Snachito,

Did some searching on the topic for you and found you an answer..it appears your 50/50 mix is the best for post workouts:

Quote: To make the best possible blend, it is recommended that the carbohydrates be a 50/50 blend of dextrose (glucose) and maltodextrin. The dextrose will be absorbed very quickly and be put to work. But why not make it all dextrose you ask? Because glucose is actively transported across the cellular membrane into the muscle [9], there is a limit to the amount that can cross at any given time. Overloading the system can lead to it being oxidized, meaning that not all of it may end up in the muscles. Instead, we include maltodextrin, which takes a fraction longer to reach the ambush cite, and we are better able to create anabolic fusion.

Quote: Maltodextrin is a glucose polymer (a string of glucose units put together, similar to the protein peptide). It is therefore, by definition, a complex carbohydrate. However it's more complex nature does NOT slow digestion. Therefore, the GI and II remain high. Maltodextrin is the absolute best carbohydrate to consume during exercise for rapidly delivering blood glucose and for muscle glycogen recovery. It's also best for fluid uptake.

Dextrose (glucose) is a simple carbohydrate unit (similar to the amino acid). While it's good for exercise situations (malto is better), you're probably better off adding some dextrose to your maltodextrin formula. A little bit of dextrose may enhance the already excellent fluid uptake that occurs with maltodextrin during exercise.

Fructose is a simple carbohydrate unit, but it's structurally different from glucose. Due to its structure, it can possibly cause GI problems and/or decrease fluid uptake with exercise. Fructose, unlike other simple carbs, has to be "treated" in the liver and it reaches the muscle slowly.

Finally, sucrose consists of glucose and fructose units bonded together. Therefore, upon digestion, you get glucose and fructose in the GI (and the benefits and consequences of each).