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J Sci Food Agric. 2017 Nov;97(14):4679-4689. doi: 10.1002/jsfa.8472. Epub 2017 Jul 27.

The synergistic potential of various teas, herbs and therapeutic drugs in health improvement: a review.

Author information

1
Department Life and Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Florida, South Africa.
2
Phytomedicine Programme, Department of Paraclinical Sciences, University of Pretoria, Pretoria, South Africa.
3
Department of Agriculture and Animal Health, College of Agriculture and Environmental Sciences, University of South Africa, Florida, South Africa.

Abstract

Tea is one of the most widely consumed non-alcoholic beverages in the world next to water. It is classified as Camellia sinensis and non-Camellia sinensis (herbal teas). The common bioactive compounds found mainly in green teas are flavan-3-ols (catechins) (also called flavanols), proanthocyanidins (tannins) and flavonols. Black tea contains theaflavins and thearubigins and white tea contains l-theanine and gamma-aminobutyric acid (GABA), while herbal teas contain diverse polyphenols. Phytochemicals in tea exhibit antimicrobial, anti-diabetic and anti-cancer activities that are perceived to be helpful in managing chronic diseases linked to lifestyle. Many of these phytochemicals are reported to be biologically active when combined. Knowledge of the synergistic interactions of tea with other teas or herbs in terms of biological activities will be of benefit for therapeutic enhancement. There is evidence that various types of teas act synergistically in exhibiting health benefits to humans, improving consumer acceptance and economic value. Similar observations have been made when teas and herbs or medicinal drugs were combined. The aim of this review is to highlight potential beneficial synergies between combinations of different types of teas, tea and herbs, and tea and medicinal drugs.

KEYWORDS:

anti-cancer; antimicrobial; antioxidant; sensory evaluation; synergy

PMID:
28585285
DOI:
10.1002/jsfa.8472
[Indexed for MEDLINE]

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