Effect of spring oilseed rape crop density on plant root biomass and ... by Cepuliene, Rita; Marcinkeviciene, Ausra; Velicka, Rimantas; Kosteckas, Robertas; Pupaliene, Rita / Estonian Journal of Ecology.
A study in Washington State gathered 154 first to fifth graders from two elementary schools. The students were given four gummy bears made with either xylitol or maltitol (types of sugars used in many types of sugarless chewing gum) three times a day during school hours. All were checked for plaque and bacteria in their mouths at the start of the study and six weeks later.
The basic components of chewing gum are gum base, softeners, sweeteners and flavorings. Gum base is the main ingredient in chewing gum. It's what makes the gum chewy. Long, long ago, chewing gum was made from various tree saps. One of the most popular was the latex sap called chicle from the sapodilla tree. Today, gum base is usually made from synthetic rubber or a mix of artificial and natural materials.