摘要： 采用单因素试验研究了培养基组成、培养温度、培养基pH值和溶解氧等对秸秆发酵生物添加剂生长的影响,优化了秸秆发酵生物添加剂的发酵参数。通过5 L发酵罐上罐试验确定秸秆发酵的最佳培养条件为:培养基合成,温度30℃,pH 5.0,搅拌速度300 r/min,通气量4 L/min,发酵周期24~27 h,酵母菌和乳酸菌的最大菌液浓度分别可达2.00×108,2.55×109个/mL。
关键词:
秸秆发酵,
生物添加剂,
工艺参数,
优化
Abstract: The effects of culture component,temperature,pH and dissolved oxygen on the growth of bio-additive of crop straws fermentation were studied by single factor test and the fermentation parameters of the mix strains were optimized.The results got from 5 L fermentation tank tests showed that the optimal culture conditions were compound culture,30℃,pH 5.0,300 r/min,air flow 4 L/min and fermentation periods 24-27 h,and the maximal concentrations of live microzyme and lactobacillus were 2.00×108,2.55×109 individuals/mL in the fermentation liquid,respectively.
Key words:
Crop straws fermentation,
Bio-additive,
Technical parameters,
Optimization
中图分类号:
谢凤行, 赵玉洁, 周可, 张峰峰, 李亚玲. 秸秆发酵生物添加剂发酵工艺参数的优化[J]. 华北农学报, 2008, 23(3): 219-222. doi: 10.7668/hbnxb.2008.03.051.
XIE Feng-xing, ZHAO Yu-jie, ZHOU Ke, ZHANG Feng-feng, LI Ya-ling. Optimization of Fermentation Technical Parameters for Bio-additive of Crop Straws Fermentation[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(3): 219-222. doi: 10.7668/hbnxb.2008.03.051.