Watercolor painting to paints that use water-soluble, complex carbohydrates as a binder. Originally (in the 16th to 18th centuries), watercolor binders were sugars and/or hide glues, but since the 19th century, the preferred binder is natural gum arabic, with glycerin and/or honey as additives to improve plasticity and solubility of the binder, and with other chemicals added to improve product shelf life. The term "bodycolor" refers to paint that is opaque rather than transparent. It usually refers to opaque watercolor, known as gouache. Modern acrylic paints use a acrylic resin dispersion as a binder. Watercolor painters before the turn of the 18th
Gum arabic Sudanese are dependent on gum arabic for their livelihoods and it is still the world's largest single producer. The production of gum arabic is heavily controlled by the Sudanese government. Gum arabic slows the rate of absorption of some drugs, including amoxycillin, from the gut. Gum arabic Gum arabic, also known as acacia gum, arabic gum, gum acacia, acacia, Senegal gum and Indian gum, and by other names, is a natural gum consisting of the hardened sap of various species of the acacia tree. Gum arabic is collected from acacia species, predominantly "Acacia senegal" and "Vachellia (Acacia) seyal." The term