Product Details

Product:                                  Putus oat beta-glucan Low Mw standard kit
 
 
Structure description:      Linear chain with mixed linkage of (1,3) and (1,4); 
                                                 The ratio of tri- and tetra- building blocks 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
-30
PS-OB
G-50
PS-OBG
-80
PS-OBG
-130
PS-OBG
-160
PS-OBG
-200
PS-OBG
-260
Mw X 10-4 1.1 3.1 5.2 8.1 13.09 16.06 19.06 26.5
Pd 1.02 1.02 1.03 1.02 1.02 1.02 1.02 1.03

 

Molecular weights were determined by Viscotek triple detector array system including size exclusion chromatography, refractive index detector and light scattering detector using a 90o angle geometry. dn/dc = 0.146.
 
 
 
Figure The size exclusion chromatography profile of PS-OBG-LMw kit.
These curves from left to right represent PS-OBG-260 to PS-OBG-10 respectively
 
 Method of dissolution:
          
           1.   Measure a specified amount of standards in a sample bottle;
           2.   Add distilled water and dissolve it at 60 for 15-30minutes, stir the water gently until they dissolve homogeneously with the water;
           3.   Filtrate the solution with a 0.45 μm 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. If filtrated with a 0.45 μm filter and added 0.02 wt% sodium azide as an antiseptic, it can be preserved at 4℃ for 2 months