酵母菌富集有机硒和有机锗的条件筛选
发布时间：2018-10-31 19:23
【摘要】：试验应用单一变量原则,以有机米糠为发酵底物,葡萄糖和淀粉为碳源,研究酵母菌对Na_2SeO_3、GeO_2富集转化成有机硒和有机锗的最适条件。试验结果表明:培养基初始pH值为7.0、培养时间60 h、接种量10%、温度30.2℃、米糠添加量为36 g/250 ml、装液量80 ml/250 ml、Na_2SeO_3的添加量为12 mg/l、GeO_2添加量为120 mg/l,获得有机硒最佳生产水平为2.27 mg/kg,有机锗最佳生产水平为9.80 mg/kg。
[Abstract]:Using the principle of single variable, using organic rice bran as fermentation substrate and glucose and starch as carbon source, the optimum conditions for the enrichment and transformation of Na_2SeO_3,GeO_2 to organic selenium and organogermanium by yeast were studied. The results showed that the initial pH value of the culture medium was 7.0, the culture time was 60 h, the inoculation amount was 10, the temperature was 30.2 鈩，
本文编号：2303300
[Abstract]:Using the principle of single variable, using organic rice bran as fermentation substrate and glucose and starch as carbon source, the optimum conditions for the enrichment and transformation of Na_2SeO_3,GeO_2 to organic selenium and organogermanium by yeast were studied. The results showed that the initial pH value of the culture medium was 7.0, the culture time was 60 h, the inoculation amount was 10, the temperature was 30.2 鈩，
本文编号：2303300
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