樺剝管孔菌液體發酵環境條件的研究
Optimization of Parameters Affecting Extracellular Polysaccharide Production in Submerged Cultures of Piptoporus betulinus
【作者】 王麗華; 田雪梅; 畢旺華; 梁大勇; 王銀平; 宋愛榮;
【Author】 WANG Lihua,TIAN Xuemei,BI Wanghua,LIANG Dayong, WANG Yinping,SONG Airong Qingdao Agriculture University Medical Fungi Key Laboratory,Qingdao,Shandong 266109,China
【機構】 青島農業大學藥用真菌重點實驗室;
【摘要】 以發酵液的多糖含量為考核指標,通過單因素試驗和正交試驗,對樺剝管孔菌(Piptoporus betulinus)液體發酵的接種量、培養基裝量及培養基初始pH進行優化。結果表明,優化的樺剝管孔菌培養條件為:接種量2.5%、500mL三角瓶裝200mL液體發酵培養基、培養基初始pH自然條件下,發酵6d時,發酵液中多糖含量最高(28.75%)。
【Abstract】 Orthogonal testing [L9(33)] was used to define more precisely the factors,determined on the basis of single factor experiments,affecting extracellular polysaccharide production in submerged cultures of Piptoporus betulinus.Data revealed that the optimal culture conditions consisted of 2.5% inoculum size,200 mL medium in a 500 mL culture flask,and an initial pH of 5.6.Under these conditions,total polysaccharide concentrations reached 0.18 mg/mL.
【關鍵詞】 樺剝管孔菌; 液體培養; 培養基裝量; 接種量; 培養基初始pH;
【Key words】 Piptoporus betulinus; spent culture fluid; polysaccharide; optimized culture conditions; inoculum size; medium volume; initial pH;
【基金】 山東省科技攻關項目(編號:2010GNC10956)的部分研究內容
【分類號】S567.39