摘要
研究了以乳糖作为发酵底物时，不同乳糖浓度以及对高效产氢菌Biohydrogenbacterium R3 sp．nov．发酵与产氢效能的影响，实验发现当乳糖浓度为15g/L时，产气量和细胞干重分别达到最大值450ml和0．063g／L；当乳糖浓度为15g/L时，不同pH值对Biohydrogenbacterium R3 sp．nov．产氢发酵性能具有较大影响，当培养基pH值为5．0时，菌种Biohydrogenbacterium R3 sp．nov．的产气量和细胞干重分别达到最大值215ml和0．0648g／L。当pH值继续增加时，细菌生长受到抑制，气体产量明显下降。
The effect of fermentation and hydrogen production of Biohydrogenbacterium R3 sp. nov with lactose as substrate was researched. The results found that when lactose concentration was 15 g/L, the gas production and cell dry weight achieved the maximum of 450 ml and 0. 063 g/L, respectively. When lactose concentration was 15g/L, different pH value had a great influence on the fermentation of Biohydrogenbacterium R3 sp. nov. When pH was 5.0, the dry cell weight and gas production reached the maximum of 215 ml and 0. 0648g/L of Bio- hydrogenbacterium R3 sp. nov. When the pH values continued to increase, the cell growth was restrained and the gas production yield obviously decreased.
出处
《中国甜菜糖业》
2011年第3期8-10,37,共4页
China Beet & Sugar
基金
上海市重点科技攻关项目（071605122）.
