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Antimutagenic effect of Kenyan Tea cultivars in a bacterial test system

Wachira, Francis N.; Karori, Mbuthia; Ngure, Raphael; Mireji, Paul; Wachira, Sabina (2014)

The antimutagenic effects of the aqueous tea extracts from Kenyan black, green and purple cultivars were evaluated by the Ames test using Salmonella typhimurium tester strains TA 1538. Results obtained showed that tea had ...
Attenuation of t-Butylhydroperoxide induced oxidative stress in HEK 293 WT cells by tea catechins and anthocyanins

Wachira, Francis N.; Kerio, L. C.; Bend, J. R.; Wanyoko, J. K.; Rotich, M. K. (Academic Journals, 2011-12-31)

The health promoting properties of catechins and anthocyanins have been of great interest to researchers in the recent past due to their significant in vitro and in vivo antioxidant activities. Most research on anthocyanins ...
Characterization of anthocyanins in Kenyan teas: Extraction and identification

Wachira, Francis N.; Kerio, L. C.; Wanyoko, J. K.; Rotich, M. K. (Elsevier, 2012-03)

Characterization and quantification of anthocyanins in selected tea cultivars processed into black (aerated) and green (unaerated) tea products was carried out in this study. The anthocyanins were extracted from tea products ...
Kenyan purple tea anthocyanins ability to cross the blood brain barrier and reinforce brain antioxidant capacity in mice.

Wachira, Francis N.; Rashid, K.; Nyabuga, J. N.; Wanyonyi, B.; Murilla, G.; Isaac, A. O. (Maney Publishing, 2014)

Studies on antioxidants as neuroprotective agents have been hampered by the impermeability of the blood brain barrier (BBB) to many compounds. However, previous studies have shown that a group of tea flavonoids, the ...
Polyphenolic composition and antioxidant activity of Kenyan Tea cultivar

Wachira, Francis N.; Karori, S. M.; Ngure, R. M.; Mireji, P. O. (AkiNik Publications, 2014)

Polyphenolic fractions in tea are potent bioactive molecules. In this study, the polyphenolic composition of 25 different types of Kenyan tea cultivars was determined using the HPLC and the Folin’s-Ciocalteu spectrophotometric ...
Tea ( Camellia sinensis ) infusions ameliorate cancer in 4TI metastatic breast cancer model

Mbuthia, Karori S.; Mireji, Paul O.; Ngure, Raphael M.; Stomeo, Francesca; Kyallo, Martina; Muoki, Chalo; Wachira, Francis N. (BioMed Central, 2017)

Background: Tea ( Camellia sinensis ) infusions are widely consumed beverages with numerous health benefits. However, physiological and molecular responses mediating these activities are poorly understood. Method: Three ...

Browsing by Subject "Anthocyanins"

Browsing by Subject "Anthocyanins"

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