Cinnamomum cassia United Kingdom, and India is Chinese cinnamon. "Indonesian cinnamon" ("C. burmannii") is sold in much smaller amounts. Chinese cassia is produced in both China and Vietnam. Until the 1960s, Vietnam was the world's most important producer of Saigon cinnamon, which has a higher oil content , and consequently has a stronger flavor. Because of the disruption caused by the Vietnam War, however, production of Indonesian cassia in the highlands of the Indonesia island of Sumatra was increased to meet demand. Indonesian cassia has the lowest oil content of the three types of cassia, so commands the lowest price. Chinese cassia
Cassia gum Cassia gum The term cassia gum refers to the flour made from the endosperms of the seeds of "Senna obtusifolia" and "Senna tora" (also called "Cassia obtusifolia" or "Cassia tora"). It is composed of at least 75% polysaccharide, primarily galactomannan with a mannose:galactose ratio of 5:1, resulting in a high molecular mass of 200,000-300,000 Da. In 1995, cassia gum was added to the list of approved food additives in Japan by the Japanese Ministry of Health and Welfare. Two GRAS notices were filed to the U.S. Food and Drug Administration (FDA), one on June 23, 2000 (GRN 51) and one