea consumption in relation to brain tumor risk in a Japanese population
In conclusion, our study suggested that coffee consumption might reduce the risk of brain tumor, including that of glioma, in the Japanese population. This article is protected by copyright. All rights reserved. (Source: International Journal of Cancer)
Source: International Journal of Cancer - August 24, 2016 Category: Cancer & Oncology Authors: Takahiro Ogawa, Norie Sawada, Motoki Iwasaki, Sanjeev Budhathoki, Akihisa Hidaka, Taiki Yamaji, Taichi Shimazu, Shizuka Sasazuki, Yoshitaka Narita, Shoichiro Tsugane, Tags: Research Article Source Type: research
A comparative analysis of chemical compositions in Camellia sinensis var. puanensis Kurihara, a novel Chinese tea, by HPLC and UFLC-Q-TOF-MS/MS
Publication date: 1 February 2017 Source:Food Chemistry, Volume 216 Author(s): Yi-Fang Li, Shu-Hua Ouyang, Yi-Qun Chang, Ting-Mei Wang, Wei-Xi Li, Hai-Yan Tian, Hong Cao, Hiroshi Kurihara, Rong-Rong He Camellia sinensis var. puanensis Kurihara (Puan tea) is a kind of ancient tea plant newly found in Jiangxipo and the surrounding areas of Puan County (Guizhou, China). People there always believe that drinking Puan tea is beneficial to the promotion of health and prevention of diseases. However, detailed information on its compositions has not been reported. Therefore, in this study, the varieties and contents of ...
Source: Food Chemistry - August 24, 2016 Category: Food Science Source Type: research
Quality evaluation of green tea leaf cultured under artificial light condition using gas chromatography/mass spectrometry
Publication date: Available online 24 August 2016 Source:Journal of Bioscience and Bioengineering Author(s): Shunsuke Miyauchi, Tsutomu Yonetani, Takayuki Yuki, Ayako Tomio, Takeshi Bamba, Eiichiro Fukusaki For an experimental model to elucidate the relationship between light quality during plant culture conditions and plant quality of crops or vegetables, we cultured tea plants (Camellia sinensis) and analyzed their leaves as tea material. First, metabolic profiling of teas from a tea contest in Japan was performed with gas chromatography/mass spectrometry (GC/MS), and then a ranking predictive model was made whic...
Source: Journal of Bioscience and Bioengineering - August 24, 2016 Category: Biomedical Science Source Type: research
Molecules, Vol. 21, Pages 1106: Elucidation of Differential Accumulation of 1-Phenylethanol in Flowers and Leaves of Tea (Camellia sinensis) Plants
This study provided an example that differential distribution of some metabolites in plant tissues was not only determined by enzyme(s) in the last step of metabolite formation, but also can be due to substrate availability. (Source: Molecules)
Source: Molecules - August 22, 2016 Category: Chemistry Authors: Fang Dong Ying Zhou Lanting Zeng Qiyuan Peng Yiyong Chen Ling Zhang Xinguo Su Naoharu Watanabe Ziyin Yang Tags: Article Source Type: research
Inhibitory Effects of Eight Green Tea Catechins on Cytochrome P450 1A2, 2C9, 2D6, and 3A4 Activities.
CONCLUSION: Previous reports had predicted that plasma EGCG concentration reached 7.4 µM after ingesting green tea having high concentrations of catechins. That concentration of EGCG is equivalent to one-half to one-third of its Ki value for CYP1A2 and CYP3A4 in this study. The ingestion of beverages containing large amounts of green tea catechins together with drugs that are metabolized by CYP1A2, CYP2C9, and CYP3A4 should be avoided. This article is open to POST-PUBLICATION REVIEW. Registered readers (see "For Readers") may comment by clicking on ABSTRACT on the issue's contents page.
PMID: 27518169 [PubMed - i...
Source: Journal of Pharmacy and Pharmaceutical Sciences - August 17, 2016 Category: Drugs & Pharmacology Tags: J Pharm Pharm Sci Source Type: research
Bioavailability of chlorogenic acids in rats after acute ingestion of mat é tea ( Ilex paraguariensis ) or 5-caffeoylquinic acid
ConclusionThe study confirms that not only absorption, but also metabolization of CGAs begins in stomach. There were differences in compounds formed from mat é tea or isolated 5-CQA, showing that CGAs profile in food may influence qualitatively and quantitatively the metabolites formed in the body. (Source: European Journal of Nutrition)
Source: European Journal of Nutrition - August 16, 2016 Category: Nutrition Source Type: research
Controlled-release of tea polyphenol from gelatin films incorporated with different ratios of free/nanoencapsulated tea polyphenols into fatty food simulants
Publication date: January 2017 Source:Food Hydrocolloids, Volume 62 Author(s): Fei Liu, Roberto J. Avena-Bustillos, Bor-Sen Chiou, Yue Li, Yun Ma, Tina G. Williams, Delilah F. Wood, Tara H. McHugh, Fang Zhong Chitosan nanoparticles with different encapsulation efficiencies were incorporated to obtain gelatin films with controlled-release properties. Nanoparticles tended to aggregate as encapsulation efficiency increased, due to the increase in surface tension of film-forming solutions. The addition of nanoparticles increased the compactness and isotherm hysteresis of films, whereas decreased the moisture diffusi...
