Colombe is an uncommonly occurring given name for women but a very prominent last name for all people (#47120 out of 150436, Top 31%). (2000 U.S. Census). Charted below is the birth name popularity of Colombe for girls. Colombe has yet to make it into the list so far.
If you look at processed food, you see all sorts of other gums like carrageenan, xanthan gum, cellulose gum, locust bean gum, agar, and so on. They thicken things: Ice cream, marshmallow fluff, pancake syrup, etc., all benefit from thickening.
Carrageenan Uses in Food and Personal Care Products[1] There are two types of carrageenan, which differ due to the manufacturing process used to extract the compound from seaweed. One is called refined carrageenan E407, and the other is lesser-refined carrageenan E407a, also known as PES (Processed Eucheuma Seaweed).