咖啡因是茶和咖啡这类饮品的活性成分。
Caffeine is the active constituent of drinks such as tea and coffee.
科学家发现咖啡里面的咖啡因和阿司匹林类的解热镇痛抗炎药成分能够对抗酒精或酒类饮料产生的化学物质。
They found the caffeine in coffee and the anti-inflammatory ingredients of aspirin and other painkillers reacted against the chemical compounds of ethanol, or pure alcohol.
全世界有140多家机构，包括美国的食品药物管理局(Foodand DrugAdministration)认为咖啡因是一种安全成分。
And more than 140 regulatory agencies throughout the world, including the U.S. Food and Drug Administration, consider caffeine a safe ingredient.
咖啡因可能是咖啡含有的最知名的成分，但看起来却没什么作用。一项使用脱去咖啡因的咖啡所作的实验显示其也能达到同样的降低血糖浓度的效果。
Caffeine, perhaps coffee's most famous component, seems to have little to do with it; studies that looked at decaffeinated coffee alone found the same degree of risk reduction.
他们要求一组人学习一些新东西，然后服用了咖啡因，咖啡、茶和巧克力都含有这种活性成分。
They asked a group of individuals to learn something new, then the same people were given caffeine, the active ingredient in coffee, tea and chocolate.
除了糖和脂肪酸，其他软性饮料的成分，尤其令人关注。咖啡因，被加在许多最受欢迎的饮料，是一种温和上瘾的兴奋剂药物。
Besides the sugars and acids, other soft drink ingredients are of concern. Caffeine, which is added to many of the most popular soft drinks, is a mildly addictive, stimulant drug.
结果：样品中两种成分完全分离且线性关系良好，对乙酰氨基酚和咖啡因的加样回收率分别为99.3%和100.2%。
Result:Two components were completely separated and determined. The average recoveries were 99.3% for paracetamol and 100.2% for caffeine, respectively.
每罐红牛饮料和一杯过滤咖啡在咖啡因含量上是相同的，并融合了其它有提神功效的成分，如牛磺酸和葡萄糖醛酸内酯，它会让你一振冲天的！
One can contains about the same amount of caffeine as a cup of filtered coffee, and combined with other energy boosting ingredients, such as Taurine and Glucuronolactone, it gives you wings!
全世界有140多家机构，包括美国的食品药物管理局(Foodand DrugAdministration)认为咖啡因是一种安全成分。
And more than 140 regulatory agencies throughout the world, including the U. S. Food and Drug Administration, consider caffeine a safe ingredient.
全世界有140多家机构，包括美国的食品药物管理局(Foodand DrugAdministration)认为咖啡因是一种安全成分。
And more than 140 regulatory agencies throughout the world, including the U. S. Food and Drug Administration, consider caffeine a safe ingredient.
应用推荐