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| HAMDEN,KHALED; CARREA U,SERGE; AYADI MARKI,FATMA; MASMOUDI,HATEM; EL FEKI,ABDELFATTAH. |
| Cadmium (Cd) is a highly toxic environmental and industrial cumulative pollutant that affeets many organs, especially the liver. The present study was designed to evalúate the antioxidant effect of green tea on cadmium-induced hepatic dysfunction and oxidative stress in rats. Adult male Wistar rats were administered cadmium by injection of 20 emoles /kg bw/ every 3 days for six months. This study revealed significant (p < 0.05) liver dysfunction, lipid peroxidation and a decline in antioxidant enzyme activities in the liver of cadmium-treated rats compared to control animáis. Compared to control rats, the activities of lactate dehydrogenase (LDH), gammaglutamyl transferase (GGT), acid phosphatase (PAC), phosphatase alkaline (PAL), as well as bilirubin... |
| Tipo: Journal article |
Palavras-chave: Cadmium; Rat liver dysfunction; Green tea; Antioxidant enzymes; Lipid peroxidation. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000300009 |
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| Almeida,Tânia Santos de; Araújo,Maria Eduarda Machado; Rodríguez,Lucía González; Júlio,Ana; Mendes,Beatriz Garcia; Santos,Rui Miguel Borges dos; Simões,José Artur Martinho. |
| The influence of common tea preparation procedures (temperature, infusion time, consumption time interval and tea bag/loose-leaf) and the type of water used, on the total phenolic content (TPC), the radical scavenging activity and the α-glucosidase inhibitory activity were assessed. Higher TPC and antioxidant activity were obtained when using lower mineralized waters. Tea bags also evidenced higher antioxidant activity than loose-leaf samples. Under the same conditions (90 ºC and five minutes of infusion time) green tea contains almost twice the quantity of polyphenols and the free radical scavenging ability of black tea. In the α-glucosidase assay all infusions were active (97-100 %). Furthermore, HPLC allowed to identify some of the polyphenols present... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Black tea; Green tea; Antioxidant activity; Α-Glucosidase activity; Water mineralization. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100529 |
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| Kodama,Débora Harumi; Gonçalves,Any Elisa de Souza Schmidt; Lajolo,Franco Maria; Genovese,Maria Inés. |
| The potential health benefits attributed to green tea and its catechins such as antioxidant effects, cancer chemoprevention, and weight loss have led to a huge increase of green tea products in the food market. The objectives of this work were to analyze and compare these products in terms of phenolic contents and in vitro antioxidant capacity including tea bags, dehydrated leaves, and ready-to-drink preparations after standardization of the infusion preparation procedure. Total phenolics content in 1 cup of the different teas varied from 90 to 341 mg of catechin equivalents, and the highest and the lowest values were both those of the ready-to-drink products. Infusions prepared from tea bags had contents varying from 96 to 201 mg.200 mL-1, and there were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant capacity; Catechins; Total phenolics; Green tea. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000400037 |
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| Menezes,Joyce Castro de; Borges,Gabriela Borba Vilela; Gomes,Fátima de Cássia Oliveira; Vieira,Mariana de Lourdes Almeida; Marques,Andréa Rodrigues; Machado,Ana Maria de Resende. |
| ABSTRACT: The interest in the use of green tea (Camellia sinensis) (L.) Kuntze (Theaceae) products have increased in the last few years due to its medicinal properties. In the present study, we proposed that headspace solid phase microextraction, in combination with gas chromatography coupled to mass spectrometric could be an efficient method to assess the volatile compounds and to ensure the quality control of C. sinensis. We have also compared the anatomical leaf of different commercial green tea samples, analyzed the information in their labels and determined the presence of foreign materials, moisture content, total ashes and microorganisms. Among the 30 analyzed samples, six were identified as C. sinensis according to the anatomical study; 83.4% were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Green tea; GC-MS; SPME; Quality control. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000300751 |
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| Neves,Ana Luiza de Almeida; Komesu,Marilena Chinali; Di Matteo,Miguel Angel Sala. |
| Green tea, a product from Camellia sinensis, consists of over 200 componentes. The most known are the catechins, ou polyphenolic compounds, or flavonoids, but it contains also polysacharide conjugates, amino acids, caffeine and vitamins. Studies have suggested that the regular consumption of green tea reduces the risk of cancer, protecting agains initial events and progression of the disease, may act as antioxidant, has bactericidal properties, and that green tea consumption may be an adjuvant in the treatment of diabetes mellitus, hypertension and hypercholesterolemia. Our experimental study was carried out with male Wistar rats, separated in two groups, experimental and control. The animals in control group were given water ad libitum, and the animals in... |
| Tipo: Journal article |
Palavras-chave: Green tea; Wound healing; Wistar Rat. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300039 |
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| Aemiro, Ashagrie; Hanada, Masaaki; Umetsu, Kazutaka; Nishida, Takehiro. |
| Sunphenon 30S-O is obtained from the leaves of traceable green tea (Camellia sinensis) and standardized for its catechin content (205 g/kg DM). This experiment was conducted to evaluate the effect of supplementation with different concentrations of Sunphenon 30S-O on methane emissions, nutrient intake, digestibility, protozoa abundance and the concentrations of volatile fatty acids (VFA) and ammonia-N (NH3-N) in sheep. Four Corriedale wethers with an average body weight of 64.25 +/- 3.86 kg were arranged in a 4 x 4 Latin square and fed a basal diet of Guinea grass (Panicum maximum) hay at the maintenance level with four different concentrations of Sunphenon 30S-O (0, 10, 25 and 40 g/Kg DM intake). The experiment was conducted over 84 days in four 21-day... |
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Palavras-chave: Methane emission; Nutrient digestibility; Green tea. |
| Ano: 2016 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4459 |
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