Irradiance influences tea leaf (Camellia sinensis L.) photosynthesis and transpiration

Enterococcus faecalis is a coccal Gram-positive bacteria with facultative anaerob feature. NaOCl have been proven effective againts Enterococcus faecalis for root canal irrigation process. Green tea leaf extract (Camellia sinensis) can be chosen as an alternative solution for root canal irrigation. The purpose of this study is to determine the difference of green tea leaf extract (Camellia sinensis) and NaOCl 2.5% efficacy againts the growth of Enterococcus faecalis bacteria. This is a laboratory experimental study with “post test only group” design. The first step of the trial was done by making green tea leaf extract and then determine the lowest concentration on which the first solution become clear. The concentration that were tested are 1.5%, 2.5%, 3.5%, 4.5% and 5.5%. Based on the trial, it was found that the minimal inhibiton concentration of the green tea leaf extract was 1.5%. The anti-bacterial effect testing method was using diffusion method to differenciate inhibition zone of the green tea leaf extract solution on various concentrations that were being tested and compare it with NaOCl 2.5%. Each group was replicated three times. The obtained data was analyzed with One Way Anova test and the continued with LSD test. The result of the study is that NaOCl 2.5% have superior anti-bacterial effect againts Enterococcus faecalis compared to green tea leaf extract.

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Efficacy of green tea leaf extract (camellia sinensis) with NaOCl 2.5% againts enterococcus faecalis as an alternative solution for root canal irrigation

Journal of Dentomaxillofacial Science ◽

10.15562/jdmfs.v1i1.27 ◽

2016 ◽

Vol 1 (1) ◽

pp. 58

Author(s):

Aries C. Trilaksana ◽

Adeliana Saraswati

Keyword(s):

Enterococcus Faecalis ◽

Green Tea ◽

Camellia Sinensis ◽

Root Canal ◽

Leaf Extract ◽

Alternative Solution ◽

Canal Irrigation ◽

Root Canal Irrigation ◽

Tea Leaf ◽

Bacterial Effect

Enterococcus faecalis is a coccal Gram-positive bacteria with facultative anaerob feature. NaOCl have been proven effective againts Enterococcus faecalis for root canal irrigation process. Green tea leaf extract (Camellia sinensis) can be chosen as an alternative solution for root canal irrigation. The purpose of this study is to determine the difference of green tea leaf extract (Camellia sinensis) and NaOCl 2.5% efficacy againts the growth of Enterococcus faecalis bacteria. This is a laboratory experimental study with “post test only group” design. The first step of the trial was done by making green tea leaf extract and then determine the lowest concentration on which the first solution become clear. The concentration that were tested are 1.5%, 2.5%, 3.5%, 4.5% and 5.5%. Based on the trial, it was found that the minimal inhibiton concentration of the green tea leaf extract was 1.5%. The anti-bacterial effect testing method was using diffusion method to differenciate inhibition zone of the green tea leaf extract solution on various concentrations that were being tested and compare it with NaOCl 2.5%. Each group was replicated three times. The obtained data was analyzed with One Way Anova test and the continued with LSD test. The result of the study is that NaOCl 2.5% have superior anti-bacterial effect againts Enterococcus faecalis compared to green tea leaf extract.

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Glycosidases from tea-leaf (Camellia sinensis) and characterization of β-galactosidase

The Journal of Nutritional Biochemistry ◽

10.1016/s0955-2863(97)00019-3 ◽

1997 ◽

Vol 8 (7) ◽

pp. 378-384 ◽

Cited By ~ 8

Author(s):

Jyotsnabaran Halder ◽

Amar Bhaduri

Keyword(s):

Camellia Sinensis ◽

Tea Leaf

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Pharmacognostic and Phytochemical Standardization of White Tea Leaf (Camellia sinensis L. Kuntze) Ethanolic Extracts

Pharmacognosy Journal ◽

10.5530/pj.2017.2.37 ◽

2017 ◽

Vol 9 (2) ◽

pp. 221-226 ◽

Cited By ~ 3

Author(s):

Meiliza Ekayanti ◽

Lia Ardiana ◽

Sarah Zielda Najib ◽

Rani Sauriasari ◽

Berna Elya

Keyword(s):

Camellia Sinensis ◽

White Tea ◽

Ethanolic Extracts ◽

Tea Leaf

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Influential Study of Green Tea Leaf Extracts (Camellia sinensis L.) on Male Reproductive System of Albino Rats

10.9734/bpi/caprd/v4/14442d ◽

2021 ◽

pp. 95-104

Author(s):

Shyamal Kanti Das ◽

Soumendra Nath Karmakar

Keyword(s):

Green Tea ◽

Camellia Sinensis ◽

Reproductive System ◽

Male Reproductive System ◽

Albino Rats ◽

Leaf Extracts ◽

Tea Leaf

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FORMULATION OF LOTION FROM BLACK TEA EXTRACT (CAMELLIA SINENSIS LINNAEUS) AS SUNSCREEN

