from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A polysaccharide consisting of many galactose residues.
from The Century Dictionary and Cyclopedia
- n. A gummy substance, C6H10O5 (γ-galactan), allied to manna, which is extracted from the seeds of legumes and is formed to a small extent during certain fermentations.
Sorry, no etymologies found.
The best known of these is agar, a sulphated galactan which is extensively used in microbiological and public health laboratories, as a culture medium for bacteria and fungi.
This is also a sulphated galactan, extracted from red seaweeds such as Chondrus,
Schultze and Maxwell state that raw coffee contains galactan, mannan, and pentosans, the latter present to the extent of 5 percent in raw and 3 percent in roasted coffee.