WEI Jiao-yang,FENG Long,LI Ya-ning,et al.Fermentation Condition Optimization of Endogenous Bacillus amyloliquefaciens X-278[J].Northern Horticulture,2014,38(05):106-110.
内生解淀粉芽孢杆菌X-278发酵条件的优化
- Title:
- Fermentation Condition Optimization of Endogenous Bacillus amyloliquefaciens X-278
- 文章编号:
- 1001-0009(2014)05-0106-05
- 关键词:
- 内生解淀粉芽孢杆菌X-278; 发酵; 单因素; 正交实验
- Keywords:
- endogenous Bacillus amyloliquefaciens X-278; fermentation; single factor; orthogonal experiment
- 分类号:
- S 476+.9
- 文献标志码:
- A
- 摘要:
- 以内生解淀粉芽孢杆菌为试材,采用单因素和正交实验,通过比较发酵液的生物量及其对棉花黄萎病菌的抑菌活性,对内生解淀粉芽孢杆菌(Bacillus amyloliquefaciens)X-278液体发酵条件进行了优化。结果表明:内生解淀粉芽孢杆菌X-278培养基各组分的最佳配比为葡萄糖1.5%、花生饼粉2%、硫酸铵0.5%、碳酸钙0.1%、硫酸镁0.5%、氯化钠0.5%;最佳发酵培养条件为初始pH 7,培养温度34℃,转速180 r/min,种龄为24 h,装液量150 mL/500mL三角瓶,接种量2%,发酵时间为72 h。优化后的发酵液中活菌数量达到1.5×1010 CFU/mL,对棉花黄萎病菌的抑菌圈直径为33.4 mm。
- Abstract:
- Taking Bacillus amyloliquefaciens as test material,using single factor and orthogonal experiments,and through comparing biomass of fermentation broth and bacteriostatic activity against Verticillium dahliae Kleb,the fermentation conditions of endogenous Bacillus amyloliquefaciens X-278 were optimized.The results showed that the final optimization of the medium and conditions:1.5% glucose,2% peanut power,0.5%(NH4)2SO4,0.1% CaCO3,0.5% MgSO4,0.5% NaCl,pH 7,culture temperature 34℃,rotation speed 180 r/min,seed liquid age was 24 h,liquid volume was 150 mL/500mL of triangular flask,inoculum size was 2%,incubation time was 72 h.After optimizing,the number of viable bacteria was to 1.5×1010 CFU/mL in the fermentation broth,and the diameter of inhabiting circle against Verticillium dahliae was 33.4 mm.
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备注/Memo
第一作者简介:魏娇洋(1987-),女,河北石家庄人,硕士研究生,研究方向为天然产物农药。