Camellia Green Tea Research Paper

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Tea (Camellia sinensis L.) is grown on different land elevation which is the oldest and best beverage in the world next to water (Choudhury, 1989). There are three types of tea: green, oolong and black. Black tea and green tea contain caffeine (1 to 5) % of its dry weight (Amra et al., 2006) depending on type, brand (Bennett and Bonnie, 2001) and brewing method (Hicks et al., 1996).The polyphenol contents are one of the major constituents of tea which is reported to account for up to 40 % of the dry weight (Clement, 2009). Green and Oolong tea are the most widely consumed beverages in Asian countries and has been familiar in China and Japan from centuries (Zaveri, 2006). Green tea hails from the two leaves and a bud of the Camellia…show more content…
Recent studies suggest that green tea contains powerful antioxidants. Green tea is made from unfermented leaves and reportedly contains the highest concentration of powerful antioxidants called polyphenols. As a source of dietary antioxidants tea infusions are also impart various physiological effects such as stimulant, refreshment, pain relief, reducing body mass, anti-cancer, reducing cardiovascular disease and strengthening the immune system [Hsu A et al., 2010]. Green tea has higher concentrations of cathechins than in black tea, where cathechins is a source of natural antioxidant and causes many health benefits (Jayakeerthana. 2016). Epidemiological studies suggest that consumption of green tea may have a protective effect against the development of several cancers, some oral diseases and solar radiations (Cabrera, 2013). Tea is an important dietary source of flavanols and flavonols(biologically active constituents of tea). According to Hakim et al. (2000) the flavonoid concentration of any particular tea beverage depends upon the type of tea (e.g., blended, decaffeinated instant) and preparation (e.g., amount used, brew time,

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