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.
Black tea is allowed to oxidize slightly before being dried to bring out a bolder, richer flavor. Herbal teas contain no Camellia sinensis leaves at all. Their flavor comes from a combination of herbs, spices, botanicals and natural flavors. Since they contain no tea leaves, herbal teas are naturally caffeine free. Oolong tea is a classic variety thatâs partially oxidized.