Abstract:With ultrafine grinding process,an ultrafine powder of Garnoderma lucidum powder was obtained.Charactering and detecting results of the ultrafine powder,general powder(60 mesh) and superfine powder of Ganoderma showed that the particle diameter size distribution of the ultrafine powder was is 2.92~6.03 μm,the 50% particle diameter(D50) and the 100% particle diameter(D100) of the ultrafine powder were 3.18 μm and less than 9.96 μm,and showed unimodal distribution and well uniformity.The specific surface area of ultrafine powder with 3.63 μm/g is 15 times and 2 times of the general powder and superfine powder,respectively.Meanwhile,all cell walls of the ultrafine powder was completely broken.The leaching rate in water of polysaccharide,the main functional component within 20 minutes reached the level of the superfine powder at 2 hours which suggested that the bioavailability of the ultrafine powder of Garnoderma powder was effectively increased.The results will provide a new knowledge for developing new products with Garnoderma powder.
