Lignocellulose was prepared from cedar sawdust and used to isolate caffeine and tea catechins from tea extract by static adsorption and gradient elution using water and 80% ethanol.
以杉木屑为原料制备木质纤维素，采用静态吸附、蒸馏水和80%乙醇分段洗脱等实验，研究其对茶儿茶素类及咖啡因选择性吸附作用。
The 2004 presents aromas of violets, cedar, black tea leaves, black peper and brioche.
此款2004年份干红散发出紫罗兰，雪松，红茶茶叶，黑胡椒及奶油甜点的芳香。
The 2004 presents aromas of violets, cedar, black tea leaves, black peper and brioche.
此款2004年份干红散发出紫罗兰，雪松，红茶茶叶，黑胡椒及奶油甜点的芳香。
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