What is the standard enthalpy of combustion of maltodextrin?

Question

Writing a lab about yeast metabolism and one metabolite we used was maltodextrin. I cannot find the standard enthalpy of combustion anywhere for this sugar but I can find it for the other sugars we used (glucose, fructose, and lactose.) I'm relating the standard enthalpy of combustion to the respiration rate (CO2 produced). Thank you.

Answer 1

Maltodextrin is a polymer of glucose, so unless you need a precise value, it can be safely estimated to be close to the enthalpy of combustion of glucose, but since it's a polymer, you would express the units not in kJ/mol but in kJ/mol*unit. If you know the "length" of maltodextrin you used, you can estimate its enthalpy per mole.