1.ISO,HACCP,Kosher,FDA 2.Promote the development of immune system 3.brewer autolysed yeast powder 4.For food &feed Introduction: 1.The brewer yeast proceeded by autolysis,separation,vacuum concentrating and spray drying, to gain the product.2.It could supply sustenance for microorganisms in fermentation.3.Promote the development of immune system, and enhance the ability of the animal resistance.4 ...