Comparative Study on Sterilization Effects and Quality of Ganoderma Lucidum Spore Powder by Two Irradiated Modes

Abstract:

In this study，the survival microorganism and quality of Ganoderma lucidum spore powder affected by electron beam and γ-rays was studied. The results showed that the microorganism and quality affected by electron beam was accordance with that of γ-rays. The D10 values of electron beam and γ-rays irradiation for aerobic bacterial count were 2.167 kGy and 2.172 kGy respectively，whereas the D10 values of mould and yeasts were 2.646 kGy and 2.452 kGy，respectively. When the irradiation dose was lower than 8 kGy，ganodermic polysaccharide of Ganoderma Lucidum spore powder was not significant difference irradiated by this two models. However，when the irradiation dose was higher than 8 kGy，the significant difference of ganodermic polysaccharide of Ganoderma lucidum spore powder was found. The irradiation dose of Ganoderma lucidum spore powder was best to lower than 8 kGy.