consisting of three extraction columns and three containers with thimbles, in which samples of powdered and dried tea were placed. The process was carried out in boiling ethanol (temperature, 78.5 8C) for 8 h.
consisting of three extraction columns and three containerswith thimbles, in which samples of powdered and driedtea were placed. The process was carried out in boilingethanol (temperature, 78.5 8C) for 8 h.