agaru agar agar immuno electrophoresis apparatus agarosehexane-adenosine diphosphate agarose-graft-hyaluronan copolymer agar diffusion plaqueinhibition method agaricus blazei murill polysaccharides agaricus blazei murrill polysaccharide agarosehexane-adenosine triphosphate agar diffusion plauqe-inhibition method agar diffusion plaque-inhibition method Agaricus blazei Murill spore Polysaccharide