With a glass of tea the healthiest

Posted in Wrestling Forums by meishengchao at 02:58, Jul 20 2016

After the start of the experiment, weighed 5 parts 1g tea, add five kinds of materials covered cup. Then separately with 250ml boiling water, tightly closed lid. Stand for 2 minutes after lessons each cup of tea 5ml, it placed sequentially numbered five Erlenmeyer flask. In another Erlenmeyer flask followed by adding 20ml of distilled water, 2ml starch solution. Finally, the solution of iodine to the Erlenmeyer flask, to add drop by drop, drip edge side shaking until conical flask of liquid from the tea yellow color to pink. Then dropping a few drops of records. Bubble tea good for 30 minutes, then repeat the experiment later step. Parallel measured three times and averaged.High Quality Barware Rocks Cocktail Glasses

According to the results, two minutes later, the amount of iodine consumed five samples of tea cups are about 11 drops, half an hour later, the amount of iodine consumed five samples of tea cups are about 26-28 drops, than two minutes consumed more iodine.High Borosilicate Water Resisting Glass Tube

Over time the tea antioxidants increased "From this experimental results, indicating when stamped brew for 30 minutes, the tea antioxidants compared with more than two minutes, but five kinds of cup of tea antioxidants no obvious change. so this experiment main test different materials bubble tea cup oxidation resistance strength due to polyphenols have antioxidant activity, iodine oxidation, oxidation-reduction reaction occurs between the two, iodine is reduced to iodide ion , iodide ion can not change the blue starch, starch iodine can change color. so 2% starch solution was poured into an aqueous solution of tea, drops of iodine solution, the sample solution drop was observed after how many drops of iodine solution has a blue-violet reaction, when polyphenols completion of the reaction, a solution of iodine and starch color. That is, the more the consumption of iodine, the higher the polyphenol content in the solution, tea antioxidant also stronger.High Quality Highball Drinking Tumblers Glass Cup