Unfractionated heparin as a pharmaceutical is heparin that has not been fractionated to sequester the fraction of molecules with low molecular weight. In contrast, low-molecular-weight heparin has undergone fractionation for the purpose of making its pharmacodynamics more predictable.nfractionated heparin as a pharmaceutical is heparin that has not been fractionated to sequester the fraction of molecules with low molecular weight. In contrast, low-molecular-weight heparin has undergone fractionation for the purpose of making its pharmacodynamics more predictable.
Best Answer: Yogurt is sour because it contains lactic acid which also gives it its distinctive taste. Yogurt is only sweet if sugar or artificial sweeteners are added.
How to Buy the Healthiest Yogurt. To make yogurt, all that's needed is milk and two live bacterial cultures, Lactobacillus bulgaricus and Streptococcus thermophilus, which turn the milk into yogurt via fermentation. Beyond that, a few added extras for flavor, like a little sugar or some fruit, are fine, Kaufman says.