Incorporation of white tea extract in nano‐liposomes: optimization, characterization, and stability

2021 ◽  
Author(s):  
Elham Ahmadi ◽  
Amir Hossein Elhamirad ◽  
Nasrin Mollania ◽  
Mohammad Reza Saeidi Asl ◽  
Ahmad Pedramnia
Keyword(s):  
White Tea ◽  
Tea Extract

scholarly journals White tea (Camellia sinensis) extract reduces oxidative stress and triacylglycerols in obese mice

2012 ◽  
Vol 32 (4) ◽  
pp. 733-741 ◽  
Author(s):  
Lílian Gonçalves Teixeira ◽  
Priscilla Ceci Lages ◽  
Tatianna Lemos Jascolka ◽  
Edenil Costa Aguilar ◽  
Fabíola Lacerda Pires Soares ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Adipose Tissue ◽  
Camellia Sinensis ◽  
Reduce Food Intake ◽  
Obese Mice ◽  
White Tea ◽  
Diet Induced Obesity ◽  
Tea Extract ◽  
The Relationship

White tea is an unfermented tea made from young shoots of Camellia sinensis protected from sunlight to avoid polyphenol degradation. Although its levels of catechins are higher than those of green tea (derived from the same plant), there are no studies addressing the relationship between this tea and obesity associated with oxidative stress.The objective of this study was to evaluate the effect of white tea on obesity and its complications using a diet induced obesity model. Forty male C57BL/6 mice were fed a high-fat diet to induce obesity (Obese group) or the same diet supplemented with 0.5% white tea extract (Obese + WTE) for 8 weeks. Adipose tissue, serum lipid profile, and oxidative stress were studied. White tea supplementation was not able to reduce food intake, body weight, or visceral adiposity. Similarly, there were no changes in cholesterol rich lipoprotein profile between the groups. A reduction in blood triacylglycerols associated with increased cecal lipids was observed in the group fed the diet supplemented with white tea. White tea supplementation also reduced oxidative stress in liver and adipose tissue. In conclusion, white tea extract supplementation (0.5%) does not influence body weight or adiposity in obese mice. Its benefits are restricted to the reduction in oxidative stress associated with obesity and improvement of hypertriacylglycerolemia.

Protective effect of white tea extract against acute oxidative injury caused by adriamycin in different tissues

2012 ◽  
Vol 134 (4) ◽  
pp. 1780-1785 ◽  
Author(s):  
Cristóbal Espinosa ◽  
José Ángel López-Jiménez ◽  
Lorena Cabrera ◽  
Elvira Larqué ◽  
María Pilar Almajano ◽  
...  
Keyword(s):  
Protective Effect ◽  
Oxidative Injury ◽  
White Tea ◽  
Tea Extract ◽  
Different Tissues

Polymeric Nanoparticles Encapsulating White Tea Extract for Nutraceutical Application

2015 ◽  
Vol 63 (7) ◽  
pp. 2026-2032 ◽  
Author(s):  
Vanna Sanna ◽  
Giuseppe Lubinu ◽  
Pierluigi Madau ◽  
Nicolino Pala ◽  
Salvatore Nurra ◽  
...  
Keyword(s):  
Polymeric Nanoparticles ◽  
White Tea ◽  
Tea Extract

scholarly journals The antiplaque efficacy of white tea extract mouthrinse

2016 ◽  
Vol 20 (5) ◽  
pp. 514
Author(s):  
ChiragJaverchand Mehta ◽  
DipikaKalyan Mitra ◽  
PalakMahendra Shah ◽  
HemangHarshad Shah ◽  
SilviaVictor Rodrigues
Keyword(s):  
White Tea ◽  
Tea Extract

scholarly journals In vitro and in vivo evaluation of silver needle white tea extract against colon cancer

2020 ◽  
Author(s):  
Fatemeh Hajiaghaalipour ◽  
Elham Bagheri ◽  
Elham Rouhollahi ◽  
Nur'ain Salehen ◽  
Mahmood Ameen Abdulla
Keyword(s):  
Colon Cancer ◽  
In Vivo Evaluation ◽  
White Tea ◽  
Tea Extract

Abstract The authors have withdrawn this preprint due to author disagreement.

scholarly journals AKTIVITAS ANTIJAMUR EKSTRAK TEH PUTIH (CAMELIA SINENSIS) TERHADAP JAMUR CANDIDA ALBICANS (Antifungal Activity of White Tea Extract to Candida albicans)

