| 摘要 |
PURPOSE: A method for preparing more easily the liquid extract of camellia leaves which are thick and large is provided by going through heat treatment and cooling process compared to the existing ways needing complicated procedures and tools. The prepared extract is simple to keep and use. CONSTITUTION: A method for preparing the water-soluble liquid extract of camellia leaves comprises the steps of: (i) a first step to collect camellia leaves and steam; (ii) a second step to cool at normal or low temperature; (iii) a third step to extract in hot water, and boil water while extracting and add vitamin C as an antioxidant; and (iv) a fourth step to add some additives such as the extracts of green tea, ginseng, Cornus officinalis, fruits of schisandra chinensis, Jobs-tear, flax, and the fruit of the Chinese matrimony vine.
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