Adding too much pectin to dough weakens bread's texture.
The study looked at how adding low-ester pectin to wheat dough affects its properties. They used a method to measure the dough's behavior. The more pectin added, the less thick the dough became, but it also made the dough stronger. However, too much pectin can make the dough less stable and harder to mix. It's best to add no more than 8% pectin when making bread or other wheat foods.