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Which links (1-3, 1-6,…) in the beta glucans are really active ? (General Information) |
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Various biological activities have been reported for the ß-glucans either from yeast, algae, mushrooms or plants. What differentiates the yeast ß-glucans from the plants ones is the structure of the polymers. Yeast ß-glucans show 1->3 links with 1->6 ramifications. In their native state, they have a high molecular weight and are slightly soluble. Plant ß-glucans like oat or barley display unbranched 1->4 linked glucose separated every two or three units by a single 1->3 linked glucose. They also are of high molecular weight but much more soluble, forming viscous solutions. Both oat and yeast ß-glucans have been recognized as modulators of the glycemic response or as effectors of cholesterol lowering. Dealing with macrophage activation and non specific immunostimulation, the relation of carbohydrates structure to activity is more controversial but there is a much higher number of publications with ß 1->3 ß 1->6 glucans from yeast than from oat or other sources like algae (laminarin) or mushroom (lentinan).
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FAQ
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Quelles sont les doses de Levure inactivée en alimentation animale ?
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