摘要
本实验研究了培养时间、温度、培养液初始pH、装液量、单宁浓度等条件对菌株降解单宁的影响。结果表明,黑曲霉降解水解单宁的适宜降解条件为28～30℃、pH 7.0、250 mL三角瓶中装入50～75 mL培养液,180 r/min连续培养3 d。随着单宁浓度的提高,降解率逐步降低。
The study was conducted to estimate the effects of cultivation time, temperature,liquid medium pH,liquid volume in flask,and tannin concentration on tannin degradation by Aspergillus niger.The results showed that：at the temperature 28 - 30 ℃ ,pH 7.0,liquid volume in flask 50 - 75 mL in 250 mL beakerflask,cuhivation for 3 d at 180 r/min, degradation rate achieved highest value.Degradation rate reduced gradually with increase of tannin concentration in liquid medium.
出处
《中国饲料》
北大核心
2011年第16期17-19,共3页
China Feed
关键词
黑曲霉
水解单宁
降解率
Aspergillus niger
hydrolytic tannin
degradation rate
