科研之友
微信
新浪微博
Facebook
分享链接
摘要
Objective: Green tea is known to possess a health function based on the diverse phytochemicals and minerals contained in it. However, studies on mineral intake through green tea consumption are limited. The purpose of this study was to analyze the mineral contents contained in green tea leaves and its infusion, and to evaluate the intake status of minerals through green tea. Methods: After analyzing the mineral contents contained in the 3 types of commonly used green tea leaves and their infusion, the National Health and Nutrition Examination Survey data reported from 2010 to 2012 based a the total 16,369 subjects used to evaluate the intake of green tea and the status of mineral intake through green tea. Results: Among 9 minerals of green tea leaves, Ca (318.1 mg/100 g) showed the highest content, and Mo (10.3 mu g/100 g) showed the lowest content. The extraction rate of minerals from green tea ranged from 4.6% for Ca to 30.0% for Mg. Daily mineral intakes through green tea were Ca 0.5 mg, P 2.2 mg, Mg 1.6 mg, Mn 0.5 mg, and Zn 9.3 mu g, and such values were 0.1%, 0.3%, 0.5%, 13.2%, and 0.1% respectively of their recommended intakes. Conclusion: These results indicate that consumption of green tea may contribute greatly to the intake of Mn.
- 出版日期2017
