發(fā)布時間：2018-10-31 19:23

【摘要】：試驗應(yīng)用單一變量原則,以有機米糠為發(fā)酵底物,葡萄糖和淀粉為碳源,研究酵母菌對Na_2SeO_3、GeO_2富集轉(zhuǎn)化成有機硒和有機鍺的最適條件。試驗結(jié)果表明:培養(yǎng)基初始pH值為7.0、培養(yǎng)時間60 h、接種量10%、溫度30.2℃、米糠添加量為36 g/250 ml、裝液量80 ml/250 ml、Na_2SeO_3的添加量為12 mg/l、GeO_2添加量為120 mg/l,獲得有機硒最佳生產(chǎn)水平為2.27 mg/kg,有機鍺最佳生產(chǎn)水平為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，

本文編號：2303300