Source: Food Hydrocolloids - August 11, 2016 Category: Food Science Source Type: research
Rapid Identification and Comparison of Compounds with Antioxidant Activity in Coreopsis tinctoria Herbal Tea by High ‐Performance Thin‐Layer Chromatography Coupled with DPPH Bioautography and Densitometry
Abstract
A simple and efficient method based on high‐performance thin‐layer chromatography coupled with 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) bioautography (HPTLC‐DPPH) was established for the screening and comparison of antioxidants in different parts of Coreopsis tinctoria herbal tea from different origins and other related herbal tea materials, which used Chrysanthemum morifolium cv. “Gongju” and “Hangju” in this study. Scanning densitometry after DPPH derivatization was applied for the determination of antioxidant capacities of isolated compounds in each sample. It is considered that ethanol extracts...
Source: Journal of Food Science - August 10, 2016 Category: Food Science Authors: Shing ‐Chung Lam, Sio‐Fong Lam, Jing Zhao, Shao‐Ping Li Tags: C: Food Chemistry Source Type: research
Evaluation of transfer rates of multiple pesticides from green tea into infusion using water as pressurized liquid extraction solvent and ultra-performance liquid chromatography tandem mass spectrometry
This study helps in risk assessment of pesticide residues and in the formulation of maximum residue levels (MRLs) in tea and its by-products. (Source: Food Chemistry)
Source: Food Chemistry - August 9, 2016 Category: Food Science Source Type: research
Reduction of Hexavalent Chromium by Green Tea Polyphenols and Green Tea Nano Zero-Valent Iron (GT-nZVI).
This study reports on the direct reduction of hexavalent chromium [Cr(VI)] by green tea polyphenols, including a green tea solution and pure epigallocatechin gallate (EGCG) solution. A linear trend was observed between the amount of reduced Cr(VI) and the amount of added polyphenols. The green tea solution showed a continued decrease in the observed stoichiometry with increasing pH, from a maximum of 1.4 mol per gallic acid equivalent (GAE) of green tea at pH 2.5, to 0.2 mol/GAE at pH 8.8. The EGCG solution exhibited different behavior, with a maximum stoichiometry of 2 at pH 7 and minimum of 1.6 at pH 4.4 and 8.9. When ...
Source: Bulletin of Environmental Contamination and Toxicology - August 9, 2016 Category: Environmental Health Authors: Chrysochoou M, Reeves K Tags: Bull Environ Contam Toxicol Source Type: research
Green Tea Intake as an Adjunct to Mechanical Periodontal Therapy for the Management of Mild to Moderate Chronic Periodontitis: A Randomized Controlled Clinical Trial
Conclusion: Green tea intake as a component of nonsurgical periodontal therapy is promising for superior and rapid resolution of the disease process. Green tea increases the total antioxidant capacity of GCF and plasma along with potent anti-inflammatory, astringent and anti-plaque effects. (Source: Oral health and Preventive dentistry)
Source: Oral health and Preventive dentistry - August 9, 2016 Category: Dentistry Source Type: research
Molecular interactions between green tea catechins and cheese fat studied by solid-state nuclear magnetic resonance spectroscopy
Publication date: 15 January 2017 Source:Food Chemistry, Volume 215 Author(s): Ali Rashidinejad, Edward J. Birch, Jason Hindmarsh, David W. Everett Molecular integrations between green tea catechins and milk fat globules in a cheese matrix were investigated using solid-state magic angle spinning nuclear magnetic resonance spectroscopy. Full-fat cheeses were manufactured containing free catechin or free green tea extract (GTE), and liposomal encapsulated catechin or liposomal encapsulated GTE. Molecular mobility of the carbon species in the cheeses was measured by a wide-line separation technique. The 1H evolution fre...
Source: Food Chemistry - August 4, 2016 Category: Food Science Source Type: research
Sage tea-thyme-peppermint hydrosol oral rinse reduces chemotherapy-induced oral mucositis: A randomized controlled pilot study.
CONCLUSIONS: Sage tea-thyme-peppermint hydrosol oral rinse has promising results in alleviating oral mucositis. This hydrosol can be recommended for clinical use as it is well tolerated and cost-effective. However, further randomized controlled trials are needed to support the study.
PMID: 27515877 [PubMed - in process] (Source: Complementary Therapies in Medicine)
Source: Complementary Therapies in Medicine - July 31, 2016 Category: Complementary Medicine Authors: Mutluay Yayla E, Izgu N, Ozdemir L, Aslan Erdem S, Kartal M Tags: Complement Ther Med Source Type: research
Black tea theaflavins attenuate Porphyromonas gingivalis virulence properties, modulate gingival keratinocyte tight junction integrity and exert anti ‐inflammatory activity
ConclusionThis study provides clear evidence that black tea TFs represent promising multifunctional therapeutic agents for prevention and treatment of periodontal disease. (Source: Journal of Periodontal Research)
Source: Journal of Periodontal Research - July 31, 2016 Category: Dentistry Authors: A. Ben Lagha, D. Grenier Tags: Original Article Source Type: research
