TO RETAIN, practice. To engage the services of an attorney or counsellor to manage a cause, at which time it is usual to give him a fee, called the retaining fee. The act by which the attorney is authorized to act in the case is called a retainer.
One explanation for the difference in the levels of catechins found in this study and others is the type of samples used. In comparative studies, leaves of Camellia sinensis 4 Discussion Table 1. Levels of catechins and caffeine in tea bags, extract, and ready-to-drink green tea.
Also, the small leaf Camellia Sinensis or the China tea plant has lower content of caffeine as compared to the Camellia Assamica or the large leafed Assam tea plant. However, one factor that in no way impacts the caffeine content of tea is the oxidation level. All varieties of teas â be it Green, black, oolong, and white teas contain caffeine. Another aspect that impacts caffeine content is the tea preparation method.