Effect of selenium on increasing the antioxidant activity of tea leaves harvested during the early spring tea producing season

J Xu, F Yang, L Chen, Y Hu, Q Hu - Journal of Agricultural and …, 2003 - ACS Publications
This research was to determine the effect of foliar application of selenium on increasing the
antioxidant activity of tea harvested during the early spring tea producing season using a α …

The influence of selenium on the antioxidant activity of green tea

J Xu, S Zhu, F Yang, L Cheng, Y Hu… - Journal of the …, 2003 - Wiley Online Library
This study was aimed at determining the effects of selenium on the contents of vitamin C,
amino acid, total water‐soluble solids and tea polyphenol, and whether the antioxidant …

Antioxidant activities of crude tea polyphenols, polysaccharides and proteins of selenium-enriched tea and regular green tea

F Yu, J Sheng, J Xu, X An, Q Hu - European Food Research and …, 2007 - Springer
The crude tea polyphenols, polysaccharides and proteins of regular green tea and Se-
enriched green tea were investigated in vitro for antioxidant activities by auto-oxidation test …

Effect of selenium on preservation quality of green tea during autumn tea-processing season

Y Huang, J Xu, Q Hu - Journal of agricultural and food chemistry, 2005 - ACS Publications
Selenium-enriched green tea leaves were prepared by foliar applications of selenium-
amended fertilizer during autumn season. The influence of selenium (Se) on preservation …

Investigation of antioxidant activity of selenium compounds and their mixtures with tea polyphenols

A Sentkowska, K Pyrzyńska - Molecular biology reports, 2019 - Springer
The antioxidant interactions between selenium species and tea polyphenols were
investigated using 1, 1-diphenyl-2-picryl-hydrazyl (DPPH) radicals, cupric reducing …

Effect of foliar application of selenium on the antioxidant activity of aqueous and ethanolic extracts of selenium-enriched rice

J Xu, Q Hu - Journal of Agricultural and Food Chemistry, 2004 - ACS Publications
Selenium fertilizer was foliar applied to determine the effects of antioxidant activity of
selenium-enriched rice assessed by α, α-diphenyl-β-picylhydrazyl (DPPH) radical …

Effect of consecutive steeping on antioxidant potential of green, oolong and black tea

SN Islam, S Farooq, A Sehgal - International Journal of Food …, 2018 - Wiley Online Library
After water, tea is considered to be one of the most consumed drinks worldwide. To get the
maximum benefit from the whole‐leaf teas, the manufacturers provide instruction that these …

Comparison of the antioxidant activity of rooibos tea (Aspalathus linearis) with green, oolong and black tea

A Von Gadow, E Joubert, CF Hansmann - Food chemistry, 1997 - Elsevier
The antioxidant activity of aqueous extracts of rooibos tea (unfermented, semi-fermented
and fermented) was compared with that of green, oolong and black teas. The α, α-diphenyl-β …

Total polyphenols, catechin profiles and antioxidant activity of tea products from purple leaf coloured tea cultivars

LC Kerio, FN Wachira, JK Wanyoko, MK Rotich - Food chemistry, 2013 - Elsevier
Black (aerated) and green (unaerated) tea products, processed from 10 green and 18 purple
leaf coloured cultivars of Kenyan origin, and two tea products, from the Japanese cultivars …

The effect of ascorbic acid on total antioxidant activity of black and green teas

D Majchrzak, S Mitter, I Elmadfa - Food Chemistry, 2004 - Elsevier
The beneficial effects of green and black tea are generally attributed to the antioxidant
activity of their phenolic compounds. Tea is commonly used with milk or lemon. Milk proteins …