Epicatechin is a polyphenolic catechin found in green tea leaves that has been shown to have antioxidant and anti-inflammatory properties. The current study will employ UV-visible spectrometry to quantify the levels of epicatechin in different green tea brands including an iced tea Japanese green tea, Stash green tea, Lipton mint green tea, Tetley green tea, and Arizona green tea with honey and ginseng. The study will employ random sampling to select the samples from the supermarket and one sample will used as a representative for each brand. All samples will be purchased from the same location. Calibration with external standards will be employed and used to generate a calibration curve. Five standard solutions with increasing concentratio...
Tea, second only to water, is the most widely consumed beverage in the world and is obtained from th...
An HPLC method with gradient elution for the quantification of catechins ((−)-epigallocatechin (EGC)...
Marketed green teas (GTs) can highly vary in their chemical composition, due to different origins, p...
Epicatechin is a type of natural phenol and antioxidant, and it is a secondary metabolite found in g...
Tea has been considered a medicine and a healthy beverage since ancient times, but recently it has r...
Green tea is consumed as a beverage worldwide and has beneficial effects, such as a lower risk of ca...
Liquid chromatographic methods with UV and fluorescence detection have been used to determine the le...
Background: Tea is a refreshing drink that contains polyphenol compounds, namely catechins that are ...
The objective of this study was to determine the relationship between the plucking periods and the m...
HPLC-FTIR was investigated for the qualitative determination of catechins and methyl xanthines prese...
In the present study, twelve different types of commercial tea samples were assayed to determine the...
A comprehensive study on the composition and antioxidant properties of black tea samples with a chem...
Tea and mainly green tea as a rich source of antioxidants has been widely known for some time. The ...
Polyphenols in tea or often referred to as catechins are different substances with catechins contain...
This work monitors flavonoid pigments (theaflavins and thearubigins), and chlorophyll in green teas...
Tea, second only to water, is the most widely consumed beverage in the world and is obtained from th...
An HPLC method with gradient elution for the quantification of catechins ((−)-epigallocatechin (EGC)...
Marketed green teas (GTs) can highly vary in their chemical composition, due to different origins, p...
Epicatechin is a type of natural phenol and antioxidant, and it is a secondary metabolite found in g...
Tea has been considered a medicine and a healthy beverage since ancient times, but recently it has r...
Green tea is consumed as a beverage worldwide and has beneficial effects, such as a lower risk of ca...
Liquid chromatographic methods with UV and fluorescence detection have been used to determine the le...
Background: Tea is a refreshing drink that contains polyphenol compounds, namely catechins that are ...
The objective of this study was to determine the relationship between the plucking periods and the m...
HPLC-FTIR was investigated for the qualitative determination of catechins and methyl xanthines prese...
In the present study, twelve different types of commercial tea samples were assayed to determine the...
A comprehensive study on the composition and antioxidant properties of black tea samples with a chem...
Tea and mainly green tea as a rich source of antioxidants has been widely known for some time. The ...
Polyphenols in tea or often referred to as catechins are different substances with catechins contain...
This work monitors flavonoid pigments (theaflavins and thearubigins), and chlorophyll in green teas...
Tea, second only to water, is the most widely consumed beverage in the world and is obtained from th...
An HPLC method with gradient elution for the quantification of catechins ((−)-epigallocatechin (EGC)...
Marketed green teas (GTs) can highly vary in their chemical composition, due to different origins, p...