富锌益生素的制备及其培养条件的优化
发布时间：2019-05-21 14:24
【摘要】：试验旨在通过有益菌转化无机锌制备富锌益生素。将锌浓度为50 mg/ml的硫酸锌溶液与产朊假丝酵母、嗜酸乳杆菌、凝结芽孢杆菌种子液混合发酵培养,研究不同温度、培养时间、锌添加量、接种量、烘干温度对富锌益生素活菌数及锌转化率的影响。结果表明:硫酸锌溶液和复合菌固体发酵培养基中比例为1:200,混合种子液接种量比例为5%;发酵温度35℃;培养时间为36 h;烘干温度为60℃;得到的富锌益生菌总活菌数9.07×10~9 CFU/g,有机锌转化率为79.82%。用10倍剂量的富锌益生菌连续饲喂雏鸡5周,雏鸡健康状况良好。
[Abstract]:The purpose of the experiment was to prepare zinc-rich probiotics by transforming inorganic zinc into beneficial bacteria. The zinc sulfate solution with zinc concentration of 50 mg/ml was mixed with Pseudomonas aeruginosa, Lactobacillus aeruginosa and Bacillus cloacae seed liquid. The different temperature, culture time, zinc addition and inoculum size were studied. Effect of drying temperature on the number of zinc-rich probiotics and zinc conversion. The results showed that the proportion of zinc sulfate solution and compound bacteria in solid fermentation medium was 1 鈮，
本文编号：2482157
[Abstract]:The purpose of the experiment was to prepare zinc-rich probiotics by transforming inorganic zinc into beneficial bacteria. The zinc sulfate solution with zinc concentration of 50 mg/ml was mixed with Pseudomonas aeruginosa, Lactobacillus aeruginosa and Bacillus cloacae seed liquid. The different temperature, culture time, zinc addition and inoculum size were studied. Effect of drying temperature on the number of zinc-rich probiotics and zinc conversion. The results showed that the proportion of zinc sulfate solution and compound bacteria in solid fermentation medium was 1 鈮，
本文编号：2482157
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