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2019v11i1.29564 ◽

2019 ◽

Vol 11 (1) ◽

pp. 205 ◽

Cited By ~ 1

Author(s):

Iyan Sopyan ◽

Riestya Dwi Permata ◽

Dolih Gozali ◽

Insan Sunan Kurniawan Syah

Keyword(s):

Camellia Sinensis ◽

Black Tea ◽

Ultraviolet Rays ◽

Tea Leaves ◽

Security Testing ◽

Black Tea Extract ◽

Emulsifying Agent ◽

Irritation Test ◽

Tea Extract ◽

Tea Leaf

Objective: The goal of the project was to explore extracts from black tea leaves (Camellia sinensis Linnaeus) to prove it can give protection against ultraviolet rays (UV) in lotion preparation.Methods: Black tea extract was made in sunscreen lotion in oil in water (O/W) type emulsion using a combination of PEG-8 and beeswax as emulsifying agent 1, and combination of cetyl alcohol, ceteth-20, and steareth-20 as emulsifying agent 2. Evaluation of lotion including phytochemical screening of black tea leaf extract, measurement of sun protecting factor (SPF) value of extract black tea leaves, measurement of SPF preparation lotion sunscreen extract black tea leaves, physical observation of preparation, qualitative preparation evaluation using thin layer chromatography (TLC) and lotion security testing have been done to ensure the quality of lotions.Results: The result exhibited the effective SPF that was different to the sunscreen lotion F1, which contained 0.03% w/v and F2 which contain of 0.04% w/v black tea leaves extract with the point of SPF is 20.31 and 24.71 respectively. Both formulas fulfilled the requirements as lotion preparations and did not irritate the skin based on an irritation test on 20 volunteers.Conclusion: Formulas F1 and F2 can be applied as a sunscreen with good physical quality and is safe for topical use in lotion preparation.

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PENETAPAN KADAR FENOL TOTAL DAN KATEKIN DAUN TEH HITAM DAN EKSTRAK ASETON TEH HITAM DARI TANAMAN CAMELLIA SINENSIS VAR. ASSAMICA

Jurnal Kimia ◽

10.24843/jchem.2020.v14.i01.p08 ◽

2020 ◽

pp. 43

Author(s):

N. L. P. V. Paramita ◽

N. P. T. W. Andari ◽

N. M. D. Andani ◽

N. M. P. Susanti

Keyword(s):

Camellia Sinensis ◽

Black Tea ◽

Acetone Extract ◽

Total Phenol ◽

Total Phenol Content ◽

Phenol Content ◽

Tea Leaves ◽

Tea Leaf ◽

Acetone Extracts

Indonesia is quite well known as one of the countries that has tea plantations and uses its own production of tea. As a tea producing country, Indonesia has been able as a tea exporter. The most tea production in Indonesia is black tea product. Black tea products are produced from species Camellia sinensis Var. Assamica which undergoes an enzymatic oxidation process to fresh tea leaves. The most phenolic compounds contained in the black tea leaf are catechins, theaflavins, and thearubigin. The purpose of this study was to determine the phenolic total and catechin content of black tea products and acetone extracts produced by D'wan Tea (DT) and Bali Cahaya Amertha (BCA) plantations which located in Tabanan district, Bali. Determination of total phenol was carried out on black tea leaf products and acetone extract using the Folin-Ciocalteu method compared with gallic acid standards. Determination of catechin content was performed on fresh (before oxidized) tea leaves, black tea leaf products, and acetone extracts using the UV-Vis Spectrophotometry method at a maximum wavelength of 257 nm. The results showed that total phenol content of D'wan Tea black tea products (SDT) and Bali Cahaya Amerta (SBCA) were 1.50 ± 0.02 % mg GAE/g dan 0.97 ± 0.02 % mg GAE/g, respectively. Results of the total phenol content of D'Awan Tea (EADT) black tea acetone extract was 6.92 ± 0.12 % mg GAE/g, while the Bali Cahaya Amerta (EABCA) black tea acetone extract was 7.38 ± 0.07 % mg GAE/g. Catechin content from fresh leaf samples of D'wan Tea (SSDT), SDT, and EADT were 15.30 ± 0.22 % mg/g, 8.37 ± 0.13 % mg/g, and 37.45 ± 0.74 % mg/g. Catechin content of fresh leaf samples of Bali Cahaya Amerta (SSBCA), SBCA, and EABCA were 14.71 ± 0.28 % mg/g, 15.16 ± 0.58 % mg/g, and 35.66 ± 0.89 % mg/g. Total phenol content of DT black tea products is greater than BCA black tea products. DT black tea products appear to have decreased catechins in processing. In the processing of black tea it is necessary to decrease catechins content due to the formation of catechin polymers, namely theaflavin and thearubigin as a determinant of the quality of black tea. Keywords: black tea, Camellia Sinensis, cathecin, total phenol.

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