Antimicrobial Properties of Teas and Their Extracts in vitro

Abstract

Tea has recently received the attention of pharmaceutical and scientific communities due to the plethora of natural therapeutic compounds. As a result, numerous researches have been published in a bid to validate their biological activity. Moreover, major attention has been drawn to antimicrobial activities of tea. Being rich in phenolic compounds, tea has the preventive potential for colon, esophageal, and lung cancers, as well as urinary infections and dental caries, among others. The venture of this review was to illustrate the emerging findings on the antimicrobial properties of different teas and tea extracts, which have been obtained from several in vitro studies investigating the effects of these extracts against different microorganisms. Resistance to antimicrobial agents has become an increasingly important and urgent global problem. The extracts of tea origin as antimicrobial agents with new mechanisms of resistance would serve an alternative way of antimicrobial chemotherapy targeting the inhibition of microbial growth and the spread of antibiotic resistance with potential use in pharmaceutical, cosmetic, and food industries.

Effect of solvent type on antioxidant activities and protective capacity on HUVEC cells from damage induced by Na 2 S 2 O 3 of Jiuqu Hongmei tea extracts

“…The benefits of tea and tea extracts have been evidenced by a great quantity of studies in the past decades (Yang, Wang, & Sheridan, ). The phytochemicals present in black tea have shown a wide range of biological and pharmaceutical benefits, including prevention of obesity (Park et al, ), depressive symptoms (Li et al, ), cancer (Konarikova et al, ), cardiovascular diseases (CVDs) (Bohn et al, ), and also black tea extracts possess antioxidative (Fernando & Soysa, ), antimicrobial (Siddiqui et al, ), immune‐stimulatory (Hendricks & Pool, ), and neuroprotective activities (Bastianetto, Yao, Papadopoulos, & Quirion, ). Jiuqu Hongmei tea belongs to black tea, which is produced in Hangzhou, China.…”

“…antimicrobial (Siddiqui et al, 2016), immune-stimulatory (Hendricks & Pool, 2010), and neuroprotective activities (Bastianetto, Yao, Papadopoulos, & Quirion, 2006). Jiuqu Hongmei tea belongs to black tea, which is produced in Hangzhou, China.…”

Molecular Insight into Affinities of Gallated and Nongallated Proanthocyanidins Dimers to Lipid Bilayers

“…Proanthocyanidins (PAs) are a group of polyphenolic compounds with a broad range of health-promoting effects, such as anticarcinogenic, antimicrobial, antioxidant, anti-hyperlipidemia and anti-inflammatory activity1234. However, the biological activity of PAs differs greatly due to the difference in structure.…”

Fermentasyon Süresinin Kombu Çayı Mikrobiyotası ve Canlılık Oranları Üzerine Etkileri

“…İnkübasyon sonunda tüm mikroorganizmalar için koloniler değerlendirilmiş ve sonuçlar "log kob/mL" şeklinde ifade edilmiştir. [60][61][62][63]. Aynı zamanda fenolik bileşikler oksidasyonla yapraklardaki renk değişiminden sorumlu olan yeni bileşiklere dönüşmektedir [64].…”