2016 ◽  
Vol 10 (2) ◽  
pp. 7-15 ◽  
Author(s):  
Asri Widyasanti ◽  
◽  
David Marpaung ◽  
Sarifah Nurjanah ◽  
◽  
...  
Keyword(s):  
Candida Albicans ◽  
Antifungal Activity ◽  
White Tea ◽  
Tea Extract

scholarly journals Antibacteririal avtivities of Bacillus cereus and Shigella dysenteriae of white tea extract in several variation of solvents

2016 ◽  
Vol 19 (1) ◽  
Author(s):  
Asri Widyasanti ◽  
Andita Mega Priantiwi ◽  
Dadan Rohdiana
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Bacillus Cereus ◽  
Bacterial Growth ◽  
Shigella Dysenteriae ◽  
White Tea ◽  
Gram Positive Bacteria ◽  
Total Growth ◽  
Antibacterial Material ◽  
Tea Extract

Tea is used in the food, cosmetic, and herbal drug industries. White tea is a kind of tea containing a relatively high polyphenol content compared to other kind of tea, and thus has the potential of being used as a natural antibacterial. The objective of this research was to study the antibacterial activity of of  white tea extract in several variation of  13 % (w/v) concentration of solvents to the activity of gram-positive bacteria (Bacillus cereus) and Gram-negative bacteria (Shigella dysenteriae). Laboratorium experimental method was used in this descriptive study. The antibacterial activity study was comprised of estimating inhibition area and total of bacterial growth. The results revealed that white tea extract inhibited bacterial growth, indicating that white tea extract from the n-hexane, ethyl acetate and 96% ethanol solvents could be developed as an antibacterial material. The diameter of the inhibition area to Bacillus cereus bacteria for n - hexane , ethyl acetate, and  ethanol 13 % (w/ v)  solvents were 0.6 mm, 10.5 mm and 1.75 mm, respectively; while for Shigella dysenteriae bacteria were 0,5 mm, 9,86 mm  and 10,6 mm, respectively. The total growth of Bacillus cereus bacteria for n-hexane, ethyl acetate, and ethanol 13 % (w/v) solvent were 1.3 x 10<sup>7</sup>, 6.0 x 10<sup>6</sup>, and  1.1 x 10<sup>4</sup> CFU / ml , and of Shigella dysenteriae bacteria were  1.0 x 10<sup>7, </sup> 6.5 x 10<sup>6</sup> and 4.6 x 10<sup>6 </sup>CFU / ml, respectively.

scholarly journals Development of white tea extract as green corrosion inhibitor in mild steel under 1 M hydrochloric acid solution

2021 ◽  
Vol 2 (6 (110)) ◽  
pp. 6-20
Author(s):  
Agus Paul Setiawan Kaban ◽  
Aga Ridhova ◽  
Gadang Priyotomo ◽  
Berna Elya ◽  
Ahmad Maksum ◽  
...  
Keyword(s):  
Surface Modification ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Group Identification ◽  
Total Phenolic ◽  
White Tea ◽  
Green Corrosion Inhibitor ◽  
Tea Extract

This work covers the effectiveness of the White tea extract as a green corrosion inhibitor and is correlated to the strength and stability bonding between the phenolic molecule and the Fe atoms in mild steel and how this interaction can be studied by altering the concentration and temperature. White tea has received considerable attention due to its capability as a corrosion inhibitor and has been extensively studied using electrochemical techniques. However, accurate and systematic functional group identification and surface modification have been missing. Our study sought to demonstrate the quantitative measurement of electrochemical impedance spectroscopy (EIS) complemented by the FTIR (Fourier transform infrared spectroscopy), Total Phenolic Test, and Raman Spectroscopy. The SEM (Scanning Electronic Microscope)/EDX (Energy-Dispersive X-Ray Spectroscopy), and AFM (Atomic Force Microscope) were used to study the surface modification. The EIS results show that the optimum inhibition efficiency was 96 % in a solution of 80 ppm at 60 °C. Acetone 70 % was used to extract White tea and gives 14.17±0.25 % phenolic compound. Spectroscopic studies show -OH, Aromatic C=C, C=O and C-O-C become major contributors in the adsorption process and are found on the surface of metals as corrosion protection. Meanwhile, the thermodynamic calculation shows the White tea was adsorbed chemically. The nearness of R2 to 1 shows the adsorption agrees with the Langmuir adsorption isotherm. Eventually, the surface modification revealed that phenol molecules are responsible to reduce the corrosion rate at 16.38×10-3 mpy. Our results are expected to provide a guideline for future research in White tea as a green corrosion inhibitor

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