A Review on the Biological Activity of Camellia Species

Abstract

Medicinal plants have been used since antiquity to cure illnesses and injuries. In the last few decades, natural compounds extracted from plants have garnered the attention of scientists and the Camellia species are no exception. Several species and cultivars are widespread in Asia, namely in China, Japan, Vietnam and India, being also identified in western countries like Portugal. Tea and oil are the most valuable and appreciated Camellia subproducts extracted from Camellia sinensis and Camellia oleifera, respectively. The economic impact of these species has boosted the search for additional information about the Camellia genus. Many studies can be found in the literature reporting the health benefits of several Camellia species, namely C. sinensis, C. oleifera and Camellia japonica. These species have been highlighted as possessing antimicrobial (antibacterial, antifungal, antiviral) and antitumoral activity and as being a huge source of polyphenols such as the catechins. Particularly, epicatechin (EC), epigallocatechin (EGC), epicatechin-3-gallate (ECG), and specially epigallocatechin-3-gallate (EGCG), the major polyphenols of green tea. This paper presents a detailed review of Camellia species’ antioxidant properties and biological activity.

Exam the Synergistic Potency of Tea Leaves Extract (Camellia Sinensis) and Moringa Leaves (Moringa Oleifera) as an Inhibitor of the Growing of Some Bacteria that Cause

“…There were critical differences among all results of each tried bacteria organisms treated with the concentrates E1, E2, and E3 as control. Also, huge significant differences were founded at all tried microbes towards treatments E1, E2, and E3, Table (3 There were several works reach agreement with present study thus results by Radji et al, (2013) concluded that leave quotation for Camellia might be suitable in opposing initial drug resistance caused by MRSA and Pseudomonas aeruginosa, other investigation by Teixeira and Sousa, (2021), give highpoints for camellia spp. As a featured that has antimicrobial (antibacterial, antifungal antiviral) and antitumoral action and just like a massive basis of polyphenols like the catechins.…”

“…polyphenols of green tea underpinning properties and natural movement (Teixeira and Sousa, 2021). Moringa oleifera and Moringa stenopetala are underutilized types of tropical trees that may assume a significant part in dietary expansion and add to the mitigation of stowed away yearning in less created tropical and subtropical nations, numerous investigations propose that Moringa spp.…”

Green Synthesis of Silver Nanoparticles Using Natural Extracts with Proven Antioxidant Activity

“…In general, the greater the reduction potential, the faster the reaction rate and the production of smaller nanoparticles. The latest review of Teixeira et al [ 70 ] also highlighted the extraordinary effectiveness of Camellia species as natural antioxidants. It should be emphasized that the impressive antioxidant potency of Camellia extract is caused by the polyphenolic compounds, mainly (–)-epigallocatechin-3-gallate, (–)-epigallocatechin, (–)-epicatechin-3-gallate, and (–)-epicatechin, owing to the presence of multiple OH functional groups in their structures.…”

Maintaining the Balance of Intestinal Flora through the Diet: Effective Prevention of Illness

“…Tea polyphenols can significantly inhibit the growth of E. coli. TPs can destroy the cell structure of E. coli, increase the permeability of the cell wall, and reduce the number of E. coli [87].…”