The analytical procedure for the determination of the dietary fiber requires the digestion of the sample with thermostable enzyme, that reproduce better than chemical methods the natural phenomena occuring  during digestion in man and animals.

For this purpose VELP has developed the GDE unit, which operates according to the official method AOAC n.o. 985.29 for the determination of the total dietary fiber.

GDE optimizes the delicate phase of the enzymatic digestions of the sample, working in reproducible and standardized conditions in order to obtain final reliable results.

The elevated performanceses are guaranteed thanks to a multiple magnetic stirrer that assures a continuous and constant sample mixing avoiding the sample overheating
at the same time.