A mechatronics engineer works to automate the transfer of materials and goods, and the manufacturing process. Their tasks involve identifying areas for task automation, designing, developing and testing potential mechatronic devices, and implementing design solutions.
A typical tea bag has somewhere between a gram and two grams of stuff in it. If the entire contents were nothing but fructose, and that fructose completely dissolved when you made your tea, you'd consume between 4 and 8 calories (carbohydrates contain 4 calories per gram) per cup of tea -- so that's the ceiling.
The tea bags and extract showed a difference in the concentrations of EC, EGCG, ECG, and CAF; no significant difference was found for C. In the samples of ready-to-drink green tea, there was no difference between the concentrations of catechins and caffeine.