Product Details

 
Product:                                 Oat Beta Glucan Mw Individual Standard  
 
 
Structure description:     Linear chain with mixed linkage of (1,3) and (1,4);
                                                    The ratio of tri- and tetra- building block is ~2:1
 

 
 
Properties:
                              ¡¡¡¡¡¡Appearance: white powder, odorless
                              ¡¡¡¡¡¡Starch: not detected (n.d.)
                                        Protein: n.d.
                                        Moisture: < 3%
                                        Arabinoxylan: < 0.5%
                                        Ash: < 0.5%
                                        Beta-glucan: > 97%
                                        Water-solubility: water soluble.
 
 
Molecular weight (Mw)and Polydispersity (Pd):
 
 
Standards PS-OBG
-10
PS-OBG
-20
PS-OBG
-30
PS-OBG
-50
PS-OBG
-80
PS-OBG
-130
PS-OBG
-160
Mw X 10-4 1.1 2.2 3.1 5.2 8.1 13.09 16.06
Pd 1.02 1.02 1.03 1.03 1.03 1.03 1.03
Standards PS-OBG-200 PS-OBG-270 PS-OBG-300 PS-OBG-500 PS-OBG-700 PS-OBG-900

 

Mw X 10-4 19.06 26.5 29.0 50.0 72.0 89.0

 

Pd 1.03 1.03 1.05 1.05 1.05 1.05

 

 
 
 
 
Weight average molecular weight Mw was determined by Viscotek triple detector array system equipped
   with  size exclusion chromatography, light scattering detector using a 90o angle geometry;
   dn / dc = 0.146
 
 
Method of dissolution:
          
           1.   Measure a specified amount of standards in a sample bottle;
           2.   Add distilled water and dissolve it at 60¡æfor 15-30minutes, stir the water gently until they dissolve homegeneously with the water;
           3.   Filtrate the solution with a 0.45 ¦̀m filter and a standard solution will be obtained.
 
 
 
Storage:
          
           1.   Store dry at room temperature in well sealed containers. Under these conditions, the product is stable for several years.
           2.   When in a liquid state, keep it in a refrigerator at 4¡æ. If filtrated with a 0.45 ¦̀m filter and added 0.02 wt% sodium azide as an antiseptic, it can be preserved at 4¡æ for 2 months.