Given the background description of some cooking related query, summarize the question into a title

I am aware that there is a tendon which connects a chicken breast to it's tenderloin...what I"m curious about is the other white strip on the top of my boneless skinless chicken breasts as shown in this picture:I always cut my chicken up into small pieces so I always cut it out, but I realize that this can't really be done when baking or poaching the entire boneless skinless chicken breast.Can anyone shed some light on to what it is and whether I am wasting my time removing it? Does it dissolve when the chicken is baked?
What's this white strip on the top side of my boneless skinless chicken breast?

I am assembling a recipe for a glazed fruit pie, refrigerated and not cooked. The glaze will be made from a starch which will be boiled with water and sugar, poured over berries in a jelly roll pan and refrigerated to soft set. They'll then be placed into a cookie crumb crust and put back in the fridge to finish setting. It's all fairly simple.However most of the recipes I have found call for cornstarch. The store-bought glaze mixes I've found include tapioca starch (along with citric acid, salt, and some natural flavors/coloring). I have both tapioca starch and cornstarch on hand, as well as potato starch. Is there a benefit of any one over the others? For instance, I have read that cornstarch can impart a significant cornstarch flavor. Also, cornstarch will often result in a cloudier appearance when set. The goal here is a completely transparent appearance so one could barely tell that there was anything beyond fruit present. Any advice would be appreciated, thanks!
Creating a recipe for a glazed fruit pie - what starch to use?

I am considering ordering a few silicone kitchen utensils from China (like this). However, I am concerned about their food safety. The seller assures that the tools are made of "100% Food Grade Silicone" and food safe symbol (fork and wine glass icon) is there - however anyone can print anything on their products... The seller also assures that their products are certified by a number of agencies ("CIQ,EEC,FDA,LFGB,CE / EU,SGS", of which for certain I can recognize only FDA, EU may possibly mean European Union).Do you have any experiences with this producer or is there any official online resource (e.g. published by FDA or EU) that can be used to confirm food safety of products offered by a given producer?

Food safety of China-imported kitchen utensils