Which of following is a trisaccharide?
Which of following is a trisaccharide?
Select an option to attempt
Correct Answer: Option B
Explanation
Saccharide classification by number of monosaccharide units: Monosaccharide (1 unit): Mannose (hexose, aldose). Disaccharides (2 units): Trehalose (-Glc--Glc, non-reducing); Cellobiose (-Glc--Glc,-1,4-linked, reducing). Trisaccharides (3 units): Kestose (-Glc--Fru--Fru or-Glc-1,2--Fru-1,6-Fru depending on isomer — a fructooligosaccharide/FOS). Raffinose (Gal-Glc-Fru) is another common trisaccharide. Therefore kestose = trisaccharide.